Which airlines fly to Seattle?

KLM, Virgin Atlantic and Aer Lingus are the top three most popular airlines that fly to Seattle from Bristol according to our data. KLM is the first choice among our users, with 40% of people opting to fly with this airline when travelling to Seattle. Keep in mind that there are 6 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Bristol Airport to Seattle/Tacoma Intl Airport?

Prices for flights from Bristol Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Bristol Airport to Seattle/Tacoma Intl Airport?

As of July 2025, there are 2 operators available to choose from for flights from Bristol Airport to Seattle/Tacoma Intl Airport.

How old do you have to be to fly from Bristol Airport to Seattle/Tacoma Intl Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Bristol Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

£511 Cheap Flights from Bristol to Seattle in 2025

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Find the cheapest flights from Bristol to Seattle

Round-trip

One-way

Last minute

Cheap return flights

08:25 - 17:50BRS-SEA

17h 25m1 stop

19:35 - 18:35SEA-BRS

15h 00m1 stop

£533Aer Lingus

Find Deal

Thu, 11 Sep - Thu, 18 Sep

08:25 - 17:50BRS-SEA

17h 25m2 stops

15:45 - 18:35SEA-BRS

18h 50m2 stops

£595

Find Deal

Thu, 11 Sep - Thu, 18 Sep

08:55 - 17:50BRS-SEA

16h 55m1 stop

18:38 - 13:05SEA-BRS

34h 27m2 stops

£643

Find Deal

Thu, 11 Sep - Thu, 18 Sep

06:15 - 16:05BRS-SEA

17h 50m1 stop

07:50 - 13:15SEA-BRS

21h 25m2 stops

£703Delta

Find Deal

Fri, 12 Sep - Fri, 19 Sep

06:15 - 16:45BRS-SEA

18h 30m2 stops

07:50 - 13:15SEA-BRS

21h 25m2 stops

£707Delta

Find Deal

Fri, 12 Sep - Fri, 19 Sep

08:55 - 10:59BRS-SEA

34h 04m3 stops

12:00 - 21:35SEA-BRS

25h 35m2 stops

£773

Find Deal

Thu, 11 Sep - Thu, 18 Sep

08:55 - 10:59BRS-SEA

34h 04m3 stops

05:30 - 18:30SEA-BRS

29h 00m3 stops

£774

Find Deal

Thu, 11 Sep - Thu, 18 Sep

12:25 - 17:50BRS-SEA

13h 25m1 stop

19:35 - 07:55SEA-BRS

28h 20m1 stop

£791Aer Lingus

Find Deal

Fri, 12 Sep - Fri, 19 Sep

13:40 - 11:50BRS-SEA

30h 10m1 stop

15:00 - 22:10SEA-BRS

23h 10m1 stop

£1,132KLM

Find Deal

Sun, 21 Dec - Mon, 5 Jan

13:40 - 11:50BRS-SEA

30h 10m1 stop

15:00 - 10:15SEA-BRS

35h 15m1 stop

£1,139KLM

Find Deal

Sun, 21 Dec - Mon, 5 Jan

KLM flights from Bristol to Seattle

Our best KLM deals on Bristol to Seattle flight tickets

KLM

21 Dec

BRS13:40Bristol

30h 10m

1 stop

SEA11:50Seattle/Tacoma Intl

5 Jan

SEA15:00Seattle/Tacoma Intl

23h 10m

1 stop

BRS22:10Bristol

£1,132

Find similar

KLM

21 Dec

BRS13:40Bristol

30h 10m

1 stop

SEA11:50Seattle/Tacoma Intl

5 Jan

SEA15:00Seattle/Tacoma Intl

35h 15m

1 stop

BRS10:15Bristol

£1,139

Find similar

KLM

21 Dec

BRS06:00Bristol

20h 17m

2 stops

SEA18:17Seattle/Tacoma Intl

5 Jan

SEA08:25Seattle/Tacoma Intl

17h 50m

2 stops

BRS10:15Bristol

£1,167

Find similar

Aer Lingus flights from Bristol to Seattle

Our best Aer Lingus deals on Bristol to Seattle flight tickets

Aer Lingus

11 Sept

BRS08:25Bristol

17h 25m

1 stop

SEA17:50Seattle/Tacoma Intl

18 Sept

SEA19:35Seattle/Tacoma Intl

15h 00m

1 stop

BRS18:35Bristol

£533

Find similar

Aer Lingus

12 Sept

BRS12:25Bristol

13h 25m

1 stop

SEA17:50Seattle/Tacoma Intl

19 Sept

SEA19:35Seattle/Tacoma Intl

28h 20m

1 stop

BRS07:55Bristol

£791

Find similar

Aer Lingus

5 Aug

BRS08:25Bristol

20h 05m

2 stops

SEA20:30Seattle/Tacoma Intl

11 Aug

SEA19:35Seattle/Tacoma Intl

15h 00m

1 stop

BRS18:35Bristol

£794

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Thu 11/9

08:25-17:50

1 stop17h 25m

Seattle/Tacoma Intl

Thu 18/9

19:35-18:35

1 stop15h 00m

£533

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Thu 11/9

08:25-17:50

2 stops17h 25m

Seattle/Tacoma Intl

Thu 18/9

15:45-18:35

2 stops18h 50m

£595

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Thu 11/9

08:55-17:50

1 stop16h 55m

Seattle/Tacoma Intl

Thu 18/9

18:38-13:05

2 stops34h 27m

£643

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Fri 12/9

06:15-16:05

1 stop17h 50m

Seattle/Tacoma Intl

Fri 19/9

07:50-13:15

2 stops21h 25m

£703

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Fri 12/9

06:15-16:45

2 stops18h 30m

Seattle/Tacoma Intl

Fri 19/9

07:50-13:15

2 stops21h 25m

£707

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Thu 11/9

08:55-10:59

3 stops34h 04m

Seattle/Tacoma Intl

Thu 18/9

12:00-21:35

2 stops25h 35m

£773

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Thu 11/9

08:55-10:59

