Seattle-Tacoma International Airport SEA to London Heathrow Airport LHR flight with American Airlines

The best way to find a cheap flight ticket from Seattle-Tacoma International Airport to London Heathrow Airport is to book your journey as far in advance as possible and to avoid traveling at rush hour.

The average ticket from Seattle-Tacoma International Airport to London Heathrow Airport will cost around $1548 if you buy it on the day, but the cheapest tickets can be found for only $536.

Of the 100 flights that leave Seattle-Tacoma International Airport for London Heathrow Airport onFri, Mar 20, 4 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.

On Fri, Mar 20 the direct flights cover the 7703 km distance in an average of 10 h 3 m but if you time it right, some flights will get you there in just 9 h 30 m .

On Fri, Mar 20 the longest flights will take 11 h 30 m and usually involve a change or two along the way, but you might be able to save a few pennies if you’re on a budget.