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Flights from London to Seattle – Direct & connecting routes

Non-stop airlines Connecting flights Show map Price search

LHR to SEA flights and routes map LHR to SEA – All flight route options from Heathrow, United Kingdom to Seattle Tacoma International, Washington, USA. These flights are operated by 22 different airlines. Fly non-stop or choose from 28 different connecting flights. The shortest flight time is 9 hours and 50 minutes. See the full flight schedule and time table, including departure times, airlines and stopover details to find the best option for you.

From
To
United Kingdom LHR Heathrow London, United Kingdom
USA SEA Seattle Tacoma , WA, USA
LHR
Heathrow
United KingdomLondon, United Kingdom
Seattle Tacoma
USASeattle, WA, USA
SEA
3 direct routes found »
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52 routes with 1 stop found »
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Non-stop route options:

Duration

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

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9h 50m

British Airways
Non-stop with British Airways.
9h 50m
2 flights per day.
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Virgin Atlantic
Non-stop with Virgin Atlantic. 1 flight per day.

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10h 10m

Virgin Atlantic
Non-stop with Virgin Atlantic.
10h 10m
1 flight per day.
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Delta Air Lines
Non-stop with Delta Air Lines. 1 flight per day.

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10h 25m

Delta Air Lines
Non-stop with Delta Air Lines.
10h 25m
1 flight per day.
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1 stop route options with the same airline:

Duration

Via Vancouver YVR
1 stop with Air Canada.

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12h 26m

Via Vancouver YVR
1 stop with Air Canada.
12h 26m
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Via Reykjavik KEF
1 stop with Icelandair.

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12h 45m

Via Reykjavik KEF
1 stop with Icelandair.
12h 45m
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Via Paris CDG
1 stop with Air France. 0-1 flights per day.

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13h 30m

Via Paris CDG
1 stop with Air France.
13h 30m
0-1 flights per day.
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Via Frankfurt FRA
1 stop with Lufthansa. 0-1 flights per day.

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13h 40m

Via Frankfurt FRA
1 stop with Lufthansa.
13h 40m
0-1 flights per day.
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Via Munich MUC
1 stop with Lufthansa. 0-2 flights per day.
Wed,Fri & Sun

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14h 09m

Wed,Fri & Sun
Via Munich MUC
1 stop with Lufthansa.
14h 09m
0-2 flights per day.
Wed,Fri & Sun
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Via Calgary YYC
1 stop with WestJet.

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14h 18m

Via Calgary YYC
1 stop with WestJet.
14h 18m
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Via Helsinki HEL
1 stop with Finnair. 0-3 flights per day.

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14h 30m

Via Helsinki HEL
1 stop with Finnair.
14h 30m
0-3 flights per day.
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Via Montreal YUL
1 stop with Air Canada. 0-1 flights per day.

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14h 36m

Via Montreal YUL
1 stop with Air Canada.
14h 36m
0-1 flights per day.
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Via Denver DEN
1 stop with United Airlines. 2 flights per day.

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14h 43m

Via Denver DEN
1 stop with United Airlines.
14h 43m
2 flights per day.
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Via Copenhagen CPH
1 stop with Scandinavian Airlines. 0-1 flights per day.

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15h 10m

Via Copenhagen CPH
1 stop with Scandinavian Airlines.
15h 10m
0-1 flights per day.
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Via Dublin DUB
1 stop with Aer Lingus. 2-3 flights per day.

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15h 20m

Via Dublin DUB
1 stop with Aer Lingus.
15h 20m
2-3 flights per day.
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Via Salt Lake City SLC
1 stop with Delta Air Lines. 0-1 flights per day.

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15h 30m

Via Salt Lake City SLC
1 stop with Delta Air Lines.
15h 30m
0-1 flights per day.
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Via Minneapolis MSP
1 stop with Delta Air Lines. 0-1 flights per day.

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16h 03m

Via Minneapolis MSP
1 stop with Delta Air Lines.
16h 03m
0-1 flights per day.
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Via San Francisco SFO
1 stop with United Airlines. 3 flights per day.

