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Cheap flights from Bristol to Seattle from £404

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/1. Fares are subject to change and may not be available on all flights or dates of travel.
BRS — SEA
1 Jan — 8 Jan1
1 adult
1 adult, Economy, 0 bags

Find 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 2 December 2025.

Sun 21/1217:35BRS - SEA
2 stops27h 50mKLM
Mon 5/121:45SEA - BRS
2 stops28h 30mKLM
Deal found 29/11£1,226
Sun 21/1206:00BRS - SEA
2 stops20h 36mDelta
Mon 5/107:10SEA - BRS
2 stops19h 05mDelta
Deal found 30/11£1,231
Sun 21/1217:35BRS - SEA
2 stops27h 50mMultiple Airlines
Mon 5/115:10SEA - BRS
1 stop23h 00mMultiple Airlines
Deal found 30/11£1,281

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 2 December 2025.

Round-trip from

£404

Popular in

April

Cheapest in

March

Average price

£794
14/1-21/1
  • 14/1-21/1
  • 4 total stops
  • 30h 50m total
  • Bristol to Seattle
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (£6 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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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 2 December 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

Thu 15/1

09:00-17:00

2 stops16h 00m

Seattle/Tacoma Intl

Thu 22/1

14:35-15:45

2 stops17h 10m

£437

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Wed 14/1

06:00-11:50

1 stop13h 50m

Seattle/Tacoma Intl

Wed 21/1

15:10-22:10

1 stop23h 00m

£553

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Thu 15/1

17:35-11:50

1 stop26h 15m

Seattle/Tacoma Intl

Thu 22/1

15:10-16:55

1 stop17h 45m

£571

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Wed 14/1

06:00-11:50

1 stop13h 50m

Seattle/Tacoma Intl

Sun 18/1

23:10-16:55

2 stops33h 45m

£583

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Mon 2/3

08:20-18:20

1 stop18h 00m

Seattle/Tacoma Intl

Fri 27/3

21:05-06:55

1 stop26h 50m

£584

BristolSeattle

BRS - SEA

BRSSEA

Bristol

Wed 14/1

10:45-21:49

2 stops19h 04m

Seattle/Tacoma Intl

Sun 18/1

22:25-22:10

2 stops39h 45m

£587

Flights are sorted by cheapest return flights first.

Deals found on 1/12

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, February is the cheapest month in which you can book a flight from Bristol to Seattle (average of £430). Flying from Bristol to Seattle in April is currently the most expensive (average of £940). 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.

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 2 December 2025.
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
1,425 reviews
Check prices

Overall

7.7

Food

7.2

Comfort

7.6

Crew

8.4

Entertainment

7.1

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,425 reviews
KLM
7.7
Good
1,425 reviews
Check prices

Overall

7.7

Food

7.2

Comfort

7.6

Crew

8.4

Entertainment

7.1

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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 50m. The distance between Bristol and Seattle is about 4727 mi.

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

    Currently priced at £544, 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 23% 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, February is the cheapest month in which you can book a flight from Bristol to Seattle (average of £430). Flying from Bristol to Seattle in April is currently the most expensive (average of £940). 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
SeaTac

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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 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 2 December 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£544Average£623FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

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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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