Find Cheap Flights from London (LON) to Seattle (SEA) from £418

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Selected flight deals from London to Seattle

The lowest prices found within the past 7 days from London to Seattle were £438 for one-way flights and £418 for return flights, for the period specified. Prices and availability are subject to change. Additional terms apply.

Cheap Flights from London to Seattle & Flight Information
Origin airport IATA code
Destination airport IATA code
Return price

Best Day to Book Flight from London to Seattle

Seattle SEA Flight Information

Traveling From
Origin Airport IATA Code
Traveling To
Destination Airport IATA Code
Number of Airlines Serving
Available Airlines
American Airlines, Virgin Atlantic, Iberia, British Airways, JetBlue Airways, Icelandair, WestJet, Lufthansa, Aer Lingus
7702 km
Direct Flight Time
9 45
Flight Price

Frequently asked questions

Is it possible to fly from London to Seattle right now?
Our Covid-19 Travel Advisor provides up-to-date information regarding any health advisories or flying restrictions if you’re thinking about flying from London to Seattle in the near future.
Is there a direct flight between London and Seattle?
One hassle-free flight. One fantastic holiday. Pick from popular airlines, including American Airlines and Virgin Atlantic, that fly straight from London (LHR-Heathrow) to SEA.
How long is a direct flight from London to Seattle?
You can expect the trip of 4,800 miles to last between 9 hours and 45 minutes and 9 hours and 51 minutes. Once you’ve landed the perfect deal on your direct London to Seattle airfare, a world of possibilities awaits.
Can I cancel my flight booking to Seattle due to COVID-19?
As an ebookers customer, you may be eligible for a no-change-fee cancellation for your Seattle booking and a credit that you can use for another flight. Your account is the place to go to see if your reservation has this flexibility. If you have any more questions, our Customer Service Portal is here to help.
What are the best airports for London to Seattle flights?
If you’re curious about how to venture from London to Seattle, here are the routes with the most services:

  • Heathrow Airport (LHR) to SEA - 269 flights per week
  • London City Airport (LCY) to Sea-Tac Airport - 14 flights per week
  • LGW to SEA - 7 flights per week

What are some of the most popular airlines flying from London to Seattle?
Friendly service, food quality and reliability are some factors that set apart an airline from another. While you’ll find various carriers offering flights from London to Seattle, these are highly-recommended:

  • Virgin Atlantic with 321 flights every month.
  • American Airlines with 251 flights every month.
  • United Airlines with 160 flights every month.
  • British Airways with 112 flights every month.
  • Delta with 65 flights every month.
  • Lufthansa with 60 flights every month.

How many flights are there from London to Seattle?
A world of fun and surprises awaits you in Seattle. Start your amazing adventure now by reserving a seat on one of the 38 flights on offer daily from London to Seattle.
Is it possible to fly on an airline that employs social distancing and other COVID-19 measures?
Getting to your destination comfortably and confidently is as important as having a great holiday once you get there. Take the stress out of flying by choosing Alaska Airlines, Delta or Southwest Airlines. They all employ social distancing rules and have COVID-19 measures in place, which may be capped capacity flights and keeping the middle seat empty.
What are the cheapest days to book a flight?
This is one is easy to remember: Ticket Thursdays. We found that tickets booked on a Thursday resulted in the best deal on average in 2021. However, Friday can be the worst day to purchase plane tickets, as it was the day with the highest average ticket price based on flight demand on ebookers in 2021.
What are the cheapest days to fly?
When analysing flight demand on ebookers in 2021, Friday turned out to be the cheapest day to fly, with Tuesday as a close second. That’s definitely something to consider when booking your next trip! Thinking of traveling mid-week? It turns out that Wednesdays generally had the most expensive airline tickets, so keep this in mind when planning for your next trip.*According to flight demand on from January to December 2021. Savings are subject to change and may vary depending on selections made.

Fly from London to Seattle with ebookers

Cheap flights from London to Seattle 

Our advanced search tools and comprehensive filters help you find a flight that fits your budget. To search for cheap flights, just enter your travel dates and sort your results by price. With all available tickets listed lowest price first, it’s easy to select the one that’s easiest on your wallet.  

To find the cheapest flights from London to Seattle, you can also travel outside peak season. The more flexible you can be on travel dates, the easier it is to find those cheap flight tickets. We know, for example, that the cheapest time to travel between London to Seattle is October. In the current list of deals available, prices start at £418 and can rise to £748 for return flights.  

Find the best flight from London to Seattle  

Every day between London and Seattle, 25 flights from 12 airlines jet back and forth. And with ebookers, you can book tickets for any one of those flights. If you book a direct flight with American Airlines, KLM, Alaska Airlines, Aer Lingus, Air France, Delta Air Lines, Finnair, Iberia, Aeromexico, Virgin Atlantic, Singapore Airlines, British Airways, you’ll arrive safely in your destination in around 9hours. If you can think of a quicker way to cover the 7702 km between null and null, let us know! 

