Popular in | July |
---|---|
Cheapest in | January |
Round-trip from | £474 |
One-way from | £315 |
Users have found that flying from London Heathrow Airport to Seattle on a Saturday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.
Find a great deal and save up to 24% by booking at least 49 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from London Heathrow Airport to Seattle within the next two weeks, with the cheapest ticket starting at £559.
Due to multiple factors, expect to potentially pay more when booking in July. For low rates, February can be a great choice for travel to Seattle. Flights to Seattle from London Heathrow Airport in February are about £532 on average during February, but can be found for as low as £346.
It’s typically best to fly out from London Heathrow Airport to Seattle in the evening. Doing so could potentially save you 7% on the flight price compared to flying in the afternoon, which is usually more expensive.
One of the most popular airlines travelling from London Heathrow Airport to Seattle is American Airlines. Flights from American Airlines travelling this route typically cost £716.40 RT. This price is typically 71% cheaper than other airlines that offer London Heathrow Airport to Seattle flights. When booking this route, the cheapest RT price found was £323. The most popular departure airport in London Heathrow Airport when flying to Seattle is London Heathrow Airport. The most popular airport to fly into when visiting Seattle is Seattle/Tacoma Intl Airport. When flying from London Heathrow Airport to Seattle, American Airlines flights are 7% more popular than any other airline flying that same route.
If you’re travelling from London Heathrow Airport to Seattle, one of the more common airlines travelling that route is United Airlines. Flights on this route from United Airlines typically cost £770.60 RT, a price that is 64% cheaper than the average London Heathrow Airport to Seattle flight. The cheapest flight found was £560 RT. When travelling from London Heathrow Airport to Seattle on United Airlines, the most popular airport to depart from is London Heathrow Airport and the most popular airport to arrive at is Seattle/Tacoma Intl Airport. When flying from London Heathrow Airport to Seattle, United Airlines flights are 4% more popular than any other airline flying that same route.
Fly from
Fly to
Budget
£515 - £543
Route
Depart
Return
Price
London HeathrowSeattle/Tacoma Intl
LHR - SEA
LHRSEA
London Heathrow
Tue 14/5
Nonstop9h 55m
Seattle/Tacoma Intl
Mon 27/5
1 stop15h 20m
London HeathrowSeattle/Tacoma Intl
LHR - SEA
LHRSEA
London Heathrow
Sat 1/6
1 stop21h 55m
Seattle/Tacoma Intl
Mon 1/7
1 stop28h 55m
London HeathrowSeattle/Tacoma Intl
LHR - SEA
LHRSEA
London Heathrow
Wed 8/5
Nonstop9h 45m
Seattle/Tacoma Intl
Tue 14/5
2 stops21h 35m
London HeathrowSeattle/Tacoma Intl
LHR - SEA
LHRSEA
London Heathrow
Thu 9/5
2 stops19h 57m
Seattle/Tacoma Intl
Wed 22/5
1 stop12h 40m
London HeathrowSeattle/Tacoma Intl
LHR - SEA
LHRSEA
London Heathrow
Thu 9/5
1 stop15h 26m
Seattle/Tacoma Intl
Wed 22/5
1 stop14h 40m
London HeathrowSeattle/Tacoma Intl
LHR - SEA
LHRSEA
London Heathrow
Thu 9/5
1 stop14h 45m
Seattle/Tacoma Intl
Wed 22/5
1 stop12h 30m
London HeathrowSeattle/Tacoma Intl
LHR - SEA
LHRSEA
London Heathrow
Thu 9/5
1 stop12h 55m
Seattle/Tacoma Intl
Wed 22/5
Nonstop9h 40m
London HeathrowSeattle/Tacoma Intl
LHR - SEA
LHRSEA
London Heathrow
Tue 2/7
2 stops20h 20m
Seattle/Tacoma Intl
Wed 2/10
1 stop13h 00m
London HeathrowSeattle/Tacoma Intl
LHR - SEA
LHRSEA
London Heathrow
Wed 12/6
1 stop17h 42m
Seattle/Tacoma Intl
Wed 19/6
1 stop20h 20m
Currently, December is the cheapest month in which you can book a flight from London Heathrow Airport to Seattle (average of £594). Flying from London Heathrow Airport to Seattle in July is currently the most expensive (average of £802). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
January
£488
February
£480
March
£506
April
£520
May
£555
June
£612
July
£640
August
£609
September
£547
October
£525
November
£480
December
£474
SEA Temperature | 5 - 19 °C |
---|
Food
Boarding
Crew
Comfort
Entertainment
Overall
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Food
Boarding
Crew
Comfort
Entertainment
Overall
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Food
Boarding
Crew
Comfort
Entertainment
Overall
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Food
Boarding
Crew
Comfort
Entertainment
Overall
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Food
Boarding
Crew
Comfort
Entertainment
Overall
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Food
Boarding
Crew
Comfort
Entertainment
Overall
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
1%of flight departures | Early morningMidnight to 6 am |
---|---|
59%of flight departures | Morning6 am to noon |
40%of flight departures | AfternoonNoon to 6 pm |
0%of flight departures | Evening6 pm to midnight |
Monday | 20daily flights |
---|---|
Tuesday | 24daily flights |
Wednesday | 20daily flights |
Thursday | 20daily flights |
Friday | 20daily flights |
Saturday | 25daily flights |
Sunday | 20daily flights |
Deals for Heathrow to Seattle flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Cheapflights helps you find that perfect flight to Seattle from Heathrow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Need flexible booking options for your flight to Seattle from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
Yes! Start tracking prices for Heathrow to Seattle flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.