Seattle to London Flights

Seattle to London Flight Info

Peak season for travel

March
US$299

Off-season for travel

December
US$305

Cheapest return ticket price

US$615
Seattle(SEA) ⇒ London(LGW)

Cheapest direct flight price

US$593
Seattle(SEA) ⇒ London(LHR)

Frequently Asked Questions

  • When are flight tickets from Seattle (SEA) to London (LON) the cheapest?

    Airlines adjust prices for flights from Seattle to London based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much do flights from Seattle (SEA) to London (LON) cost?

    According to Trip.com's data, the lowest price is around US$1,212.
  • How long does it take to fly from Seattle (SEA) to London (LON)?

    It takes about 9 hours 22 minutes to fly from Seattle (SEA) to London (LON).
  • What is the transportation method from the main airport to downtown in London?

    • The distance from London Heathrow Airport to downtown is about 23km, by taxi about 40 minutes.
    • The distance from Stansted Airport to downtown is about 48km, by taxi about 1 hour.
    • The distance from Gatwick Airport to downtown is about 40km, by taxi about 1 hour.
  • What time does the latest flight from Seattle to London depart?

    The latest flight departs from Seattle (SEA) at 19:20 and arrives in London (LHR) at 12:40.
  • What are the most popular airlines that fly from Seattle (SEA) to London (LON)?

  • What's the most popular airline for non-stop flights from Seattle (SEA) to London (LON)?

    British Airways operates 152 non-stop flights from Seattle (SEA) to London (LON).
  • How many airports are there in London (LON)?

  • What are some travel guidelines for London during the COVID19 pandemic?

    Entry restrictions and flight schedule changes and cancellations are frequently updated and subject to change. If you plan to travel to London, please obtain the most updated information from the airline you plan to book your travels with. You can also refer to COVID19 Country/Region Entry Restrictions for more information.
  • Which airlines offer free date changes for flights to this city during the COVID19 pandemic?

    There are no airlines with flights to this city that provide this service. Please use this information as a reference only and confirm with the airline prior to booking.

Seattle (SEA) to London (LON) Flight Schedule

Flight info.
Departure
Arrival
RouteWeekly Schedule
Aer Lingus

13:30

SEA

07:10

LHR

Seattle to LondonS---TFSSearch
Norwegian Air UK ltd

13:45

SEA

07:00

LGW

Seattle to London--T-T-SSearch
British Airways

13:50

SEA

07:10

LHR

Seattle to London----T--Search
Virgin Atlantic

15:15

SEA

08:40

LHR

Seattle to London------SSearch
Aeromexico

15:20

SEA

08:45

LHR

Seattle to London----T--Search
Virgin Atlantic

17:15

SEA

11:10

LHR

Seattle to London---W-F-Search
Jet Airways

17:55

SEA

11:15

LHR

Seattle to LondonSMTWTFSSearch
Finnair

18:25

SEA

11:50

LHR

Seattle to LondonS-T-T-SSearch
British Airways

19:20

SEA

12:40

LHR

Seattle to LondonS-T-T-SSearch
Air France

19:55

SEA

13:20

LHR

Seattle to London-MT----Search
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  • Plan Your Trip from Seattle (SEA) to London (LON)

    London attracts thousands of visitors every year for both business and pleasure. Whether you’re taking a last-minute break or a much needed getaway, flights from Seattle to London on Trip.com can help you get there with ease. With Trip.com, you can browse popular airlines with flights to London, check the best season to visit, and preview London attractions before you arrive. With flight deals and exciting attractions waiting for you to explore in London, the best time to book flights from Seattle to London is now! Planning a trip from Seattle to London is easy when you use Trip.com to help you make travel arrangements. Whether you are flying one-way, non-stop, or round-trip, you will find just the flight you need with us. If you want to lock in a great deal for your flights, go for a round-trip flight, if you need flexibility with your itinerary, book a one-way flight to London. With Trip.com, you can search for available flights and hotel rooms, and then make your booking quickly and easily online and on the go. Pack your travel accessories, make a must-see bucket list, and book your flight to London on Trip.com today!

  • A Trip to Remember (SEA—LON)

    Make your journey from Seattle (SEA) to London (LON) a trip to remember by using Trip.com to view London attractions before you arrive. Once you know what to do in London, you can reserve and book in advance for the best travel experience possible. Planning ahead is the most effective way to ensure your whole travel experience goes smoothly. Whether you need help choosing the perfect restaurant, discovering the best places to try local flavors, or finding the most stunning views in town, Trip.com is with you every step of the way for your trip to London.