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LHR to SEA

London to Seattle Flights

Compare fares, departure times, stops and baggage details for this route, then open the full search when you are ready to check current availability and complete booking.

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Lowest fare₹75,177Icelandair
Fastest9h 55mgate to gate
Options found216flights on this route
Find your flight LHR SEA

Available Flights & Fares

Compare fares, timings and baggage. Pick the flight that suits your trip.

Prices in INR
216 flight options

Fares are checked again before payment.

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Icelandair
Icelandair
FI-451
12:15
2026-11-14
London (LHR)United Kingdom flagHeathrow
12H :45 M
1 Stop
KEF · 1h 30m Reykjavik (KEF), Iceland
17:00
2026-11-14
SEATTLE (SEA)United States flagSeattle/tacoma International
Icelandair
Icelandair
FI-455
20:35
2026-11-14
London (LHR)United Kingdom flagHeathrow
28H :25 M
1 Stop
KEF · 17h 10m Reykjavik (KEF), Iceland
17:00
2026-11-15
SEATTLE (SEA)United States flagSeattle/tacoma International
Turkish Airlines
Turkish Airlines
TK-1930
06:30
2026-11-14
London (LGW)United Kingdom flagGatwick
18H :40 M
1 Stop
IST · 2h 10m Istanbul (IST), Turkey
17:10
2026-11-14
SEATTLE (SEA)United States flagSeattle/tacoma International
Turkish Airlines
Turkish Airlines
TK-1982
10:05
2026-11-14
London (LGW)United Kingdom flagGatwick
39H :05 M
1 Stop
IST · 22h 35m Istanbul (IST), Turkey
17:10
2026-11-15
SEATTLE (SEA)United States flagSeattle/tacoma International
Turkish Airlines
Turkish Airlines
TK-1998
17:25
2026-11-14
London (LGW)United Kingdom flagGatwick
31H :45 M
1 Stop
IST · 15h 20m Istanbul (IST), Turkey
17:10
2026-11-15
SEATTLE (SEA)United States flagSeattle/tacoma International
Turkish Airlines
Turkish Airlines
TK-1988
06:25
2026-11-14
London (LHR)United Kingdom flagHeathrow
18H :45 M
1 Stop
IST · 2h 10m Istanbul (IST), Turkey
17:10
2026-11-14
SEATTLE (SEA)United States flagSeattle/tacoma International
Turkish Airlines
Turkish Airlines
TK-1990
15:20
2026-11-14
London (LHR)United Kingdom flagHeathrow
33H :50 M
1 Stop
IST · 17h 15m Istanbul (IST), Turkey
17:10
2026-11-15
SEATTLE (SEA)United States flagSeattle/tacoma International
Turkish Airlines
Turkish Airlines
TK-1934
16:00
2026-11-14
London (LHR)United Kingdom flagHeathrow
33H :10 M
1 Stop
IST · 16h 35m Istanbul (IST), Turkey
17:10
2026-11-15
SEATTLE (SEA)United States flagSeattle/tacoma International
Turkish Airlines
Turkish Airlines
TK-1986
16:30
2026-11-14
London (LHR)United Kingdom flagHeathrow
32H :40 M
1 Stop
IST · 16h 15m Istanbul (IST), Turkey
17:10
2026-11-15
SEATTLE (SEA)United States flagSeattle/tacoma International
Turkish Airlines
Turkish Airlines
TK-1972
17:55
2026-11-14
London (LHR)United Kingdom flagHeathrow
31H :15 M
1 Stop
