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

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Lowest round trip fares by airline from Seattle and London

Cheapest prices ($399 One Way, $642 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, TW3 3JS
The price is $45 per night from Sep 11 to Sep 12
Stay at this 3-star business-friendly hotel in Hounslow. Enjoy free WiFi, breakfast, and onsite parking. Our guests praise the helpful staff in our reviews. ...
3.5/5 Good! (1,001 reviews)
Basic stay
"We were there for a concert at Wembley, it was easy to find however, it was basic. The only disappointment was that there were no spare pillows in the room so my partner woke up with a very sore neck and shoulder in which now requires pysiotherapy on"

Reviewed on Aug 15, 2022

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, WC1X 8BU
The price is $98 per night from Aug 22 to Aug 23
Stay at this business-friendly hotel in London. Enjoy free WiFi, breakfast, and a 24-hour front desk. Our guests praise the WiFi and the helpful staff in our ...
4/5 Very Good! (1,262 reviews)
"Good budget hotel for the great location"

Reviewed on Aug 15, 2022

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, UB3 5AL
The price is $72 per night from Sep 4 to Sep 5
Stay at this 3-star business-friendly hotel in Hayes. Enjoy free WiFi, breakfast, and onsite parking. Our guests praise the helpful staff and the clean rooms ...
3.9/5 Very Good! (1,360 reviews)
"close to airport"

Reviewed on Aug 14, 2022

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 Aug 23
Latest Flight Departure Date Aug 23
Popular Airlines Virgin Atlantic

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.