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Journey information
Overview: Denver, CO to San Diego, CA flight
USAUSA
Flights from Denver, CO to San Diego, CA depart on average 75 times per day, taking around 3h 36m. Cheap flight tickets for this journey start at $20 (€17) if you book in advance.
There are 7 flights per day. The earliest flight runs at 05:00, the last at 23:58. The fastest flight covers the 832 miles (1340 km) distance in 2h 23m. September is the cheapest month to fly.
Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
Distance 832 miles (1340 km) |
Average flight duration 3h 36m |
Cheapest ticket price $20 (€17) |
Flights per day 75 |
Direct flights 7 |
Fastest flight 2h 23m |
Cheapest month September |
First flight 5:00 AM |
Last flight 11:58 PM |
Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
The cheapest and fastest flights from Denver, CO to San Diego, CA
Showing times and prices for Apr 04
Cheapest price
$31
Average price
$34
Fastest journey
2 h 30 m
Average duration
2 h 36 m
Flights per day
2
Distance
1340 km
Cheap tickets
The best way to find a cheap flight ticket from Denver, CO to San Diego, CA is to book your journey as far in advance as possible and to avoid traveling at rush hour.
The average ticket from Denver, CO to San Diego, CA will cost around $34 if you buy it on the day, but the cheapest tickets can be found for only $31.
Fast flights
Of the 2 flights that leave Denver, CO for San Diego, CA onSat, Apr 04, 2 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
On Sat, Apr 04 the direct flights cover the 1340 km distance in an average of 2 h 36 m but if you time it right, some flights will get you there in just 2 h 30 m .
On Sat, Apr 04 the longest flights will take 2 h 41 m and usually involve a change or two along the way, but you might be able to save a few pennies if you’re on a budget.
1:20 PM2h41Denver, CO4:01 PMSan Diego, CA$311One-way0 transfers- 5:29 AM2h30Denver, CO7:59 AMSan Diego, CA$361One-way0 transfers
- 5:29 AM2h30Denver, CO7:59 AMSan Diego, CA$361One-way0 transfers
- 1:20 PM2h41Denver, CO4:01 PMSan Diego, CA$311One-way0 transfers
Travel Information
Compare bus, train, and flight for Denver, CO to San Diego, CA
Omio recommends booking the bus as it is the most popular option from Denver, CO to San Diego, CA among Omio's users. If you are prioritising price take the flight with prices starting from $20. For those with little time consider booking a flight which can get you there in 3h 36m. The ticket price range depends on the travel mode: a flight costs an average of $20, and a train costs an average of $203.
Distance: 832 miles (1340 km)
Compare flight with
| Flight | Most popular Bus | Train |
|---|---|---|
$103 Average price Cheapest | $210 Average price | $638 Average price |
6h 36m Average total duration Fastest 3h 36m Onboard + 3h 0m Additional time* | 25h 37m Average total duration 25h 7m Onboard + 30m Additional time* | 43h 49m Average total duration 43h 19m Onboard + 30m Additional time* |
Most popular airline |  Most popular bus company |  Most popular train company |
Direct Options | Direct Options | Direct Options |
Live departures
Denver, CO to San Diego, CA flight times
The table below shows live departures for Denver, CO to San Diego, CA flights for tomorrow, Friday, April 3. You can also manually refresh the results below to see updated flight journeys.
Last updated at
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
| 5:29 AM Denver, CO | 2h30 | 7:59 AM San Diego, CA | 0 transfersDirect | |
| 1:20 PM Denver, CO | 2h41 | 4:01 PM San Diego, CA | 0 transfersDirect | |
This is the last flight of the day. | |||||
Find all the dates and times for this journey
Compare prices and tickets Denver, CO to San Diego, CA by bus, train, or flight
Compare bus, train, and flight prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.
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Why should you book Denver, CO to San Diego, CA flights with Omio?
frontier airlines as well as American Airlines, Alaska Airlines, United and more offer flights services from Denver, CO to San Diego, CA.
Omio is an official ticket reseller for all your travel options from Denver, CO to San Diego, CA.
Why book with Omio vs frontier airlines?
- Compare with other providers: On Omio, you can not only buy tickets for frontier airlines, but also compare tickets for the likes of American Airlines, Alaska Airlines or United to find the best option for your trip from Denver, CO to San Diego, CA.
