Flights tailored to your budget
- Flights from Seattle to London
Flight prices from Seattle Lake Union to London Heathrow
There’s no fixed price — fares between Seattle and London can vary a lot by day or time.
Choose a date to explore the best fares now.
The lowest fares are often found with some flexibility in travel dates. If your plans are flexible, you’ll have a better chance of finding cheap flights.
Exploring all airports near Seattle and London
Checking all the airports available in the area can give you more departure and arrival options for your trip.
- Airports in Seattle: 2 different airports operate in Seattle - Boeing Field, Lake Union.
- Airports in London: London is served by 6 airports - City Airport, Gatwick, Heathrow, Luton, Southend, Stansted.
Looking at expected traffic to the airport can help avoid surprises on departure day. On busy routes, flying from a quieter airport might also save you money.
Compare flights from Seattle Lake Union to London Heathrow with advanced filters
Find your ideal flight using Jetcost. Select whether you want nonstop or connecting flights, round-trip or one-way, and filter by airline, price, or booking site.
Other popular destinations
Looking for alternatives in United Kingdom? Travelers also liked: Edinburgh, Glasgow, London, Manchester, Newquay.
If you have a preferred time to leave or arrive, filters can help you show only the matching flights. You can also filter by your favorite airline and see only those deals.
Frequently asked questions about flights from Seattle Lake Union to London Heathrow.
How much does an airline ticket from Seattle Lake Union to London Heathrow cost?
How far is Seattle from London?
What are the airports in London?
What are the airports in Seattle?
What are the most popular cities in United Kingdom?
When should I book a flight from Seattle to London?
What is the cheapest month to fly from Seattle to London?
What is the most expensive month to fly from Seattle to London?
What is the best day of the week to fly from Seattle to London?
- Flights Newcastle - London Heathrow
- Flights Glasgow - London Heathrow
- Flights Edinburgh - London Heathrow
- Flights Aberdeen - London Heathrow
- Flights Manchester - London Heathrow
- Flights Belfast - London Heathrow
- Flights Leeds - London Heathrow
- Flights Darlington - London Heathrow
- Flights Newquay - London Heathrow
- Flights Cardiff - London Heathrow
- Flights Liverpool - London Heathrow
- Flights Londonderry - London Heathrow
- Flights Birmingham - London Heathrow
- Flights Dundee - London Heathrow
- Flights Belfast City - London Heathrow
- Flights Cochin - London Heathrow
- Flights New Delhi - London Heathrow
- Flights Lahore - London Heathrow
- Flights Islamabad - London Heathrow
- Flights Nairobi - London Heathrow
- Flights Stockholm Arlanda - London Heathrow
- Flights Mumbai - London Heathrow
- Flights Sylhet - London Heathrow
- Flights Los Angeles - London Heathrow
- Flights Malta - London Heathrow
- Flights Ahmedabad - London Heathrow
- Flights Dhaka - London Heathrow
- Flights New York JFK - London Heathrow
- Flights Lisbon - London Heathrow
- Flights Vancouver - London Heathrow
- Flights to London
- Flights to Manchester
- Flights to Edinburgh
- Flights to Glasgow
- Flights to Birmingham
- Flights to Aberdeen
- Flights to Belfast
- Flights to Newcastle
- Flights to Bristol
- Flights to Southampton
- Flights to Leeds
- Flights to Jersey
- Flights to Liverpool
- Flights to Guernsey
- Flights to Isle of Man
