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Cheap flights from Brighton to Seattle from £415

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 23/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEA
16 Aug — 23 Aug1
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 Thursday or Wednesday and return on a Thursday

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 17 July 2026.

Thu 12/1107:30
LHR
-
SEA
2 stops21h 19m
United Airlines
Thu 12/1123:16
SEA
-
LHR
2 stops23h 54m
United Airlines
Deal found 16/7£444
Tue 1/909:50
LHR
-
SEA
Nonstop9h 45m
British Airways
Fri 18/913:30
SEA
-
LHR
Nonstop9h 15m
British Airways
Deal found 14/7£445
Fri 16/1015:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Mon 19/1015:40
SEA
-
LGW
1 stop15h 00m
Icelandair
Deal found 17/7£446
Fri 14/810:45
LHR
-
SEA
1 stop19h 20m
Delta
Sat 22/821:45
SEA
-
LHR
Nonstop9h 50m
Delta
Deal found 13/7£446
Mon 10/809:50
LHR
-
SEA
Nonstop9h 45m
British Airways
Thu 20/813:30
SEA
-
LHR
Nonstop9h 15m
British Airways
Deal found 13/7£447
Tue 1/913:00
LGW
-
SEA
1 stop12h 55m
Icelandair
Sat 31/1015:35
SEA
-
LGW
1 stop12h 20m
Icelandair
Deal found 16/7£448
Thu 13/809:50
LHR
-
SEA
Nonstop9h 45m
British Airways
Wed 19/820:20
SEA
-
LHR
Nonstop9h 25m
British Airways
Deal found 13/7£448
Sun 30/815:40
LGW
-
SEA
1 stop28h 05m
Icelandair
Sun 6/919:00
SEA
-
LGW
1 stop32h 45m
Icelandair
Deal found 16/7£449
Wed 9/913:05
LHR
-
SEA
1 stop12h 50m
Multiple Airlines
Tue 4/507:55
SEA
-
LHR
2 stops17h 10m
Multiple Airlines
Deal found 14/7£449
Tue 11/816:30
LHR
-
SEA
Nonstop9h 55m
British Airways
Sun 23/820:20
SEA
-
LHR
Nonstop9h 25m
British Airways
Deal found 13/7£449
Sun 30/821:25
LHR
-
SEA
1 stop28h 30m
Icelandair
Sun 6/919:00
SEA
-
LHR
1 stop17h 20m
Icelandair
Deal found 16/7£450
Tue 1/1212:15
LHR
-
SEA
1 stop12h 45m
Icelandair
Tue 15/1214:35
SEA
-
LHR
1 stop12h 15m
Icelandair
Deal found 16/7£451

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 17 July 2026.

Round-trip from

£444

One-way from

£415

Popular in

December

Cheapest in

February

Average price

£623
United Airlines
  • United Airlines
  • 12/11-12/11
  • 4 total stops
  • 45h 13m total
  • Brighton to Seattle
Search Deals
23/8
  • 23/8
  • 2 total stops
  • 17h 50m total
  • Brighton to Seattle
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 17 July 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

LGW - SEA

LGWSEA

London Gatwick

Sun 1/11

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Tue 17/11

14:35-10:55

1 stop12h 20m

£475

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Sun 6/9

14:50-11:44

1 stop28h 54m

Seattle/Tacoma Intl

Sat 19/9

15:54-12:25

1 stop12h 31m

£554

LondonSeattle

LCY - SEA

LCYSEA

London City

Mon 21/9

20:15-11:47

1 stop23h 32m

Seattle/Tacoma Intl

Mon 5/10

17:45-16:40

1 stop14h 55m

£562

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Sun 6/9

09:50-11:35

Nonstop9h 45m

Seattle/Tacoma Intl

Sat 19/9

20:20-13:45

Nonstop9h 25m

£566

LondonSeattle

LCY - SEA

LCYSEA

London City

Tue 3/11

18:55-11:47

1 stop24h 52m

Seattle/Tacoma Intl

Tue 17/11

06:00-07:15

2 stops17h 15m

£569
Fastest return journey

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Fri 4/9

09:50-11:35

Nonstop9h 45m

Seattle/Tacoma Intl

Sat 19/9

13:30-06:45

Nonstop9h 15m

£570

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Tue 1/9

09:40-17:55

2 stops16h 15m

Seattle/Tacoma Intl

Tue 8/9

15:40-15:30

2 stops15h 50m

£578

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 24/8

08:55-16:41

1 stop15h 46m

Seattle/Tacoma Intl

Tue 1/9

20:20-13:45

Nonstop9h 25m

£580

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Fri 4/9

09:50-11:35

Nonstop9h 45m

Seattle/Tacoma Intl

Mon 7/9

13:30-06:45

Nonstop9h 15m

£589

LondonSeattle

LCY - SEA

LCYSEA

London City

Mon 7/12

09:20-20:27

2 stops19h 07m

Seattle/Tacoma Intl

Tue 15/12

06:00-08:50

2 stops18h 50m

£610

Flights are sorted by cheapest return flights first.

Deals found on 14/7

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 17 July 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 17 July 2026.

The most flights from BH9 to SEA are scheduled on a Tuesday (24 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (18 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 17 July 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
12,667 reviews
Check prices

Boarding

8.1

Food

7.0

Crew

8.5

Overall

7.9

Entertainment

7.0

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
12,667 reviews
Alaska Airlines
7.9
Good
12,667 reviews
Check prices

Boarding

8.1

Food

7.0

Crew

8.5

Overall

7.9

Entertainment

7.0

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
1,541 reviews
Alaska Airlines
7.9
Good
12,667 reviews
Check prices

Boarding

8.1

Food

7.0

Crew

8.5

Overall

7.9

Entertainment

7.0

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
693 reviews
Alaska Airlines
7.9
Good
12,667 reviews
Check prices

Boarding

8.1

Food

7.0

Crew

8.5

Overall

7.9

Entertainment

7.0

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
709 reviews
Alaska Airlines
7.9
Good
12,667 reviews
Check prices

Boarding

8.1

Food

7.0

Crew

8.5

Overall

7.9

Entertainment

7.0

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
8,121 reviews
Alaska Airlines
7.9
Good
12,667 reviews
Check prices

Boarding

8.1

Food

7.0

Crew

8.5

Overall

7.9

Entertainment

7.0

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. 13 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 23 inbound flights from Brighton per day.

  • How long is the flight from Brighton to Seattle?

    For as low as £475, Icelandair can have you in Seattle from Brighton in 13h 05m. Brighton and Seattle are separated by a distance of 4807 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 £351. British Airways flights start at £362 while deals on KLM start at £389 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 Stansted - 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 (88%), KLM (79%) or Air France (79%) 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 £342. While the most popular route (London Heathrow - Seattle/Tacoma Intl) can be booked for £344 on average, our data indicates £1,415 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 17 July 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£332Average£523FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IcelandairCheapest£339Average£500FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapest£389Average£613FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Virgin AtlanticCheapest£421Average£583FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapest£428Average£636FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£434Average£610FlexibilityNo cancel feeOn-time75%
Search KLM flights
DeltaCheapest£438Average£634FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air FranceCheapest£447Average£633FlexibilityNo cancel feeOn-time77%
Search Air France flights
British AirwaysCheapest£454Average£635FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£471Average£671FlexibilityNo 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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