S$558 Cheap Flights from Seattle to London

View S$558 flight on Sat, 3 May,2025Opens in a new window

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Cheap Flights from Seattle to London (SEA-LON)

Prices were available within the past 7 days and start at S$558 for one-way flights and S$841 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Virgin Atlantic
Tue, 8 Apr - Wed, 23 Apr
SEA
Seattle
LHR
London
S$841 Return, found 6 days ago
S$841
Return
found 6 days ago
Select Virgin Atlantic flight, departing Tue, 8 Apr from Seattle to London, returning Wed, 23 Apr, priced at S$841 found 6 days ago
Delta
Tue, 8 Apr - Wed, 23 Apr
SEA
Seattle
LHR
London
S$841 Return, found 6 days ago
S$841
Return
found 6 days ago
Select Delta flight, departing Tue, 8 Apr from Seattle to London, returning Wed, 23 Apr, priced at S$841 found 6 days ago
Virgin Atlantic
Tue, 8 Apr - Wed, 23 Apr
SEA
Seattle
LHR
London
S$852 Return, found 6 days ago
S$852
Return
found 6 days ago
Select Virgin Atlantic flight, departing Tue, 8 Apr from Seattle to London, returning Wed, 23 Apr, priced at S$852 found 6 days ago
Virgin Atlantic
Tue, 8 Apr - Wed, 23 Apr
SEA
Seattle
LHR
London
S$860 Return, found 6 days ago
S$860
Return
found 6 days ago
Select Virgin Atlantic flight, departing Tue, 8 Apr from Seattle to London, returning Wed, 23 Apr, priced at S$860 found 6 days ago
United
Tue, 8 Apr - Wed, 23 Apr
SEA
Seattle
LHR
London
S$875 Return, found 6 days ago
S$875
Return
found 6 days ago
Select United flight, departing Tue, 8 Apr from Seattle to London, returning Wed, 23 Apr, priced at S$875 found 6 days ago
British Airways
Tue, 8 Apr - Wed, 23 Apr
SEA
Seattle
LHR
London
S$889 Return, found 6 days ago
S$889
Return
found 6 days ago
Select British Airways flight, departing Tue, 8 Apr from Seattle to London, returning Wed, 23 Apr, priced at S$889 found 6 days ago
Air France
Tue, 8 Apr - Wed, 23 Apr
SEA
Seattle
LHR
London
S$911 Return, found 6 days ago
S$911
Return
found 6 days ago
Select Air France flight, departing Tue, 8 Apr from Seattle to London, returning Wed, 23 Apr, priced at S$911 found 6 days ago
KLM
Tue, 8 Apr - Wed, 23 Apr
SEA
Seattle
LHR
London
S$912 Return, found 6 days ago
S$912
Return
found 6 days ago
Select KLM flight, departing Tue, 8 Apr from Seattle to London, returning Wed, 23 Apr, priced at S$912 found 6 days ago
Air Canada
Tue, 8 Apr - Wed, 23 Apr
SEA
Seattle
LHR
London
S$919 Return, found 6 days ago
S$919
Return
found 6 days ago
Select Air Canada flight, departing Tue, 8 Apr from Seattle to London, returning Wed, 23 Apr, priced at S$919 found 6 days ago
Lufthansa
Tue, 8 Apr - Wed, 23 Apr
SEA
Seattle
LHR
London
S$920 Return, found 6 days ago
S$920
Return
found 6 days ago
Select Lufthansa flight, departing Tue, 8 Apr from Seattle to London, returning Wed, 23 Apr, priced at S$920 found 6 days ago
Seattle to London route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Heathrow
Return price
S$841
Distance
7657 km

Flights from Seattle to England

When looking for plane tickets from Seattle to England, the ease and convenience of using Expedia simply can’t be beat. With tons of departure points and flights options from the top airline carriers, Expedia gives you the widest array of cheap flights to England. Look for SEA to LON airfare with the assurance that you have the largest online travel agency working for you.

Expedia lets you search across the largest number of airlines and England flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your Seattle England flight!

Browse through dozens of options and rest assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Seattle to England trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.

Combine your England flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from Seattle to England with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!

Frequently asked questions

How much is a flight from Sea-Tac Airport to London (LON-All Airports)?
Round-trip journeys from Seattle - Tacoma Intl. Airport (SEA) to London (LON-All Airports) start from S$841. This is based on fares offered within the last 7 days on Expedia for flights departing within the next year — book now so you don’t miss out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from SEA to London (LON-All Airports)?
Most flights can be cancelled online, but each air carrier has its own terms and conditions. If you do decide to cancel your flight, visit our Customer Service Portal and follow the instructions.
How do I find cheap flights from SEA to London (LON-All Airports) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for SEA to London (LON-All Airports) flights, you’ll see a “no change fees” filter for you to select.
How many hours is the flight from Seattle - Tacoma Intl. Airport (SEA) to London (LON-All Airports)?
Make the 14 hours and 48 minutes between SEA and London (LON-All Airports) as comfortable as you can. Bring the essentials, like a water bottle, toothbrush and toiletries, and simply enjoy the flight!
How far is the flight from SEA to London (LON-All Airports)?
With around 7,700 kilometres separating SEA and London (LON-All Airports), your flight will be a long one. Pack wisely and make your time on board comfortable. Simple things like an eye mask and a good travel pillow can make a massive difference.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to London (LON-All Airports)?
You have lots of options when flying from SEA to London (LON-All Airports). Lock in your fare with one of these popular airlines:

  • Virgin Atlantic - (VS) with 30 monthly flights
  • American Airlines - (AA) with 30 monthly flights
  • British Airways - (BA) with 30 monthly flights
  • Delta Air Lines - (DL) with 17 monthly flights

Are Sea-Tac Airport to London (LON-All Airports) flight tickets cheaper when they're purchased at the last minute?
Booking last minute from SEA to London (LON-All Airports) can be hit-or-miss. It is possible to score a bargain, but you could also miss out entirely! If you’d prefer to play it safe and start planning early on, Expedia compares flight deals up to 12 months in advance. Just remember that not all airlines publish their prices that far in advance. Our suggestion? Check back often as updates are made regularly.
*Available to Expedia members.