Go to homepage lastminute.com logoGo to homepage lastminute.com logo
Search form is loading

Flights to London from Seattle

Cheap flights from Seattle to London from £523. Seattle (United States) - London (United Kingdom) return flights from £703. From 25/10/2026 (Sunday) - 31/10/2026 (Saturday). Check for the dates with the lowest prices and find the cheapest rates.

Round-trip flights from Seattle to London

Cheapest round-trip flights from Seattle to London

Explore all offers

Direct flights from Seattle to London

Book direct flights from Seattle to London for a smooth journey.

Explore all offers

British Airways flights from Seattle to London

Fly with British Airways from Seattle to London for less.

Explore all offers

Flights to London with top airlines

Seattle to London flight information

DEPARTING FROM:
SEA - All airports
ARRIVING IN:
LON - All airports, London Heathrow Airport, Gatwick
AIRLINES:
Alaska Airlines, British Airways, Delta Air Lines, more
AVG FLIGHT TIME:
11h 31m

More information about flights to London from Seattle

Read moreRead less

FAQs Seattle to London flights

FAQs

  • Can I combine different airlines on the same trip?

    Of course. We offer you the possibility of booking with more than 400 airlines so that you can find the cheapest fare or the most convenient combination: outbound flight with one airline and return flight with another.

  • Is lastminute.com a trustworthy travel brand?

    In 1998, lastminute.com was one of the first online travel agencies. Currently, we are selling over 380,000 flights per year – and working hard on bringing travellers wherever they want to go.

  • What options are there if I have to change my flight?

    lastminute.com offers flexibility services for purchase at the time of your booking. These services entitle you to change or cancel your flights without handling fee.*

  • I am afraid to lose my luggage, every time I fly. What can I do?

    lastminute.com offers a range of baggage protection services, so that you are covered in case your luggage is delayed or lost.**

  • How long does a flight take between Seattle and London?

    The flight from Seattle to London has a duration of 11h 31m.

  • What are the cheapest flights from Seattle to London?

    The cheapest one-way flight costs £523 flying with British Airways and the cheapest return flight costs £703 with Virgin Atlantic Airways.

  • How many airports are there in the city of Seattle?

    Seattle has 1 airport: SEA - All airports.

  • How many airports does London have?

    There are 3 airports in London: LON - All airports, London Heathrow Airport, Gatwick

  • Which London airport is the most central?

    The most central airport is LON - All airports, 9.1km.

  • Which airlines have flights from Seattle to London?

    There are 4 airlines with flights from Seattle to London; Those that offer lower prices are Virgin Atlantic Airways (£523), British Airways (£523).

  • Schedules of the first and last flight from Seattle to London

    The first flight from Seattle to London is at 06:45 and the last flight departs at 15:35.