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Cheap flights from Brighton to Seattle from £375

LHR — SEA
27 Sep — 4 Oct1
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 84 days in advance, depart on a Thursday or Wednesday 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

Thu 22/1021:25 -
1 stop31h 15m
Mon 2/1114:35 -
1 stop12h 15m
Deal found 24/8£483
Thu 24/906:15 -
1 stop13h 00m
Sat 10/1021:50 -
Nonstop9h 45m
Deal found 24/8£485
Mon 31/821:25 -
1 stop22h 20m
Mon 7/915:40 -
1 stop12h 15m
Deal found 23/8£486
Mon 31/815:40 -
1 stop28h 05m
Mon 7/919:00 -
1 stop11h 40m
Deal found 23/8£486
Tue 1/913:00 -
1 stop12h 55m
Sat 31/1015:35 -
1 stop12h 20m
Deal found 24/8£492
Tue 1/921:25 -
1 stop22h 20m
Sat 31/1015:35 -
1 stop12h 15m
Deal found 24/8£492
Thu 8/1015:40 -
1 stop13h 00m
Thu 15/1019:00 -
1 stop11h 40m
Deal found 24/8£497
Wed 30/913:05 -
1 stop12h 50m
Sun 11/1019:00 -
1 stop32h 55m
Deal found 24/8£499
Wed 30/915:40 -
1 stop34h 15m
Thu 8/1019:00 -
1 stop11h 40m
Deal found 24/8£500
Tue 29/915:40 -
1 stop13h 00m
Tue 27/1015:35 -
1 stop12h 20m
Deal found 24/8£500
Thu 8/1013:05 -
1 stop12h 50m
Thu 15/1019:00 -
1 stop32h 55m
Deal found 24/8£500
Tue 29/915:40 -
1 stop13h 00m
Tue 6/1019:00 -
1 stop11h 40m
Deal found 24/8£506

Find flight deals from Brighton to Seattle

Round-trip from

£483

One-way from

£375

Popular in

August

Cheapest in

February

Average price

£632
Icelandair
  • Icelandair
  • 22/10-2/11
  • 2 total stops
  • 43h 30m total
  • Brighton to Seattle
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10/9
  • 10/9
  • 2 total stops
  • 39h 10m total
  • Brighton to Seattle
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£26 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Brighton to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSeattle

