Flights from Seattle to London Starting at NZD 372

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • Round-trip
  • One way

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

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  • 23 30

  • Apr

    30 6
  • 6 13
  • 13 20
  • 20 27

  • May

    27 4
  • 4 11
  • 11 18
  • 18 25

  • Jun

    25 1
  • 1 8
  • 8 15
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Airlines Flying from Seattle to London

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.
Iberia logo Iberia Virgin Atlantic logo Virgin Atlantic Icelandair logo Icelandair

FAQ

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

    Airlines adjust prices for flights from Seattle to London based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that 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 NZD 1,688.

  • How long does it take to fly from Seattle (SEA) to London (LON) and what is the distance?

    It takes around 9 hours 30 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 Heathrow Airport to downtown is about 23 km. It takes about 40 minutes by taxi.
    • The distance from Gatwick Airport to downtown is about 39 km. It takes about 50 minutes by taxi.
    • The distance from London Luton Airport to downtown is about 44 km. It takes about 1 hour by taxi.

  • What are the most popular airlines that fly from Seattle (SEA) to London (LON)?

    Airlines with flights from Seattle (SEA) to London (LON): Iberia, Alaska Airlines, Delta Air Lines, KLM, Aer Lingus, Aeromexico, American Airlines, Virgin Atlantic, Finnair, Air France and British Airways.

How to find a cheap flight from Seattle to London

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Seattle to London. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Information from Seattle to London

Cheapest one-way flight price NZD 372
Cheapest round-trip ticket price NZD 1,045
Off-season for travel February
Peak season for travel December
Flight distance 7,711.56 km
Average flight time 9 hours 30 minutes
Popular airline American Airlines

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