£371 Cheap Flights to SeaTac

View £371 flight on Mon, 2 Nov 2026Opens in a new window

Popular airlines to SeaTac

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 25% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to SeaTac

Prices were available within the past 7 days and start at £371 for one-way flights and £482 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.

Icelandair
Wed, 7 Oct - Wed, 21 Oct
LHR
London
SEA
Seattle
£482 Return, found 4 hours ago
£482
Return
found 4 hours ago
Select Icelandair flight, departing Wed, 7 Oct from London to Seattle, returning Wed, 21 Oct, priced at £482 found 4 hours ago
KLM
Tue, 13 Oct - Tue, 27 Oct
LHR
London
SEA
Seattle
£550 Return, found 4 days ago
£550
Return
found 4 days ago
Select KLM flight, departing Tue, 13 Oct from London to Seattle, returning Tue, 27 Oct, priced at £550 found 4 days ago
Delta
Tue, 20 Oct - Tue, 3 Nov
LHR
London
SEA
Seattle
£550 Return, found 4 days ago
£550
Return
found 4 days ago
Select Delta flight, departing Tue, 20 Oct from London to Seattle, returning Tue, 3 Nov, priced at £550 found 4 days ago
American Airlines
Wed, 23 Sept - Wed, 18 Nov
LGW
London
SEA
Seattle
£560 Return, found 2 days ago
£560
Return
found 2 days ago
Select American Airlines flight, departing Wed, 23 Sept from London to Seattle, returning Wed, 18 Nov, priced at £560 found 2 days ago
Alaska Airlines
Thu, 22 Oct - Thu, 5 Nov
LHR
London
SEA
Seattle
£563 Return, found 3 days ago
£563
Return
found 3 days ago
Select Alaska Airlines flight, departing Thu, 22 Oct from London to Seattle, returning Thu, 5 Nov, priced at £563 found 3 days ago

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

April is typically the cheapest month to fly

From £126 - £230 per traveller.

Frequently asked questions

What is the name of SeaTac's airport?
Seattle - Tacoma Intl. Airport (SEA) is the most frequently utilized airport in SeaTac.
How far is SEA from central SeaTac?
If you're staying in the centre of SeaTac, you'll be there within moments after flying into SEA. The terminal is only 0.48 kms (0.30 miles) from downtown.
What airport is best to fly into SeaTac?
Travellers going to SeaTac can choose to touchdown at two major airports. Seattle - Tacoma Intl. Airport (SEA) is 0.48 kms (0.30 miles) away from the downtown streets. PAE is 48 kms (30 miles) away.
How many airlines fly to SeaTac?
There are a total of 38 air carriers connecting SeaTac with 124 airports globally.
Which airlines fly to SeaTac?
Alaska Airlines, Delta and American Airlines are the most frequent fliers to SeaTac. The majority of flights arrive here from Los Angeles, with Alaska Airlines having the most services on this route.
How many nonstop flights are there to SeaTac?
Flying to a new place is much more straightforward when there aren't any lengthy stopovers. If you're off to SeaTac, the good news is that there are around 3,464 nonstop flights every week.
Where are the most popular flights to SeaTac departing from?
Flights to SeaTac from Los Angeles, Phoenix and Portland airports are highly sought after.
How long is the flight to SeaTac Airport?
If you're going to SeaTac from Los Angeles, you'll have a flight time of 3 hours. Those departing from Phoenix can expect to be travelling for 3 hours and 17 minutes. From Portland it's approximately 1 hour and 5 minutes away.
How to book the cheapest flight to SeaTac?
We all know those jet-setters who somehow manage to nab incredibly cheap airfares wherever they go. Would you like to know how to do it for your SeaTac holiday? Don't wait until the very last minute to lock in your flight. Also, look around online and compare your options. If your destination has multiple airports, you may be able to score a fantastic deal by flying into one a little further out. And finally, don't forget that the early bird catches the worm. Know what a typical airfare costs and be ready to buy your ticket as soon as you spot an unbeatable bargain. The sweetest deals don't last long.
Do you have any tips for my flight to SeaTac?
If you're not prepared, travelling can be a real challenge. But there's no need to hit the panic button just yet. Follow these useful tips and enjoy a comfortable start to your getaway in SeaTac. What to pack in your hand luggage:

  • A plane ride can be a great experience if you pack the right stuff. Firstly, you'll want a few basic toiletries, such as lip balm and hand cream, a clean set of clothes and a good read. Secondly, make room in your hand luggage for your mobile phone, a charger, your medications and perhaps a quality neck pillow as well. Lastly, and most importantly, be sure to take your passport, travel documents and some cash.

Do not pack the following items in your hand luggage:

  • Check carefully that you don't have sharp or pointed objects hiding in the bottom of your carry-on luggage. Other prohibited items include flammable or explosive products, such as fuel and matches, and liquids and gels in containers with a capacity of more than 3.4 ounces (100 millilitres).

What to wear on a flight:

  • You'll want to go for comfort over style. Prepare for temperature changes by dressing in layers, and opt for flat, closed-toe shoes like sneakers.
  • Deep vein thrombosis (DVT) is a risk on long-distance flights. It's the result of blood clots forming due to poor circulation and inactivity, so do some gentle foot and leg exercises in your seat and consider wearing compression tights or socks.

How to get through airport security fast when flying to SeaTac?
The secret is to be well organised before you reach the airport security gate. That way, you'll be hopping onto that plane to SeaTac in no time at all. Follow these tips and get your trip off to a terrific start:

  • Have your travel documents and passport within easy reach. They're the first things you'll be asked to show at airport security.
  • Time to strip down. Well kind of. Your belt, jacket, keys and other small items, like your earphones, will be required to go through the X-ray machine. Make the whole process easier by removing them as it gets closer to your turn.
  • For just a few minutes, you'll need to unplug from the digital world. Your tablet, phone and any other electronics will need to go through the scanner.
  • Any liquids or gels, such as toothpaste or perfume, that you want to bring on board must be no greater than 3.4 ounces (100 millilitres). They must also all fit inside a quart-size (one litre), clear zip-close bag.
  • The right choice of footwear can save you several precious minutes. Hiking boots are often required to be removed and X-rayed separately. Lightweight sneakers are usually not.
  • Airlines won't allow any sharp items or pocket knives to come on board with you. If you need to bring these kinds of items, pack them safely in your checked baggage.

Book with confidence

Expedia flights to SeaTac

Searching for cheap flights to SeaTac? No travel company presents more choices than Expedia if you're looking to compare flights to SeaTac. 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 SeaTac.

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 SeaTac 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 SeaTac 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.

Expedia flights to SeaTac

Travel information

Destination airport
Seattle - Tacoma Intl.
Destination airport IATA code
SEA
Destination city name
Seattle
Return price
£139

Trending flights to SeaTac

Prices were available within the past 7 days and start at £371 for one-way flights and £482 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.

Icelandair
Wed, 7 Oct - Wed, 21 Oct
LHR
London
SEA
Seattle
£482 Return, found 4 hours ago
£482
Return
found 4 hours ago
Select Icelandair flight, departing Wed, 7 Oct from London to Seattle, returning Wed, 21 Oct, priced at £482 found 4 hours ago

Explore a world of travel with Expedia

*Available to Expedia members.