SEA to LHR (Seattle to London) Flights

Last Minute Flights from SEA to LHR

Price found within the past 7 days for the specified period. Click for updated prices.

OriginDestinationTravel DatesFlights From*
SEALondonAugust 2 to August 10$1,007
*Prices include taxes and fees

Cheapest SEA to LHR Flights

Price found within the past 7 days for the specified period. Click for updated prices.

OriginDestinationTravel DatesFlights From*
SEALondonDecember 1 to December 10$480
SEALondonDecember 1 to December 10$480
SEALondonJanuary 8 to January 22$484
PAELondonSeptember 8 to September 17$657
*Prices include taxes and fees
SEA to LHR Flight Details
Origin airport
Seattle - Tacoma Intl.
Origin airport IATA code
SEA
Destination airport
Heathrow
Destination airport IATA code
LHR
Distance
4786 mi

Frequently asked questions

What airlines fly direct from Sea-Tac Airport to London Heathrow?
Avoid time-wasting stopovers and take a trip straight from SEA to Heathrow Airport (LHR) with British Airways (BA). This carrier offers 60 nonstop services on this route per month. You can also fly on one of the 30 nonstop monthly flights provided by Virgin Atlantic (VS). No getting off the plane? No stress.
How many flights are there from SEA to LHR?
About 4 flights operate each day from Seattle, WA (SEA-Seattle - Tacoma Intl.) to London (LHR-Heathrow). Fasten your safety belt because your plane to Hounslow is ready to jet off.
How long does it take to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to London (LHR-Heathrow)?
The Seattle, WA (SEA-Seattle - Tacoma Intl.) to London (LHR-Heathrow) route takes approximately 9 hours and 24 minutes. A well-positioned seat is a must on long-haul flights, so look up the plane’s layout before selecting your spot.
What is the flight distance from Seattle, WA (SEA-Seattle - Tacoma Intl.) to London (LHR-Heathrow)?
From Seattle, WA (SEA-Seattle - Tacoma Intl.) to London (LHR-Heathrow), you’ll be traversing a distance of 4,800 miles (7,700 1). Choose who you travel with wisely. Comfort, food and entertainment are among the things any good long-haul carrier should do well.
How many afternoon flights are there from SEA to LHR?
Nix the crazy early check in and select one of the 28 weekly afternoon and evening flights from SEA to LHR. Afternoon and evening services listed by British Airways (BA) take off from 1:30PM. Overall, this popular airline has 14 weekly flights with departures after midday.
What is the earliest departure time out of SeaTac to Hounslow?
The earliest flight of the day travels from SEA at 1:30PM and comes in to land at LHR at 10:50PM. You won’t need to get up too early to enjoy this trip.
What is the latest departure time out of SeaTac to Hounslow?
The latest flight departs SEA at 9:10PM and lands at 6:50AM at LHR. You’ll have ample time to prepare for this trip.
What is the average price from SeaTac to Hounslow?
You can find a return airfare from SEA to LHR from around $480. The best deals sell out quickly, so book as soon as you’ve decided on your travel dates. 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.

Seattle to London Flights

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

We present you with some of the most affordable deals on airfare, so stop that Google flights search. We want you to spend less on your flight from Seattle to London, 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.