Cheap Flights to Seattle-Tacoma International from £289

Flights to Seattle-Tacoma International in 2021

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.

Popular in	July	High demand for flights, 22% potential price rise
Cheapest in	February	Best time to find cheap flights, 4% potential price drop
Average price	£542	Average for round-trip flights in July 2021
Round-trip from	£346	From London to Seattle/Tacoma Intl

Cheap flights to Seattle in July, August 2021

The best prices found for SEA flights for July, August

18 Aug - 18 Oct

£388pp

LHR

London Heathrow

Multiple airlines

1 STOP

SEA

Seattle/Tacoma Intl

SEA

Seattle/Tacoma Intl

Air Canada

1 STOP

LHR

London Heathrow

27 Aug - 25 Sep

£391pp

LHR

London Heathrow

Multiple airlines

1 STOP

SEA

Seattle/Tacoma Intl

SEA

Seattle/Tacoma Intl

Air Canada

1 STOP

LHR

London Heathrow

20 Aug - 17 Nov

£393pp

LHR

London Heathrow

Multiple airlines

1 STOP

SEA

Seattle/Tacoma Intl

SEA

Seattle/Tacoma Intl

Air Canada

1 STOP

LHR

London Heathrow

Seattle 2021 flight deals

Cheap flights to Seattle found for this year

18 Oct - 26 Oct

£376pp

LHR

London Heathrow

Icelandair

1 STOP

SEA

Seattle/Tacoma Intl

SEA

Seattle/Tacoma Intl

Icelandair

1 STOP

LHR

London Heathrow

18 Oct - 26 Oct

£382pp

LHR

London Heathrow

Icelandair

1 STOP

SEA

Seattle/Tacoma Intl

SEA

Seattle/Tacoma Intl

Icelandair

1 STOP

LHR

London Heathrow

18 Aug - 18 Oct

£388pp

LHR

London Heathrow

Multiple airlines

1 STOP

SEA

Seattle/Tacoma Intl

SEA

Seattle/Tacoma Intl

Air Canada

1 STOP

LHR

London Heathrow

Last minute flights to Seattle

Late deals on return flights to Seattle, departing today and this week

4 Aug - 30 Nov

£463pp

LHR

London Heathrow

Lufthansa

1 STOP

SEA

Seattle/Tacoma Intl

SEA

Seattle/Tacoma Intl

Lufthansa

1 STOP

LHR

London Heathrow

8 Aug - 20 Aug

£466pp

LHR

London Heathrow

Lufthansa

1 STOP

SEA

Seattle/Tacoma Intl

SEA

Seattle/Tacoma Intl

Lufthansa

1 STOP

LHR

London Heathrow

3 Aug - 1 Sep

£470pp

LHR

London Heathrow

Lufthansa

1 STOP

SEA

Seattle/Tacoma Intl

SEA

Seattle/Tacoma Intl

Lufthansa

1 STOP

LHR

London Heathrow

Cheapest prices for Seattle-Tacoma International flights by month

The cheapest ticket to Seattle-Tacoma International found for each month in 2021 based on historical flight searches by Cheapflights users.

January

£340

February

£398

March

£395

April

£370

May

£392

June

£406

July

£515

August

£403

September

£375

October

£341

November

£375

December

£432

Currently, January is the cheapest month in which you can book a flight to Seattle-Tacoma International. Flying to Seattle-Tacoma International in July will prove the most costly. There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

When is the best time to fly to Seattle-Tacoma International?

Average Seattle/Tacoma Intl flight ticket prices and weather conditions for 2021 and 2022 by month.

LON - SEA Price	£340 - £652
SEA Temperature	8 - 25 °C
SEA Precipitation	18 - 166 mm

Whilst there are several times of the year to choose from, January is seen as the time to fly to Seattle-Tacoma International, however, it is possible to get good deals throughout the year. July tends to be the warmest period in Seattle-Tacoma International so if you are looking for sun or warmer climates then look to fly around this time. November is the wettest if you need to factor this in to your plans.

When is the best time to book a flight to Seattle-Tacoma International?

The price you pay for your flight to Seattle-Tacoma International may vary depending on when you book. For the best chance of a lower fare, look to book 52 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Which day is cheapest to fly to Seattle-Tacoma International?

At the moment, Tuesday is the most economical day to take a flight to Seattle-Tacoma International. Sunday is likely to be the most costly.

What time of day is cheapest to fly to Seattle-Tacoma International?

At the moment, flights in the evening are likely to offer the best value for money for your Seattle-Tacoma International trip. A flight in the afternoon will more often than not be of higher cost.

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?

Travellers will need to book flights to Seattle/Tacoma Intl (SEA) if they wish to fly to Seattle. The Seattle airport is 11.4 mi from the city centre.