Cheap flights from Brighton to Seattle from £377

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 15/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEA
27 Jan — 3 Feb1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Brighton to Seattle/Tacoma Intl are usually found in February or January, booked 90 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Brighton to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Brighton to Seattle
Explore the most affordable flight options available from Brighton to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 December 2025.

Tue 30/1215:00LHR - SEA
1 stop16h 08mBritish Airways
Tue 13/108:35SEA - LHR
1 stop19h 40mBritish Airways
Deal found 26/12£717
Tue 30/1215:00LHR - SEA
1 stop17h 57mBritish Airways
Wed 7/111:55SEA - LHR
1 stop36h 40mBritish Airways
Deal found 26/12£717
Tue 30/1215:00LHR - SEA
1 stop17h 57mBritish Airways
Sun 4/107:07SEA - LHR
1 stop18h 53mBritish Airways
Deal found 26/12£729
Mon 29/1214:55LHR - SEA
Nonstop10h 00mAmerican Airlines
Tue 13/111:55SEA - LHR
1 stop14h 05mAmerican Airlines
Deal found 26/12£739
Mon 29/1214:55LHR - SEA
Nonstop10h 00mAmerican Airlines
Fri 16/112:45SEA - LHR
1 stop15h 15mAmerican Airlines
Deal found 26/12£740
Tue 30/1210:15LHR - SEA
1 stop19h 49mBritish Airways
Thu 8/114:10SEA - LHR
2 stops58h 15mBritish Airways
Deal found 26/12£745
Mon 29/1213:25LHR - SEA
2 stops28h 06mAir Canada
Fri 16/115:40SEA - LHR
1 stop12h 10mAir Canada
Deal found 26/12£769
Mon 29/1214:55LHR - SEA
Nonstop10h 00mBritish Airways
Sat 17/118:50SEA - LHR
Nonstop9h 30mBritish Airways
Deal found 26/12£774
Mon 29/1211:55LHR - SEA
1 stop17h 16mBritish Airways
Sun 18/111:55SEA - LHR
1 stop15h 45mBritish Airways
Deal found 26/12£777
Fri 26/1209:25LHR - SEA
Nonstop10h 05mAmerican Airlines
Wed 31/1211:20SEA - LHR
1 stop12h 55mAmerican Airlines
Deal found 26/12£780
Mon 29/1219:10LCY - SEA
2 stops35h 37mSWISS
Tue 13/110:58SEA - LCY
2 stops17h 57mSWISS
Deal found 26/12£833
Mon 29/1219:10LCY - SEA
2 stops35h 37mSWISS
Thu 15/110:58SEA - LCY
2 stops40h 42mSWISS
Deal found 26/12£834

Find flight deals from Brighton to Seattle

Keep the following information in mind while searching for Brighton to Seattle flight deals. Data was last updated 28 December 2025.

Round-trip from

£410

One-way from

£377

Popular in

July

Cheapest in

February

Average price

£632
Air Canada
  • Air Canada
  • 24/1-27/1
  • 3 total stops
  • 37h 06m total
  • Brighton to Seattle
WestJet
  • WestJet
  • 15/5
  • 2 total stops
  • 41h 28m total
  • Brighton to Seattle
Highest demand for flights based on searches. 13% potential increase in price (£59 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Average for round-trip flights in December 2025

Cheapflights Fare Finder

 
Customise your flight search to find flights from Brighton 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 28 December 2025.
Use the filters below to find and compare flights from Brighton to Seattle that are best for you.

Fly from

Brighton

Fly to

Seattle

Route

Depart

Return

Price

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 22/1

14:30-09:15

1 stop26h 45m

Seattle/Tacoma Intl

Mon 26/1

08:40-09:10

2 stops16h 30m

£410

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 12/1

06:00-22:43

2 stops24h 43m

Seattle/Tacoma Intl

Mon 26/1

12:35-17:50

2 stops21h 15m

£412

LondonSeattle

LCY - SEA

LCYSEA

London City

Wed 14/1

09:20-21:12

2 stops19h 52m

Seattle/Tacoma Intl

Sun 1/2

12:35-17:10

2 stops20h 35m

£413

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Fri 6/2

06:30-11:40

1 stop13h 10m

Seattle/Tacoma Intl

Tue 24/3

17:40-10:30

Nonstop9h 50m

£415

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Sat 17/1

06:30-11:50

1 stop13h 20m

Seattle/Tacoma Intl

Thu 22/1

16:45-10:30

Nonstop9h 45m

£415

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Fri 13/2

06:30-11:40

1 stop13h 10m

Seattle/Tacoma Intl

Thu 19/2

18:25-11:55

Nonstop9h 30m

£415

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Fri 6/2

06:30-11:40

1 stop13h 10m

Seattle/Tacoma Intl

Thu 12/2

16:55-10:30

Nonstop9h 35m

£415

LondonSeattle

LCY - SEA

LCYSEA

London City

Tue 27/1

17:05-11:50

1 stop26h 45m

Seattle/Tacoma Intl

Mon 23/2

15:05-16:35

1 stop17h 30m

£419

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 15/1

06:20-11:25

1 stop13h 05m

Seattle/Tacoma Intl

Tue 20/1

16:45-10:30

Nonstop9h 45m

£419

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Sun 18/1

20:35-17:00

1 stop28h 25m

Seattle/Tacoma Intl

Thu 22/1

14:35-10:50

1 stop12h 15m

£421

Flights are sorted by cheapest return flights first.

