2,000+ travel companies
2,000+ travel companies
Scan to get our free app
Use our app to get live travel updates and book mobile tickets for trains, buses, flights, and ferries.
App Store
4.942K ratings
Google Play
4.6136K reviews
Journey information
Overview: Seattle, WA to Denver, CO flight
USAUSA
Flights from Seattle, WA to Denver, CO depart on average 53 times per day, taking around 2h 50m. Cheap flight tickets for this journey start at $31 (€25) if you book in advance.
There are 6 flights per day. The earliest flight runs at 00:05, the last at 23:58. The fastest flight covers the 1019 miles (1641 km) distance in 2h 41m. July 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 1019 miles (1641 km) |
Average flight duration 2h 50m |
Cheapest ticket price $31 (€25) |
Flights per day 53 |
Direct flights 6 |
Fastest flight 2h 41m |
Cheapest month July |
First flight 12:05 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 Seattle, WA to Denver, CO
Showing times and prices for Apr 03
Cheapest price
$66
Average price
$124
Fastest journey
2 h 46 m
Average duration
4 h 41 m
Flights per day
5
Distance
1641 km
Cheap tickets
The best way to find a cheap flight ticket from Seattle, WA to Denver, CO is to book your journey as far in advance as possible and to avoid traveling at rush hour.
The average ticket from Seattle, WA to Denver, CO will cost around $124 if you buy it on the day, but the cheapest tickets can be found for only $66.
Fast flights
Of the 5 flights that leave Seattle, WA for Denver, CO onFri, Apr 03, 5 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
On Fri, Apr 03 the direct flights cover the 1641 km distance in an average of 4 h 41 m but if you time it right, some flights will get you there in just 2 h 46 m .
On Fri, Apr 03 the longest flights will take 12 h 7 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.
9:01 PM2h46Seattle, WA11:47 PMDenver, CO$661One-way0 transfers- 3:05 AM2h51Seattle, WA5:56 AMDenver, CO$941One-way0 transfers
- 8:34 PM2h51Seattle, WA11:25 PMDenver, CO$1201One-way0 transfers
- 3:48 AM12h07Seattle, WA3:55 PMDenver, CO$1471One-way0 transfers
- 10:54 PM2h49Seattle, WA1:43 AMDenver, CO$1911One-way0 transfers
- 9:01 PM2h46Seattle, WA11:47 PMDenver, CO$661One-way0 transfers
- 10:54 PM2h49Seattle, WA1:43 AMDenver, CO$1911One-way0 transfers
- 3:05 AM2h51Seattle, WA5:56 AMDenver, CO$941One-way0 transfers
- 8:34 PM2h51Seattle, WA11:25 PMDenver, CO$1201One-way0 transfers
- 3:48 AM12h07Seattle, WA3:55 PMDenver, CO$1471One-way0 transfers
Travel Information
Compare train, bus, and flight for Seattle, WA to Denver, CO
Omio recommends booking the train as it is the most popular option from Seattle, WA to Denver, CO among Omio's users. If you are prioritising price take the flight with prices starting from $31. For those with little time consider booking a flight which can get you there in 2h 50m. The ticket price range depends on the travel mode: a flight costs an average of $31, and a train costs an average of $241.
Distance: 1019 miles (1641 km)
Compare flight with
| Flight | Most popular Train | Bus |
|---|---|---|
$155 Average price Cheapest | $730 Average price | $266 Average price |
5h 50m Average total duration Fastest 2h 50m Onboard + 3h 0m Additional time* | 52h 1m Average total duration 51h 31m Onboard + 30m Additional time* | 29h 55m Average total duration 29h 25m Onboard + 30m Additional time* |
 Most popular airline |  Most popular train company |  Most popular bus company |
Direct Options | Direct Options | Direct Options |
Live departures
Seattle, WA to Denver, CO flight times
The table below shows live departures for Seattle, WA to Denver, CO flights for tomorrow, Thursday, April 2. You can also manually refresh the results below to see updated flight journeys.
