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Flights Seattle — London

Seattle
SEA
London
LON

Cheap flights Seattle — London

Below you can see the best deals on flights Seattle — London for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 18 July, from AED 770.

Top 10 cheap flights Seattle — London

Direct flights Seattle — London

Direct flight options for Seattle — London with no stopovers on upcoming dates. A direct flight is faster and more convenient — especially when travelling with luggage or children.

The fastest direct flight takes around 1 h 26 min.

Top 10 direct flights Seattle — London

About the Seattle — London flight

On this page, you can find and purchase flights from Seattle to London. The 7,723 km route is served regularly, with approximately 27 weekly flights. To plan your trip to the terminal, check out the information on how to get to Seattle airport in advance.

Flights on this route are operated by Delta Air Lines, British Airways, and Virgin Atlantic. Ticket prices are dynamic and seasonal, so we recommend using the low-price calendar and exploring options on how to get from London airports to the city center.

Flight schedule Seattle — London

The table shows direct flights Seattle → London on the selected date. The flight takes approximately 9 h 15 min. Regular flights are operated by British Airways, Alaska Airlines, Delta and Virgin Atlantic. Departures from Seattle-Tacoma International Airport and Paine Field airports, arrivals at Heathrow Airport, London Gatwick Airport and Stansted Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

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Flight ticket prices by day: Seattle — London

Below is a calendar of the lowest flight ticket prices for Seattle — London by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from AED 665 in r, and the most expensive are around AED 2,055 in r. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Seattle → London, average one-way price

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
JanAED 2,079lowMayAED 2,433mediumSepAED 2,323medium
FebAED 1,947lowJunAED 2,810highOctAED 1,947low
MarAED 2,190mediumJulAED 3,053highNovAED 1,995low
AprAED 2,323mediumAugAED 2,677highDecAED 2,920high

Some values are estimated based on seasonality.

When to fly

July is the warmest month in London, with average temperatures reaching up to 22.2°C, while January remains the coldest. October is considered the rainiest period of the year, so it's worth preparing for the changeable British weather in advance.

The most budget-friendly tickets are available for travel in January, with prices starting AED 665. Prices peak in June, when the minimum fare increases to AED 2,055, which is significantly higher than the annual average for this route.

The optimal choice for a balance of price and weather is September, when flights start AED 671. We recommend avoiding booking for June to prevent overpaying for tickets during the peak seasonal demand.

Temperature · London

Dry and wet days · London

Wind speed and direction · London

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How to get the best deal on a Seattle — London ticket

  • Use the low-price calendar on this page to compare offers from British Airways, Delta, and other carriers in real-time.
  • For this transatlantic route, mid-week departures—on Tuesday or Wednesday—are often cheaper than flights on Friday or Sunday.
  • Keep in mind that direct flights save about 3–5 hours of travel time, but connecting options from Aer Lingus can reduce the ticket price by AED 186.
  • Check baggage and carry-on allowances in advance, as rules can vary significantly on intercontinental flights operated by Alaska Airlines and Virgin Atlantic.

Airlines

There are 5 airlines operating on the Seattle—London route, with British Airways, Delta Air Lines, and Virgin Atlantic being the primary carriers. Most flights are direct, offering a total of about 27 departures per week. A detailed daily schedule and available connection options are presented in the interactive list below.

  • British Airways
    British AirwaysBA
    9x/week
    WebsiteFleet: 29243M pax/year
    • Direct flight SEA → LHR9x/week
      Duration
      9h 15m
      Days
      MTWTFSS
    34.1%Open →
  • Alaska Airlines
    Alaska AirlinesAS
    5x/week
    WebsiteFleet: 31545M pax/year
    • Direct flight SEA → LHR5x/week
      Duration
      1h 30m
      Days
      MTWTFSS
    19.5%Open →
  • Delta
    DeltaDL
    5x/week
    WebsiteFleet: 986190M pax/year
    • Direct flight SEA → LHR5x/week
      Duration
      1h 26m
      Days
      MTWTFSS
    18.3%Open →
  • Virgin Atlantic
    Virgin AtlanticVS
    5x/week
    WebsiteFleet: 415.3M pax/year
    • Direct flight SEA → LHR5x/week
    17.1%Open →
  • Aer Lingus
    Aer LingusEI
    3x/week
    WebsiteFleet: 5710.7M pax/year
    • Direct flight SEA → LHR3x/week
      Duration
      9h 16m
      Days
      MTWTFSS
    11.0%Open →

Cities and airports on the Seattle — London route

Flights Seattle — London depart from Seattle-Tacoma International Airport and Paine Field and arrive at Heathrow Airport, London Gatwick Airport, Stansted Airport and London Luton Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Seattle

SEA
United States
About the cityHow to get thereWeatherAll about the country United States
Arrival

London

LON
United Kingdom
About the cityHow to get thereWeatherAll about the country United Kingdom
Departure airports
Arrival airports

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Frequently asked questions about the Seattle — London flight

How long does the flight from Seattle to London take?

The average direct flight time for the 7,723 km distance is about 9–10 hours. If you choose connecting routes, the total travel time can increase to 13–15 hours.

Which airlines fly on this route?

Regular service is provided by British Airways, Delta Air Lines, Virgin Atlantic, Aer Lingus, and Alaska Airlines.

Are there direct flights from Seattle to London?

Yes, direct flights from Seattle International Airport to London operate regularly. This is the most convenient option for those who want to avoid long layovers.

When is the best time to buy tickets to save money?

The lowest prices are usually found for flights in January and November. You can see the latest deals and price dynamics by month in the charts on this page.

Which London airport do flights arrive at?

Most transatlantic flights from Seattle arrive at London's major airports—Heathrow and Gatwick.

Where else you can fly from Seattle

Los AngelesAnchorageVancouverSan FranciscoPhoenixSan DiegoSan JoseSpokanePortlandSanta AnaNew York CityChicagoWashington, D.C.PhiladelphiaSeoulCincinnatiOklahoma CityAmsterdamRomeHelsinkiBeijing

Where else you can fly from London

New York CityAmsterdamMadridBarcelonaDublinParisFrankfurt am MainMilanPalmaMalagaEdinburghIstanbulGenevaGlasgowBelfastLisbonFaroZurichNiceRomeLos AngelesCopenhagenAthensAlicanteBerlinSan FranciscoDubaiBostonIbizaTorontoAntalyaMunichChicagoDohaBristolStockholmOsloViennaDusseldorfCardiff
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