£405+ Cheap flights to Seattle

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/9. Fares are subject to change and may not be available on all flights or dates of travel.
— SEA
12 Jun — 19 Jun1
1 adult
1 adult, Economy, 0 bags

Flights to Seattle in 2026

Enter your travel dates to find the best prices.

Cheapest flights to Seattle
Explore the most affordable flight options available to Seattle. Find the lowest fares based on data from user searches, with prices last updated on 13 May 2026.

Wed 27/521:25
LHR
-
SEA
1 stop22h 20m
Icelandair
Sun 7/619:00
SEA
-
LHR
1 stop17h 20m
Icelandair
Deal found 11/5£520
Wed 3/615:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Wed 10/623:25
SEA
-
LGW
1 stop31h 15m
Icelandair
Deal found 12/5£520
Wed 3/613:05
LHR
-
SEA
1 stop15h 35m
Icelandair
Wed 10/623:25
SEA
-
LHR
1 stop28h 30m
Icelandair
Deal found 13/5£521
Thu 25/613:00
LGW
-
SEA
1 stop12h 55m
Icelandair
Sun 5/719:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Deal found 8/5£523
Tue 26/521:25
LHR
-
SEA
1 stop22h 20m
Icelandair
Wed 3/623:25
SEA
-
LHR
1 stop28h 30m
Icelandair
Deal found 8/5£523
Tue 2/613:00
LGW
-
SEA
1 stop30h 45m
Icelandair
Sun 7/619:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Deal found 9/5£523
Tue 2/621:25
LHR
-
SEA
1 stop22h 20m
Icelandair
Tue 30/623:25
SEA
-
LHR
1 stop12h 55m
Icelandair
Deal found 9/5£523
Wed 3/615:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Tue 30/623:25
SEA
-
LGW
1 stop31h 15m
Icelandair
Deal found 9/5£524
Tue 2/621:25
LHR
-
SEA
1 stop22h 20m
Icelandair
Thu 11/623:25
SEA
-
LHR
1 stop12h 55m
Icelandair
Deal found 12/5£524
Thu 11/613:00
LGW
-
SEA
1 stop15h 40m
Icelandair
Thu 9/719:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Deal found 11/5£525
Tue 9/608:30
STN
-
SEA
1 stop16h 40m
Multiple Airlines
Sun 21/619:10
SEA
-
STN
1 stop20h 15m
Multiple Airlines
Deal found 9/5£525
Sat 6/615:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Tue 9/615:40
SEA
-
LGW
1 stop15h 00m
Icelandair
Deal found 13/5£526

Find flight deals to Seattle

Find the latest flights to Seattle in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 13 May 2026.

Return from

£520

One-way from

£405

Popular in

July

Cheapest in

February

Average price

£548

Good round-trip deal

£556 or less

Good one-way deal

£534 or less
Icelandair
  • Icelandair
  • 27/5-7/6
  • 2 total stops
  • 39h 40m total
  • London to Seattle
Icelandair
  • Icelandair
  • 26/9
  • 1 total stop
  • 13h 00m total
  • London to Seattle
Highest demand for flights based on searches. 10% potential increase in price (£66 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (£11 potential savings vs. average return price).
Average for return flights in May 2026
Price to beat on a round-trip flight from London to Seattle/Tacoma Intl.
Price to beat on a one-way flight from London to Seattle/Tacoma Intl.

Cheapflights Fare Finder

 
Locate flights to Seattle that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 13 May 2026.
Use the filters below to find and compare flights to Seattle that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sat 29/8

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Mon 7/9

19:00-14:40

1 stop11h 40m

£542

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Wed 24/6

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Sun 5/7

19:00-14:40

1 stop11h 40m

£542

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sun 6/9

13:00-11:45

1 stop30h 45m

Seattle/Tacoma Intl

Sat 12/9

15:40-11:45

1 stop12h 05m

£555

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 5/11

14:45-16:50

Nonstop10h 05m

Seattle/Tacoma Intl

Mon 9/11

18:55-12:20

Nonstop9h 25m

£600

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 1/9

09:00-16:59

1 stop15h 59m

Seattle/Tacoma Intl

Tue 15/9

19:35-20:40

2 stops17h 05m

£628

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sun 13/9

10:20-15:40

1 stop13h 20m

Seattle/Tacoma Intl

Mon 12/10

18:10-18:50

1 stop16h 40m

£632

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 3/6

06:15-17:10

1 stop18h 55m

Seattle/Tacoma Intl

Wed 10/6

19:10-15:25

1 stop12h 15m

£636

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 3/9

17:45-20:13

Nonstop10h 28m

Seattle/Tacoma Intl

Thu 17/9

11:50-10:40

1 stop14h 50m

£644

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Fri 4/9

19:50-13:45

2 stops25h 55m

Seattle/Tacoma Intl

Mon 7/9

09:50-16:00

2 stops22h 10m

£651

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 12/8

08:40-16:27

1 stop15h 47m

Seattle/Tacoma Intl

Thu 20/8

07:15-06:20

1 stop15h 05m

£653

Flights are sorted by cheapest return flights first.