- Designed for International Travelers: Omio is in your language including 24/7 customer service and offers multiple payment options, including PayPal, credit cards, and bank transfer, in your preferred currency.
- Compare all your options: Omio allows you to compare frontier airlines with all available travel options, which are bus, train and flight to ensure you get the best deal for traveling from Denver, CO to San Diego, CA.
Why book with Omio over Trip, Edreams or Kayak?
- Compare with other providers: On Omio, you can also compare tickets for the likes of American Airlines, Alaska Airlines or United to find the best option for your trip from Denver, CO to San Diego, CA.
- Multiple modes of transport: Omio allows you to compare travel options including bus, train and flight to find the ideal travel option from Denver, CO to San Diego, CA.
Airlines: frontier airlines, American Airlines, Alaska Airlines, United from Denver, CO to San Diego, CAFind the best flights between Denver, CO to San Diego, CA with Omio's travel partners frontier airlines, American Airlines, Alaska Airlines, United from $20 (€17). We can find you the best deals, schedules and tickets when comparing and booking the best trip.
United
About
United Airlines, established in 1926, is a major U.S. airline headquartered in Chicago, Illinois. Operating an extensive domestic and international network, United serves more destinations than any other airline, connecting travelers across six continents. The airline's eight hubs include Chicago–O'Hare, Denver, Houston–Intercontinental, Los Angeles, Newark, San Francisco, Washington–Dulles, and Guam. As a founding member of the Star Alliance, United offers a comprehensive range of services, including regional flights through United Express, catering to both leisure and business travelers. The airline is committed to sustainability, investing in sustainable aviation fuel and innovative technologies to reduce its environmental impact.
Luggage & cancellation policy
Average Duration
2h 24m
Cheapest Price
$182 (€148)
United frequency
33 a day
Luggage included
Carry-on baggage allowance is 7kg total (2 pieces max. ) for both Choice and Flex fares on United Airlines and Virgin Australia flights.
Additional luggage
Excess baggage fees apply for additional checked luggage beyond the standard allowance.
Luggage storage
Both airlines provide checked baggage services for storing luggage during flights.
Cancellation Policy
Cancellation fees apply per person, per booking, with specific fees for different fare types.
Refund
Not applicable to flights; however, full refunds are available if flights are canceled by the airline.
Pregnant on board
Pregnant passengers are permitted to travel, with specific guidelines and medical certificates required after a certain gestational period.
Unaccompagned minor
Unaccompanied minors are permitted to travel, with specific age restrictions and services provided.
Amenities on board the airplane
Wifi
Food sold onboard
Meals and snacks are included on international flights operated by United Airlines and Virgin Australia.
Seat reservation
Seat selection may incur additional fees, depending on the fare type and airline.
Toilets
USB plugs
Accessibility
United Airlines and Virgin Australia offer services to and within Australia, providing accessible travel options for passengers with mobility needs.
Bikes
Both airlines permit bicycles onboard, with specific guidelines and fees.
Pets
United Airlines and Virgin Australia allow pets onboard, subject to specific policies and fees.
American Airlines
About
American Airlines is one of the largest airlines in the world, connecting travelers to hundreds of destinations across the United States, Latin America, Europe, Asia, and beyond. Operating from major hubs such as Dallas/Fort Worth, Miami, and Charlotte, American offers a wide range of travel options. Passengers can choose from Economy with affordable fares, Premium Economy with extra space, or Business and First Class featuring flat-bed seats, premium dining, and lounge access. With a modern fleet and membership in the oneworld alliance, American Airlines combines global reach with comfort and reliability.
Luggage & cancellation policy
Average Duration
4h 10m
Cheapest Price
$95 (€78)
American Airlines frequency
26 a day
Luggage included
1 carry-on bag (22 x 14 x 9 inches) and 1 personal item (18 x 14 x 8 inches) included in most fares
Additional luggage
Checked bags fees vary by route. First checked bag typically $30, second $40 on domestic flights
Cancellation Policy
Basic Economy tickets cannot be changed or refunded. Other fares allow changes with fee, refunds subject to fare rules.
Pregnant on board
Passengers can fly up to 36 weeks for single pregnancies, 32 weeks for multiple pregnancies. Medical certificate required within 7 days of departure if within 4 weeks of due date.
Unaccompagned minor
Children ages 5-14 can travel alone using American Airlines Unaccompanied Minor Service. Service fee is $150 each way.