3 stops34h 04m

Seattle/Tacoma Intl

Thu 18/9

05:30-18:30

3 stops29h 00m

£774

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Fri 12/9

12:25-17:50

1 stop13h 25m

Seattle/Tacoma Intl

Fri 19/9

19:35-07:55

1 stop28h 20m

£791

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Sun 21/12

13:40-11:50

1 stop30h 10m

Seattle/Tacoma Intl

Mon 5/1

15:00-22:10

1 stop23h 10m

£1,132

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Sun 21/12

13:40-11:50

1 stop30h 10m

Seattle/Tacoma Intl

Mon 5/1

15:00-10:15

1 stop35h 15m

£1,139

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Bristol to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Seattle?

The cheapest month to fly to Seattle from Bristol is in March. Flight prices, which tend to average around £586, are often lower during this time because this is during the off-season. The month of September is another great option to travel to Seattle, with average flight prices from Bristol averaging around £598.

What is the cheapest day to depart on your flight to Seattle?

According to our data, Saturday is the cheapest day to fly to Seattle from Bristol. The lowest ticket price found for a Saturday departure recently was £620. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to Seattle on Wednesday is £795.

What is the cheapest time of day to depart on your flight to Seattle?

According to our data, the cheapest time of day to fly to Seattle is in the afternoon. momondo users have found flights departing from Bristol to Seattle in the afternoon for as low as £670. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive, with an average ticket price of £675.

Can stopping save me money on Bristol to Seattle flights?

You could potentially save up to 11% on your flight if you consider stops on a Bristol to Seattle flight.

When to book flights from Bristol to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Bristol to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Bristol to Seattle (BRS to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Bristol to Seattle

Best price found	£533
Fastest flight time	13h 25m
Direct flights	None
Airports in Seattle	1 airport

The best flight deal from Bristol to Seattle found on momondo in the last 72 hours is £533

The fastest flight from Bristol to Seattle takes 13h 25m

There are no direct flights from Bristol to Seattle. Popular non-direct route for this connection is Bristol Airport - Seattle/Tacoma Intl Airport.

There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

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How far is Bristol to Seattle/Tacoma Intl by plane?
The distance between Bristol and Seattle/Tacoma Intl is about 4718.0 mi. Flights usually cover this in 13h 25m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Bristol Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Bristol Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Bristol Airport to Seattle/Tacoma Intl Airport?
As of July 2025, there are 2 operators available to choose from for flights from Bristol Airport to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Bristol Airport to Seattle/Tacoma Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Bristol Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Bristol to Seattle?
momondo data reveals that the most frequently booked airline on the route from Bristol to Seattle is KLM, representing 78% of all bookings. The subsequent popular airline is Virgin Atlantic at 22%.

Best airlines flying from Bristol to Seattle

Compare and see reviews for airlines that fly from Bristol to Seattle with momondo

Airline	Rating	Free Cancellation	Price
KLM	PriceFrom £541	Free Cancellation	Rating 7.8 1,383 reviews		Search KLM flights
Virgin Atlantic	PriceFrom £573	Free Cancellation	Rating 7.4 655 reviews		Search Virgin Atlantic flights

Kent

SeaTac

Fife

Tukwila

Renton

Why use momondo?

Why should I use momondo to find a flight deal from Bristol to Seattle?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle from Bristol.

Can I find flights from Bristol to Seattle with flexible booking policies on momondo?

momondo does allow users to show only those flights to Seattle from Bristol which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Bristol to Seattle?

Once you have performed a search for Bristol to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Bristol to Seattle right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Bristol to Seattle flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.