IST · 14h 50m Istanbul (IST), Turkey
17:10
2026-11-15
SEATTLE (SEA)United States flagSeattle/tacoma International
Turkish Airlines
Turkish Airlines
TK-1984
22:40
2026-11-14
London (LHR)United Kingdom flagHeathrow
26H :30 M
1 Stop
IST · 10h 05m Istanbul (IST), Turkey
17:10
2026-11-15
SEATTLE (SEA)United States flagSeattle/tacoma International
Turkish Airlines
Turkish Airlines
TK-1980
11:20
2026-11-14
London (LHR)United Kingdom flagHeathrow
37H :50 M
1 Stop
IST · 21h 20m Istanbul (IST), Turkey
17:10
2026-11-15
SEATTLE (SEA)United States flagSeattle/tacoma International
British Airways
British Airways
BA-53
09:25
2026-11-14
London (LHR)United Kingdom flagHeathrow
10H :00 M
Non Stop
11:25
2026-11-14
SEATTLE (SEA)United States flagSeattle/tacoma International
British Airways
British Airways
BA-49
14:55
2026-11-14
London (LHR)United Kingdom flagHeathrow
9H :55 M
Non Stop
16:50
2026-11-14
SEATTLE (SEA)United States flagSeattle/tacoma International
United Airlines
United Airlines
UA-9924
06:50
2026-11-14
London (LHR)United Kingdom flagHeathrow
20H :13 M
2 Stops
BRU · 1h 20m Brussels (BRU), Belgium
ORD · 4h 05m Chicago (ORD), United States
19:03
2026-11-14
SEATTLE (SEA)United States flagSeattle/tacoma International
United Airlines
United Airlines
UA-9924
06:50
2026-11-14
London (LHR)United Kingdom flagHeathrow
23H :21 M
2 Stops
BRU · 2h 25m Brussels (BRU), Belgium
EWR · 5h 22m New York (EWR), United States
22:11
2026-11-14
SEATTLE (SEA)United States flagSeattle/tacoma International
United Airlines
United Airlines
UA-9924
06:50
2026-11-14
London (LHR)United Kingdom flagHeathrow
24H :17 M
2 Stops
BRU · 1h 20m Brussels (BRU), Belgium
ORD · 8h 10m Chicago (ORD), United States
23:07
2026-11-14
SEATTLE (SEA)United States flagSeattle/tacoma International
Finnair
Finnair
AY-5451
09:25
2026-11-14
London (LHR)United Kingdom flagHeathrow
10H :00 M
Non Stop
11:25
2026-11-14
SEATTLE (SEA)United States flagSeattle/tacoma International
Finnair
Finnair
AY-5449
14:55
2026-11-14
London (LHR)United Kingdom flagHeathrow
9H :55 M
Non Stop
16:50
2026-11-14
SEATTLE (SEA)United States flagSeattle/tacoma International
Klm Royal Dutch
Klm Royal Dutch
KL-1000
06:30
2026-11-14
London (LHR)United Kingdom flagHeathrow
13H :17 M
1 Stop
AMS · 1h 15m Amsterdam (AMS), Netherlands
11:47
2026-11-14
SEATTLE (SEA)United States flagSeattle/tacoma International
British Airways
British Airways
BA-1504
08:20
2026-11-14
London (LHR)United Kingdom flagHeathrow
16H :34 M
1 Stop
DFW · 1h 50m Dallas (DFW), United States
16:54
2026-11-14
SEATTLE (SEA)United States flagSeattle/tacoma International
British Airways
British Airways
BA-1504
08:20
2026-11-14
London (LHR)United Kingdom flagHeathrow
19H :37 M
1 Stop
DFW · 4h 53m Dallas (DFW), United States
19:57
2026-11-14
SEATTLE (SEA)United States flagSeattle/tacoma International