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16h 23m

Via San Francisco SFO
1 stop with United Airlines.
16h 23m
3 flights per day.
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Via Dulles IAD
1 stop with United Airlines. 2 flights per day.

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16h 29m

Via Dulles IAD
1 stop with United Airlines.
16h 29m
2 flights per day.
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Via Chicago ORD
1 stop with United Airlines. 3 flights per day.

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16h 32m

Via Chicago ORD
1 stop with United Airlines.
16h 32m
3 flights per day.
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Via Chicago ORD
1 stop with American Airlines. 1-2 flights per day.

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16h 54m

Via Chicago ORD
1 stop with American Airlines.
16h 54m
1-2 flights per day.
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Via Philadelphia PHL
1 stop with American Airlines. 0-1 flights per day.

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17h 01m

Via Philadelphia PHL
1 stop with American Airlines.
17h 01m
0-1 flights per day.
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Via Detroit DTW
1 stop with Delta Air Lines. 0-1 flights per day.

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17h 04m

Via Detroit DTW
1 stop with Delta Air Lines.
17h 04m
0-1 flights per day.
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Via New York EWR
1 stop with United Airlines. 2 flights per day.

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17h 28m

Via New York EWR
1 stop with United Airlines.
17h 28m
2 flights per day.
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Via Boston BOS
1 stop with Delta Air Lines.

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17h 30m

Via Boston BOS
1 stop with Delta Air Lines.
17h 30m
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Via Toronto YYZ
1 stop with Air Canada. 0-2 flights per day.
Begins in 14/10

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17h 40m

Begins in 14/10
Via Toronto YYZ
1 stop with Air Canada.
17h 40m
0-2 flights per day.
Begins in 14/10
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Via New York JFK
1 stop with Delta Air Lines.

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17h 54m

Via New York JFK
1 stop with Delta Air Lines.
17h 54m
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Via New York JFK
1 stop with JetBlue Airways.

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18h 15m

Via New York JFK
1 stop with JetBlue Airways.
18h 15m
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1 stop route options with codeshare or different airlines:

Duration

Via Reykjavik KEF With British Airways & Icelandair 0-1 flights per day.

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11h 50m

Via Reykjavik KEF
11h 50m
With British Airways & Icelandair 0-1 flights per day.
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Via Calgary YYC With Air Canada & Alaska Airlines 0-1 flights per day.
Begins in 26/10

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12h 43m

Begins in 26/10
Via Calgary YYC
12h 43m
With Air Canada & Alaska Airlines 0-1 flights per day.
Begins in 26/10
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Via Frankfurt FRA With British Airways & Lufthansa 0-1 flights per day.

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13h 00m

Via Frankfurt FRA
13h 00m
With British Airways & Lufthansa 0-1 flights per day.
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Via Paris CDG 1 stop with Air France. 2 flights per day.
CODESHARE

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13h 30m

Via Paris CDG
13h 30m
1 stop with Air France. 2 flights per day.
CODESHARE
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Via Salt Lake City SLC 1 stop with Air France. 0-1 flights per day.
CODESHARE

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13h 52m

Via Salt Lake City SLC
13h 52m
1 stop with Air France. 0-1 flights per day.
CODESHARE
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Via Helsinki HEL 1 stop with American Airlines. 0-2 flights per day.
CODESHARE

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14h 05m

Via Helsinki HEL
14h 05m
1 stop with American Airlines. 0-2 flights per day.
CODESHARE
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Via Vancouver YVR With Air Canada & Alaska Airlines 0-1 flights per day.

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14h 07m

Via Vancouver YVR
14h 07m
With Air Canada & Alaska Airlines 0-1 flights per day.
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Via Portland PDX With American Airlines & Alaska Airlines 0-1 flights per day.
CODESHARE

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14h 14m

Via Portland PDX
14h 14m
With American Airlines & Alaska Airlines 0-1 flights per day.
CODESHARE
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Via Montreal YUL With Air Canada & United Airlines 0-1 flights per day.
CODESHARE

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14h 36m

Via Montreal YUL
14h 36m
With Air Canada & United Airlines 0-1 flights per day.
CODESHARE
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Via Zurich ZRH With British Airways & SWISS 0-2 flights per day.
Only mondays
CODESHARE

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14h 50m

Only mondays
Via Zurich ZRH
14h 50m
With British Airways & SWISS 0-2 flights per day.
Only mondays
CODESHARE
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Via Copenhagen CPH With British Airways & Scandinavian Airlines 0-1 flights per day.

