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Cheap flights from Bristol to Seattle from £310

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Bristol to Seattle departing on 18/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Bristol to Seattle

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
08:55 - 17:10
BRS
-
SEA
16h 15m
1 stop
Multiple Airlines Logo
19:10 - 23:05
SEA
-
BRS
19h 55m
1 stop
£517Multiple Airlines
Mon, 11 May - Mon, 18 May
Multiple Airlines Logo
09:20 - 18:45
BRS
-
SEA
41h 25m
3 stops
Multiple Airlines Logo
08:00 - 22:50
SEA
-
BRS
30h 50m
3 stops
£647Multiple Airlines
Wed, 13 May - Wed, 20 May
Aer Lingus Logo
08:25 - 17:10
BRS
-
SEA
16h 45m
1 stop
Aer Lingus Logo
19:10 - 16:00
SEA
-
BRS
12h 50m
1 stop
£650Aer Lingus
Wed, 13 May - Wed, 20 May
Multiple Airlines Logo
08:55 - 09:40
BRS
-
SEA
32h 45m
3 stops
Multiple Airlines Logo
05:50 - 23:05
SEA
-
BRS
33h 15m
3 stops
£687Multiple Airlines
Mon, 11 May - Mon, 18 May
Delta Logo
06:15 - 11:42
BRS
-
SEA
13h 27m
1 stop
Delta Logo
17:40 - 17:00
SEA
-
BRS
15h 20m
1 stop
£690Delta
Mon, 11 May - Mon, 18 May
Virgin Atlantic Logo
06:15 - 16:37
BRS
-
SEA
18h 22m
2 stops
Virgin Atlantic Logo
13:45 - 13:15
SEA
-
BRS
15h 30m
1 stop
£694Virgin Atlantic
Mon, 11 May - Mon, 18 May
KLM Logo
06:15 - 16:01
BRS
-
SEA
17h 46m
2 stops
KLM Logo
13:45 - 17:00
SEA
-
BRS
19h 15m
1 stop
£695KLM
Mon, 11 May - Mon, 18 May
Delta Logo
09:20 - 22:40
BRS
-
SEA
21h 20m
2 stops
Delta Logo
13:45 - 13:15
SEA
-
BRS
15h 30m
1 stop
£708Delta
Wed, 13 May - Wed, 20 May
Multiple Airlines Logo
08:55 - 17:10
BRS
-
SEA
16h 15m
1 stop
Multiple Airlines Logo
19:00 - 16:45
SEA
-
BRS
37h 45m
2 stops
£718Multiple Airlines
Mon, 1 Jun - Thu, 4 Jun
Multiple Airlines Logo
12:00 - 18:45
BRS
-
SEA
38h 45m
2 stops
Multiple Airlines Logo
19:10 - 20:15
SEA
-
BRS
17h 05m
1 stop
£727Multiple Airlines
Thu, 9 Jul - Mon, 13 Jul

British Airways flights from Bristol to Seattle

Our best British Airways deals on Bristol to Seattle flight tickets
British Airways
9 Jul
BRS08:25Bristol
16h 45m
1 stop
SEA17:10Seattle/Tacoma Intl
14 Jul
SEA19:10Seattle/Tacoma Intl
12h 50m
1 stop
BRS16:00Bristol
£793
British Airways
8 Jul
BRS14:55Bristol
34h 15m
1 stop
SEA17:10Seattle/Tacoma Intl
13 Jul
SEA19:10Seattle/Tacoma Intl
12h 50m
1 stop
BRS16:00Bristol
£803
British Airways
9 Jul
BRS08:25Bristol
16h 45m
1 stop
SEA17:10Seattle/Tacoma Intl
12 Jul
SEA19:10Seattle/Tacoma Intl
12h 50m
1 stop
BRS16:00Bristol
£824

KLM flights from Bristol to Seattle

Our best KLM deals on Bristol to Seattle flight tickets
KLM
11 May
BRS06:15Bristol
17h 46m
2 stops
SEA16:01Seattle/Tacoma Intl
18 May
SEA13:45Seattle/Tacoma Intl
19h 15m
1 stop
BRS17:00Bristol
£695
KLM
2 May
BRS06:15Bristol
13h 30m
1 stop
SEA11:45Seattle/Tacoma Intl
8 May
SEA13:45Seattle/Tacoma Intl
24h 20m
1 stop
BRS22:05Bristol
£751
KLM
13 May
BRS06:15Bristol
17h 46m
2 stops
SEA16:01Seattle/Tacoma Intl
20 May
SEA20:15Seattle/Tacoma Intl
28h 35m
2 stops
BRS08:50Bristol
£752

momondo Fare Finder

 
Customise your flight search to find flights from Bristol to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 31 March 2026.
Use the filters below to find and compare flights from Bristol to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Mon 11/5

08:55-17:10

1 stop16h 15m

Seattle/Tacoma Intl

Mon 18/5

19:10-23:05

1 stop19h 55m

£517

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Wed 13/5

09:20-18:45

3 stops41h 25m

Seattle/Tacoma Intl

Wed 20/5

08:00-22:50

3 stops30h 50m

£647

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Wed 13/5

08:25-17:10

1 stop16h 45m

Seattle/Tacoma Intl

Wed 20/5

19:10-16:00

1 stop12h 50m

£650

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Mon 11/5

08:55-09:40

3 stops32h 45m

Seattle/Tacoma Intl

Mon 18/5

05:50-23:05

3 stops33h 15m

£687
Fastest return journey

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Mon 11/5

06:15-11:42

1 stop13h 27m

Seattle/Tacoma Intl

Mon 18/5

17:40-17:00

1 stop15h 20m

£690

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Mon 11/5

06:15-16:37

2 stops18h 22m

Seattle/Tacoma Intl

Mon 18/5

13:45-13:15

1 stop15h 30m

£694

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Mon 11/5

06:15-16:01

2 stops17h 46m

Seattle/Tacoma Intl

Mon 18/5

13:45-17:00

1 stop19h 15m

£695

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Wed 13/5

09:20-22:40

2 stops21h 20m

Seattle/Tacoma Intl

Wed 20/5

13:45-13:15

1 stop15h 30m

£708

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Mon 1/6

08:55-17:10

1 stop16h 15m

Seattle/Tacoma Intl

Thu 4/6

19:00-16:45

2 stops37h 45m

£718

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Thu 9/7

12:00-18:45

2 stops38h 45m

Seattle/Tacoma Intl

Mon 13/7

19:10-20:15

1 stop17h 05m

£727

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Seattle from

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

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 £583, are often lower during this time because this is during the off-season. The month of November is another great option to travel to Seattle, with average flight prices from Bristol averaging around £597.

Can stopping save me money on Bristol to Seattle flights?

You could potentially save up to 14% 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

Fastest flight time

16h 45m

Direct flights

None
The fastest flight from Bristol to Seattle takes 16h 45m
There are no direct flights from Bristol to Seattle. There are no popular flight routes from Bristol to Seattle.
Search flight deals

  • 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 16h 45m, 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?

  • 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?

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
KLMPriceFrom £545Free CancellationRating
7.8
1,480 reviews
Search KLM flights

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Fife
SeaTac
Tukwila

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.

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