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British Airways
British Airways
BA-1590
10:05
2026-11-14
London (LHR)United Kingdom flagHeathrow
17H :52 M
1 Stop
DFW · 3h 03m Dallas (DFW), United States
19:57
2026-11-14
SEATTLE (SEA)United States flagSeattle/tacoma International
British Airways
British Airways
BA-1590
10:05
2026-11-14
London (LHR)United Kingdom flagHeathrow
20H :06 M
1 Stop
DFW · 5h 15m Dallas (DFW), United States
22:11
2026-11-14
SEATTLE (SEA)United States flagSeattle/tacoma International
British Airways
British Airways
BA-1588
10:35
2026-11-14
London (LHR)United Kingdom flagHeathrow
19H :24 M
1 Stop
PHL · 4h 55m Philadelphia (PHL), United States
21:59
2026-11-14
SEATTLE (SEA)United States flagSeattle/tacoma International
British Airways
British Airways
BA-295
11:00
2026-11-14
London (LHR)United Kingdom flagHeathrow
17H :19 M
1 Stop
ORD · 3h 39m Chicago (ORD), United States
20:19
2026-11-14
SEATTLE (SEA)United States flagSeattle/tacoma International

Up to 120 of 216 options on this route. Open the full search to see them all with every filter.

No flights match the selected filters. Clear filters or open full search.

Airfare Highlights

From flights departing on Sat, 14 Nov 2026.

Lowest fare ₹75,177 Icelandair 12:15
Earliest departure ₹121,450 Swiss 06:00
Shortest duration ₹120,266 British Airways 14:55
Night 00:00-05:59 No option Open full search for more
Morning 06:00-11:59 ₹103,226 Turkish Airlines at 06:30
Afternoon 12:00-17:59 ₹75,177 Icelandair at 12:15
Evening 18:00-23:59 ₹91,789 Icelandair at 20:35

Departure & Arrival Airport Details

London (LHR)

Heathrow

United Kingdom

GMT 0

Latitude: 51.4706

Longitude: -0.461941

Seattle (SEA)

Seattle/tacoma International

United States

GMT -8

Latitude: 47.449001

Longitude: -122.308998

Distance: London (LHR), United Kingdom to Seattle (SEA), United States - 7,702.08 km
Flights shown for 14 Nov 2026. View all flights opens the complete search result.
Route forecast

Weather in London and Seattle

Live forecast for both cities, 07 Nov to 10 Nov.

Departure city

London

Sat, 14 Nov travel date
5°CClear skyLow -1°
90% humidity 3 km/h wind
  • Wed13° / 9°
  • Thu11° / 8°
  • Fri7° / 3°
Arrival city

Seattle

Sat, 14 Nov travel date
13°CRain expectedLow 10°
88% humidity 23 km/h wind 12.8 mm rain
  • Wed13° / 11°
  • Thu17° / 11°
  • Fri15° / 7°

Forecast data from MET Norway, CC BY 4.0.

Smart travel dates

Holidays and peak dates for Seattle

Fares and hotel rates usually run higher around these dates. Booking earlier or moving your trip by a day or two often costs less.

Busiest periods: Summer travel (15 Jun – 31 Aug), Holiday season (18 Dec – 02 Jan).

  • 11NovVeterans DayWednesday
  • 26NovThanksgiving DayThursday
  • 25DecChristmas DayFriday
  • 01JanNew Year's DayFriday
  • 18JanMartin Luther King, Jr. DayMonday
  • 12FebLincoln's BirthdayFriday

Fixed-date national holidays. Festivals that follow the lunar calendar shift each year and are not listed here, so check the exact date for your travel year.

Compare your journey

How to travel London to Seattle

Ways to make this trip that you can book on FlyX, compared by price and journey time.

OptionFromJourney timeAvailabilityAction
Non-stop flight Fastest₹120,2669h 55m13 flights
Connecting flight₹75,177Longer, includes a stop203 options

Air distance is about 7,702 km. 18 airlines operate this route.

Road distance and coach duration are approximate estimates from the air distance, not a timetable.

Connecting cities on this route

Connecting London to Seattle flights shown here most often stop in Chicago, New York and San Francisco.

Airlines flying from London to Seattle

Compare fares, stops, baggage and refundability across the airlines flying this route.

