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Cheap flights from Brighton to Seattle from £350

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 30/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEA
20 Feb — 27 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 75 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 21 January 2026.

Mon 2/213:25
LHR
-
SEA
2 stops28h 06m
Air Canada
Mon 16/205:45
SEA
-
LHR
2 stops17h 25m
Air Canada
Deal found 20/1£375
Tue 17/220:15
LHR
-
SEA
1 stop25h 05m
Lufthansa
Tue 24/209:55
SEA
-
LHR
2 stops16h 15m
Lufthansa
Deal found 20/1£377
Sun 8/319:30
LHR
-
SEA
1 stop24h 40m
Multiple Airlines
Sat 21/308:00
SEA
-
LHR
1 stop15h 40m
Multiple Airlines
Deal found 20/1£378
Fri 24/413:05
LHR
-
SEA
1 stop15h 35m
Icelandair
Sun 3/519:00
SEA
-
LHR
1 stop17h 20m
Icelandair
Deal found 20/1£378
Thu 30/409:25
LGW
-
SEA
2 stops22h 04m
SWISS
Tue 12/509:55
SEA
-
LGW
2 stops23h 55m
SWISS
Deal found 20/1£379
Fri 27/206:35
LHR
-
SEA
1 stop14h 45m
United Airlines
Sat 14/309:20
SEA
-
LHR
1 stop15h 05m
United Airlines
Deal found 20/1£379
Tue 14/415:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Thu 4/619:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Deal found 20/1£380
Wed 11/206:00
LHR
-
SEA
2 stops23h 12m
SWISS
Wed 18/207:00
SEA
-
LHR
1 stop16h 55m
SWISS
Deal found 20/1£380
Tue 3/311:55
LGW
-
SEA
1 stop13h 05m
Icelandair
Mon 16/315:35
SEA
-
LGW
1 stop12h 20m
Icelandair
Deal found 20/1£381
Fri 24/407:25
LHR
-
SEA
1 stop17h 34m
United Airlines
Mon 11/515:40
SEA
-
LHR
1 stop12h 40m
United Airlines
Deal found 20/1£381
Sat 2/506:00
LHR
-
SEA
2 stops21h 00m
SWISS
Mon 11/509:55
SEA
-
LHR
2 stops27h 50m
SWISS
Deal found 20/1£381
Tue 28/406:30
LHR
-
SEA
1 stop13h 50m
Lufthansa
Sun 3/508:00
SEA
-
LHR
1 stop14h 55m
Lufthansa
Deal found 20/1£382

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 21 January 2026.

Round-trip from

£375

One-way from

£350

Popular in

July

Cheapest in

February

Average price

£479
Air Canada
  • Air Canada
  • 2/2-16/2
  • 4 total stops
  • 45h 31m total
  • Brighton to Seattle
Search Deals
30/3
  • 30/3
  • 3 total stops
  • 47h 01m total
  • Brighton to Seattle
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£59 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 21 January 2026.
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

LGW - SEA

LGWSEA

London Gatwick

Fri 1/5

09:25-23:29

2 stops22h 04m

Seattle/Tacoma Intl

Tue 12/5

09:55-17:50

2 stops23h 55m

£379

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Thu 30/4

09:25-23:29

2 stops22h 04m

Seattle/Tacoma Intl

Tue 12/5

09:55-17:50

2 stops23h 55m

£379

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 29/4

07:25-16:59

1 stop17h 34m

Seattle/Tacoma Intl

Mon 4/5

11:39-11:10

1 stop15h 31m

£381

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 10/3

06:30-13:10

1 stop13h 40m

Seattle/Tacoma Intl

Tue 17/3

08:59-08:25

2 stops16h 26m

£381

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Sat 2/5

06:30-12:20

1 stop13h 50m

Seattle/Tacoma Intl

Sun 10/5

08:00-06:55

1 stop14h 55m

£382

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 30/4

06:30-12:20

1 stop13h 50m

Seattle/Tacoma Intl

Tue 12/5

07:00-06:45

1 stop15h 45m

£382

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 10/3

06:30-12:35

1 stop13h 05m

Seattle/Tacoma Intl

Tue 17/3

19:25-11:55

Nonstop9h 30m

£384

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 24/2

06:30-11:40

1 stop13h 10m

Seattle/Tacoma Intl

Tue 3/3

16:45-10:30

Nonstop9h 45m

£384

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 2/2

06:30-11:40

1 stop13h 10m

Seattle/Tacoma Intl

Mon 16/2

18:25-11:55

Nonstop9h 30m

£384

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 17/2

06:30-11:40

1 stop13h 10m

Seattle/Tacoma Intl

Tue 24/2

18:25-11:55

Nonstop9h 30m

£384

Flights are sorted by cheapest return flights first.

