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Cheap flights from Bristol to Seattle from £320

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 17/6. Fares are subject to change and may not be available on all flights or dates of travel.
BRS — SEA
9 May — 16 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Bristol to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Bristol to Seattle
Explore the most affordable flight options available from Bristol to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 April 2026.

Thu 21/508:55
BRS
-
SEA
2 stops19h 45m
Multiple Airlines
Thu 28/515:40
SEA
-
BRS
2 stops23h 15m
Multiple Airlines
Deal found 6/4£490
Tue 9/608:20
BRS
-
SEA
3 stops42h 25m
Multiple Airlines
Mon 21/910:30
SEA
-
BRS
3 stops28h 25m
Multiple Airlines
Deal found 5/4£632
Thu 11/608:25
BRS
-
SEA
1 stop16h 45m
Aer Lingus
Wed 8/719:10
SEA
-
BRS
1 stop12h 50m
Aer Lingus
Deal found 7/4£715
Tue 9/608:25
BRS
-
SEA
1 stop16h 45m
Aer Lingus
Mon 21/919:10
SEA
-
BRS
1 stop12h 50m
Aer Lingus
Deal found 5/4£716
Thu 11/620:20
BRS
-
SEA
2 stops30h 25m
Multiple Airlines
Wed 8/719:10
SEA
-
BRS
1 stop34h 55m
Multiple Airlines
Deal found 7/4£721
Sat 2/510:45
BRS
-
SEA
1 stop13h 45m
KLM
Fri 8/513:45
SEA
-
BRS
1 stop24h 20m
KLM
Deal found 7/4£772

Find flight deals from Bristol to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Bristol (BRS) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 9 April 2026.

Round-trip from

£490

One-way from

£320

Popular in

January

Cheapest in

November
21/5-28/5
  • 21/5-28/5
  • 4 total stops
  • 43h 00m total
  • Bristol to Seattle
Search Deals
17/6
  • 17/6
  • 3 total stops
  • 41h 25m total
  • Bristol to Seattle
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£54 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals

Cheapflights 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, Cheapflights users made 858,174 searches. Data last updated 9 April 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

Thu 21/5

08:55-17:10

1 stop16h 15m

Seattle/Tacoma Intl

Thu 28/5

19:10-22:55

1 stop19h 45m

£529

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Tue 9/6

08:20-18:45

3 stops42h 25m

Seattle/Tacoma Intl

Mon 21/9

10:30-22:55

3 stops28h 25m

£632

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Thu 11/6

08:25-17:10

1 stop16h 45m

Seattle/Tacoma Intl

Wed 8/7

19:10-16:00

1 stop12h 50m

£715
Fastest return journey

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Sat 2/5

10:45-16:30

1 stop13h 45m

Seattle/Tacoma Intl

Fri 8/5

13:45-10:15

1 stop12h 30m

£772

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Sat 2/5

10:45-16:30

1 stop13h 45m

Seattle/Tacoma Intl

Fri 8/5

13:45-22:05

1 stop24h 20m

£773
Cheapest one-way
Fastest single journey

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Wed 17/6

09:20-18:45

3 stops41h 25m

£320

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Sat 13/6

22:20-10:35

3 stops44h 15m

£379

Flights are sorted by cheapest return flights first.

Deals found on 7/4

Sorted by cheapest first

Best time to book a flight from Bristol to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Bristol 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 from Bristol to Seattle

What’s the top stopover airport for flights from Bristol to Seattle?

Share of one-stop return flights from Bristol to Seattle chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Amsterdam (AMS) – chosen by Cheapflights users on 95% of one-stop itineraries from Bristol to Seattle on Cheapflights.

What’s the cheapest stopover airport for flights from Bristol to Seattle?

Average return fare for one-stop flights from Bristol to Seattle, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Amsterdam (AMS) is the most affordable one-stop option, with an average return flight price of £648.

What’s the fastest stopover option from Bristol to Seattle?

Shortest average travel time for one-stop one-way flights from Bristol to Seattle, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Amsterdam (AMS) have the shortest average one-way travel time for one-stop routes: 15h 47m.

Which airport typically offers the quickest stopover for flights from Bristol to Seattle?

Average stopover duration for one-stop one-way flights from Bristol to Seattle, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Amsterdam (AMS) offer the fastest connection on this route, with an average stopover time of 4h 41m.

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 9 April 2026.
Read through reviews of airlines operating flights from Bristol to Seattle, such as KLM. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,492 reviews
Check prices

Comfort

7.6

Crew

8.4

Food

7.3

Boarding

7.8

Entertainment

7.1

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.7
Good
1,492 reviews
KLM
7.7
Good
1,492 reviews
Check prices

Comfort

7.6

Crew

8.4

Food

7.3

Boarding

7.8

Entertainment

7.1

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

Related info for your journey

Find useful and relevant information for your journey from Bristol to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Bristol to Seattle?

    Departing from Bristol to Seattle will take you 13h 45m. The distance between Bristol and Seattle is about 4727 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What is the cheapest airline to fly from Bristol to Seattle round-trip?

    Currently priced at £537, KLM will fly you from Bristol to Seattle and back. In addition to KLM, many other airlines offer competitively priced options for your trip. Users have found that KLM is 19% cheaper than the other options available to this destination.

  • Can I find deals for flights from Bristol to Seattle that include hotel bookings?

    Yes. In addition to deals on Bristol to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Bristol to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bristol to Seattle.

  • Can I find deals for business class flights from Bristol to Seattle?

    Yes. Cheapflights offers flight deals from Bristol to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Bristol to Seattle

Discover the top airline that operate flights from Bristol to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 9 April 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£537Average£619FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Bristol to Seattle?

When you search for this flight from Bristol to Seattle, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Bristol to Seattle?

Millions of users choose and trust Cheapflights to book the best flight deals from Bristol to Seattle for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Bristol to Seattle with no change fees?

Yes, we can. To see specific flights from Bristol to Seattle with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Bristol to Seattle become cheaper?

Yes! Start tracking prices for Bristol to Seattle flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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