Last updated at
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
| 3:05 AM Seattle, WA | 2h51 | 5:56 AM Denver, CO | 0 transfersDirect | |
| 3:48 AM Seattle, WA | 12h07 | 3:55 PM Denver, CO | 0 transfersDirect | |
| 8:34 PM Seattle, WA | 2h51 | 11:25 PM Denver, CO | 0 transfersDirect | |
| 9:01 PM Seattle, WA | 2h46 | 11:47 PM Denver, CO | 0 transfersDirect | |
| 10:54 PM Seattle, WA | 2h49 | 1:43 AM Denver, CO | 0 transfersDirect |
Find all the dates and times for this journey
Compare prices and tickets Seattle, WA to Denver, CO by train, bus, or flight
Compare train, bus, 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.
Fri
Apr 03
Apr 03
Sat
Apr 04
Apr 04
Sun
Apr 05
Apr 05
Mon
Apr 06
Apr 06
Tue
Apr 07
Apr 07
Wed
Apr 08
Apr 08
Thu
Apr 09
Apr 09
Why should you book Seattle, WA to Denver, CO flights with Omio?
United as well as Frontier Airlines or Alaska Airlines offer flights services from Seattle, WA to Denver, CO.
Omio is an official ticket reseller for all your travel options from Seattle, WA to Denver, CO.
Why book with Omio vs United?
- Compare with other providers: On Omio, you can not only buy tickets for United, but also compare tickets for the likes of Frontier Airlines or Alaska Airlines to find the best option for your trip from Seattle, WA to Denver, CO.
- 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 United with all available travel options, which are train, bus and flight to ensure you get the best deal for traveling from Seattle, WA to Denver, CO.
Why book with Omio over Kayak, Skyscanner or Trip?
- Compare with other providers: On Omio, you can also compare tickets for the likes of Frontier Airlines or Alaska Airlines to find the best option for your trip from Seattle, WA to Denver, CO.
- Multiple modes of transport: Omio allows you to compare travel options including train, bus and flight to find the ideal travel option from Seattle, WA to Denver, CO.
Airlines: United, Frontier Airlines, Alaska Airlines from Seattle, WA to Denver, COFind the best flights between Seattle, WA to Denver, CO with Omio's travel partners United, Frontier Airlines, Alaska Airlines from $31 (€25). 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 43m
Cheapest Price
$91 (€74)
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.
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 41m
Cheapest Price
$183 (€149)
Alaska Airlines frequency
9 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 46m
Cheapest Price
$31 (€25)
Frontier Airlines frequency
7 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: Seattle, WA to Denver, CO Flight
Find answers to the most common questions about traveling from Seattle, WA to Denver, CO 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 Denver, CO, this guide helps you travel smarter and with confidence.
Cheap plane tickets from Seattle, WA to Denver, CO can start from as little as $31 (€25) when you book in advance. The average flight ticket price for Seattle, WA to Denver, CO is $155 (€126) ; 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 Seattle, WA to Denver, CO is 2h 41m to travel the 1019 miles (1641 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 Seattle, WA to Denver, CO leaves at 12:05 AM. Plan your trip with the Journey Planner from Omio.
The latest flight from Seattle, WA to Denver, CO leaves at 11:58 PM.
Yes, there are 6 direct flights a day from Seattle, WA to Denver, CO with United, Frontier Airlines, Alaska Airlines. Schedules can vary on holidays or weekends with fewer direct flights.
When taking a flight from Seattle, WA to Denver, CO, you can count on United, Frontier Airlines, Alaska Airlines for the best way to get you to Denver, CO. You can also check all possible airlines who offer a service between Seattle, WA and Denver, CO and compare the amenities they offer before buying a plane ticket.
Flights from Seattle, WA to Denver, CO generally leave from Seattle-Tacoma International Airport and arrive in Denver International Airport.Seattle-Tacoma International Airport is away from Seattle, WA city centre and Denver International Airport is 11 miles (18 km) from Denver, CO city centre.
The cheapest month for a flight from Seattle, WA to Denver, CO is July.
It's helpful to compare your options as there are 3 ways to travel between Seattle, WA and Denver, CO including taking a train, bus, and flight.
Since neither Seattle, WA nor Denver, CO 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 Seattle, WA and Denver, CO all year round.