Amenities on board the airplane
Wifi
Food sold onboard
USB plugs
Accessibility
American Airlines provides wheelchair assistance and special services for passengers with disabilities. Assistance must be requested at least 48 hours before departure.
Pets
Small dogs and cats allowed in cabin for $125 fee. Must be in approved carrier under seat. Service animals allowed.
Alaska Airlines
About
Alaska Airlines, headquartered in SeaTac, Washington, is a major U.S. airline and the fifth-largest in North America by scheduled passengers carried as of 2024. Along with its regional partners, Horizon Air and SkyWest Airlines, Alaska Airlines operates a route network primarily connecting cities along the West Coast of the United States, including Alaska and Hawaii, to over 100 destinations in the contiguous U.S., the Bahamas, Belize, Canada, Costa Rica, Guatemala, and Mexico. The airline is a member of the Oneworld alliance, offering passengers access to a broad global network. Alaska Airlines is known for its customer service and loyalty program, Mileage Plan, and offers First Class, Premium Class, and Main Cabin seating options. The airline's primary hub is Seattle-Tacoma International Airport. In 2024, its parent company, Alaska Air Group, acquired Hawaiian Airlines.
Luggage & cancellation policy
Average Duration
2h 23m
Cheapest Price
$150 (€122)
Alaska Airlines frequency
23 a day
Luggage included
1 carry-on bag (22 x 14 x 9) and 1 personal item included
Additional luggage
Checked bags fees start at $30 for first bag, $40 for second bag
Cancellation Policy
Saver fares are non-refundable. Main and First Class fares are refundable with fee, depending on fare type and elite status
Pregnant on board
Passengers can fly up to 36 weeks pregnant. After 28 weeks, medical certificate required
Unaccompagned minor
Unaccompanied minor service available for children ages 5-17. Service fee is $50 per direction on nonstop flights
Amenities on board the airplane
Wifi
USB plugs
Accessibility
Alaska Airlines provides wheelchair assistance and special services for passengers with disabilities, including meet-and-assist services and accessible seating
Pets
Pets allowed in cabin and cargo hold. Service animals welcome. Fees apply for pets in cabin ($100)
frontier airlines
About
Frontier Airlines is a major American ultra-low-cost carrier headquartered in Denver, Colorado, operating flights to over 120 destinations across the United States, Caribbean, Mexico, and Central America. Known for its "Low Fares Done Right" philosophy, Frontier focuses on offering affordable travel by allowing passengers to choose and pay only for the services they need, such as seat selection or baggage. The airline is also recognized for its commitment to fuel efficiency, claiming to be "America's greenest airline" due to its modern, lightweight aircraft and operational practices. A distinctive feature of Frontier is the animal featured on the tail of each aircraft, highlighting North American wildlife.
Luggage & cancellation policy
Average Duration
2h 30m
Cheapest Price
$20 (€17)
frontier airlines frequency
10 a day
Luggage included
Personal item (18 x 14 x 8 inches) included
Additional luggage
Checked bag fees start at $79 per bag
Cancellation Policy
Non-refundable tickets, changes permitted for fee starting at $79 plus fare difference
Pregnant on board
Pregnant women can travel up to 7 days before due date, medical certificate required after 36 weeks
Unaccompagned minor
Children ages 5-14 can travel alone for $100 fee each way, must be nonstop flight only
Amenities on board the airplane
Wifi
Accessibility
Frontier Airlines offers assistance for passengers with disabilities, including wheelchair service and boarding assistance. Passengers are encouraged to request these services in advance to ensure availability and proper arrangements.
FAQs: Denver, CO to San Diego, CA Flight
Find answers to the most common questions about traveling from Denver, CO to San Diego, CA by flight. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest flight, the cheapest option, or tips for making the most of your visit at San Diego, CA, this guide helps you travel smarter and with confidence.
Cheap plane tickets from Denver, CO to San Diego, CA can start from as little as $20 (€17) when you book in advance. The average flight ticket price for Denver, CO to San Diego, CA is $103 (€84) ; however, prices vary depending on the time of day and class and they tend to be more expensive on the day.
The average journey time by plane from Denver, CO to San Diego, CA is 2h 23m to travel the 832 miles (1340 km) long route. Journey times can vary on weekends and holidays, so use our Journey Planner to search for a specific date.
