How to estimate the price of a flight from Seattle to London Heathrow?

It depends. Prices for flights from Seattle to London fluctuate based on several factors.

Select your dates to check current offers.

Checking fares across several nearby dates can help you see which days offer the best deals. Jetcost lets you track price changes and grab the best opportunities.

Flying from or to Seattle and London? Here are your airport options

Knowing your full list of nearby airports can make flight planning easier, especially when routes vary.

• Airports in Seattle: You have 2 departure options - Boeing Field, Lake Union.
• Airports in London: Arrivals into London are possible from 6 airports - City Airport, Gatwick, Heathrow, Luton, Southend, Stansted.

For families or those traveling with assistance, smaller airports can be easier to navigate. Cities served by multiple airports often allow for more flexible travel planning.

Filter and compare flights from Seattle to London Heathrow

Jetcost helps you manage complex searches with simple filters. Sort by airline, duration, number of stops, or even time windows for outbound and return flights.

Other popular destinations

Want more ideas for your trip to United Kingdom? Check these: Edinburgh, Glasgow, London, Manchester, Newquay.

Advanced filters help you skip long layovers or inconvenient times. The “airlines” filter is handy if you want to collect miles or prefer a certain onboard experience.