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.
Which airports near Seattle or London offer flights?
In many cases, using a nearby airport can improve your chances of finding direct flights or better rates.
- Airports in Seattle: 2 airports are active - Boeing Field, Lake Union.
- Airports in London: 6 options available in London - City Airport, Gatwick, Heathrow, Luton, Southend, Stansted.
Secondary airports can offer faster travel thanks to shorter lines and quicker boarding times than major ones.
Find the best flight from Seattle Lake Union to London Heathrow
With Jetcost, you can filter results by flight time, airline, price range, and layovers. Choose direct or connecting flights, round-trip or one-way, and compare offers from Ryanair, Easyjet, British Airways, and more.
Other popular destinations
Searching for flights to United Kingdom? Travelers also looked at: Edinburgh, Glasgow, London, Manchester, Newquay.
Use filters to exclude options that don’t match your budget or travel preferences and personalize your search for Seattle Lake Union – London Heathrow flights.
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 Dublin - London Heathrow
- Flights Cork - London Heathrow
- Flights Shannon - London Heathrow
- Flights Knock - London Heathrow
- Flights Seattle Lake Union - Vancouver Harbour Flight
- Flights Seattle Lake Union - Qingdao
- Flights Seattle Lake Union - London Heathrow
- Flights Seattle Lake Union - Columbus
- Flights Seattle Lake Union - Belize City
- Flights Seattle Lake Union - Seoul Gimpo
- Flights Seattle Lake Union - Detroit Metropolitan
- Flights Seattle Lake Union - Seoul Incheon
- Flights Seattle Lake Union - Edmonton International
- Flights Seattle Lake Union - Accra
- Flights Seattle Lake Union - Buffalo
- Flights Seattle Lake Union - Shanghai Pudong
- Flights Seattle Lake Union - Calgary
- Flights Seattle Lake Union - Rome Fiumicino
- Flights Paphos - London Heathrow
- Flights Larnaca - London Heathrow
- Flights Tirana - London Heathrow
- Flights Belgrade - London Heathrow
- Flights Sofia - London Heathrow
- Flights Kalamata - London Heathrow
- Flights Paris Charles de Gaulle - London Heathrow
- Flights Malta - London Heathrow
- Flights Amsterdam - London Heathrow
- Flights Karachi - London Heathrow
- Flights Bucharest Otopeni - London Heathrow
- Flights Eindhoven - London Heathrow
- Flights Bari - London Heathrow
- Flights Paris Orly - London Heathrow
- Flights Valencia - 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
