Skip to main content
Beginning of main content

SEA (Seattle) to LGW (London) Flights $481.46

Search over 321,000 hotels worldwide and 400 airlines worldwide.
Secure incredible value with Expedia's Price Guarantee.
No Expedia cancellation fee to change or cancel almost any hotel reservation.

Here are your best fares found in the past 7 days

The lowest fare found for this route is $589.26 on Tue, Sep 12 from SEA to LGW
Flights Fare Calendar Find minimum fare between origin SEA and destination LGW Click this button to get previous 30 days data Click this button to get next 30 days data $2871 $2461 $2051 $1640 $1230 $820 $410 $0 Jun Jul 23 24 25 26 27 28 29 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 1 2 3 4 5 6 7 8 9 10 F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T Price is $ 2461.46 on Air Canada Price is $ 1968.39 on Icelandair Price is $ 1968.03 on JetBlue Airways Price is $ 1752.46 on TAP Portugal Price is $ 1702.06 on Air Canada Price is $ 1644.61 on Icelandair Price is $ 1640.03 on JetBlue Airways Price is $ 1542.23 on Aer Lingus Price is $ 1520.26 on Air Canada Price is $ 1448.26 on Air Canada Price is $ 1425.9 on Icelandair Price is $ 1417.76 on Air Canada Price is $ 1415.93 on JetBlue Airways Price is $ 1347.65 on Icelandair Price is $ 1339.36 on Icelandair Price is $ 1320.86 on Air Canada Price is $ 1317.59 on Icelandair Price is $ 1313.92 on Icelandair Price is $ 1295.98 on Air Canada Price is $ 1275.6 on Sun Country Airlines Price is $ 1271.59 on Air Canada Price is $ 1260.68 on Sun Country Airlines Price is $ 1202.5 on Icelandair Price is $ 1148.49 on Icelandair Price is $ 1148.2 on Lufthansa Price is $ 1092.64 on Icelandair Price is $ 1074.61 on Sun Country Airlines Price is $ 1057.22 on JetBlue Airways Price is $ 1032.13 on Icelandair Price is $ 1031.73 on Icelandair Price is $ 1031.66 on Icelandair Price is $ 1030.52 on Icelandair Price is $ 1030.52 on Icelandair Price is $ 1024.9 on Air Canada Price is $ 1014.86 on Delta Price is $ 1014.66 on Delta Price is $ 1004.01 on Sun Country Airlines Price is $ 994.36 on American Airlines Price is $ 981.86 on American Airlines Price is $ 925.23 on Iberia Price is $ 915.16 on American Airlines Price is $ 892.95 on Delta Price is $ 892.75 on Icelandair Price is $ 877.74 on Iberia Price is $ 868.1 on Delta Price is $ 836.06 on Virgin Atlantic Price is $ 781.66 on Air Canada Price is $ 739.51 on Air Canada Price is $ 729.06 on Virgin Atlantic Price is $ 696.31 on Air Canada Price is $ 601.66 on Air Canada Price is $ 593.9 on Air Canada Price is $ 592.26 on Air Canada Price is $ 591.86 on Air Canada Price is $ 589.26 on United

Cheap SEA to LGW Flights

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

London

$444.26

$679.10

$726.49

$994.96

Interesting Facts About Flights from Seattle to London (SEA to LGW)

Question : Do travelers from Seattle typically stay in London for very long?
Answer : Travelers from SEA to LGW stay about two weeks on average.

Question : Do prices fluctuate more for this route than others?
Answer : Flight prices are fluctuating a lot more for this route than the majority of routes from the United States, as they're ranging anywhere from $600 to $4,020. Prices tend to be lower the further out you book.

Question : Interested in traveling in the next 30 days and want to get the lowest fare?
Answer : As of Jun 19th, the cheapest day to fly from Seattle to London is Jul 20th. Tickets are currently being sold for $696, which is 52% below the average price for this route.

Question : What is the cheapest round-trip ticket you can get to London?
Answer : Virgin Atlantic is offering the best deal at $600. Better snatch it up quickly because prices range all the way up to $4,020 over the next three months.

Question : Can you cut down on flight costs by changing the day of the week you travel to London?
Answer : Monday is your lowest-cost day to fly in the month of July. Having flexibility in your travel plans means you can save more, so be sure to plan ahead when possible.