Cheap flights from Seattle to London Heathrow Airport from $275
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Flight information for Seattle to London Heathrow Airport
(SEA to LHR)
Find info about flight duration, direct flights, and airports for your flight from Seattle to London Heathrow Airport
Best Price Found | $275 |
|---|---|
Fastest flight time | 8h 15m |
Direct flights | Every day |
How to get the cheapest flight ticket from Seattle to London Heathrow Airport
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 Seattle to London Heathrow Airport?
February. The cheapest time of year to fly to London Heathrow Airport from Seattle is February. Most expensive is June
What is the cheapest airline that flies to London Heathrow Airport from Seattle?
Icelandair. Aer Lingus, Air Canada, and Finnair are the most popular carriers operating from Seattle to London Heathrow Airport
How far in advance should you book Seattle to London Heathrow Airport flights?
50 days before. The cheapest time to buy a flight from Seattle to London Heathrow Airport is approximately 50 days to departure
How many flights depart from Seattle to London Heathrow Airport on average per day?
As of September 2023, 19 flights take off from Seattle and land in London Heathrow Airport each day. The most common flight departure time for this route is 6:00PM, with 52% of daily flights taking off in the evening.
How many flights depart from Seattle to London Heathrow Airport on average per week?
135 flights are operational weekly from Seattle to London Heathrow Airport as of September 2023. The most popular departure day for this route is Sunday, with 15% of flights per week taking off on this day.
What cabin class options are available on Seattle to London Heathrow Airport flights?
There are 2 cabin classes available to choose from on Seattle to London Heathrow Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
If you are looking to fly from Seattle to London, you are most likely going to fly from Seattle/Tacoma Intl Airport to London Heathrow Airport, the most popular airports on that route. The least expensive flight option from Seattle to London will typically be SEA — LHR during the month of September with an average price of $493 RT.
Easily compare round-trip flights from Seattle to London Heathrow Airport
Below you can see the best fares for your round-trip flight route over the next six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Seattle to London Heathrow Airport by changing tabs
Find the cheapest one-way flights from Seattle to London Heathrow Airport
If you're looking for one-way flights from Seattle to London Heathrow Airport, view some of our deals below provided by Aer Lingus, Icelandair and Lufthansa
Search last-minute flights to London Heathrow Airport from Seattle
Find and compare round-trip flight prices for your last-minute flight from Seattle to London Heathrow Airport
Best airlines flying from Seattle to London Heathrow Airport
Compare and see reviews for airlines that fly from Seattle to London Heathrow Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $402 | Free Cancellation | Rating 6.7 1,054 reviews | |||
| PriceFrom $493 | Free Cancellation | Rating 7.5 119 reviews | |||
| PriceFrom $525 | Free Cancellation | Rating 7.1 391 reviews | |||
| PriceFrom $578 | Free Cancellation | Rating 7.7 368 reviews | |||
| PriceFrom $623 | Free Cancellation | Rating 6.9 555 reviews | |||
| PriceFrom $624 | Free Cancellation | Rating 7.8 1,565 reviews | |||
| PriceFrom $640 | Free Cancellation | Rating 7.1 2,890 reviews | |||
| PriceFrom $647 | Free Cancellation | Rating 7.6 329 reviews | |||
| PriceFrom $654 | Free Cancellation | Rating 6.4 2,315 reviews | |||
| PriceFrom $656 | Free Cancellation | Rating 7.9 3,001 reviews |
Alaska Airlines Flights From Seattle to London Heathrow Airport
Alaska Airlines is one of the most popular airlines flying from Seattle to London Heathrow Airport, operating 7 flights/week on average for this route. A good Alaska Airlines flight deal for Seattle to London Heathrow Airport starts from $656 round-trip, up to an average price of $1,005. Our users have rated Alaska Airlines at 7.9/10.
Delta Flights From Seattle to London Heathrow Airport
Another popular option for Seattle to London Heathrow Airport flights is Delta (7.8/10, 1,565 ratings). Delta flies from Seattle to London Heathrow Airport around 14 times per week, with deals starting from $624 round-trip and rising to an average price of around $1,056.
Icelandair flights from Seattle to London Heathrow Airport
Our best Icelandair deals on Seattle to London Heathrow Airport flight tickets
Virgin Atlantic flights from Seattle to London Heathrow Airport
Our best Virgin Atlantic deals on Seattle to London Heathrow Airport flight tickets
How far is Seattle/Tacoma Intl to London Heathrow by plane?
The straight-line distance from Seattle/Tacoma Intl to London Heathrow is 4774.1 mi. 9h 15m is a normal flight duration for this route.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to London Heathrow Airport?
Prices for flights from Seattle/Tacoma Intl Airport to London Heathrow Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to London Heathrow Airport?
The number of operators available for flights from Seattle/Tacoma Intl Airport to London Heathrow Airport is 14 as of September 2023.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to London Heathrow 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 Seattle/Tacoma Intl Airport to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents you'll need for your trip to London Heathrow 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 London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
Alternative routes for Seattle to London Heathrow Airport
Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Similar Seattle to London Heathrow Airport flights
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Why use momondo?
Why should I use momondo to find a flight deal from Seattle to London?
Finding the right flight to London from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.
Can I find flights from Seattle to London with flexible booking policies on momondo?
Flights from Seattle to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Seattle to London?
Once you have performed a search for Seattle to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Seattle to London right now. Can momondo alert me if prices change?
Price alerts on flights to London from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.