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Flights from Seattle to London

SEA to LHR flights and routes map SEA to LHR. All flight routes from Seattle Tacoma International, Washington, USA to Heathrow, United Kingdom. These routes are operated by 23 different airlines. You can either fly non-stop or choose from 31 different transit flights. The shortest flight time is 9 hours and 20 minutes.

From
To
USA SEA Seattle Tacoma Seattle, WA, USA
United Kingdom LHR Heathrow, United Kingdom
SEA
Seattle Tacoma
USASeattle, WA, USA
Heathrow
United KingdomLondon, United Kingdom
LHR
3 direct routes found »
TAKE ME THERE
56 routes with 1 stop found »
TAKE ME THERE

Non-stop routes:

Duration

British Airways
Non-stop with British Airways. 2 flights per day.

SCHEDULE
9h 20m

British Airways
Non-stop with British Airways.
9h 20m
2 flights per day.
SCHEDULE
Virgin Atlantic
Non-stop with Virgin Atlantic. 1 flight per day.

SCHEDULE
9h 25m

Virgin Atlantic
Non-stop with Virgin Atlantic.
9h 25m
1 flight per day.
SCHEDULE
Delta Air Lines
Non-stop with Delta Air Lines. 1-2 flights per day.

SCHEDULE
9h 40m

Delta Air Lines
Non-stop with Delta Air Lines.
9h 40m
1-2 flights per day.
SCHEDULE
Usually in time
Some delays
Usually delayed
CHECK PRICE FOR NON-STOP FLIGHTS
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1 stop routes with the same airline:

Duration

Via Reykjavik KEF
1 stop with Icelandair.

SCHEDULE
12h 05m

Via Reykjavik KEF
1 stop with Icelandair.
12h 05m
SCHEDULE
Via Salt Lake City SLC
1 stop with Delta Air Lines. 0-2 flights per day.

SCHEDULE
12h 30m

Via Salt Lake City SLC
1 stop with Delta Air Lines.
12h 30m
0-2 flights per day.
SCHEDULE
Via Helsinki HEL
1 stop with Finnair.
Begins in 1/6

SCHEDULE
13h 30m

Begins in 1/6
Via Helsinki HEL
1 stop with Finnair.
13h 30m
Begins in 1/6
SCHEDULE
Via New York JFK
1 stop with JetBlue Airways.
Begins in 13/6

SCHEDULE
13h 30m

Begins in 13/6
Via New York JFK
1 stop with JetBlue Airways.
13h 30m
Begins in 13/6
SCHEDULE
Via Dublin DUB
1 stop with Aer Lingus. 0-1 flights per day.

SCHEDULE
13h 55m

Via Dublin DUB
1 stop with Aer Lingus.
13h 55m
0-1 flights per day.
SCHEDULE
Via Toronto YYZ
1 stop with Air Canada. 1-2 flights per day.

SCHEDULE
14h 00m

Via Toronto YYZ
1 stop with Air Canada.
14h 00m
1-2 flights per day.
SCHEDULE
Via Philadelphia PHL
1 stop with American Airlines. 2 flights per day.
Begins in 5/6

SCHEDULE
14h 05m

Begins in 5/6
Via Philadelphia PHL
1 stop with American Airlines.
14h 05m
2 flights per day.
Begins in 5/6
SCHEDULE
Via Vancouver YVR
1 stop with Air Canada. 1-2 flights per day.

SCHEDULE
14h 10m

Via Vancouver YVR
1 stop with Air Canada.
14h 10m
1-2 flights per day.
SCHEDULE
Via Calgary YYC
1 stop with WestJet.

SCHEDULE
14h 15m

Via Calgary YYC
1 stop with WestJet.
14h 15m
SCHEDULE
Via Chicago ORD
1 stop with American Airlines. 1-2 flights per day.

SCHEDULE
14h 20m

Via Chicago ORD
1 stop with American Airlines.
14h 20m
1-2 flights per day.
SCHEDULE
Via Paris CDG
1 stop with Air France. 0-1 flights per day.

SCHEDULE
14h 20m

Via Paris CDG
1 stop with Air France.
14h 20m
0-1 flights per day.
SCHEDULE
Via Denver DEN
1 stop with United Airlines. 1-3 flights per day.

SCHEDULE
14h 35m

Via Denver DEN
1 stop with United Airlines.
14h 35m
1-3 flights per day.
SCHEDULE
Via Dulles IAD
1 stop with United Airlines. 2-4 flights per day.