Deals found on 27/12

Showing 1-10 of 60 results
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Best time to book a flight from Brighton to Seattle

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

How far ahead should I book a flight from Brighton to Seattle?

Use this chart to determine the optimal time to book a return flight from Brighton to Seattle. Price data was last updated on 26 December 2025.

The price you pay for your flight from Brighton to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 90 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, March is the cheapest month in which you can book a flight from Brighton to Seattle (average of £302). Flying from Brighton to Seattle in August is currently the most expensive (average of £457). 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 BH9 to SEA?

Find hourly flight availability from Brighton 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 28 December 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Brighton to Seattle as you normally would.

Weekly flight availability from Brighton to Seattle

Explore weekly flight availability from Brighton to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 28 December 2025.

The most flights from BH9 to SEA are scheduled on a Saturday (21 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (6 on average).

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 28 December 2025.
See what other customers who have flown with KLM, Virgin Atlantic, andAir France from Brighton to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.1

Overall

7.7

Boarding

7.7

Crew

8.4

Comfort

7.6

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Entertainment

7.1

Overall

7.7

Boarding

7.7

Crew

8.4

Comfort

7.6

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Entertainment

7.1

Overall

7.7

Boarding

7.7

Crew

8.4

Comfort

7.6

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Entertainment

7.1

Overall

7.7

Boarding

7.7

Crew

8.4

Comfort

7.6

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Entertainment

7.1

Overall

7.7

Boarding

7.7

Crew

8.4

Comfort

7.6

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Entertainment

7.1

Overall

7.7

Boarding

7.7

Crew

8.4

Comfort

7.6

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Related info for your journey

Find useful and relevant information for your journey from Brighton to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Seattle from Brighton?

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly into when you book flights from Brighton to Seattle. 14 airlines have flights to Seattle/Tacoma Intl from Brighton on a regular basis. Booking flights from Brighton to Seattle/Tacoma Intl should not be difficult; the airport handles an average of 13 inbound flights from Brighton per day.

  • How long is the flight from Brighton to Seattle?

    For as low as £415, United Airlines can have you in Seattle from Brighton in 13h 10m. Brighton and Seattle are separated by a distance of 4783 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Brighton to Seattle one-way?

    To fly one-way, consider booking your trip with WestJet, which is currently one of the cheapest options available, starting at £250. British Airways flights start at £368 while deals on Icelandair start at £374 one-way.

  • What are the most popular routes from Brighton to Seattle?

  • What are the most reliable airlines from Brighton to Seattle?

    No one likes to see their flight delayed. When booking a flight from Brighton to Seattle consider choosing Scandinavian Airlines (97%), Air France (93%) or Delta (90%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Brighton to Seattle?

    Looking at all options, your cheapest flight can be booked for £409. While the most popular route (London Heathrow - Seattle/Tacoma Intl) can be booked for £235 on average, our data indicates £1,656 when flying from Brighton to Seattle.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Brighton 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 Brighton to Seattle?

    Currently, March is the cheapest month in which you can book a flight from Brighton to Seattle (average of £302). Flying from Brighton to Seattle in August is currently the most expensive (average of £457). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 10 airlines flying from Brighton to Seattle

Discover the top 10 airlines that operate flights from Brighton 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 28 December 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£323Average£476FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air FranceCheapest£384Average£610FlexibilityNo cancel feeOn-time77%
Search Air France flights
KLMCheapest£392Average£562FlexibilityNo cancel feeOn-time75%
Search KLM flights
LufthansaCheapest£393Average£479FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£403Average£635FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest£409Average£577FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Aer LingusCheapest£415Average£666FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Virgin AtlanticCheapest£433Average£582FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£435Average£595FlexibilityNo cancel feeOn-time70%
Search British Airways flights
DeltaCheapest£442Average£579FlexibilityNo cancel feeOn-timeN/A
Search Delta 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 Brighton to Seattle?

When you search for this flight from Brighton 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 Brighton to Seattle?

Millions of users choose and trust Cheapflights to book the best flight deals from Brighton 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 Brighton to Seattle with no change fees?

Certainly. Search results for flights to Seattle from Brighton shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Seattle from Brighton today and book when prices fit your budget.

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