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Cheap flights from Brighton to Seattle from £424

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 17/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEA
24 Jul — 31 Jul1
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 83 days in advance, depart on a Wednesday or Thursday 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 24 June 2026.

Sat 17/1009:50
LHR
-
SEA
Nonstop9h 45m
Finnair
Sun 1/1118:50
SEA
-
LHR
Nonstop9h 30m
Finnair
Deal found 23/6£474
Thu 9/709:00
LHR
-
SEA
1 stop15h 59m
United Airlines
Thu 30/715:40
SEA
-
LHR
1 stop12h 45m
United Airlines
Deal found 23/6£475
Sat 27/617:45
LHR
-
SEA
Nonstop10h 16m
Virgin Atlantic
Fri 10/722:40
SEA
-
LHR
1 stop23h 40m
Virgin Atlantic
Deal found 23/6£476
Sun 20/906:30
LHR
-
SEA
1 stop13h 25m
Lufthansa
Sat 26/913:56
SEA
-
LHR
1 stop13h 59m
Lufthansa
Deal found 22/6£477
Thu 15/1012:00
LHR
-
SEA
1 stop13h 10m
British Airways
Mon 19/1020:20
SEA
-
LHR
Nonstop9h 25m
British Airways
Deal found 23/6£477
Sun 20/906:20
LHR
-
SEA
1 stop18h 50m
British Airways
Sat 26/913:30
SEA
-
LHR
Nonstop9h 15m
British Airways
Deal found 22/6£478
Sat 4/717:45
LHR
-
SEA
Nonstop10h 18m
Virgin Atlantic
Mon 13/722:40
SEA
-
LHR
1 stop13h 30m
Virgin Atlantic
Deal found 19/6£479
Sun 4/1015:40
LGW
-
SEA
1 stop34h 15m
Icelandair
Fri 9/1015:40
SEA
-
LGW
1 stop15h 00m
Icelandair
Deal found 23/6£480
Fri 28/809:50
LHR
-
SEA
Nonstop9h 45m
British Airways
Sat 5/920:20
SEA
-
LHR
Nonstop9h 25m
British Airways
Deal found 23/6£480
Tue 27/1014:55
LHR
-
SEA
Nonstop10h 00m
British Airways
Sun 8/1118:50
SEA
-
LHR
Nonstop9h 30m
British Airways
Deal found 22/6£480
Mon 7/915:40
LGW
-
SEA
1 stop34h 15m
Icelandair
Wed 16/915:40
SEA
-
LGW
1 stop15h 00m
Icelandair
Deal found 21/6£481
Thu 1/1006:50
LHR
-
SEA
2 stops19h 29m
United Airlines
Tue 13/1008:10
SEA
-
LHR
2 stops18h 15m
United Airlines
Deal found 20/6£481

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 24 June 2026.

Round-trip from

£474

One-way from

£424

Popular in

July

Cheapest in

February

Average price

£633
Finnair
  • Finnair
  • 17/10-1/11
  • Nonstop
  • 19h 15m total
  • Brighton to Seattle
Search Deals
17/8
  • 17/8
  • 2 total stops
  • 19h 00m total
  • Brighton to Seattle
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£53 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 24 June 2026.
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 - SEA

LHRSEA

London Heathrow

Thu 1/10

06:50-18:19

2 stops19h 29m

Seattle/Tacoma Intl

Tue 13/10

08:10-10:25

2 stops18h 15m

£481

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Fri 3/7

09:30-23:44

1 stop22h 14m

Seattle/Tacoma Intl

Thu 23/7

15:40-12:25

1 stop12h 45m

£504

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 8/7

09:45-20:37

1 stop18h 52m

Seattle/Tacoma Intl

Mon 20/7

13:30-06:45

Nonstop9h 15m

£506

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 8/7

08:00-19:03

2 stops19h 03m

Seattle/Tacoma Intl

Wed 22/7

10:52-11:55

1 stop17h 03m

£509

LondonSeattle

LCY - SEA

LCYSEA

London City

Thu 15/10

06:45-17:10

1 stop18h 25m

Seattle/Tacoma Intl

Mon 19/10

19:10-20:45

1 stop17h 35m

£512

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Sun 23/8

18:30-20:46

Nonstop10h 16m

Seattle/Tacoma Intl

Wed 2/9

21:50-15:35

Nonstop9h 45m

£527

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 20/8

06:30-11:37

1 stop13h 07m

Seattle/Tacoma Intl

Tue 1/9

18:20-12:10

Nonstop9h 50m

£533

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Fri 14/8

10:25-17:34

1 stop15h 09m

Seattle/Tacoma Intl

Thu 20/8

18:40-16:00

1 stop13h 20m

£536

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 20/8

17:45-20:03

Nonstop10h 18m

Seattle/Tacoma Intl

Sat 29/8

21:45-15:35

Nonstop9h 50m

£539

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 10/8

08:00-16:09

1 stop16h 09m

Seattle/Tacoma Intl

Wed 19/8

15:54-12:35

1 stop12h 41m

£555

Flights are sorted by cheapest return flights first.

Deals found on 19/6

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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

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 24 June 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 24 June 2026.

The most flights from BH9 to SEA are scheduled on a Monday (22 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (17 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 24 June 2026.
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
12,565 reviews
Check prices

Food

7.0

Overall

7.9

Entertainment

7.0

Boarding

8.1

Crew

8.5

Comfort

7.8

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
12,565 reviews
Alaska Airlines
7.9
Good
12,565 reviews
Check prices

Food

7.0

Overall

7.9

Entertainment

7.0

Boarding

8.1

Crew

8.5

Comfort

7.8

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
1,530 reviews
Alaska Airlines
7.9
Good
12,565 reviews
Check prices

Food

7.0

Overall

7.9

Entertainment

7.0

Boarding

8.1

Crew

8.5

Comfort

7.8

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
7.5
Good
690 reviews
Alaska Airlines
7.9
Good
12,565 reviews
Check prices

Food

7.0

Overall

7.9

Entertainment

7.0

Boarding

8.1

Crew

8.5

Comfort

7.8

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
7.0
Good
686 reviews
Alaska Airlines
7.9
Good
12,565 reviews
Check prices

Food

7.0

Overall

7.9

Entertainment

7.0

Boarding

8.1

Crew

8.5

Comfort

7.8

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
8,068 reviews
Alaska Airlines
7.9
Good
12,565 reviews
Check prices

Food

7.0

Overall

7.9

Entertainment

7.0

Boarding

8.1

Crew

8.5

Comfort

7.8

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

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 21 inbound flights from Brighton per day.

  • How long is the flight from Brighton to Seattle?

    For as low as £527, United Airlines can have you in Seattle from Brighton in 10h 16m. 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 £358. British Airways flights start at £370 while deals on KLM start at £398 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 (85%), Air France (85%) or Delta (85%) 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 £385. While the most popular route (London Heathrow - Seattle/Tacoma Intl) can be booked for £380 on average, our data indicates £1,696 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
Tacoma
Federal Way
SeaTac

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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 24 June 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£340Average£514FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IcelandairCheapest£348Average£507FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapest£424Average£664FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Virgin AtlanticCheapest£436Average£598FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
KLMCheapest£444Average£641FlexibilityNo cancel feeOn-time75%
Search KLM flights
DeltaCheapest£448Average£628FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air FranceCheapest£457Average£667FlexibilityNo cancel feeOn-time77%
Search Air France flights
British AirwaysCheapest£466Average£648FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£474Average£650FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest£481Average£685FlexibilityNo cancel feeOn-time76%
Search Finnair 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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