SCHEDULE
14h 39m

Via Dulles IAD
1 stop with United Airlines.
14h 39m
2-4 flights per day.
SCHEDULE
Via Minneapolis MSP
1 stop with Delta Air Lines. 1-2 flights per day.

SCHEDULE
14h 45m

Via Minneapolis MSP
1 stop with Delta Air Lines.
14h 45m
1-2 flights per day.
SCHEDULE
Via Montreal YUL
1 stop with Air Canada. 0-1 flights per day.

SCHEDULE
14h 50m

Via Montreal YUL
1 stop with Air Canada.
14h 50m
0-1 flights per day.
SCHEDULE
Via Chicago ORD
1 stop with United Airlines. 3-6 flights per day.

SCHEDULE
15h 03m

Via Chicago ORD
1 stop with United Airlines.
15h 03m
3-6 flights per day.
SCHEDULE
Via New York JFK
1 stop with Delta Air Lines. 2 flights per day.

SCHEDULE
15h 25m

Via New York JFK
1 stop with Delta Air Lines.
15h 25m
2 flights per day.
SCHEDULE
Via San Francisco SFO
1 stop with United Airlines. 1-4 flights per day.

SCHEDULE
15h 30m

Via San Francisco SFO
1 stop with United Airlines.
15h 30m
1-4 flights per day.
SCHEDULE
Via Munich MUC
1 stop with Lufthansa.
Begins in 31/5

SCHEDULE
15h 35m

Begins in 31/5
Via Munich MUC
1 stop with Lufthansa.
15h 35m
Begins in 31/5
SCHEDULE
Via New York EWR
1 stop with United Airlines. 1-4 flights per day.

SCHEDULE
16h 00m

Via New York EWR
1 stop with United Airlines.
16h 00m
1-4 flights per day.
SCHEDULE
Via Frankfurt FRA
1 stop with Lufthansa. 0-1 flights per day.

SCHEDULE
16h 25m

Via Frankfurt FRA
1 stop with Lufthansa.
16h 25m
0-1 flights per day.
SCHEDULE
Via Detroit DTW
1 stop with Delta Air Lines. 0-2 flights per day.

SCHEDULE
16h 35m

Via Detroit DTW
1 stop with Delta Air Lines.
16h 35m
0-2 flights per day.
SCHEDULE
Via Boston BOS
1 stop with Delta Air Lines. 2 flights per day.

SCHEDULE
17h 05m

Via Boston BOS
1 stop with Delta Air Lines.
17h 05m
2 flights per day.
SCHEDULE
Via Washington DCA
1 stop with United Airlines.
Begins in 26/9

SCHEDULE
19h 40m

Begins in 26/9
Via Washington DCA
1 stop with United Airlines.
19h 40m
Begins in 26/9
SCHEDULE
Via New York LGA
1 stop with United Airlines. 0-1 flights per day.
Ends in May 2024

SCHEDULE
20h 10m

Ends in May 2024
Via New York LGA
1 stop with United Airlines.
20h 10m
0-1 flights per day.
Ends in May 2024
SCHEDULE
Usually in time
Some delays
Usually delayed
SELECT DATE & CHECK PRICE
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1 stop routes with codeshare or different airlines:

Duration

Via Calgary YYC With Alaska Airlines & Air Canada 2 flights per day.

SCHEDULE
12h 25m

Via Calgary YYC
12h 25m
With Alaska Airlines & Air Canada 2 flights per day.
SCHEDULE
Via Portland PDX With Alaska Airlines & American Airlines 4 flights per day.
CODESHARE

SCHEDULE
12h 27m

Via Portland PDX
12h 27m
With Alaska Airlines & American Airlines 4 flights per day.
CODESHARE
SCHEDULE
Via Helsinki HEL 1 stop with American Airlines.
Begins in 1/6
CODESHARE

SCHEDULE
13h 30m

Begins in 1/6
Via Helsinki HEL
13h 30m
1 stop with American Airlines.
Begins in 1/6
CODESHARE
SCHEDULE
Via Dublin DUB 1 stop with British Airways. 0-1 flights per day.
CODESHARE

SCHEDULE
14h 00m

Via Dublin DUB
14h 00m
1 stop with British Airways. 0-1 flights per day.
CODESHARE
SCHEDULE
Via Philadelphia PHL With American Airlines & Finnair 2 flights per day.
Begins in 5/6
CODESHARE

