Cheap flights from Seattle (SEA) to London (LON)

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Lowest round trip fares by airline from Seattle and London

Cheapest prices ($356 One Way, $632 Round Trip) found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Great Deals On Cheap Hotels in London

ibis budget London Hounslow

ibis budget London Hounslow

3 out of 5
20-28 Staines Road, Hounslow, England
The price is $42 per night from Apr 7 to Apr 8
$42
per night
Apr 7 - Apr 8
Stay at this 3-star hotel in Hounslow. Enjoy free WiFi, breakfast, and onsite parking. Our guests praise the helpful staff and the clean rooms in our reviews. ...
7/10 Good! (1,005 reviews)
"Best costumer service around."

Reviewed on Mar 25, 2024

ibis budget London Hounslow
Point A Hotel London Kings Cross – St Pancras

Point A Hotel London Kings Cross – St Pancras

2.5 out of 5
324 Gray's Inn Road, London, England
The price is $100 per night from Apr 14 to Apr 15
$100
per night
Apr 14 - Apr 15
Stay at this hotel in London. Enjoy free WiFi, breakfast, and a 24-hour front desk. Our guests praise the breakfast and the helpful staff in our reviews. Popular ...
8.2/10 Very Good! (540 reviews)
"Nice Hotel, room was small but modern and very clean. Reception staff were excellent and made you feel welcome."

Reviewed on Mar 26, 2024

Point A Hotel London Kings Cross – St Pancras
ibis London Heathrow Airport

ibis London Heathrow Airport

3 out of 5
112 Bath Road, Middlesex, Hayes, England
The price is $57 per night from Apr 21 to Apr 22
$57
per night
Apr 21 - Apr 22
Stay at this business-friendly hotel in Hayes. Enjoy free WiFi, breakfast, and onsite parking. Our guests praise the breakfast and the restaurant in our reviews. ...
7.6/10 Good! (1,820 reviews)
"More information about facilities at the hotel when checking in would have been helpful. Our room view was a brick wall - but suppose that can’t be helped sometimes"

Reviewed on Mar 26, 2024

ibis London Heathrow Airport
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

Fly From Seattle to London

Origin
Seattle
Destination
London
Number of Daily Flights
20
Earliest Flight Departure Date
Apr 4
Latest Flight Departure Date
Apr 4
Popular Airlines
Air France

Cheap flights from Seattle to London

Seattle - Tacoma International Airport (SEA) is located between Seattle and Tacoma Washington. It is accessible via State Route 518 off I-95 N, I-5 S, Route 509 S and I-405.

Flight times are usually 10 hours to London Heathrow Airport (LHR). If you’re driving from LHR, exit onto the M4/M25 or A30. Public transport and taxi services from LHR are available outside all five terminals.

LHR is located to the West of London, with fast rail connections via the Heathrow Express taking as little as 15 minutes into central London. The M25 freeway also connects with London's Luton, Gatwick and Stansted airports.

Attractions and Tips

London is built along the River Thames and is home to over 8 million people. The Tower of London, Windsor Castle, Buckingham Palace and the London Bridge tour offer you a glimpse into the British Monarchy and the city’s rich history.

Over 20 museums preserve a diverse set of relics, from motor vehicles at the London Motor Museum to WWII artifacts at the Churchill War Rooms. You can explore London on the metro ("tube"), an open-top version of the city's famous red buses or in a black cab.

London is eight hours ahead of Seattle. Buy prepaid travel cards online to navigate your way around London quickly and easily.

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.