The earliest flight from Denver, CO to San Diego, CA leaves at 5:00 AM. Plan your trip with the Journey Planner from Omio.
The latest flight from Denver, CO to San Diego, CA leaves at 11:58 PM.
Yes, there are 7 direct flights a day from Denver, CO to San Diego, CA with frontier airlines, Alaska Airlines, United. Schedules can vary on holidays or weekends with fewer direct flights.
When taking a flight from Denver, CO to San Diego, CA, you can count on frontier airlines, American Airlines, Alaska Airlines, United for the best way to get you to San Diego, CA. You can also check all possible airlines who offer a service between Denver, CO and San Diego, CA and compare the amenities they offer before buying a plane ticket.
Flights from Denver, CO to San Diego, CA generally leave from Denver International Airport and arrive in San Diego International Airport.Denver International Airport is 11 miles (18 km) away from Denver, CO city centre and San Diego International Airport is 2 miles (4 km) from San Diego, CA city centre.
The cheapest month for a flight from Denver, CO to San Diego, CA is September.
It's helpful to compare your options as there are 3 ways to travel between Denver, CO and San Diego, CA including taking a bus, train, and flight.
Since neither Denver, CO nor San Diego, CA are in the Schengen Area, passport requirements depend on the specific immigration rules of United States and United States. Entry and visa requirements can be subject to change. For the latest information, check with your destination's embassy or consulate.
There is a time difference of 1 h between Denver, CO and San Diego, CA all year round.
The best events to attend in San Diego, CA include:
- Comic-Con International, the largest comic book and popular arts convention in the world
- San Diego County Fair, a month-long fair featuring rides, games, and local food
- San Diego Beer Week, a celebration of craft beer with tastings and events across the county
- La Jolla Music Festival, an annual event showcasing classical music performances in a picturesque coastal setting.
Some of the most interesting sights to explore in San Diego, CA are:
- Balboa Park, a sprawling urban park with museums, gardens, and the San Diego Zoo
- USS Midway Museum, a historic naval aircraft carrier museum offering interactive exhibits and tours
- La Jolla Cove, a picturesque coastal area known for its stunning views and marine life
- Gaslamp Quarter, a lively historic district with Victorian architecture, dining, and entertainment options
- Coronado Beach, a beautiful sandy beach known for its gentle waves and iconic hotel.
The best holidays to experience in San Diego, CA include:
- Memorial Day, ideal weather for beach activities and outdoor events
- Independence Day, spectacular fireworks and patriotic celebrations
- Labor Day, perfect for enjoying the last days of summer at the beach
- Thanksgiving, a time for family gatherings with pleasant fall weather.
The best things to do in San Diego, CA include:
- Explore the vibrant art scene at the Museum of Contemporary Art San Diego
- enjoy a harbor cruise for stunning views of the skyline and naval ships
- hike the scenic trails at Torrey Pines State Natural Reserve
- visit the Birch Aquarium to learn about marine life and ocean conservation
- experience the thrill of a whale watching tour off the coast.
The best season to visit San Diego, CA is Spring or Fall. The best weather to explore San Diego, CA is during April-June or September-November.
We recommend using the bus as it is the most popular way to get from Denver, CO to San Diego, CA among Omio's users.
For domestic flights we recommend to arrive 1.5 to 2 hours before departure. Please check the website of your departure airport if in doubt. Some airports may offer booking time slots for security checks or offer additional information on when to get there based on time of day.
Most airlines permit carry-on bags that fit within specific dimensions (e.g., 22 x 14 x 9 inches or 56 x 36 x 23 cm), including handles and wheels. Bags must fit in the overhead bin or under the seat in front of you.
Many airlines impose weight limits, commonly ranging between 7 kg (15 lbs) and 12 kg (26 lbs). Typically, passengers are allowed one carry-on bag and one personal item (for example a purse, laptop bag, or backpack). Personal items must fit under the seat in front of you. Budget Airlines (like Ryanair or Wizz Air) have stricter size and weight limits, often requiring fees for larger carry-ons. Full-Service Airlines have more lenient policies, sometimes including more spacious dimensions or higher weight limits depending on your ticket class.
