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Journey information
Overview: Seattle-Tacoma International Airport to London Heathrow Airport flight
USA
United Kingdom
Take a flight from Seattle-Tacoma International Airport to London Heathrow Airport and enjoy the approximately 4786 miles (7703 km) long journey. Find schedules and pricing options for a convenient and affordable trip.
There are 5 flights per day. December 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 4786 miles (7703 km) |
Average flight duration 10h 3m |
Flights per day 86 |
Direct flights 5 |
Cheapest month to travel December |
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
Airlines: American Airlines, Virgin Atlantic, Icelandair from Seattle-Tacoma International Airport to London Heathrow AirportFind the best flights between Seattle-Tacoma International Airport to London Heathrow Airport with Omio's travel partners American Airlines, Virgin Atlantic, Icelandair. We can find you the best deals, schedules and tickets when comparing and booking the best trip.
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
American Airlines frequency
17 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.
Entertaiment on board
Virgin Atlantic
About
Virgin Atlantic, established in 1984 by Richard Branson, is a British airline known for its distinctive service and "red flair". It operates a mixed fleet of Airbus and Boeing wide-body aircraft, flying to destinations across North America, the Caribbean, Africa, the Middle East, and Asia. The airline's main hubs are London Heathrow and Manchester, with seasonal services from Edinburgh. Virgin Atlantic offers three cabin classes: Economy, Premium, and Upper Class (business class), with Upper Class featuring fully flat beds and access to exclusive lounges. The airline joined the SkyTeam alliance in 2023 and is jointly owned by Virgin Group and Delta Air Lines.
Luggage & cancellation policy
Luggage included
Economy Light includes only hand luggage (cabin bag up to 10kg)
Additional luggage
Additional checked baggage can be purchased, with fees varying by route and timing of purchase
Cancellation Policy
Refunds depend on ticket type - Economy Light tickets are non-refundable, while flexible fares offer free changes and cancellations
Pregnant on board
Passengers can fly up to the end of 28th week for multiple pregnancies, and end of 36th week for single pregnancies
Unaccompagned minor
Young flyers aged 5-11 can travel alone using our Unaccompanied Minor service. Service must be booked at least 7 days before departure
Amenities on board the airplane
Wifi
Food sold onboard
USB plugs
Accessibility
Virgin Atlantic provides assistance for passengers with reduced mobility, including wheelchair assistance and special assistance throughout the journey.
Pets
Pets are not allowed in the cabin, only recognized service dogs are permitted
Entertaiment on board
Icelandair
About
Icelandair is the flag carrier of Iceland, with roots tracing back to 1937. It operates as part of the Icelandair Group and is headquartered in Hafnarfjörður, Iceland. The airline's business strategy leverages Iceland's unique geographical position midway between North America and Europe, offering transatlantic flights with a convenient stopover option in Iceland. Icelandair serves destinations on both sides of the Atlantic from its main hub at Keflavík International Airport, and also operates domestic flights from Reykjavík Airport. The airline is known for promoting Iceland as a tourist destination and providing a comfortable flying experience with Icelandic hospitality.
Luggage & cancellation policy
Average Duration
12h 10m
Cheapest Price
$346 (€277)
Icelandair frequency
6 a day
Luggage included
One carry-on bag (10kg) and one personal item included in Economy
Additional luggage
Extra bags can be purchased, prices vary by route
Cancellation Policy
24-hour cancellation policy for full refund, after that fees apply based on fare type
Pregnant on board
Up to week 36 of pregnancy. After week 28, medical certificate required
Unaccompagned minor
Available for children 5-17, must be booked at least 48 hours in advance. Service fee applies
Amenities on board the airplane
Wifi
USB plugs
Accessibility
Wheelchair assistance available, must be requested at least 48 hours before departure
Pets
Small pets in cabin, larger ones in hold. Must be booked in advance
Entertaiment on board
FAQs: Seattle-Tacoma International Airport to London Heathrow Airport Flight
Find answers to the most common questions about traveling from Seattle-Tacoma International Airport to London Heathrow Airport 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 London Heathrow Airport, this guide helps you travel smarter and with confidence.
