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The cheapest flights to Heathrow found within the past 7 days were $660 round trip and $476 one way. Prices and availability subject to change. Additional terms may apply.
|Carrier||Flight||Depart SEA||Arrive LHR||Sat |
|BA48||06:20 pm||11:40 am||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare|
|AA156||07:35 pm||00:50 pm||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare|
For any present London Airport (LHR-Heathrow) travel advice and quarantine requirements, go to the Covid-19 Travel Advisor. Check before you arrange your flight, so you don't get caught up en route.Are there direct flights from SEA to London Heathrow?
If you're hoping to journey from Sea-Tac Airport to London Heathrow as swiftly as possible, you'll be glad to know multiple airlines offer direct flights. Choose your preferred seat with British Airways or Virgin Atlantic.If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to London Heathrow, please visit our Customer Service Portal.How long is the flight from SEA to LHR?
Taking approximately 9 hours and 24 minutes all up, getting from Sea-Tac Airport to Heathrow Airport is no walk in the park. On such a long flight, it's a good idea to get up and stretch your legs often.What is the flight distance from Sea-Tac Airport to LHR?
The flight distance from SEA to Heathrow Airport is 4,785 mi. Apart from cramming your devices with more must-see TV shows, it'll be wise to carry some noise-canceling earbuds and a pullover as well.What airlines fly from Seattle - Tacoma Intl. Airport (SEA) to London Airport (LHR-Heathrow)?
If you'd prefer to fly direct from SEA to Heathrow Airport (LHR), you've got quite a few options. Below are the top airlines that service this route:
From the moment you enter the departure terminal to when you leave the arrivals terminal, if you're flying with British Airways, Virgin Atlantic or Aer Lingus you can be sure that COVID-19 measures and social distancing rules have been adhered to. Many airlines have introduced capped capacity flights and keeping the middle seat empty.
|Traveling From||Seattle - Tacoma Intl.|
|Shortest Flight Time||25 hours 15 mins|
|Earliest Departure Time||6:20PM BST|
|Latest Departure Time||7:35PM BST|
|Lowest Flight Price||$660|
Flight path for flights from Seattle-Tacoma International Airport to London Heathrow Airport
Airlines & Aircraft Used on SEA to LHR Flight Routes
With 20 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 $660 and $805. 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 $476. 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, January 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.