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Cheap flights from Bristol to Seattle from £539

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/10. Fares are subject to change and may not be available on all flights or dates of travel.
BRS — SEA
27 Aug — 3 Sep1
1 adult

Cheap 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 22 August 2025.

Round-trip from

£539

Popular in

April

Cheapest in

March

Average price

£671
14/10-21/10
  • 14/10-21/10
  • 4 total stops
  • 32h 25m total
  • Bristol to Seattle
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£25 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
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Find flight deals from Bristol to Seattle

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 22 August 2025.

Tue 14/1007:20BRS - SEA
2 stops18h 30mMultiple Airlines
Tue 21/1015:45SEA - BRS
2 stops13h 55mMultiple Airlines
Deal found 20/8£539
Tue 14/1006:20BRS - SEA
1 stop17h 45mKLM
Tue 21/1014:00SEA - BRS
1 stop34h 50mKLM
Deal found 20/8£616
Thu 25/906:15BRS - SEA
1 stop17h 50mDelta
Mon 29/917:40SEA - BRS
1 stop15h 20mDelta
Deal found 20/8£624
Tue 14/1016:30BRS - SEA
2 stops27h 05mAer Lingus
Mon 20/1000:34SEA - BRS
2 stops23h 21mAer Lingus
Deal found 20/8£744
Sun 21/1206:15BRS - SEA
1 stop18h 45mMultiple Airlines
Mon 5/114:35SEA - BRS
2 stops20h 05mMultiple Airlines
Deal found 21/8£878
Thu 25/906:15BRS - SEA
3 stops19h 35mMultiple Airlines
Mon 29/919:00SEA - BRS
2 stops20h 05mMultiple Airlines
Deal found 20/8£920

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 22 August 2025.
Use the filters below to find and compare flights from Bristol to Seattle that are best for you.

Fly from

Bristol

Fly to

Seattle

Route

Depart

Return

Price

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Tue 14/10

07:20-17:50

2 stops18h 30m

Seattle/Tacoma Intl

Tue 21/10

15:45-13:40

2 stops13h 55m

£539

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Tue 14/10

06:20-16:05

1 stop17h 45m

Seattle/Tacoma Intl

Tue 21/10

14:00-08:50

1 stop34h 50m

£616

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Tue 14/10

06:20-11:50

1 stop13h 30m

Seattle/Tacoma Intl

Tue 21/10

13:35-17:00

2 stops19h 25m

£616

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Thu 25/9

09:20-16:05

1 stop14h 45m

Seattle/Tacoma Intl

Mon 29/9

07:10-13:15

2 stops22h 05m

£624

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Tue 14/10

16:30-11:35

2 stops27h 05m

Seattle/Tacoma Intl

Mon 20/10

00:34-07:55

2 stops23h 21m

£744

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Sun 21/12

06:15-17:00

1 stop18h 45m

Seattle/Tacoma Intl

Mon 5/1

14:35-18:40

2 stops20h 05m

£878

Flights are sorted by cheapest return flights first.

Deals found on 20/8

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 is the cheapest month to book a flight from Bristol to Seattle?

Currently, January is the cheapest month in which you can book a flight from Bristol to Seattle (average of £622). Flying from Bristol to Seattle in July is currently the most expensive (average of £946). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BRS to SEA?

Find hourly flight availability from Bristol to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 22 August 2025.

A simple way to save on the total cost of your ticket is to fly from Bristol to Seattle at midday. If you’re flexible enough to do this you can expect to save up to 1% on your trip compared to booking a flight in the morning.

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 22 August 2025.
Read through reviews of airlines operating flights from Bristol to Seattle, such as KLM and Virgin Atlantic. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,388 reviews
Check prices

Entertainment

7.1

Comfort

7.7

Food

7.3

Boarding

7.8

Crew

8.4

Overall

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,388 reviews
KLM
7.8
Good
1,388 reviews
Check prices

Entertainment

7.1

Comfort

7.7

Food

7.3

Boarding

7.8

Crew

8.4

Overall

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Virgin Atlantic
7.4
Good
658 reviews
KLM
7.8
Good
1,388 reviews
Check prices

Entertainment

7.1

Comfort

7.7

Food

7.3

Boarding

7.8

Crew

8.4

Overall

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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 30m. 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 are the cheapest airlines flying from Bristol to Seattle round-trip?

    Currently priced at £536, KLM will fly you from Bristol to Seattle and back. In addition to KLM, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Virgin Atlantic for as low as £567. Users have found that KLM is 20% 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.

  • What is the cheapest month to book a flight from Bristol to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Bristol to Seattle (average of £622). Flying from Bristol to Seattle in July is currently the most expensive (average of £946). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
Bothell
SeaTac

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Bristol to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Bristol to Seattle

Discover the top 2 airlines 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 22 August 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£536Average£619FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapest£567Average£649FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic 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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