United Airlines Flights

from ₹120,57036 flights
Fares from
₹120,570
Non-stop
None in these results
Departures
36 in the list above

American Airlines Flights

from ₹121,46126 flights
Fares from
₹121,461
Non-stop
2 in these results
Departures
26 in the list above

British Airways Flights

from ₹120,26620 flights
Fares from
₹120,266
Non-stop
2 in these results
Departures
20 in the list above

Virgin Atlantic Airways Flights

from ₹121,46118 flights
Fares from
₹121,461
Non-stop
1 in these results
Departures
18 in the list above

Air France Flights

from ₹121,45217 flights
Fares from
₹121,452
Non-stop
1 in these results
Departures
17 in the list above

Route Overview & Flight Facts

Fastest flight duration9h 55m · British Airways
First departure of the day06:00 · Swiss
Last departure of the day22:40 · Turkish Airlines
Flight options found216
Direct / non-stop options13
Airport codesLondon–LHR, Seattle–SEA

Fares and timings are indicative. The exact price is confirmed with the airline when you search.

Flight Schedule, Timings & Airfare Insights

Daily Flight Schedule & Travel Duration

The search for Sat, 14 Nov found 216 flight options, 13 of them non-stop. The first flight leaves around 06:00 and the last around 22:40. The fastest flight takes about 9h 55m.

Morning vs Evening Departure Fares

Lowest fare by departure window: Afternoon from ₹75,177, Evening from ₹91,789, Morning from ₹103,226. These observations do not predict the cheapest departure window on other dates.

Cheapest Airfare & Best Time to Book

Search your travel dates to compare current fares. Prices change with airline seat availability.

One-Way vs Round-Trip Fare Comparison

Compare the complete cost and conditions of both options for your dates. A round-trip can have different fare and change rules from two one-way tickets. One booking may contain multiple airline PNRs; confirm baggage transfer and connection protection for separate tickets.

Online Web Check-In & Boarding Pass

Check the operating airline’s opening time and check-in deadline for each sector. Seat charges and availability depend on your fare. Use the airline reference and the links on Web Check-in.

How to Book Cheap Flights on FlyX

  1. 1
    Enter your travel details

    Choose one-way or round-trip, pick your dates and travellers in the search form above.

  2. 2
    Compare search results

    Sort or filter the London–Seattle results by price, departure time, stops and airline.

  3. 3
    Open the fare choices

    Check baggage allowance and refundability for each fare type before continuing.

  4. 4
    Review the final price

    Review the refreshed supplier fare, coupon saving and selected payment-method fee before you pay.

  5. 5
    Pay securely

    UPI, cards, net banking and wallets supported; payment and ticket issuance have separate statuses. If issuance is pending, follow the booking status; the confirmed ticket is sent after issuance.

Destination & City Travel Guide

About London

London works best when visits are grouped by area. The British Museum and Bloomsbury can fill one half day, while Westminster and the South Bank offer a different walk along the Thames. Borough Market is close to several river sights, and Greenwich deserves its own trip. From Heathrow, the Elizabeth line, Underground and express rail service reach different parts of the city, so the useful transfer depends on the hotel rather than simply on speed to Paddington.

Read more about London

What's new in London

  • May 2025: V&A East Storehouse opened in Queen Elizabeth Olympic Park, allowing visitors to explore museum collections in a working storage setting.
  • April 2026: V&A East Museum opened nearby, adding another art and design destination to an east London visit.

Tips for travellers from India

Paddington is convenient for Heathrow Express arrivals, but the Elizabeth line can be more useful for a hotel near Tottenham Court Road or farther east. Bloomsbury suits the British Museum and central walks; South Kensington suits the museum quarter. Compare the final station rather than only the advertised airport-train duration. Heathrow’s Piccadilly line takes another route through west London and can avoid a change for some addresses.

Air India uses Terminal 2, while British Airways operates from Terminals 3 and 5. An airline name alone therefore does not always identify the correct building. Within London, use the same contactless card or Oyster card when entering and leaving a rail service. Greenwich is a separate outing along the Thames, not a quick extension of a Westminster museum day. The V&A East sites are in the Olympic Park and should not be confused with the original V&A in South Kensington. Pair the east London museums with one another instead of crossing the city between their entrances.

