Cheap Flights from London to Seattle

London to Seattle Flight Information

Below are some common questions asked about this flight route:

When can I book the cheapest flight from London to Seattle?

Airlines adjust prices for plane tickets based on the day and time that you book your flight. After analyzing data from all airlines, we have discovered that the best days to book flights from London to Seattle are Tuesdays, Wednesdays, and Saturdays.

What are the airlines flying from London to Seattle?

What is the most popular airline for non-stop flights from London to Seattle?

British Airways provides 63 of the non-stop flights between London and Seattle.

How many airports are there in Seattle?

Average duration of direct flights: 9h51m
Airports at destination:
Flight route:
Price starting from:

London to Seattle Flight Schedule

Flight info. Departure
Arrival
Route Weekly Schedule
12:25 LHR 14:15 SEA
London to Seattle -MTWTFS Search
14:30 LHR 17:25 SEA
London to Seattle ----T-- Search
09:50 LHR 11:35 SEA
London to Seattle ----T-- Search
9W5826
10:45 LHR 12:35 SEA
London to Seattle SMTWTFS Search
14:30 LHR 17:25 SEA
London to Seattle -M----- Search
09:50 LHR 11:35 SEA
London to Seattle -----F- Search
AF9904
11:15 LHR 13:10 SEA
London to Seattle S------ Search
AF9918
13:25 LHR 15:20 SEA
London to Seattle -MT---- Search
AM7670
11:30 LHR 13:10 SEA
London to Seattle -MT---- Search
AY5449
14:35 LHR 16:30 SEA
London to Seattle SM-WT-S Search
AY5451
09:50 LHR 11:35 SEA
London to Seattle SMTWTFS Search
09:50 LGW 11:45 SEA
London to Seattle --T-T-S Search
11:15 LHR 13:10 SEA
London to Seattle SMT---- Search
13:25 LHR 15:20 SEA
London to Seattle -MT---- Search
EI8749
15:25 LHR 17:15 SEA
London to Seattle -MTW-FS Search
EI8753
09:40 LHR 11:35 SEA
London to Seattle ----TFS Search
IB7313
15:25 LHR 17:10 SEA
London to Seattle ------S Search
IB7315
09:50 LHR 11:35 SEA
London to Seattle ------S Search
11:15 LHR 13:10 SEA
London to Seattle SMTWTFS Search
11:30 LHR 13:10 SEA
London to Seattle SMTW--- Search

London to Seattle-Tacoma International Airport (SEA)

11:15, Jun 22 - 15:15, Jun 29
DL | Delta Air Lines
9h 55m
LHR - SEA
Nonstop
US$492
Round-trip from
Search
09:50, Jun 9 - 13:50, Jun 15
AY | Finnair
9h 45m
LHR - SEA
Nonstop
US$502
Round-trip from
Search
11:15, Jun 30 - 15:15, Jul 7
VS | Virgin Atlantic
9h 55m
LHR - SEA
Nonstop
US$504
Round-trip from
Search
15:25, Jun 9 - 13:50, Jun 15
BA | British Airways
9h 45m
LHR - SEA
Nonstop
US$512
Round-trip from
Search
15:25, Jul 1 - 13:50, Jul 7
AA | American Airlines
9h 45m
LHR - SEA
Nonstop
US$525
Round-trip from
Search

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 London to Seattle

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 London to Seattle. However, booking a roundtrip flight is a simpler process. You can compare roundtrip and one-way flights by using our flight comparison tool.

Nonstop vs Connecting Flights from London to Seattle

The average price for connecting flights from London to Seattle is USD 690.15.The average price for nonstop flights from London to Seattle is USD 851.98.

Travel from London to Seattle

Seattle attracts thousands of visitors every year for both business and pleasure. Planning a trip from London to Seattle 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

Make your journey from London to Seattle 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.