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14h 50m

Via Copenhagen CPH
14h 50m
With British Airways & Scandinavian Airlines 0-1 flights per day.
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Via Dublin DUB 1 stop with British Airways. 3-4 flights per day.
CODESHARE

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15h 20m

Via Dublin DUB
15h 20m
1 stop with British Airways. 3-4 flights per day.
CODESHARE
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Via Amsterdam AMS With British Airways & Air France 1-2 flights per day.
CODESHARE

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15h 40m

Via Amsterdam AMS
15h 40m
With British Airways & Air France 1-2 flights per day.
CODESHARE
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Via Minneapolis MSP 1 stop with Air France. 0-1 flights per day.
Begins in 11/9
CODESHARE

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15h 57m

Begins in 11/9
Via Minneapolis MSP
15h 57m
1 stop with Air France. 0-1 flights per day.
Begins in 11/9
CODESHARE
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Via Munich MUC With British Airways & Lufthansa 0-1 flights per day.
Wed,Fri & Sun

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16h 04m

Wed,Fri & Sun
Via Munich MUC
16h 04m
With British Airways & Lufthansa 0-1 flights per day.
Wed,Fri & Sun
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Via Dulles IAD With American Airlines & Alaska Airlines 0-1 flights per day.
CODESHARE

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16h 15m

Via Dulles IAD
16h 15m
With American Airlines & Alaska Airlines 0-1 flights per day.
CODESHARE
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Via Las Vegas LAS With American Airlines & Alaska Airlines 0-1 flights per day.
CODESHARE

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16h 20m

Via Las Vegas LAS
16h 20m
With American Airlines & Alaska Airlines 0-1 flights per day.
CODESHARE
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Via San Francisco SFO 1 stop with American Airlines. 0-1 flights per day.
CODESHARE

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16h 35m

Via San Francisco SFO
16h 35m
1 stop with American Airlines. 0-1 flights per day.
CODESHARE
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Via Philadelphia PHL With American Airlines & Alaska Airlines 0-1 flights per day.

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16h 40m

Via Philadelphia PHL
16h 40m
With American Airlines & Alaska Airlines 0-1 flights per day.
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Via Chicago ORD 1 stop with American Airlines. 2-3 flights per day.
CODESHARE

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16h 54m

Via Chicago ORD
16h 54m
1 stop with American Airlines. 2-3 flights per day.
CODESHARE
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Via Denver DEN With American Airlines & Alaska Airlines 0-1 flights per day.
CODESHARE

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17h 00m

Via Denver DEN
17h 00m
With American Airlines & Alaska Airlines 0-1 flights per day.
CODESHARE
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Via Detroit DTW 1 stop with Air France. 0-1 flights per day.
CODESHARE

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17h 02m

Via Detroit DTW
17h 02m
1 stop with Air France. 0-1 flights per day.
CODESHARE
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Via Toronto YYZ With American Airlines & Air Canada
Begins in 14/10
CODESHARE

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17h 11m

Begins in 14/10
Via Toronto YYZ
17h 11m
With American Airlines & Air Canada
Begins in 14/10
CODESHARE
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Via New York EWR With American Airlines & Alaska Airlines 0-1 flights per day.
CODESHARE

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18h 07m

Via New York EWR
18h 07m
With American Airlines & Alaska Airlines 0-1 flights per day.
CODESHARE
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Via New York JFK With American Airlines & Alaska Airlines 4 flights per day.
CODESHARE

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18h 09m

Via New York JFK
18h 09m
With American Airlines & Alaska Airlines 4 flights per day.
CODESHARE
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Via Boston BOS With American Airlines & Alaska Airlines 0-1 flights per day.
Begins in 6/8
CODESHARE