Best time to visit London

May to September, commonly about 11–24°C, for longer daylight and outdoor walks.

Places to visit in London

British MuseumSouth BankWestminster AbbeyBorough MarketTower BridgeGreenwich

How to reach London

By Air: Heathrow Airport (LHR) is about 25 km west of central London. Heathrow Express reaches Paddington in 15 minutes from Terminals 2 and 3; Elizabeth line, Underground, coaches and taxis are alternatives.

By Rail: Paddington, King’s Cross St Pancras and Waterloo are major rail hubs; the Elizabeth line and Piccadilly line connect Heathrow with the city.

By Road: National Express coaches and local buses serve Heathrow; London buses and taxis cover the city.

What to do in London

Study the collections at the British Museum.
Walk the Thames path along the South Bank.
Browse food stalls at Borough Market.
Visit the historic maritime sites in Greenwich.

London airport information

Heathrow Airport (LHR). Air India operates from Heathrow Terminal 2. British Airways uses Terminals 3 and 5, so passengers should follow the terminal specified for their particular flight.

Why Book Your Flight with FlyX?

Compare the available London to Seattle options by total price, stops, baggage and fare conditions. Search your dates for current availability, then review traveller details and the final price before paying.

Payment confirmation and ticket issuance are separate steps. If your booking is awaiting a PNR or ticket, follow its status and contact FlyX support when you need help. Your issued ticket contains the airline reference and itinerary. Change and cancellation charges depend on the purchased fare and any separately disclosed service fee.

Fare checked before paymentCoupon eligibility checkedBooking status trackingBooking support

Exclusive Flight Offers & Promo Coupons

Coupon codeOfferMax saving
FLYX20Up to 20% Off on Flights₹4,000

Check coupon eligibility and the final discount on the review page before you pay. View full terms.

Frequently Asked Questions

Is it worth booking London to Seattle flights in advance?

There is no guaranteed cheapest booking window. Compare your planned dates early, check nearby dates and consider baggage, connection time and change conditions as well as price. On the London to Seattle dates shown on this page, the lowest fare is on a Saturday at ₹75,177. This can change from week to week.

How far is London from Seattle by air?

The direct air distance between London (LHR) and Seattle (SEA) is about 7,702 km. Actual flight time varies with the routing the airline files and with winds on the day.

Is there a direct flight from London to Seattle?

Yes. 13 non-stop flights are listed on this page for London to Seattle, operated by American Airlines, British Airways, Virgin Atlantic Airways, Air France, Delta Air Lines and 4 others. Use the Stops filter to see only those.

Which airlines fly London to Seattle?

United Airlines, American Airlines, British Airways, Virgin Atlantic Airways and 1 other are listed on this route for the dates shown here. Fares, baggage allowance and refund rules differ by airline and by fare type, so compare the fare conditions and not only the headline price.

How long is the flight from London to Seattle?

The quickest non-stop London to Seattle flight on this page takes about 9h 55m. Non-stop flights here take between 9h 55m and 10h 30m. Journeys with a stop take longer, since the total includes the layover.

What is the baggage allowance on London to Seattle flights?

Allowance is set by the airline and the fare you pick, not by the route. Fares on this page include 23KG (23 KG X 1 pcs), 1 Pieces and 2 Pieces. Cabin baggage is counted separately, and the exact allowance for the fare you choose is shown in the fare conditions before payment.

What is the cheapest London to Seattle flight fare?

The lowest London to Seattle fare on this page is ₹75,177. Fares on the same dates run up to ₹843,511, depending on airline, timing and fare type. Airline prices change often, so search your dates for the current fare.

Which is the cheapest airline for London to Seattle flight?

On this page, Icelandair has the lowest London to Seattle fare, starting from ₹75,177. Turkish Airlines is next, from ₹103,226. The cheapest airline can change with the date, so compare a few days around your trip.

What time do London to Seattle flights depart?