Deals found on 8/5

Showing 1-10 of 60 resultsSorted by cheapest first
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6

Best time to book a flight to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight to Seattle

When is the best time to book a flight to Seattle?

The best time to book flights to Seattle is 80 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

How long is the flight to Seattle?

On average, a flight from London to Seattle takes 13 hours 48 minutes. Flights to Seattle from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

Weekly flight availability to Seattle

The most flights from London to Seattle are scheduled on a Monday (21 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (16 on average).

What are the cheapest airlines that fly to Seattle?

The cheapest airlines flying from London to Seattle are Lufthansa, Icelandair and Aer Lingus.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 13 May 2026.
Check out reviews from past customers who have flown KLM,Air France, andVirgin Atlantic to the United States to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Boarding

7.8

Crew

8.4

Entertainment

7.2

Food

7.3

Overall

7.8

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Boarding

7.8

Crew

8.4

Entertainment

7.2

Food

7.3

Overall

7.8

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Boarding

7.8

Crew

8.4

Entertainment

7.2

Food

7.3

Overall

7.8

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Boarding

7.8

Crew

8.4

Entertainment

7.2

Food

7.3

Overall

7.8

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Boarding

7.8

Crew

8.4

Entertainment

7.2

Food

7.3

Overall

7.8

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Boarding

7.8

Crew

8.4

Entertainment

7.2

Food

7.3

Overall

7.8

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

FAQs about flying to Seattle

Getting around Seattle

The Metro Transit system of buses, including electric and hybrid buses, is useful and tourist-friendly, though drivers do not carry change. Express routes are offered by some buses. Other options include the streetcar and the monorail, connecting with major attractions. The Washington State Ferries are a tourist attraction in their own right.

Seattle is generally safe, though common sense should be applied at all times and it can be best to avoid parks at night.

Getting downtown:

Flights to Seattle will take you to Seattle-Tacoma International Airport (SEA), also known as Sea-Tac, it is the city’s major airport. It is 10 miles (16 km) from the city centre. There are several options for getting into the city. The Link Light Rail is a convenient choice, taking just over 30 minutes to reach the centre. Shuttle buses are useful for those with a lot of luggage. There are also taxis and rental cars.

Seattle airport overview

Seattle-Tacoma International Airport, also affectionately known as Sea-Tac Airport, is located in the southern King County of Washington, 19km (12 miles) south of Seattle. Serving more than 31.5 million passengers in 2010, it is the United States’ 18th busiest airport.

Sea-Tac Airport has a Main (central) Terminal and ticketing arena surrounded by concourses A-D, as well as a two satellite terminals called the North and South Satellites. An automatic people-mover transports passengers between the satellite terminals and the Main Terminal. Running alongside the ticketing concourse is the airport garage, which houses five parking areas and a ground transportation centre. All gates may be accessed once past security.

With an extensive selection of art on display throughout the airport, in addition to a host of shops, restaurants, bars, bistros and fast-food outlets, Sea-Tac is both attractive and inviting. Moreover, its combination of efficient facilities and helpful staff make pesky tasks such as checking-in a breeze.

Flights to Seattle-Tacoma International Airport comes from a number of cities worldwide, including Toronto, Paris, Atlanta, Los Angeles, Chicago, Seoul, London, Frankfurt, Amsterdam, Tokyo, New York, Honolulu and Beijing.

  • What airport do you fly into for flights to Seattle?

    For a flight to Seattle, you will be flying into Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city. Booking flights from London to Seattle/Tacoma Intl should be relatively easy as there are 20 daily flights from 14 different airlines.

  • Can I find cheaper flights to Seattle if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Seattle on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Seattle?

    Based on reviews from Cheapflights users, Lufthansa is rated the highest out of the airlines that fly to Seattle.

  • What is the cheapest airport to fly to in Seattle?

    Seattle/Tacoma Intl is currently the cheapest airport to fly to in Seattle. One-way flights to Seattle/Tacoma Intl typically cost £87, while return flights cost around £44.

  • How much is a return flight to Seattle?

    A return flight to Seattle will typically cost around £218, however they can be found for as little as £44.

  • Where does the fastest flight to Seattle depart from?

    For those looking to save time traveling to Seattle, London offers the quickest one-way flight (9 hours 45 minutes).

  • Which airport is closest to Seattle Waterfront?

    f being close to Seattle Waterfront is important to you, you’ll want to land at Seattle/Tacoma Intl Airport.

  • Does Seattle/Tacoma Intl have car hire?

    Yes. Those touching down at Seattle/Tacoma Intl can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Seattle/Tacoma Intl?

    Yes. Seattle/Tacoma Intl has hotels nearby for those requiring accommodations. Serene 3-bedroom house perfect for relaxing stays in SeaTac, Burien, Seattle is the closest property to Seattle/Tacoma Intl (0.0 mi away from Seattle/Tacoma Intl).

See more FAQs

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Federal Way
SeaTac

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