The best events to attend in Denver, CO include:
- Denver Arts Festival, a vibrant celebration of local artists and their work featuring exhibitions, live music, and food
- Great American Beer Festival, the largest beer festival in the U.S. showcasing thousands of craft beers from across the country
- Denver Film Festival, an annual event highlighting independent films and filmmakers with screenings, panels, and special events.
Some of the most interesting sights to explore in Denver, CO are:
- Red Rocks Amphitheatre, a renowned open-air concert venue set amidst stunning natural rock formations
- Denver Art Museum, featuring an extensive collection of Native American art and contemporary works
- Denver Botanic Gardens, offering diverse plant displays and themed gardens
- Union Station, a historic transportation hub with shops, dining, and events
- Denver Museum of Nature & Science, showcasing exhibits on natural history, space, and anthropology.
The best holidays to experience in Denver, CO include:
- Memorial Day, the unofficial start of summer with vibrant outdoor activities and events
- Independence Day, spectacular fireworks and lively celebrations throughout the city
- Labor Day, pleasant weather perfect for enjoying Denver's parks and festivals.
The best things to do in Denver, CO include:
- Coors Field, home to the Colorado Rockies, offering baseball games and tours in a scenic downtown setting
- Larimer Square, a vibrant historic district with shopping, dining, and nightlife
- City Park, a large urban park with trails, lakes, and views of downtown Denver and the mountains
- Denver Zoo, featuring a wide variety of animals and interactive exhibits
- Cherry Creek Shopping Center, a premier retail destination with luxury brands and dining options.
The best season to visit Denver, CO is Spring or Fall. The best weather to explore Denver, CO is during May-September.
We recommend using the train as it is the most popular way to get from Seattle, WA to Denver, CO 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 Denver, CO, travelers should be aware of pickpocketing and petty theft, especially in crowded areas like downtown and tourist attractions. Common scams include overpriced rides from unofficial taxi services and fraudulent ticket sellers near popular venues. It's advisable to use licensed transportation, stay vigilant in busy spots, and avoid sharing personal information with strangers to ensure safety.
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 Seattle, WA to Denver, CO
Seattle
Denver
The major airport for departures in Seattle is Seattle-Tacoma International Airport. Find all the information you need to know about services, amenities and connections at Seattle-Tacoma International Airport for your trip from Seattle to Denver.
Amenities at airport
Wifi
Shopping
Parking
Dining
ATM
Taxis
Accessibility
WC
Hotel
Shower
Lounge
Lost and Found Office
Car Rentalinformation
Car connection
I-5, Exit 154BWifi
- Free Wi-Fi available throughout the airport.
Shopping
- Shops include duty-free, Hudson News, and local specialty stores, located in the main terminal and concourses.
Parking
- Parking available in the General Parking area, approximately 4.7€ ($5) per hour.
Dining
- Restaurants are available, including fast food and sit-down options like McDold's and Beecher's Handmade Cheese.
Taxis
- Available outside the terminal.
Accessibility
- Elevators, ramps
WC
- Available throughout the airport, near gates and in main terminal areas.
Hotel
- Hotels within walking distance, such as the Seattle Airport Marriott and Hilton Seattle Airport.
Shower
- Showers are available at The Club at SEA lounges, typically included in lounge access fees.
Lounge
- Lounges include The Club at SEA and Delta Sky Club, offering amenities like scks and showers.
Lost and Found Office
- Lost and Found located on the baggage claim level, near carousel 13.
Car Rental
- Car rental services are available at the Rental Car Facility, accessible via a free shuttle from the terminal.
Public transit options for Seattle-Tacoma International Airport
- Link Light Rail, SeaTac/Airport Station, 40 minutes
The major airport for arrivals 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 journey to Denver from Seattle.
Amenities at airport
WifiShoppingParkingDiningATMTaxisAccessibilityWCHotelShowerLoungeLost and Found OfficeCar Rentalinformation
Distance to city center
18 kmCar 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
More options for your journey from Seattle, WA to Denver, CO
Here are some other resources that might have the information you need
Most popular flights to and from Denver, CO and Seattle, WA
The Omio App Makes Travel Planning Easy
We’ll get you where you want to go. From live train updates to mobile tickets, our innovative app is the ideal way to plan and keep track of your travel.
