Cheap Flights to Seattle from £257 in 2025

Q: How long is the flight to Seattle?

The average flight time to Seattle is 10 hours and 7 minutes. We've calculated this based on journeys from London.

Q: How many airports are there in Seattle?

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Paine Field.

Q: Which airlines offer direct flights to Seattle?

KLM, Virgin Atlantic, Delta, Air France, Aer Lingus, Alaska Airlines, American Airlines and Finnair all fly direct to Seattle.

Q: When is the cheapest time to fly to Seattle?

The cheapest month to fly to Seattle is usually September.

Q: How can I find the best flight deal to Seattle?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

Q: Can I get a direct flight to Seattle?

Yes – you can fly direct to Seattle / Tacoma International Airport and the average flight time is 10 hours and 7 minutes.

Q: How much are return flights to Seattle?

The best price we found for a return flight to Seattle is £365. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Q: Which is the cheapest airport in Seattle?

The cheapest airport near Seattle is Seattle / Tacoma International – which is 12.1 miles away from the centre of Seattle. We've found flights into this airport from £365 .

Q: Which upcoming date is cheapest to fly to Seattle on?

After crunching the numbers on our flight calendar, we found that the cheapest date to fly to Seattle is Saturday, 27 September 2025 .

Q: When is the best time to book flights to Seattle?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.

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Flight deals Cheapest month Alternative airports Other top airlines FAQs Route info Tips and advice

Flight deals to Seattle

Looking for a cheap last-minute deal or the best return flight to Seattle? Find the biggest savings on one-way and return tickets right here.

Seattle.£365 per passenger.Departing Sat, 27 Sep, returning Wed, 1 Oct.Return flight with Norse Atlantic Airways (UK) and Icelandair.Outbound indirect flight with Norse Atlantic Airways (UK), departs from London Gatwick on Sat, 27 Sep, arriving in Seattle / Tacoma International.Inbound indirect flight with Icelandair, departs from Seattle / Tacoma International on Wed, 1 Oct, arriving in London Gatwick.Price includes taxes and charges.From £365, select.

Seattle.£370 per passenger.Departing Wed, 13 May, returning Wed, 20 May.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from London City on Wed, 13 May, arriving in Seattle / Tacoma International.Inbound indirect flight with Lufthansa, departs from Seattle / Tacoma International on Wed, 20 May, arriving in London City.Price includes taxes and charges.From £370, select.

Seattle.£373 per passenger.Departing Sat, 6 Sep, returning Sun, 21 Sep.Return flight with Norse Atlantic Airways (UK) and Icelandair.Outbound indirect flight with Norse Atlantic Airways (UK), departs from London Gatwick on Sat, 6 Sep, arriving in Seattle / Tacoma International.Inbound indirect flight with Icelandair, departs from Seattle / Tacoma International on Sun, 21 Sep, arriving in London Gatwick.Price includes taxes and charges.From £373, select.

Seattle.£374 per passenger.Departing Fri, 3 Oct, returning Sat, 11 Oct.Return flight with Norwegian Air Sweden and Icelandair.Outbound indirect flight with Norwegian Air Sweden, departs from London Gatwick on Fri, 3 Oct, arriving in Seattle / Tacoma International.Inbound indirect flight with Icelandair, departs from Seattle / Tacoma International on Sat, 11 Oct, arriving in London Gatwick.Price includes taxes and charges.From £374, select.

Seattle.£380 per passenger.Departing Fri, 24 Oct, returning Mon, 3 Nov.Return flight with Air France.Outbound direct flight with Air France departs from London Heathrow on Fri, 24 Oct, arriving in Seattle / Tacoma International.Inbound direct flight with Air France departs from Seattle / Tacoma International on Mon, 3 Nov, arriving in London Heathrow.Price includes taxes and charges.From £380, select.

Seattle.£388 per passenger.Departing Sat, 17 Jan, returning Sat, 17 Jan.Return flight with Lufthansa and SWISS.Outbound indirect flight with Lufthansa, departs from London Heathrow on Sat, 17 Jan, arriving in Seattle / Tacoma International.Inbound indirect flight with SWISS, departs from Seattle / Tacoma International on Sat, 17 Jan, arriving in London Heathrow.Price includes taxes and charges.From £388, select.

