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The cheapest flights to Heathrow found within the past 7 days were $496 round trip and $281 one way. Prices and availability subject to change. Additional terms may apply.
|Carrier||Flight||Depart SEA||Arrive LHR||Sat |
|VS106||02:10 pm||07:35 am||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare|
|BA48||06:35 pm||11:50 am||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare|
|AA156||07:49 pm||01:10 pm||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare|
|DL20||07:05 pm||00:50 pm|
|Check Fare||Check Fare|
|Traveling From||Seattle - Tacoma Intl.|
|Shortest Flight Time||25 hours 15 mins|
|Earliest Departure Time||2:10PM GMT|
|Latest Departure Time||7:49PM GMT|
|Lowest Flight Price||$496|
Flight path for flights from Seattle-Tacoma International Airport to London Heathrow Airport
Airlines & Aircraft Used on SEA to LHR Flight Routes
With 3 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times.
Airfares to London LHR from Seattle SEA currently cost between $496 and $588. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply.
If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from Seattle SEA to London LHR on Travelocity starting at $281. Prices and availability subject to change. Additional terms may apply.
Get to London faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to LHR from SEA to take around 25 hour(s) 15 min(s).
Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to LHR from SEA. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.
If you’re flexible about when you travel, February is usually the cheapest month to fly from Seattle SEA to London LHR. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first.
Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to LHR from SEA have this option.
We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving.
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