Seattle-Tacoma International Airport SEA to London LON flight with Icelandair

Sat, Nov 22
+ Add return
Icelandair
Air Canada
British Airways
Vueling Airlines
easyJet
1,000+ travel companies
Icelandair
Air Canada
British Airways
Vueling Airlines
easyJet
1,000+ travel companies
QR-Code
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
rate4.9
42K ratings
Google Play
rate4.6
136K reviews

Journey information

Overview: Seattle-Tacoma International Airport to London flight

USAUSA
United KingdomUnited Kingdom
Icon of flight

Take a flight from Seattle-Tacoma International Airport to London and enjoy the approximately 4792 miles (7713 km) long journey. Find schedules and pricing options for a convenient and affordable trip.

There are 1 flights per day.

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
4792 miles (7713 km)
Average flight duration
11h 9m
Flights per day
44
Direct flights
1
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: Icelandair, Air Canada, British Airways from Seattle-Tacoma International Airport to LondonFind the best flights between Seattle-Tacoma International Airport to London with Omio's travel partners Icelandair, Air Canada, British Airways. We can find you the best deals, schedules and tickets when comparing and booking the best trip.

British Airways

About
British Airways (BA) is the United Kingdom’s flag carrier airline with headquarters in London near its main hub at London Heathrow Airport (LHR). BA is the second largest UK-based airline in terms of fleet size and number of passengers carried. Known as a full-service global airline, British Airways offers year-round low fares to destinations worldwide and flies to and from centrally-located airports. Its extensive global route network includes more than 170 destinations in nearly 80 countries throughout Europe, North America, South America, Asia, Africa and Australia. syn p British Airways (BA) is the flag carrier airline of the United Kingdom with its headquarters in London near its main hub at London Heathrow Airport (LHR). Known as a full-service global airline, BA offers low fares year-round to destinations around the globe and flies to and from centrally-located airports. Its extensive global route network includes more than 170 destinations in nearly 80 countries throughout Europe, North America, South America, Asia, Africa and Australia. BA is also the second largest airline based in the UK in terms of its fleet size and number of passengers carried.
Luggage & cancellation policy
Average Duration
9h 15m
Cheapest Price
$1180 (€962)
British Airways frequency
4 a day
Luggage included
Economy Basic includes 1 cabin bag (max 23kg, 56x45x25cm) plus 1 personal item (40x30x15cm)
Additional luggage
Additional checked bags can be purchased, with prices varying by route and fare class
Cancellation Policy
Cancellation policy depends on ticket type - Basic tickets non-refundable, Flexible tickets can be cancelled for a full refund
Pregnant on board
Travel permitted until end of 36th week for single pregnancies, end of 32nd week for multiple pregnancies. Medical clearance required after 28th weeks
Unaccompagned minor
Young flyers aged 5-11 can travel alone using British Airways' Skyflyer Solo service. Service must be booked in advance and is available on most routes
Amenities on board the airplane
Wifi
Food sold onboard
USB plugs
Accessibility
British Airways provides assistance for passengers with reduced mobility, including wheelchair assistance and special assistance through airports.
Pets
Pets travel in the hold except assistance dogs. Advance booking required. Only cats and dogs accepted on most routes
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 5m
Cheapest Price
$776 (€632)
Icelandair frequency
26 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

