£441 Cheap Flights to Northwest Seattle

View £441 flight on Wed, 22 Oct 2025Opens in a new window

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Cheap round-trip flights to Northwest Seattle

Prices were available within the past 7 days and start at £441 for one-way flights and £408 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Wed, 27 Aug - Wed, 17 Sep
LHR
London
SEA
Seattle
£408 Return, found 4 hours ago
£408
Return
found 4 hours ago
Select Aer Lingus flight, departing Wed, 27 Aug from London to Seattle, returning Wed, 17 Sep, priced at £408 found 4 hours ago
Icelandair
Wed, 10 Sep - Tue, 30 Sep
LGW
London
SEA
Seattle
£433 Return, found 4 hours ago
£433
Return
found 4 hours ago
Select Icelandair flight, departing Wed, 10 Sep from London to Seattle, returning Tue, 30 Sep, priced at £433 found 4 hours ago
Air France
Fri, 24 Oct - Wed, 12 Nov
LHR
London
SEA
Seattle
£436 Return, found 2 days ago
£436
Return
found 2 days ago
Select Air France flight, departing Fri, 24 Oct from London to Seattle, returning Wed, 12 Nov, priced at £436 found 2 days ago
Scandinavian Airlines
Sat, 6 Sep - Fri, 12 Sep
LHR
London
SEA
Seattle
£448 Return, found 4 days ago
£448
Return
found 4 days ago
Select Scandinavian Airlines flight, departing Sat, 6 Sep from London to Seattle, returning Fri, 12 Sep, priced at £448 found 4 days ago
Lufthansa
Sun, 16 Nov - Sat, 22 Nov
LHR
London
SEA
Seattle
£470 Return, found 6 days ago
£470
Return
found 6 days ago
Select Lufthansa flight, departing Sun, 16 Nov from London to Seattle, returning Sat, 22 Nov, priced at £470 found 6 days ago

Find the cheapest month to fly from Columbus (CMH) to Seattle (SEA)

October is typically the cheapest month to fly

From £92 - £181 per traveller.

Graph displaying average flight prices per month

Expedia flights to Northwest Seattle

Searching for cheap flights to Northwest Seattle? No travel company presents more choices than Expedia if you're looking to compare flights to Northwest Seattle. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to Seattle. Expedia provides the cheapest flights to many destinations in Seattle and you may find even greater savings if you combine your flight with a hotel stay in Northwest Seattle.

Expedia is the largest online travel agency which means that Expedia have access to cheap flights. So make sure you check Expedia regularly for these bargain flights because the cheapest airline tickets sell out fast.

Expedia is not only free for everyone to use but it quick and easy to use. Find the lowest flight prices guaranteed and book directly through Expedia. Browse through hundreds of cheap flight offers to find the one that suits your budget by simply inputting your travel dates. Expedia will then find the cheapest flights to Northwest Seattle for that period and let you choose your preferred time and airline. If you need additional assistance, Expedia Customer Service representatives are available from 8am - 10pm Monday to Friday, and 9am - 10pm at weekends. Our capable staff will be able to help you with any questions regarding your Northwest Seattle flight, or other booking questions that may arise. When you book flights with Expedia you can rest assured that you have booked the best flight at the lowest price.

Frequently asked questions

How do I find cheap flights to Northwest Seattle that have flexible change policies?
By using our smart "No change fee" filter, that's how. All you have to do is enter your preferred dates and destination, click "Search," then check the box directly under the "Flexible change policies" subheading (it's on the left of your screen). Expedia makes it easy to find flexible, low-priced tickets to Northwest Seattle.
Which airlines fly to Northwest Seattle?
When it's time for a well-earned break, these top airlines will make journeying to Northwest Seattle a total breeze:

  • Kenmore Air - 243 flights to or near Northwest Seattle each month, including 243 flights to Boeing Field Airport (BFI) per month.
  • Sun Country Airlines - 4 flights to or near Northwest Seattle each month, including 4 flights to Boeing Field Airport (BFI) per month.

How can I find cheap tickets to Northwest Seattle?
A great strategy for finding cheap airfares is to be flexible with your travel dates. Start by searching for your flight to Northwest Seattle, then click on the "flexible dates" box for a list of prices for nearby days. Want another tip? Book ahead of time. To give you an idea of costs, £408 was the best price for a flight to Northwest Seattle in the last seven days.
How much is a flight to Northwest Seattle?
In the last seven days, return airfares to Northwest Seattle sold for as low as £408 and reached a maximum of £643. For one-way fares departing from London (LHR), the lowest price during this time was just £441.
What are the most popular airports to fly into in Northwest Seattle?
Book your flight to Boeing Field Airport (BFI) and sample the best that Northwest Seattle has to offer. As the region's main entry point, around 247 flights land here every month.
When is the cheapest time to fly to Northwest Seattle?
If you're not fixed on your travel dates to Northwest Seattle, depart early in the week. The cheapest day to take off is usually Tuesday, followed closely by Monday. Saturday is typically the costliest day, with a lot of people choosing to take off on the weekend.
How much is a plane ticket to Northwest Seattle?
In the last seven days, ticket prices to Northwest Seattle ranged from £408 to £643.
What months are the cheapest to book a flight to Northwest Seattle?
February is the most affordable month to reserve a seat for your Northwest Seattle adventure. Fares are at a premium during December, so avoid this time if you can.
Flights to Northwest Seattle information
Destination airport
Seattle - Tacoma Intl.
Destination airport IATA code
SEA
Destination city name
Seattle
Return price
£97

Trending flights to Northwest Seattle

Prices were available within the past 7 days and start at £441 for one-way flights and £408 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Wed, 27 Aug - Wed, 17 Sep
LHR
London
SEA
Seattle
£408 Return, found 4 hours ago
£408
Return
found 4 hours ago
Select Aer Lingus flight, departing Wed, 27 Aug from London to Seattle, returning Wed, 17 Sep, priced at £408 found 4 hours ago
*Available to Expedia members.