On the dates shown here, the first departure is around 06:00 and the last around 22:40, local time at London. Use the departure-time filter on the results above to narrow to a morning, afternoon or evening slot.

Why does the price change after clicking Book Now?

Airline seat inventory and fares change continuously. Selecting Book Now runs a live fare verification with the airline so the price you approve is the price you pay. If it has moved, you see the new figure before any payment.

Before you book this route

Check the airport codes LHR–SEA, local departure and arrival dates, and every connecting airport. Connections can have different document and baggage requirements from your final destination.

Where these fares come from

The fares, durations, stops and baggage shown here come from real airline search results for this route. They are examples for the dates on this page, not a full timetable and not a locked price. Run a search to see what is available for your own dates.

Fares shown are for departures on .

Check official travel requirements

Confirm passport, visa and transit rules for your nationality and full itinerary with the relevant government and operating airline. IATA travel-document information explains why requirements vary.

For payment, ticket issuance or a change request, see FlyX support. About FlyX.

United States travel guide for Indian travellers

Planning more than the flight? Our United States guide covers the best time to go, how long to plan for, and which places are worth the days you have. Long-haul city breaks and national parks.

Read the United States travel guide

What to Expect When Booking Your Flight

The LHR to SEA cards above show selected flight options. Airline prices and seat availability can move quickly, so the final fare is rechecked in the booking flow.

Approx route distance: 7,702.08 km.

Before you book

Compare nearby dates

The date strip opens the complete search result for the route and selected date.

Use filters

Shortlist by price, stops, departure time and refundable fare preference.

Check fare choices

Continue to Booking opens the verified fare choices, including baggage and refundability, before review.

Lowest London to Seattle airfare on the date shown

Cheapest FareFareDateAirlineDeparture
Lowest Airfare ₹75,177 14/11/2026 Icelandair 12:15

Book London to Seattle Flight Tickets on FlyX

FlyX lists each London to Seattle flight in these results with its fare, departure time, stops, layover airport and baggage, so you can compare air tickets side by side. To find a cheap ticket, sort by price and check what baggage the fare includes. The fare is checked with the airline again before you pay.

London to Seattle Flight Distance, Duration and Time

The aerial distance between London and Seattle is about 7,702 KM. In these results, journey times range from 9h 55m to 39h 12m. Flights with a layover take longer because the total includes the connection time.

London to Seattle flight duration is approximately 9 hours 55 minutes non-stop. There are 13 non-stop London to Seattle direct flights on the departure date shown on this page. London to Seattle flight distance is around 7,702 KM.

London to Seattle Flight Schedule and Timing

The search for these dates returned 216 flight options, 13 of them non-stop. The first departure from London is at 06:00 and the last is at 22:40. Flights leave from Heathrow and land at Seattle/tacoma International.

Flight Route Details & Analysis

Flight DetailsInformation
RouteLondon to Seattle
Aerial Distance7,702 KM
Flight Duration9h 55m - 39h 12m
Airport CodesLondon - LHR, Seattle - SEA
Total Flights Available216 flights13 direct203 with layovers
First Flight DepartureDeparts at 06:00
Last Flight DepartureDeparts at 22:40
Early Morning Flights (12 AM - 8 AM)20 flights0 direct20 with layovers
Morning Flights (8 AM - 12 PM)119 flights4 direct115 with layovers
Afternoon Flights (12 PM - 4 PM)64 flights9 direct55 with layovers
Evening Flights (4 PM - 8 PM)10 flights0 direct10 with layovers
Night Flights (8 PM - 12 AM)3 flights0 direct3 with layovers

Airport Information & Terminals

LHR: London airport system. London can mean Heathrow, Gatwick, Stansted, Luton or City depending on the fare card. Airport choice matters more than the headline price. Match the airport with your hotel area, rail link, baggage and arrival hour before paying.

SEA: Seattle-Tacoma International Airport. Sea-Tac connects to downtown by light rail, while cabs are useful for Bellevue, Redmond or late-night arrivals. Rain and freeway traffic should be part of the plan.
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