SCHEDULE
14h 05m

Begins in 5/6
Via Philadelphia PHL
14h 05m
With American Airlines & Finnair 2 flights per day.
Begins in 5/6
CODESHARE
SCHEDULE
Via Amsterdam AMS With Air France & British Airways 2 flights per day.
CODESHARE

SCHEDULE
14h 20m

Via Amsterdam AMS
14h 20m
With Air France & British Airways 2 flights per day.
CODESHARE
SCHEDULE
Via Detroit DTW With American Airlines & Air France
CODESHARE

SCHEDULE
14h 20m

Via Detroit DTW
14h 20m
With American Airlines & Air France
CODESHARE
SCHEDULE
Via Chicago ORD With American Airlines & Finnair 1-2 flights per day.
CODESHARE

SCHEDULE
14h 20m

Via Chicago ORD
14h 20m
With American Airlines & Finnair 1-2 flights per day.
CODESHARE
SCHEDULE
Via Reykjavik KEF With Icelandair & British Airways 0-1 flights per day.

SCHEDULE
14h 25m

Via Reykjavik KEF
14h 25m
With Icelandair & British Airways 0-1 flights per day.
SCHEDULE
Via Toronto YYZ With Air Canada & American Airlines 1-2 flights per day.
CODESHARE

SCHEDULE
14h 35m

Via Toronto YYZ
14h 35m
With Air Canada & American Airlines 1-2 flights per day.
CODESHARE
SCHEDULE
Via Raleigh/Durham RDU With Alaska Airlines & American Airlines
Begins in 1/10

SCHEDULE
14h 38m

Begins in 1/10
Via Raleigh/Durham RDU
14h 38m
With Alaska Airlines & American Airlines
Begins in 1/10
SCHEDULE
Via Minneapolis MSP 1 stop with Air France. 0-1 flights per day.
CODESHARE

SCHEDULE
14h 40m

Via Minneapolis MSP
14h 40m
1 stop with Air France. 0-1 flights per day.
CODESHARE
SCHEDULE
Via Frankfurt FRA With Condor & Lufthansa 0-1 flights per day.

SCHEDULE
14h 40m

Via Frankfurt FRA
14h 40m
With Condor & Lufthansa 0-1 flights per day.
CONDOR.COM
SCHEDULE
Via Munich MUC With Lufthansa & British Airways
Begins in 31/5

SCHEDULE
14h 40m

Begins in 31/5
Via Munich MUC
14h 40m
With Lufthansa & British Airways
Begins in 31/5
SCHEDULE
Via Paris CDG With Air France & British Airways 0-1 flights per day.

SCHEDULE
14h 45m

Via Paris CDG
14h 45m
With Air France & British Airways 0-1 flights per day.
SCHEDULE
Via Montreal YUL With Air Canada & Lufthansa 0-1 flights per day.
CODESHARE

SCHEDULE
14h 50m

Via Montreal YUL
14h 50m
With Air Canada & Lufthansa 0-1 flights per day.
CODESHARE
SCHEDULE
Via Boston BOS 1 stop with American Airlines. 0-1 flights per day.
CODESHARE

SCHEDULE
14h 59m

Via Boston BOS
14h 59m
1 stop with American Airlines. 0-1 flights per day.
CODESHARE
SCHEDULE
Via Vancouver YVR With Air Canada & American Airlines 1-2 flights per day.
CODESHARE

SCHEDULE
15h 00m

Via Vancouver YVR
15h 00m
With Air Canada & American Airlines 1-2 flights per day.
CODESHARE
SCHEDULE
Via Dulles IAD With Alaska Airlines & American Airlines 1-2 flights per day.
CODESHARE

SCHEDULE
15h 08m

Via Dulles IAD
15h 08m
With Alaska Airlines & American Airlines 1-2 flights per day.
CODESHARE
SCHEDULE
Via Las Vegas LAS 1 stop with American Airlines. 1-2 flights per day.
CODESHARE

SCHEDULE
15h 12m

Via Las Vegas LAS
15h 12m
1 stop with American Airlines. 1-2 flights per day.
CODESHARE
SCHEDULE
Via Salt Lake City SLC 1 stop with Air France.
Wed & Sat
CODESHARE

SCHEDULE
15h 27m

Wed & Sat
Via Salt Lake City SLC
15h 27m
1 stop with Air France.
Wed & Sat
CODESHARE
SCHEDULE
Via Baltimore BWI With Alaska Airlines & American Airlines 0-1 flights per day.
CODESHARE

