LHR to SEA (London to Seattle) Flights

Last Minute Flights from LHR to SEA

Best airfare and ticket deals for LHR to SEA flights are based on recent deals found by Expedia.com customers within the past 7 days.

OriginDestinationTravel DatesFlights From*
LHRSeattleMay 4 to May 11$845
*Prices include taxes and fees

Cheapest LHR to SEA Flights

Best airfare and ticket deals for LHR to SEA flights are based on recent deals found by Expedia.com customers within the past 7 days.

OriginDestinationTravel DatesFlights From*
LHRSeattleOctober 24 to October 31$543
LHRSeattleOctober 24 to October 31$567
LHRSeattleNovember 5 to November 18$615
LHREverettMay 15 to May 22$862
*Prices include taxes and fees
LHR to SEA Flight Details
Origin airport
Heathrow
Origin airport IATA code
LHR
Destination airport
Seattle - Tacoma Intl.
Destination airport IATA code
SEA
Distance
4786 mi

Frequently asked questions

Which airlines with flights from LHR to Seattle - Tacoma International Airport allow free cancellation due to COVID-19?
Just enter your preferred dates and destination, then click the big green “Find the best flight deals” button. Once the results are displayed, check the “No change fee” box directly under the “Flexible change policies” filter. Before you book your LHR to SEA seats, carefully read the airline’s COVID-19 related policies so you’ve got the full details on what can and can’t be changed.
What airlines fly direct from London Heathrow to Sea-Tac Airport?
If you’d prefer to get your journey underway pronto, fly with Virgin Atlantic (VS). It operates 30 nonstop services from LHR to Seattle, WA Airport (SEA-Seattle - Tacoma Intl.) a month. American Airlines (AA) will also carry you away to Seattle, WA Airport (SEA-Seattle - Tacoma Intl.) without any time-wasting stopovers. Browse the deals on its 30 monthly flights that are nonstop.
How many flights are there from LHR to SEA?
Roughly 33 per day. If you’re in a big hurry to head to Seattle, see if you can score a good last-minute deal from London Airport (LHR-Heathrow) to Seattle, WA Airport (SEA-Seattle - Tacoma Intl.) and then lock it in straight away!
How long does it take to fly from London Airport (LHR-Heathrow) to Seattle, WA Airport (SEA-Seattle - Tacoma Intl.)?
It takes on average 14 hours and 41 minutes to get from London Airport (LHR-Heathrow) to Seattle, WA Airport (SEA-Seattle - Tacoma Intl.). Take advantage of the in-flight entertainment system, catch up on work or simply sleep the lengthy journey away.
What is the flight distance from London Airport (LHR-Heathrow) to Seattle, WA Airport (SEA-Seattle - Tacoma Intl.)?
You’ll cover around 4800 miles (7700 km) on the route from London Airport (LHR-Heathrow) to Seattle, WA Airport (SEA-Seattle - Tacoma Intl.). From a hoodie to an eye mask, think about what you’ll need to take on board to make your long-haul journey comfortable.
How many morning flights are there from LHR to SEA?
With about 96 morning flights per week from LHR to SEA to take your pick of, you’ll be jumping out of bed and jetting away in no time at all.
  • American Airlines (AA) offers 26 weekly flights jetting off before noon. The earliest one you can catch is 9:15AM.
  • Virgin Atlantic (VS) is another great option to consider. It operates 21 morning flights, with the earliest departing at 10:00AM.
  • Fly before noon with United Airlines (UA) and you’ll have 14 flights each week to pick from. 10:00AM is the earliest departure time from LHR to SEA.
How many afternoon flights are there from LHR to SEA?
If the words “early mornings” just aren’t in your vocabulary, hop aboard one of the 135 weekly afternoon and evening flights from LHR to SEA.
  • Grab a fare with Virgin Atlantic (VS), which has 41 flights every week that jet off after noon. 1:00PM is the earliest of those flights.
  • United Airlines (UA) provides 21 afternoon and evening flights a week. The first departs at 12:15PM.
  • One more great choice is British Airways (BA). It operates 17 afternoon and evening flights every week from 12:20PM onward.
What is the earliest departure time out of London to Seattle?
The earliest flight leaves LHR at 6:20AM and lands at 9:00PM at SEA. Be sure to give yourself plenty of time in the morning to get to your gate.
What is the latest departure time out of London to Seattle?
The last flight leaves the runway at LHR at 10:15PM and arrives at SEA at 12:25AM. You’ll have plenty of time to get ready for this journey.
What is the average price from London to Seattle?
Round-trip flights from LHR to SEA start from around $543. Book soon and score a great deal. This price was available on Flights.com within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

London to Seattle Flights

Whether it’s for an obligation or the sake of your sanity, sometimes you need to get away. Maybe you need flights from London to Seattle to attend your cousin’s wedding, to pitch a business idea to your boss, or perhaps simply to treat yourself to a mini vacation. Regardless of the reasons behind packing your bags and needing to find the cheapest flights from LHR to SEA, we’ve got you covered here at Flights.com.

We present you with some of the hottest deals on airfare so stop that Google flights search. We want you to spend less on your flight from London to Seattle, so you can spend more during your getaway. With Flights.com, you’ll find it simple to land airline tickets with itineraries matching your travel schedule. What’s more, we provide you with all the information you need to confidently make reservations on your family, business, or personal trip.