£326+ 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 27/5. Fares are subject to change and may not be available on all flights or dates of travel.
Flights to Seattle in 2025
Find the latest flights to Seattle in 2025, 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 16 April 2025.
Find flight deals to Seattle
Cheapest flights to SeattleExplore the most affordable flight options available to Seattle. Find the lowest fares based on data from user searches, with prices last updated on 16 April 2025.
Explore the most affordable flight options available to Seattle. Find the lowest fares based on data from user searches, with prices last updated on 16 April 2025.
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 16 April 2025.
Use the filters below to find and compare flights to Seattle that are best for you.
Fly from
Route
Depart
Return
Price
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Mon 28/4
21:25-20:40
1 stop31h 15m
Seattle/Tacoma Intl
Tue 13/5
15:45-20:20
1 stop20h 35m
LondonSeattle
LGW - SEA
LGWSEA
London Gatwick
Mon 12/5
15:40-17:50
1 stop34h 10m
Seattle/Tacoma Intl
Fri 16/5
19:00-11:45
1 stop32h 45m
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Thu 1/5
06:30-12:25
1 stop13h 55m
Seattle/Tacoma Intl
Thu 8/5
07:00-08:20
1 stop17h 20m
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Fri 9/5
07:25-16:59
1 stop17h 34m
Seattle/Tacoma Intl
Sat 17/5
07:20-10:00
1 stop18h 40m
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Tue 6/5
11:00-19:36
1 stop16h 36m
Seattle/Tacoma Intl
Tue 13/5
23:58-09:50
2 stops25h 52m
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Tue 6/5
08:45-19:37
2 stops18h 52m
Seattle/Tacoma Intl
Tue 13/5
07:20-06:30
1 stop15h 10m
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Fri 30/5
06:40-13:50
1 stop15h 10m
Seattle/Tacoma Intl
Fri 6/6
16:00-16:00
1 stop16h 00m
LondonSeattle
STN - SEA
STNSEA
London Stansted
Tue 6/5
21:15-15:05
2 stops25h 50m
Seattle/Tacoma Intl
Sun 11/5
17:05-22:40
2 stops21h 35m
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Wed 30/4
10:50-16:59
1 stop14h 09m
Seattle/Tacoma Intl
Wed 7/5
08:10-06:55
1 stop14h 45m
LondonSeattle
LHR - SEA
LHRSEA
London Heathrow
Mon 5/5
06:20-16:59
1 stop18h 39m
Seattle/Tacoma Intl
Mon 12/5
20:20-13:40
Nonstop9h 20m
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.
Cheapflights Insights
Everything you need to know about your flight to Seattle
When is the best time to book a flight to Seattle?
Use this chart to determine the optimal time to book a return flight from London to Seattle. Price data was last updated on 11 April 2025.
The best time to book flights to Seattle is 69 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 19 hours 59 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.
When is the cheapest time to fly to Seattle?
Use this chart to determine the cheapest time to fly return from London to Seattle. Price data was last updated on 16 December 2024.
Users looking for the lowest fares to Seattle should consider flying on Wednesday mornings, when prices are typically cheapest. Budget-minded travellers will want to avoid Sunday at midday, when prices are usually at their highest.
Weekly flight availability to Seattle
The most flights from London to Seattle are scheduled on a Monday (22 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (11 on average).
What are the most popular airlines that fly to Seattle?
The most popular airlines flying from London to Seattle are Virgin Atlantic, British Airways and Icelandair.
What are the cheapest airlines that fly to Seattle?
The cheapest airlines flying from London to Seattle are Aer Lingus, Icelandair and Air France.
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 16 April 2025.
Read reviews from past customers who have flown Delta, KLM and Finnair to Seattle. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
Comfort
Entertainment
Crew
Boarding
Food
Reviews
Aaron,Oct 2024
TUS - LAX
Overall
Comfort
Entertainment
Crew
Boarding
Food
Reviews
Aaron,Oct 2024
TUS - LAX
Overall
Comfort
Entertainment
Crew
Boarding
Food
Reviews
Aaron,Oct 2024
TUS - LAX
Overall
Comfort
Entertainment
Crew
Boarding
Food
Reviews
Aaron,Oct 2024
TUS - LAX
Overall
Comfort
Entertainment
Crew
Boarding
Food
Reviews
Aaron,Oct 2024
TUS - LAX
Overall
Comfort
Entertainment
Crew
Boarding
Food
Reviews
Aaron,Oct 2024
TUS - LAX
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.
Travelling to a place near Seattle?
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How does Cheapflights help users find flights to Seattle?
Cheapflights makes it easy to find Seattle flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
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Can Cheapflights find flights to Seattle with no change fees?
Yes! Cheapflights helps users easily find flights to Seattle with no change fees.
Can Cheapflights notify me if prices for flights to Seattle become cheaper?
Yes, Cheapflights has a feature called Price Alerts, which notifies users when flight prices change. Track prices for your flight to Seattle today and book when you’re ready!