SCHEDULE
15h 34m

Via Baltimore BWI
15h 34m
With Alaska Airlines & American Airlines 0-1 flights per day.
CODESHARE
SCHEDULE
Via New York JFK 1 stop with Air France. 2 flights per day.
CODESHARE

SCHEDULE
15h 35m

Via New York JFK
15h 35m
1 stop with Air France. 2 flights per day.
CODESHARE
SCHEDULE
Via Denver DEN 1 stop with American Airlines.
CODESHARE

SCHEDULE
16h 15m

Via Denver DEN
16h 15m
1 stop with American Airlines.
CODESHARE
SCHEDULE
Via Cincinnati CVG 1 stop with American Airlines. 0-1 flights per day.
CODESHARE

SCHEDULE
16h 17m

Via Cincinnati CVG
16h 17m
1 stop with American Airlines. 0-1 flights per day.
CODESHARE
SCHEDULE
Via Pittsburgh PIT With Alaska Airlines & American Airlines 0-1 flights per day.
CODESHARE

SCHEDULE
16h 35m

Via Pittsburgh PIT
16h 35m
With Alaska Airlines & American Airlines 0-1 flights per day.
CODESHARE
SCHEDULE
Via New York EWR 1 stop with American Airlines. 1-2 flights per day.
CODESHARE

SCHEDULE
16h 43m

Via New York EWR
16h 43m
1 stop with American Airlines. 1-2 flights per day.
CODESHARE
SCHEDULE
Via San Francisco SFO 1 stop with American Airlines. 0-1 flights per day.
CODESHARE

SCHEDULE
16h 45m

Via San Francisco SFO
16h 45m
1 stop with American Airlines. 0-1 flights per day.
CODESHARE
SCHEDULE
Via Nashville BNA With Alaska Airlines & American Airlines 0-1 flights per day.
Ends in Apr 2024
CODESHARE

SCHEDULE
17h 13m

Ends in Apr 2024
Via Nashville BNA
17h 13m
With Alaska Airlines & American Airlines 0-1 flights per day.
Ends in Apr 2024
CODESHARE
SCHEDULE
Via New York LGA With United Airlines & American Airlines 0-1 flights per day.
Ends in May 2024
CODESHARE

SCHEDULE
19h 23m

Ends in May 2024
Via New York LGA
19h 23m
With United Airlines & American Airlines 0-1 flights per day.
Ends in May 2024
CODESHARE
SCHEDULE
Via Washington DCA With United Airlines & American Airlines
Begins in 26/9
CODESHARE

SCHEDULE
20h 05m

Begins in 26/9
Via Washington DCA
20h 05m
With United Airlines & American Airlines
Begins in 26/9
CODESHARE
SCHEDULE
Usually in time
Some delays
Usually delayed
SELECT DATE & CHECK PRICE
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Seattle to London flights

There are over 34 airlines and as many as 4210 flights every week to this destination. You can fly non-stop to London (LHR) from Seattle (SEA) with British Airways, Virgin Atlantic or Delta Air Lines but if a stopover option suits you better you can choose to fly via Calgary, Portland or any other of the 31 alternatives with flight connections.

Tip! Consider arriving at City (LCY) or Gatwick (LGW) instead.

Seattle to London with British Airways

You can fly non-stop every weekday with flights departing between 13 pm and 19 pm. British Airways is a member of the air alliance OneWorld.

With Virgin Atlantic

You can fly non-stop every weekday with flights departing at 15:20, 16:30 or 17:15. Virgin Atlantic is a member of SkyTeam.

With Delta Air Lines

You can fly non-stop every weekday with flights departing at 18 pm, 19 pm or 21 pm. You can also catch a transit flight via Salt Lake City or Minneapolis. Delta Air Lines is a member of SkyTeam.

With Icelandair

If you fly from Seattle with Icelandair you will do a stopover in Reykjavik, KEF before reaching London. This flight trip will take 12 hours and 5 minutes and you can fly every weekday with departures at 15:50 or 23:00.

Miles & flight time: SEA - LHR

The shortest flight time between SEA and LHR is 9 hours and 20 minutes.

