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Lowest round trip fares by airline from Seattle and London

Cheapest prices ($254 One Way, $452 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
3.0 out of 5.0

Located in Hounslow Heath, this hotel is 1.8 mi (2.9 km) from Twickenham Stadium and within 9 mi (15 km) of Royal Botanic Gardens, Kew and Hampton Court Palace. ...

Point A Hotel London Kings Cross – St Pancras
2.5 out of 5.0
1.8 out of 5 (4 reviews)

Located in London City Centre, this hotel is within 1 mi (2 km) of British Library and The British Museum. London Transport Museum and St. Paul's Cathedral are ...

Overall unpleasant rooms make this not recommendable to begin with: add in thieving housekeeping staff (cash we’d accidentally left behind was stolen from the room safe within 25 minutes of checkout) that do not seem to change the sheets between guests, plus hallways that reek like toilets, and that’s ...
ibis London Heathrow Airport
3.0 out of 5.0
4.0 out of 5 (6 reviews)

Located in Hillingdon, this hotel is 2.5 mi (4 km) from Stockley Park and within 6 mi (10 km) of Twickenham Stadium and Brunel University. Windsor Castle and ...

Overall a nice room but very small, bathroom lighting was very weak.

Flights Review

Jan 29, 2020

Plane was in rough shape but the service was terrific! Let's repeal the Jones Act so we can have carriers like Brit Air operatng on the US! United and other US carriers are just atrocious in comparison to most international air carriers.

Oct 24, 2018

This was legitimately the most pleasant flight I have ever taken. It was nine hours, but felt lke nothing. Huge shout out to the gentlemen station in the economy delight section

Jul 10, 2018

Great job

Jun 1, 2018

The seating in economy was very cramped. The seating is so restrictive that you can easily develop leg cramps because it’s so hard to stretch and reposition yourself. The flight crew were wonderful and attentive though.

Apr 12, 2018

I would have like to have a different seat. I checked in exactly 2hrs before hand and there were no window or aisle seat left.

Fly From Seattle to London

Number of Daily Flights5
Earliest Flight Departure DateAug 19
Latest Flight Departure DateAug 19
Popular AirlinesAer Lingus

Cheap flights from Seattle to London

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.