The list of items prohibited on an airplane varies by country and airline, but in general, the following items are not allowed in carry-on or checked baggage: Weapons and self-defence items, sharp objects, flammable materials, explosives, toxic substances, or liquids over 100ml (except for medications and baby essentials). In checked baggage, firearms (without authorization), explosives, large lithium batteries, and hazardous chemicals are prohibited. Electronic cigarettes must be in carry-on bags, while alcohol and dry ice have restrictions. Always check with your airline for specific regulations.
The currency used in the United States is the US Dollar (USD). For travelers, using cards is generally more convenient and widely accepted, especially credit and debit cards, while cash is useful for small purchases or places that do not accept cards.
In San Diego, CA, travelers should be cautious of pickpocketing and petty theft, especially in crowded areas like beaches, public transportation, and popular tourist spots such as the Gaslamp Quarter and Old Town. Common scams include overpriced parking fees and unauthorized ticket sellers near attractions. Staying aware of surroundings, securing belongings, and using official transportation services help reduce risks. Additionally, travelers should avoid isolated areas at night and be mindful of local traffic laws when using scooters or bikes.
Pack lightweight, versatile clothing suitable for the destination's climate, and use secure, lockable luggage to protect belongings. Keep essential items like travel documents, medication, and valuables in a carry-on bag for easy access. Use packing organizers or cubes to maximize space and maintain order. Lastly, include a small first aid kit and personal hygiene items for added comfort during travel.
popular airports
Popular airports from Denver, CO to San Diego, CA
Denver
San Diego
The major airport for departures in Denver is Denver International Airport. Find all the information you need to know about services, amenities and connections at Denver International Airport for your trip from Denver to San Diego.
Amenities at airport
Wifi
Shopping
Parking
Dining
ATM
Taxis
Accessibility
WC
Hotel
Shower
Lounge
Lost and Found Office
Car Rentalinformation
Distance to city center
18 km
Car connection
Peña Blvd, Exit 284Wifi
- Free Wi-Fi available throughout the airport.
Shopping
- Shops located in Jeppesen terminal and concourses, including Duty-Free and local brands.
Parking
- Parking available, approximately 4.7€ ($5) per hour, parkade adjacent to terminal.
Dining
- Various restaurants in Jeppesen terminal and concourses, including American and intertiol cuisine.
Taxis
- Available outside the terminal.
Accessibility
- Elevators, ramps
WC
- Available throughout the airport.
Hotel
- Westin Hotel connected to the terminal.
Shower
- Showers available at the Westin Hotel, approximately $20.
Lounge
- Multiple lounges available, including United Club and Delta Sky Club.
Lost and Found Office
- Lost and Found located in Jeppesen terminal, Level 5.
Car Rental
- Car rental services available on airport property, shuttle service to rental car lots.
Public transit options for Denver International Airport
- A Line train, Denver Airport Station, 37 minutes to Union Station
The major airport for arrivals in San Diego is San Diego International Airport. Find all the information you need to know about services, amenities and connections at San Diego International Airport for your journey to San Diego from Denver.
Amenities at airport
WifiShoppingParkingDiningATMTaxisAccessibilityWCHotelShowerLoungeLost and Found OfficeCar Rentalinformation
Distance to city center
4 kmCar connection
I-5, exit Sassafras StWifi
- Free Wi-Fi available throughout the airport.
Shopping
- Shops in terminals 1 and 2, including Duty-Free and Hudson News.
Parking
- Parking available, price varies.
Dining
- Restaurants in terminals 1 and 2, including fast food and sit-down options like The Counter and Phil's BBQ
Taxis
- Available outside the terminal.
Accessibility
- Elevators, ramps
WC
- Available throughout the airport.
Hotel
- Hotels nearby, Sheraton San Diego Hotel & Mari within walking distance.
Shower
- Showers available at the Airspace Lounge, access fee required.
Lounge
- Lounges available, including United Club and Airspace Lounge.
Lost and Found Office
- Lost and Found located in terminal 2 East, baggage claim area.
Car Rental
- Car rental services available at Rental Car Center, free shuttle from terminals
Public transit options for San Diego International Airport
- Bus Route 992, Airport Station, 4.8 km
McClellan-Palomar Airport (CLD)
Amenities at airport
Accessibilityinformation
Accessibility
- The place has an entrance that is wheelchair-accessible
More options for your journey from Denver, CO to San Diego, CA
Here are some other resources that might have the information you need
Most popular flights to and from San Diego, CA and Denver, CO
Most popular flights to San Diego, CA
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