Flights tailored to your budget
- Flights from Seattle to London
How to get the best price from Seattle Lake Union to London Heathrow?
Depending on when you travel and how far in advance you book, fares between Seattle and London can differ a lot.
Pick a travel date to see today’s available fares.
Search engines like Jetcost can highlight price changes in just seconds. For example, some users find better prices by flying on one day of the week over another — try several searches to spot the cheapest day.
Planning flights between Seattle and London? Don’t forget the airport options
Especially when flying to medium or large cities, it's worth checking all possible airport combinations before booking.
- Airports in Seattle: 2 airports are listed in Seattle - Boeing Field, Lake Union.
- Airports in London: London features 6 airports - City Airport, Gatwick, Heathrow, Luton, Southend, Stansted.
Check for differences in transport costs to and from each airport — they affect your total spend. Choosing the right airport can make a real difference in price and timing.
Plan your journey from Seattle Lake Union to London Heathrow with ease
Use Jetcost to tailor your search — direct or connecting flights, round-trip or one-way, filtered by airline, price, travel time, or agency.
Other popular destinations
Exploring options in United Kingdom? These cities are trending: Edinburgh, Glasgow, London, Manchester, Newquay.
Flight availability can change quickly — refresh the results if you’ve been away from the page for a while.
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 Seattle Lake Union - Qingdao
- Flights Seattle Lake Union - Columbus
- Flights Seattle Lake Union - Vancouver Harbour Flight
- Flights Halifax - London Heathrow
- Flights Sofia - London Heathrow
- Flights Munich - London Heathrow
- Flights Oslo Sandefjord - London Heathrow
- Flights San Diego McClellan Palomar - London Heathrow
- Flights Oslo - London Heathrow
- Flights Hannover - London Heathrow
- Flights Detroit Metropolitan - London Heathrow
- Flights Havana - London Heathrow
- Flights Jaipur - London Heathrow
- Flights Wichita - London Heathrow
- Flights Cochin - London Heathrow
- Flights Detroit - London Heathrow
- Flights Paris Orly - 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
