Cheap flights from London to Seattle from £223
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Seattle departing on 22/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Below you can see the best fares for your return flight route over the next six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from London to Seattle by changing tabs
Find the cheapest one-way flights from London to Seattle
If you're looking for one-way flights from London to Seattle, view some of our deals below provided by British Airways, Finnair and Iberia
Search last-minute flights to Seattle from London
Find and compare return flight prices for your last-minute flight from London to Seattle
Best airlines flying from London to Seattle
Compare and see reviews for airlines that fly from London to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £258 | Free Cancellation | Rating 8.0 10,778 reviews | |||
| PriceFrom £343 | Free Cancellation | Rating 6.8 6,866 reviews | |||
| PriceFrom £395 | Free Cancellation | Rating 7.6 738 reviews | |||
| PriceFrom £401 | Free Cancellation | Rating 7.1 1,330 reviews | |||
| PriceFrom £433 | Free Cancellation | Rating 7.0 6,924 reviews | |||
| PriceFrom £437 | Free Cancellation | Rating 7.3 14,667 reviews | |||
| PriceFrom £443 | Free Cancellation | Rating 7.0 7,689 reviews | |||
| PriceFrom £448 | Free Cancellation | Rating 7.8 1,592 reviews | |||
| PriceFrom £449 | Free Cancellation | Rating 7.4 11,030 reviews | |||
| PriceFrom £451 | Free Cancellation | Rating 7.7 1,378 reviews |
Delta Flights From London to Seattle
Delta flight deals from London to Seattle start from £323 round-trip. Over the 14 Delta flights for this route in a normal week, average airfare is usually £712 round-trip - but some users have found much cheaper deals with momondo.
KLM Flights From London to Seattle
KLM (7.8/10 from 1,592 reviews) operates around 14 flights from London to Seattle in any given week. The average KLM airfare for this route is around £780, with deals from around £560 rare but found on momondo. Referenced prices are for round-trip London to Seattle flight searches in the last 72 hours.
Iberia flights from London to Seattle
Our best Iberia deals on London to Seattle flight tickets
Air Canada flights from London to Seattle
Our best Air Canada deals on London to Seattle flight tickets
How to get the cheapest flight ticket from London to Seattle
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly from London to Seattle?
November. The cheapest time of year to fly to Seattle from London is November. The most expensive is July.
What is the cheapest day to depart London for Seattle?
Wednesday. The cheapest day of the week is usually Wednesday. The most expensive is usually Sunday.
When is the cheapest time to fly from London to Seattle?
In the evening. London to Seattle flights are approximately 8% more expensive in the afternoon than in the evening
What is the cheapest airline that flies to Seattle from London?
SWISS. Air Canada, British Airways, and Delta are the most popular carriers operating from London to Seattle
What is the cheapest London to Seattle flight route?
London Heathrow - Seattle/Tacoma Intl. Fly from London Heathrow to Seattle/Tacoma Intl for the best London - Seattle flight prices
How far in advance should you book London to Seattle flights?
43 days before. The cheapest time to buy a flight from London to Seattle is approximately 43 days to departure
How many flights depart from London to Seattle on average per day?
The number of flights available between London and Seattle is 21 per day as of May 2024. The most frequent departure time is 15:00, with 52% of daily flights leaving at midday.
How many flights depart from London to Seattle on average per week?
The number of flights available between London and Seattle is 149 per week as of May 2024. The most frequent departure day is Saturday, with 17% of weekly flights leaving on this day.
What cabin class options are available on London to Seattle flights?
There are 2 cabin classes available to choose from on London to Seattle flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on London to Seattle flights?
No. A direct flight is the cheapest option for a flight between London to Seattle.
Cheap London to Seattle (LON to SEA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London to Seattle
Best price found | £223 |
|---|---|
Fastest flight time | 9h 45m |
Direct flights | Every day |
Airports in Seattle | 1 airport |
How far is London to Seattle/Tacoma Intl by plane?
A flight from London to Seattle/Tacoma Intl will travel around 4781.3 mi. By plane, this route typically takes 9h 45m.
When did momondo last update prices for flights from London to Seattle/Tacoma Intl Airport?
Prices for flights from London to Seattle/Tacoma Intl Airport are updated daily.
How many operators does momondo search for flights from London to Seattle/Tacoma Intl Airport?
As of May 2024, there are 14 operators available to choose from for flights from London to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from London to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
Why use momondo?
Why should I use momondo to find a flight deal from London to Seattle?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Seattle. momondo saves you time and could save you money on your trip.
Can I find flights from London to Seattle with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for London to Seattle flights to just show those with flexible booking policies.
How can momondo help me find flights from London to Seattle?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seattle from London.
I’m not ready to book a flight from London to Seattle right now. Can momondo alert me if prices change?
Yes. momondo can track prices for London to Seattle flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.