Cheap plane tickets from Seattle-Tacoma International Airport, WA (SEA) to London Heathrow Airport (LHR) can start from as little as $438 (€350) when you book in advance. The average flight ticket price for Seattle-Tacoma International Airport, WA (SEA) to London Heathrow Airport (LHR) is $438 (€350); however, prices vary depending on the time of day and class and they tend to be more expensive on the day.
On average the Seattle-Tacoma International Airport, WA (SEA) to London Heathrow Airport (LHR) flight travel time is 12 h 59 min for the 4775 mile (7702 km) long route, but the duration can vary if you travel on weekends and holidays.
The flight from Seattle-Tacoma International Airport, WA (SEA) to London Heathrow Airport (LHR) leaves at 6: 56PM. Plan your trip with the Journey Planner from Omio.
There are 81 flights a day from Seattle-Tacoma International Airport, WA (SEA) to London Heathrow Airport (LHR) which require at least one change with Icelandair. Schedules can vary on holidays or weekends with fewer flights.
For the journey from Seattle-Tacoma International Airport, WA (SEA) to London Heathrow Airport (LHR) you can take a flight with Icelandair. Be sure to check out all possible airlines that offer services from Seattle-Tacoma International Airport, WA (SEA) to London Heathrow Airport (LHR) on Omio to compare what amenities they may have.
The cheapest month for a flight from Seattle-Tacoma International Airport, WA (SEA) to London Heathrow Airport (LHR) is December.
Yes, you can take a flight between Seattle-Tacoma International Airport, WA (SEA) and London Heathrow Airport (LHR).
Since neither Seattle-Tacoma International Airport, WA (SEA) nor London Heathrow Airport (LHR) are in the Schengen Area, passport requirements depend on the specific immigration rules of USA and United Kingdom. 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 8 h between Seattle-Tacoma International Airport, WA (SEA) and London Heathrow Airport (LHR) all year round.
The best events to attend in London Heathrow Airport (LHR) include:
- Notting Hill Carnival, a colorful celebration of Caribbean culture with parades and music
- London Fashion Week, a major event showcasing the latest trends in fashion
- The Thames Festival, a riverside festival featuring arts, music, and food along the Thames
- New Year's Day Parade, a grand parade featuring marching bands and performers to ring in the new year.
The best holidays to experience in London Heathrow Airport (LHR) include:
- Easter, mild spring weather and blooming flowers
- May Bank Holiday, pleasant temperatures and outdoor activities
- Late Summer Bank Holiday, warm weather perfect for exploring parks and attractions
- Christmas, festive decorations and holiday spirit throughout the city.
The best seasons to visit London Heathrow Airport (LHR) are Spring or Summer. The best weather to explore London Heathrow Airport (LHR) is during May-June or September-October.
For international flights we recommend to arrive 2.5 to 3 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.
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.
popular airports
Popular airports from Seattle-Tacoma International Airport to London Heathrow Airport
Seattle
London
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 London.
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 London is London Heathrow Airport. Find all the information you need to know about services, amenities and connections at London Heathrow Airport for your journey to London from Seattle.
Amenities at airport
WifiShoppingParkingATMTaxisAccessibilityWCShowerLoungeLost and Found Officeinformation
Distance to city center
23 kmCar connection
M4, Junction 4Wifi
- Free Wi-Fi available throughout the airport for up to 4 hours.
Shopping
- Shops are located throughout all terminals, including Harrods and World Duty Free.
Parking
- Short Stay parking available near each terminal, approximately 6.3€ (£5.30) for 30 minutes.
Taxis
- Available outside the terminal.
Accessibility
- Assistance.
WC
- Available throughout the airport, including accessible facilities.
Shower
- Yes
Lounge
- Lounges available in all terminals, including British Airways and Plaza Premium lounges.
Lost and Found Office
- Located at each terminal, contact Heathrow Airport Lost Property.
Public transit options for London Heathrow Airport
- Bus: 105, 111, 140, 285, 423
- Metro: Piccadilly Line
- Train: Heathrow Express, TfL Rail
More options for your journey from Seattle-Tacoma International Airport to London Heathrow Airport
Here are some other resources that might have the information you need
Most popular flights to and from London Heathrow Airport and Seattle-Tacoma International Airport
Most popular flights to London Heathrow Airport
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