Air Canada

About
Air Canada is Canada's largest airline and flag carrier, headquartered in Saint-Laurent, Quebec. Founded in 1937 as Trans-Canada Air Lines, it was renamed Air Canada in 1964 and fully privatized in 1989. As a founding member of Star Alliance, Air Canada provides scheduled passenger and cargo services to over 220 destinations across six continents. The airline operates a diverse fleet, including Airbus A320 family aircraft, Boeing 737 MAX, Boeing 777, and Boeing 787 Dreamliner for both short and long-haul routes. Air Canada also offers leisure travel packages through its subsidiary, Air Canada Vacations.
Luggage & cancellation policy
Air Canada frequency
3 a day
Luggage included
Economy Basic includes personal item (under seat), Economy Standard/Flex/Latitude/Premium Economy/Business include carry-on bag + personal item
Additional luggage
Checked baggage fees vary by route and fare type, starting at $30-$70 for first bag
Cancellation Policy
Refundable fares allow full refund, non-refundable fares may receive future travel credit minus cancellation fee.
Pregnant on board
Pregnant passengers can travel up to 36 weeks without medical certificate. After 36 weeks, medical clearance required
Unaccompagned minor
Unaccompanied Minor Service available for children aged 8-11 (mandatory) and 12-17 (optional). Service fee applies.
Amenities on board the airplane
Wifi
USB plugs
Accessibility
Air Canada provides wheelchair assistance and special services for passengers with disabilities, including mobility aids and service animals.
Pets
Pets allowed in cabin and cargo hold, restrictions apply based on aircraft type and route
Entertaiment on board

FAQs: Seattle-Tacoma International Airport to London Flight

Find answers to the most common questions about traveling from Seattle-Tacoma International Airport to London 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, this guide helps you travel smarter and with confidence.

FAQs
There are 125 flights a day from Seattle-Tacoma International Airport, WA (SEA) to London which require at least one change with Icelandair or British Airways. Schedules can vary on holidays or weekends with fewer flights.
When taking a flight from Seattle-Tacoma International Airport, WA (SEA) to London, you can count on Icelandair or British Airways for the best way to get you to London. You can also check all possible airlines who offer a service from Seattle-Tacoma International Airport, WA (SEA) to London and compare the amenities they offer before buying a plane ticket.
Since neither Seattle-Tacoma International Airport, WA (SEA) nor London 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 all year round.
The best events to attend in London include:
  • Notting Hill Carnival, a colorful celebration of Caribbean culture with parades and music
  • London Fashion Week, a showcase of the latest trends from top designers
  • The Thames Festival, a riverside festival featuring arts, music, and food
  • New Year's Eve Fireworks, a spectacular fireworks display over the River Thames to ring in the new year.
The best holidays to experience in London include:
  • Easter, mild spring weather and blooming flowers
  • May Bank Holiday, pleasant temperatures and outdoor activities
  • August Bank Holiday, summer festivities and events
  • Christmas, festive decorations and holiday markets.
The best seasons to visit London are Spring or Summer. The best weather to explore London 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.
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

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
WifiWifi
ShoppingShopping
ParkingParking
DiningDining
ATMATM
TaxisTaxis
AccessibilityAccessibility
WCWC
HotelHotel
ShowerShower
LoungeLounge
Lost and Found OfficeLost and Found Office
Car RentalCar Rental
information
carConnection
Car connection
I-5, Exit 154B
Wifi
Wifi
  • Free Wi-Fi available throughout the airport.
Shopping
Shopping
  • Shops include duty-free, Hudson News, and local specialty stores, located in the main terminal and concourses.
Parking
Parking
  • Parking available in the General Parking area, approximately 4.7€ ($5) per hour.
Dining
Dining
  • Restaurants are available, including fast food and sit-down options like McDold's and Beecher's Handmade Cheese.
Taxis
Taxis
  • Available outside the terminal.
Accessibility
Accessibility
  • Elevators, ramps
WC
WC
  • Available throughout the airport, near gates and in main terminal areas.
Hotel
Hotel
  • Hotels within walking distance, such as the Seattle Airport Marriott and Hilton Seattle Airport.
Shower
Shower
  • Showers are available at The Club at SEA lounges, typically included in lounge access fees.
Lounge
Lounge
  • Lounges include The Club at SEA and Delta Sky Club, offering amenities like scks and showers.
Lost and Found Office
Lost and Found Office
  • Lost and Found located on the baggage claim level, near carousel 13.
Car Rental
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

More options for your journey from Seattle-Tacoma International Airport to London

Here are some other resources that might have the information you need

Most popular flights to and from London and Seattle-Tacoma International Airport

HomeFlightsFlights in United KingdomFlight Schedules to LondonSeattle-Tacoma International Airport to London Flights

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.

ios-badge
android-badge
Hand With Phone