Seattle.£388 per passenger.Departing Sat, 15 Nov, returning Sat, 15 Nov.Return flight with Lufthansa and SWISS.Outbound indirect flight with Lufthansa, departs from London Heathrow on Sat, 15 Nov, arriving in Seattle / Tacoma International.Inbound indirect flight with SWISS, departs from Seattle / Tacoma International on Sat, 15 Nov, arriving in London Heathrow.Price includes taxes and charges.From £388, select.

Seattle.£388 per passenger.Departing Sat, 30 Aug, returning Sun, 7 Sep.Return flight with Norse Atlantic Airways (UK) and Icelandair.Outbound indirect flight with Norse Atlantic Airways (UK), departs from London Gatwick on Sat, 30 Aug, arriving in Seattle / Tacoma International.Inbound indirect flight with Icelandair, departs from Seattle / Tacoma International on Sun, 7 Sep, arriving in London Heathrow.Price includes taxes and charges.From £388, select.

Find the cheapest time to fly to Seattle

Flexible on travel dates? Find the cheapest month – or even day – to fly to Seattle.

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Airports in Seattle

Compare routes to Seattle below. You may find an airport to fly into that's cheaper, faster, or easier.

Direct flights to Seattle

Frequently asked questions

How long is the flight to Seattle?

How many airports are there in Seattle?

Which airlines offer direct flights to Seattle?

When is the cheapest time to fly to Seattle?

How can I find the best flight deal to Seattle?

Can I get a direct flight to Seattle?

How much are return flights to Seattle?

Which is the cheapest airport in Seattle?

Which upcoming date is cheapest to fly to Seattle on?

When is the best time to book flights to Seattle?

What’s the weather like in Seattle?

Which is the cheapest airline to fly to Seattle with?

Flying to Seattle

The things to know before you go.

Cheapest flight found	£365
Cheapest month to fly	September
Average flight time	10 hrs, 9 mins
Most popular airline	KLM
Average flights per week	141

Discover Seattle

How to find cheap flights to Seattle

The cheapest price we've found for a one-way flight to Seattle is £257. A round-trip fare right now is £365.
Find the best deals for your getaway by creating a Price Alert. As soon as Seattle ticket prices drop, we'll send you a notification.
It's generally recommended to book about six months ahead of your travel date. This is when you're most likely to get the best price on tickets to Seattle.
Select 'Add nearby airports' when searching for a better chance of securing cheap Seattle flights. Doing this will give you more choices for where you begin and end your journey, along with different fares.
Taking an indirect route can help you save, so search for Seattle plane tickets that come with a stop. Once your results show up, select the 'Stops' filter to browse your options.

Best time to go to Seattle

May is generally the cheapest month to jump on a flight to Seattle.
If you can be flexible with your dates, take advantage of the 'Whole month' tool. You'll be able to find the cheapest month, and even day of the year, for Seattle flights.
Plan your stay for July if you'd like to be there when it's busy. This is the most popular month for flights to Seattle, but also when fares can be more expensive.
The quietest time of the year to go is May. Lock in your Seattle plane tickets then and enjoy sightseeing at a more relaxed pace.
With averages of between 12ºC (54ºF) and 28ºC (82ºF), August is when Seattle is at its warmest. Schedule your visit around your preferred weather conditions to get the most out of your trip.
February is when temperatures hit their lowest, between -1ºC (30ºF) and 11ºC (52ºF).

Travelling to Seattle: what you need to know

Seattle-Tacoma International Airport (SEA) and Lake Union Sea Plane Base Airport (LKE) are where you can jet into for your Seattle flight.
Fly to the city sooner with a direct Alaska Airlines flight to Seattle.
Find the right stay to complete your travel plans. Check out these accommodation options after locking in your Seattle plane tickets:

Getting to central Seattle from Seattle-Tacoma International Airport (SEA)

SEA, the city's main airport, is located about 14 miles from central Seattle.
After touching down from your flight to Seattle, reaching the centre by car will take around 20 minutes.
The ride on public transport takes roughly 55 minutes.
Slip into bed soon after your Seattle flight. Put your bags down at any of these hotels near Seattle-Tacoma International Airport and you'll be fast asleep before you know it:

Seattle highlights

Hop off your flight to Seattle and make a beeline for some of this city's most popular attractions:
- Greyhound: Bus Station
- LMN Architects
- Boeing Radiation Effects Lab

Complete your trip with a Seattle car hire

Pick from a range of car rentals in Seattle and explore without limits. With one simple search, compare rates and find the best price after locking in your hotel and cheap flight to Seattle.