ViaTotal flight timeLayover timeMiles
Direct9h 20m-4812 (7743 km)
YYC Calgary12h 25m2h 6m4836 (7781 km)
PDX Portland12h 27m3h 29m5057 (8137 km)
HEL Helsinki13h 30m1h 10m5948 (9570 km)
DUB Dublin14h 0m3h 40m4832 (7775 km)
PHL Philadelphia14h 5m1h 54m5940 (9557 km)
ORD Chicago14h 20m2h 32m5689 (9154 km)
CDG Paris14h 20m2h 50m5245 (8439 km)
DTW Detroit14h 20m2h 21m5708 (9184 km)
AMS Amsterdam14h 20m3h 15m5129 (8253 km)
KEF Reykjavik14h 25m1h 20m4815 (7747 km)
YYZ Toronto14h 35m2h 35m5632 (9062 km)
RDU Raleigh/Durham14h 38m1h 42m6246 (10050 km)
MSP Minneapolis14h 40m3h 2m5428 (8734 km)
MUC Munich14h 40m2h 45m5884 (9467 km)
FRA Frankfurt14h 40m4h 55m5529 (8896 km)
YUL Montreal14h 50m3h 4m5548 (8927 km)
BOS Boston14h 59m3h 1m5776 (9294 km)
YVR Vancouver15h 0m4h 36m4862 (7823 km)
IAD Dulles15h 8m4h 41m6000 (9654 km)
LAS Las Vegas15h 12m3h 12m6117 (9842 km)
SLC Salt Lake City15h 27m3h 14m5571 (8964 km)
BWI Baltimore15h 34m3h 16m5987 (9633 km)
JFK New York15h 35m2h 11m5889 (9475 km)
DEN Denver16h 15m3h 50m5712 (9191 km)
CVG Cincinnati16h 17m4h 55m5944 (9564 km)
PIT Pittsburgh16h 35m4h 46m5862 (9432 km)
EWR New York16h 43m2h 46m5883 (9466 km)
SFO San Francisco16h 45m4h 55m6066 (9760 km)
BNA Nashville17h 13m4h 29m6179 (9942 km)
LGA New York19h 23m--
DCA Washington20h 5m--
The flight times and layover times in the table above are approximate and vary depending on flight number, aircraft, airline, weather and time of day.SEA-LHR flight routesSeattle to London flight routes illustrated on a map.
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Unpublished Flight Rates From Seattle to London
From Seattle to United Kingdom

Below is a list of other destinations to United Kingdom from Seattle Tacoma International with either direct flights or 1 stop connections.

From USA to London

Below is a list of other cities in USA with flights to London with either non-stop or connecting flights.

You can fly to London (LHR) from Seattle (SEA) non-stop with British Airways, Virgin Atlantic or Delta Air Lines. The flight takes approximately 9 hours and 20 minutes. If you travel with a connecting flight instead, for example via Calgary, the total flight time will be 12 hours and 25 minutes.

If you are interested in direct flights, you can choose from British Airways, Virgin Atlantic or Delta Air Lines. If you choose to fly with stops instead you can fly with Alaska Airlines, Air Canada, American Airlines, British Airways, Air France, Icelandair, Lufthansa, Condor or United Airlines.

The flight time between Seattle Tacoma, SEA and Heathrow, LHR, is 9 hours and 20 minutes. The distance is 6066 miles (or 9760 kilometers).

Yes, you can fly non-stop to LHR from SEA with British Airways, Virgin Atlantic or Delta Air Lines.

A codeshare agreement means that cooperating airlines are able to sell seats on each other’s flights. This means that you are able to travel to more destinations than your airline of choice normally offers. Codeshare flights are also beneficial because of the seamless transits you can get with connecting flights from the same airline. The downside of choosing a codeshare flight can be that you in some cases can’t upgrade codeshare flights or use elite benefits.

A connecting or transit flight means that you reach your final destination through two or more flights – in other words a non-direct flight. You will change to a new aircraft after your first flight, this may include moving to another terminal at the airport aswell. The time required to transfer passengers and luggage between flights is called Minimum Connecting Time (MCT) and are always taken into account here on Flightroutes.com.

If you bought your whole flight on a single ticket, the airline will book you on the next available connecting flight.

With connecting flights, checked in luggage is most commonly forwarded to your final destination when buying a single ticket for both flights.

If you miss your connecting flight due to circumstances outside your control such as your first flight being delayed, you should turn to your airline who will provide you with a seat on the next available flight. This is usually done free of charge, and only applies if you purchased your trip as one ticket. If the next connecting flight is the following day, the airline usually provides accommodation and meals.
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