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18h 20m

Begins in 6/8
Via Boston BOS
18h 20m
With American Airlines & Alaska Airlines 0-1 flights per day.
Begins in 6/8
CODESHARE
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Via Raleigh/Durham RDU With American Airlines & Alaska Airlines

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18h 51m

Via Raleigh/Durham RDU
18h 51m
With American Airlines & Alaska Airlines
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Via Nashville BNA With American Airlines & Delta Air Lines
Begins in 6/8
CODESHARE

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19h 00m

Begins in 6/8
Via Nashville BNA
19h 00m
With American Airlines & Delta Air Lines
Begins in 6/8
CODESHARE
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London to Seattle flights

There are over 31 airlines and as many as 4449 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 Vancouver, Calgary 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 12:05, 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.

ViaTotal flight timeLayover timeDistance
Direct9h 50m-4812 miles (7743 km)
YVR Vancouver12h 26m3h 40m4862 miles (7823 km)
YYC Calgary12h 43m2h 0m4836 miles (7781 km)
KEF Reykjavik12h 45m1h 35m4815 miles (7747 km)
FRA Frankfurt13h 0m1h 0m5529 miles (8896 km)
CDG Paris13h 30m1h 30m5245 miles (8439 km)
SLC Salt Lake City13h 52m59m5571 miles (8964 km)
HEL Helsinki14h 5m1h 5m5948 miles (9570 km)
PDX Portland14h 14m3h 24m5057 miles (8137 km)
YUL Montreal14h 36m3h 25m5548 miles (8927 km)
ZRH Zurich14h 50m3h 40m5765 miles (9276 km)
CPH Copenhagen14h 50m3h 35m5491 miles (8835 km)
DUB Dublin15h 20m4h 20m4832 miles (7775 km)
AMS Amsterdam15h 40m4h 0m5129 miles (8253 km)
MSP Minneapolis15h 57m2h 55m5428 miles (8734 km)
MUC Munich16h 4m1h 35m5884 miles (9467 km)
IAD Dulles16h 15m1h 36m6000 miles (9654 km)
LAS Las Vegas16h 20m3h 54m6117 miles (9842 km)
SFO San Francisco16h 35m4h 34m6066 miles (9760 km)
ORD Chicago16h 54m2h 37m5689 miles (9154 km)
DEN Denver17h 0m4h 7m5712 miles (9191 km)
PHL Philadelphia17h 1m3h 35m5940 miles (9557 km)
DTW Detroit17h 2m2h 52m5708 miles (9184 km)
YYZ Toronto17h 11m3h 35m5632 miles (9062 km)
EWR New York18h 7m4h 45m5869 miles (9443 km)
JFK New York18h 9m2h 43m5889 miles (9475 km)
BOS Boston18h 20m2h 43m5776 miles (9294 km)
RDU Raleigh/Durham18h 51m4h 26m6246 miles (10050 km)
BNA Nashville19h 0m4h 45m6179 miles (9942 km)
The flight times and layover times in the table above are approximate and may vary depending on flight number, aircraft, airline, weather, and time of day.LHR-SEA flight routesLondon to Seattle flight routes illustrated on a map.
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From London to USA

Below is a list of other destinations to USA from Heathrow with either direct flights or 1 stop connections.

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.

You can fly non-stop from London (LHR) to Seattle (SEA) with British Airways, Virgin Atlantic or Delta Air Lines. The flight takes approximately 9 hours and 50 minutes. If you travel with a connecting flight instead, for example via Vancouver, the total flight time will be 12 hours and 26 minutes.

If you're interested in direct flights, British Airways, Virgin Atlantic or Delta Air Lines is available. For flights with stopovers, Air Canada, Alaska Airlines, Icelandair, British Airways, Lufthansa, Air France, American Airlines, SWISS, Scandinavian Airlines or Delta Air Lines is also an option.

The flight time between Heathrow (LHR) and Seattle Tacoma International (SEA) is approximately 9 hours and 50 minutes. The distance between the two airports is 5689 miles (or 9154 kilometers).

Yes, you can fly non-stop to SEA from LHR 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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