Flight routes from London to Seattle
LHR to SEA. All flight route options from Heathrow, United Kingdom to Seattle Tacoma International, Washington, USA. These routes are operated by 23 different airlines. You can either fly non-stop or choose from 28 different transit flights. The shortest flight time is 9 hours and 50 minutes.
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London to Seattle flights
There are over 31 airlines and as many as 1946 flights every week to this destination. You can fly non-stop to Seattle (SEA) from London (LHR) with British Airways, Virgin Atlantic or Delta Air Lines but if a stopover option suits you better you can choose to fly via Reykjavik, Vancouver or any other of the 28 alternatives with connectiing airports.
Tip! Consider arriving at Seattle Tacoma International (SEA) or Seattle Tacoma International (SEA) instead.
London to Seattle with British Airways
You can fly non-stop every weekday with flights departing at 9:00 am, 3:00 pm or 4:00 pm. British Airways is a member of the air alliance OneWorld.
With Icelandair
If you fly from London with Icelandair you will do a stopover in Reykjavik, KEF before reaching Seattle. This flight trip will take 12 hours and 45 minutes and you can fly every weekday with departures at 12:15 or 13:05.
Distance & flight times: Heathrow to Seattle Airport
The shortest flight time between LHR and SEA is 9 hours and 50 minutes.
Via | Total flight time | Layover time | Distance |
---|---|---|---|
Direct | 9h 50m | - | 4812 miles (7743 km) |
KEF Reykjavik | 12h 45m | 1h 35m | 4815 miles (7747 km) |
YVR Vancouver | 13h 25m | 2h 35m | 4862 miles (7823 km) |
CDG Paris | 13h 37m | 1h 35m | 5245 miles (8439 km) |
FRA Frankfurt | 13h 40m | 4h 15m | 5529 miles (8896 km) |
SLC Salt Lake City | 13h 55m | 55m | 5571 miles (8964 km) |
HEL Helsinki | 14h 5m | 1h 25m | 5948 miles (9570 km) |
PDX Portland | 14h 11m | 3h 10m | 5057 miles (8137 km) |
MUC Munich | 14h 15m | 1h 40m | 5884 miles (9467 km) |
YYC Calgary | 14h 23m | 2h 29m | 4836 miles (7781 km) |
CPH Copenhagen | 14h 50m | 3h 35m | 5491 miles (8835 km) |
ZRH Zurich | 14h 50m | 3h 40m | 5765 miles (9276 km) |
DUB Dublin | 15h 0m | 3h 50m | 4832 miles (7775 km) |
YUL Montreal | 15h 32m | 2h 25m | 5548 miles (8927 km) |
AMS Amsterdam | 15h 40m | 4h 5m | 5129 miles (8253 km) |
BNA Nashville | 15h 49m | 1h 6m | 6179 miles (9942 km) |
MSP Minneapolis | 16h 14m | 3h 20m | 5428 miles (8734 km) |
LAS Las Vegas | 16h 22m | 2h 25m | 6117 miles (9842 km) |
DEN Denver | 16h 24m | 3h 32m | 5712 miles (9191 km) |
ORD Chicago | 16h 25m | 1h 56m | 5689 miles (9154 km) |
IAD Dulles | 16h 55m | 2h 32m | 6000 miles (9654 km) |
PHL Philadelphia | 16h 59m | 3h 10m | 5940 miles (9557 km) |
SFO San Francisco | 17h 11m | 2h 32m | 6066 miles (9760 km) |
DTW Detroit | 17h 41m | 2h 50m | 5708 miles (9184 km) |
EWR New York | 17h 44m | 4h 50m | 5869 miles (9443 km) |
YYZ Toronto | 17h 45m | 3h 5m | 5632 miles (9062 km) |
JFK New York | 18h 19m | 3h 20m | 5889 miles (9475 km) |
BOS Boston | 18h 24m | 4h 24m | 5776 miles (9294 km) |
RDU Raleigh/Durham | 18h 49m | 4h 25m | 6246 miles (10050 km) |


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Unpublished Flight Rates From London to Seattle
From London to USA
Below is a list of other destinations to USA from Heathrow with either direct flights or 1 stop connections.
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DFW Dallas Direct
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ORD Chicago Direct
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ATL Atlanta Direct
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DEN Denver Direct
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JFK New York Direct
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MIA Miami Direct
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LAX Los Angeles Direct
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CLT Charlotte Direct
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EWR New York Direct
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IAH Houston Direct
From United Kingdom to Seattle
Below is a list of other cities in United Kingdom with flights to Seattle with either non-stop or connecting flights.