Flights from London to Seattle — a great choice on great deals 

We only need a little information to give you a lot of choice. Just tell us when you’re planning your family holiday, long weekend, luxury getaway or quick business trip, and we’ll do the rest. And to keep your choice-making easy, we’ve given you plenty of ways to narrow down your search. Choose one-way, roundtrip or multi city flights, select your preferred airline, your time of arrival and departure and cabin class using the filters.  

Once you’ve told us what you want, we’ll show you what’s on offer. All you need to do is take your pick and start packing.  

Book your flights with ebookers 

We want the experience of booking your flight from London to Seattle to be as simple as possible. That’s why we designed our search and filter options to make your life easy. Whether you are travelling on business or for pleasure, ebookers has you covered. 

When you’re ready to book, our service is always fast and transparent. We know plans change, so we have a range of flexible booking options. Choose between refundable bookings and flights with no charges should you need to rearrange and travel stress-free. 

Need a car after flight from London to Seattle

Place to stay after flight from London to Seattle

Hyatt Regency Seattle

Hyatt Regency Seattle

4 out of 5
808 Howell St, Seattle, WA
Stay at this 4-star business-friendly hotel in Seattle. Enjoy free WiFi, 2 restaurants and breakfast. Our guests praise the breakfast and the restaurant in their ...
9.4/10 Exceptional! (4,633 reviews)

Reviewed on 19 Sep 2023

Hyatt Regency Seattle
DoubleTree by Hilton Seattle Airport

DoubleTree by Hilton Seattle Airport

4 out of 5
18740 International Boulevard, SeaTac, WA
Stay at this 4-star business-friendly hotel in SeaTac. Enjoy free WiFi, 2 restaurants and 2 bars/lounges. Our guests praise the restaurant in their reviews. ...
7.4/10 Good! (1,132 reviews)
"the balcony was peacefull"

Reviewed on 15 Sep 2023

DoubleTree by Hilton Seattle Airport
citizenM Seattle Pioneer Square

citizenM Seattle Pioneer Square

4 out of 5
60 Yesler Way, Seattle, WA
Stay at this 4-star hotel in Seattle. Enjoy breakfast, a 24-hour front desk and a flat-screen TV. Our guests praise the breakfast and the helpful staff in their ...
9/10 Wonderful! (921 reviews)
"It was a great weekend stay Beautiful location"

Reviewed on 19 Sep 2023

citizenM Seattle Pioneer Square

Save an average of 15% on thousands of hotels when you're signed in

Mediterranean Inn

Mediterranean Inn

3 out of 5
425 Queen Anne Ave N, Seattle, WA
Stay at this 3-star business-friendly hotel in Seattle. Enjoy free WiFi, a rooftop terrace and a 24-hour fitness centre. Our guests praise the convenient parking ...
9.2/10 Wonderful! (3,946 reviews)
"Staff was great and welcoming, loved the rooftop and the room"

Reviewed on 19 Sep 2023

Mediterranean Inn
Coast Gateway Hotel

Coast Gateway Hotel

3.5 out of 5
18415 International Blvd, SeaTac, WA
Stay at this 3.5-star business-friendly hotel in SeaTac. Enjoy free breakfast, free WiFi and free parking. Our guests praise the breakfast and the bar in their ...
9.2/10 Wonderful! (4,006 reviews)
"Sleep over for early flight in the morning"

Reviewed on 21 Sep 2023

Coast Gateway Hotel
Country Inn & Suites by Radisson, Seattle-Tacoma International Airport, WA

Country Inn & Suites by Radisson, Seattle-Tacoma International Airport, WA

3 out of 5
3100 South 192nd Street, SeaTac, WA
Stay at this 3-star business-friendly hotel in SeaTac. Enjoy free breakfast, free WiFi and free parking. Our guests praise the convenient parking and the spacious ...
8.8/10 Excellent! (3,893 reviews)
"This was a perfect hotel to stay at before a cruise. We were able to get a shuttle from the airport and then back where we connected with light rail to explore downtown. Then we booked the shuttle from the hotel to the cruise port. Excellent breakfast choices, friendly staff!"

Reviewed on 19 Sep 2023

Country Inn & Suites by Radisson, Seattle-Tacoma International Airport, WA
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Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

*Savings based on all holiday package bookings with Flight + Hotel on from January 2017 to December 2017, as compared to the price of the same components booked separately. Savings will vary based on origin/destination, length of trip, stay dates and selected travel supplier(s). Savings not available on all packages. For Free Flight or 100% Off Flight deals, package savings is greater than or equal to the current cost of one component, when both are priced separately.

Fare, taxes & fees: Fares were found on and are updated daily. They include all taxes and fees, except baggage fees.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a £25.00 / 45.00 Euro service fee charged by ebookers, plus any airline fare and tax increase that may be applicable.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.