LHR London Heathrow - SEA Seattle/Tacoma Intl

LHRSEA

London Heathrow

Thu 24/9

09:50-17:10

1 stop15h 20m

Seattle/Tacoma Intl

Fri 2/10

20:20-13:45

Nonstop9h 25m

£522

LondonSeattle

LHR London Heathrow - SEA Seattle/Tacoma Intl

LHRSEA

London Heathrow

Wed 28/10

06:00-23:17

2 stops24h 17m

Seattle/Tacoma Intl

Fri 6/11

13:16-17:50

2 stops20h 34m

£530

LondonSeattle

LHR London Heathrow - SEA Seattle/Tacoma Intl

LHRSEA

London Heathrow

Tue 22/9

06:30-11:55

1 stop13h 25m

Seattle/Tacoma Intl

Thu 1/10

13:56-11:55

1 stop13h 59m

£533

LondonSeattle

LCY London City - SEA Seattle/Tacoma Intl

LCYSEA

London City

Mon 5/10

08:00-18:32

2 stops18h 32m

Seattle/Tacoma Intl

Mon 19/10

07:00-08:40

2 stops17h 40m

£542

LondonSeattle

LCY London City - SEA Seattle/Tacoma Intl

LCYSEA

London City

Wed 7/10

09:15-18:32

2 stops17h 17m

Seattle/Tacoma Intl

Wed 14/10

15:18-17:25

2 stops18h 07m

£542

LondonSeattle

LCY London City - SEA Seattle/Tacoma Intl

LCYSEA

London City

Thu 29/10

09:15-23:18

2 stops21h 03m

Seattle/Tacoma Intl

Wed 4/11

15:35-17:05

2 stops17h 30m

£545

LondonSeattle

LHR London Heathrow - SEA Seattle/Tacoma Intl

LHRSEA

London Heathrow

Thu 8/10

06:30-11:52

1 stop13h 22m

Seattle/Tacoma Intl

Thu 15/10

17:30-11:20

Nonstop9h 50m

£551

LondonSeattle

LHR London Heathrow - SEA Seattle/Tacoma Intl

LHRSEA

London Heathrow

Thu 24/9

17:45-20:10

Nonstop10h 25m

Seattle/Tacoma Intl

Fri 2/10

17:30-11:20

Nonstop9h 50m

£553

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Thu 8/10

05:40-16:00

2 stops18h 20m

Seattle/Tacoma Intl

Thu 15/10

18:05-23:00

2 stops20h 55m

£559
Fastest return journey

LondonSeattle

LHR London Heathrow - SEA Seattle/Tacoma Intl

LHRSEA

London Heathrow

Thu 1/10

17:00-19:00

Nonstop10h 00m

Seattle/Tacoma Intl

Tue 13/10

21:40-15:05

Nonstop9h 25m

£562

Flights are sorted by cheapest return flights first.

Deals found on 25/8

Showing 1-10 of 60 resultsSorted by cheapest first
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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

Cheapflights Insights

Everything you need to know about your flight from Brighton to Seattle

What is the cheapest time of day to fly from BH9 to SEA?

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

The most flights from BH9 to SEA are scheduled on a Wednesday (24 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (13 on average).

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

Airfare is typical for this route at the moment.
Brighton to Seattle flights typically cost between £472 and £625 in October.
The cheapest return price found within the last 5 days was £483 on Icelandair (22 Oct–2 Nov).

Reviews of airlines servicing Seattle

See what other customers who have flown with Alaska Airlines,KLM, andVirgin Atlantic 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.
Alaska Airlines
7.9
Good
12,855 reviews
Check prices

Overall

7.9

Comfort

7.8

Food

7.0

Entertainment

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.
Alaska Airlines
7.9
Good
12,855 reviews
Alaska Airlines
7.9
Good
12,855 reviews
Check prices

Overall

7.9

Comfort

7.8

Food

7.0

Entertainment

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.
KLM
7.8
Good
1,566 reviews
Alaska Airlines
7.9
Good
12,855 reviews
Check prices

Overall

7.9

Comfort

7.8

Food

7.0

Entertainment

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.
Virgin Atlantic
7.4
Good
695 reviews
Alaska Airlines
7.9
Good
12,855 reviews
Check prices

Overall

7.9

Comfort

7.8

Food

7.0

Entertainment

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.
Icelandair
6.9
Okay
738 reviews
Alaska Airlines
7.9
Good
12,855 reviews
Check prices

Overall

7.9

Comfort

7.8

Food

7.0

Entertainment

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.
British Airways
6.7
Okay
8,191 reviews
Alaska Airlines
7.9
Good
12,855 reviews
Check prices

Overall

7.9

Comfort

7.8

Food

7.0

Entertainment

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.

Related info for your journey

  • 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. 12 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 20 inbound flights from Brighton per day.

  • How long is the flight from Brighton to Seattle?

    For as low as £533, British Airways can have you in Seattle from Brighton in 13h 25m. 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 British Airways, which is currently one of the cheapest options available, starting at £332. Icelandair flights start at £335 while deals on Virgin Atlantic start at £362 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 Scandinavian Airlines (82%), American Airlines (75%) or KLM (75%) 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 £313. While the most popular route (London Heathrow - Seattle/Tacoma Intl) can be booked for £383 on average, our data indicates £1,420 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.

See more FAQs

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Federal Way
SeaTac

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Top 10 airlines flying from Brighton to Seattle

AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£331Average£368FlexibilityNo cancel feeOn-time76%
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IcelandairCheapest£337Average£503FlexibilityNo cancel feeOn-time76%
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Aer LingusCheapest£387Average£628FlexibilityNo cancel feeOn-timeN/A
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United AirlinesCheapest£413Average£484FlexibilityNo cancel feeOn-time69%
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Virgin AtlanticCheapest£418Average£587FlexibilityNo cancel feeOn-time72%
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KLMCheapest£429Average£606FlexibilityNo cancel feeOn-time75%
Search KLM flights
DeltaCheapest£436Average£643FlexibilityNo cancel feeOn-timeN/A
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Air FranceCheapest£445Average£616FlexibilityNo cancel feeOn-time77%
Search Air France flights
British AirwaysCheapest£448Average£626FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Alaska AirlinesCheapest£465Average£598FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

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