Seattle to London Flights

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Seattle (SEA) to London (LON) Flight Information

Below are some common questions asked about this flight route:

Seattle (SEA) to London (LON) Flight Schedule

Flight info.
Departure
Arrival
RouteWeekly Schedule

13:30

SEA

07:10

LHR

London to SeattleS---TFSSearch

13:45

SEA

07:00

LGW

London to Seattle--T-T-SSearch

13:50

SEA

07:10

LHR

London to Seattle----T--Search

15:15

SEA

08:40

LHR

London to Seattle------SSearch

15:20

SEA

08:45

LHR

London to Seattle-MT----Search

17:15

SEA

11:10

LHR

London to Seattle-M-----Search

17:55

SEA

11:15

LHR

London to SeattleSMTWTFSSearch

AY5448

Finnair

18:25

SEA

11:50

LHR

London to Seattle--T-T-SSearch

19:20

SEA

12:40

LHR

London to Seattle--TWT-SSearch

19:55

SEA

13:20

LHR

London to Seattle-MT----Search
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Flights from Seattle to London City Airport (LCY)

29 Aug, 13:25 - 5 Sep, 13:05
AF | Air France
15h 15m
SEA - LCY
2 stop
AU$5,129
Round-trip from
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Flights from Seattle to London Heathrow Airport (LHR)

15 Sep, 19:20 - 22 Sep, 15:25
AA | American Airlines
9h 20m
SEA - LHR
Nonstop
AU$1,014
Round-trip from
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8 Sep, 19:20 - 15 Sep, 15:25
AY | Finnair
9h 20m
SEA - LHR
Nonstop
AU$1,363
Round-trip from
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15 Sep, 19:20 - 22 Sep, 15:25
BA | British Airways
9h 20m
SEA - LHR
Nonstop
AU$1,389
Round-trip from
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15 Sep, 19:20 - 22 Sep, 15:25
IB | Iberia
9h 20m
SEA - LHR
Nonstop
AU$1,389
Round-trip from
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7 Sep, 19:20 - 14 Sep, 15:25
AA | American Airlines
9h 20m
SEA - LHR
Nonstop
AU$1,429
Round-trip from
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Prices shown are for 1 adult ticket including taxes & fees.(As ticket fares can change frequently, these advertised prices are for reference only. The actual prices will be shown at time of booking.)

Roundtrip vs One-Way Flights from Seattle (SEA) to London (LON)

There is usually no major price difference between buying a roundtrip flight versus a one-way flight. Increased flexibility is the main benefit when it comes to buying a one-way flight from Seattle(SEA) to London(LON). However, booking a roundtrip flight is a simpler process. You can compare roundtrip and one-way flights by using our flight comparison tool.

Travel from Seattle (SEA) to London (LON)

London attracts thousands of visitors every year for both business and pleasure. Planning a trip from Seattle to London is easy when you use Trip.com to help you make travel arrangements. With Trip.com, you can search for available flights and hotel rooms, and then make your booking quickly and easily online.

A Trip to Remember (SEA - LON)

Make your journey from Seattle (SEA) to London (LON) a trip to remember when you use Trip.com to review city attractions before you arrive. With a preview of what's available at your destination, you can make any necessary reservations in advance for the best travel experience possible.