Deals found on 20/1

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 16 January 2026.

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 75 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 £303). Flying from Brighton to Seattle in August is currently the most expensive (average of £459). 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 21 January 2026.

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 21 January 2026.

The most flights from BH9 to SEA are scheduled on a Tuesday (21 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (11 on average).

How much does it cost for a return flight from Brighton to Seattle?

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 21 January 2026.
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.
KLM
7.7
Good
1,442 reviews
Check prices

Crew

8.4

Comfort

7.6

Food

7.3

Boarding

7.8

Overall

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,442 reviews
KLM
7.7
Good
1,442 reviews
Check prices

Crew

8.4

Comfort

7.6

Food

7.3

Boarding

7.8

Overall

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Virgin Atlantic
7.5
Good
678 reviews
KLM
7.7
Good
1,442 reviews
Check prices

Crew

8.4

Comfort

7.6

Food

7.3

Boarding

7.8

Overall

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Air France
7.4
Good
1,524 reviews
KLM
7.7
Good
1,442 reviews
Check prices

Crew

8.4

Comfort

7.6

Food

7.3

Boarding

7.8

Overall

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Icelandair
7.1
Good
602 reviews
KLM
7.7
Good
1,442 reviews
Check prices

Crew

8.4

Comfort

7.6

Food

7.3

Boarding

7.8

Overall

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
British Airways
6.7
Okay
7,690 reviews
KLM
7.7
Good
1,442 reviews
Check prices

Crew

8.4

Comfort

7.6

Food

7.3

Boarding

7.8

Overall

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

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 14 inbound flights from Brighton per day.

  • How long is the flight from Brighton to Seattle?

    For as low as £382, SWISS can have you in Seattle from Brighton in 13h 50m. 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 Icelandair, which is currently one of the cheapest options available, starting at £359. British Airways flights start at £370 while deals on Aer Lingus start at £386 one-way.

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

    The most popular route from Brighton to Seattle is London Heathrow - Seattle/Tacoma Intl. You may also consider London Gatwick - Seattle/Tacoma Intl or London City - Seattle/Tacoma Intl.

  • 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 KLM (89%), Air France (89%) or Delta (89%) 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 £398. While the most popular route (London Heathrow - Seattle/Tacoma Intl) can be booked for £323 on average, our data indicates £1,571 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 £303). Flying from Brighton to Seattle in August is currently the most expensive (average of £459). 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
Federal Way
SeaTac

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Brighton to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Seattle flights
Gatwick to Seattle flights
London City to Seattle flights
Stansted to Seattle flights
Heathrow to Portland flights
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Manchester to Seattle flights
Edinburgh to Seattle flights
Gatwick to Portland flights
Stansted to Portland flights
London City to Portland flights
Birmingham to Seattle flights
Heathrow to Pasco flights
Bristol to Seattle flights
Manchester to Portland flights
Heathrow to Spokane flights
Leeds to Seattle flights
Gatwick to Spokane flights
Southampton to Seattle flights
Luton to Portland flights
Newcastle upon Tyne to Seattle flights
Leeds to Portland flights
Edinburgh to Portland flights
Bristol to Portland flights
Manchester to Spokane flights
Newquay to Seattle flights
Birmingham to Portland flights
Southend to Seattle flights
London City to Spokane flights
Edinburgh to Pasco flights
Birmingham to Spokane flights
Grimsby to Portland flights
Heathrow to Bellingham flights

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 21 January 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£335Average£484FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IcelandairCheapest£346Average£479FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapest£417Average£670FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Air CanadaCheapest£420Average£497FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air FranceCheapest£420Average£627FlexibilityNo cancel feeOn-time77%
Search Air France flights
KLMCheapest£429Average£568FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£429Average£639FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AtlanticCheapest£430Average£581FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapest£436Average£583FlexibilityNo cancel feeOn-time76%
Search Finnair flights
British AirwaysCheapest£444Average£599FlexibilityNo cancel feeOn-time70%
Search British Airways 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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