Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Brighton to Seattle from £416

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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEA
14 dic — 21 dic1
1 adult
1 adult, Economy, 0 bags

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

Find 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 14 novembre 2025.

mer 19/1111:55LGW - SEA
1 stop13h 05mIcelandair
mer 31/1214:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 13/11£474
mer 24/1211:55LGW - SEA
1 stop13h 05mIcelandair
mar 6/114:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 13/11£476
sab 6/1211:55LGW - SEA
1 stop13h 05mIcelandair
mar 6/114:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 12/11£477
gio 4/1220:35LHR - SEA
1 stop28h 25mIcelandair
mar 6/114:35SEA - LHR
1 stop20h 55mIcelandair
Deal found 12/11£480
sab 6/1212:15LHR - SEA
1 stop12h 45mIcelandair
mar 6/114:35SEA - LHR
1 stop20h 55mIcelandair
Deal found 12/11£480
mar 16/1220:35LHR - SEA
1 stop28h 25mIcelandair
gio 15/114:35SEA - LHR
1 stop12h 15mIcelandair
Deal found 13/11£482
mar 16/1220:35LHR - SEA
1 stop28h 25mIcelandair
lun 5/114:35SEA - LHR
1 stop12h 15mIcelandair
Deal found 13/11£486
mar 2/1220:35LHR - SEA
1 stop28h 25mIcelandair
sab 6/1214:35SEA - LHR
1 stop20h 55mIcelandair
Deal found 13/11£489
lun 8/1208:30STN - SEA
1 stop17h 50mMultiple Airlines
dom 14/1220:05SEA - STN
1 stop12h 30mMultiple Airlines
Deal found 12/11£490
dom 23/1120:35LHR - SEA
1 stop28h 25mIcelandair
dom 30/1114:35SEA - LHR
1 stop12h 15mIcelandair
Deal found 12/11£490
lun 8/1209:40LGW - SEA
1 stop16h 40mMultiple Airlines
dom 14/1220:05SEA - LGW
1 stop13h 05mMultiple Airlines
Deal found 12/11£494
mar 18/1120:35LHR - SEA
1 stop28h 25mIcelandair
mer 31/1214:35SEA - LHR
1 stop12h 15mIcelandair
Deal found 12/11£496

Cheap flight deals from Brighton to Seattle

Keep the following information in mind while searching for Brighton to Seattle flight deals. Data was last updated 14 novembre 2025.

Round-trip from

£473

One-way from

£416

Popular in

July

Cheapest in

January

Average price

£544
British Airways
  • British Airways
  • 13/3-14/4
  • Nonstop
  • 19h 20m total
  • Brighton to Seattle
Search Deals
Lufthansa
  • Lufthansa
  • 9/12
  • 2 total stops
  • 19h 36m total
  • Brighton to Seattle
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£58 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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 14 novembre 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

mar 16/12

20:35-17:00

1 stop28h 25m

Seattle/Tacoma Intl

gio 15/1

14:35-10:50

1 stop12h 15m

£482

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

mar 16/12

20:35-17:00

1 stop28h 25m

Seattle/Tacoma Intl

mer 14/1

14:35-19:30

1 stop20h 55m

£483

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

ven 13/2

14:55-16:55

Nonstop10h 00m

Seattle/Tacoma Intl

gio 19/2

13:39-11:35

1 stop13h 56m

£495

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

mer 21/1

12:20-14:53

Nonstop10h 33m

Seattle/Tacoma Intl

sab 24/1

22:59-06:25

1 stop23h 26m

£499

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

gio 27/11

12:15-17:00

1 stop12h 45m

Seattle/Tacoma Intl

lun 1/12

14:35-10:50

1 stop12h 15m

£504

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

mar 13/1

13:00-10:26

1 stop29h 26m

Seattle/Tacoma Intl

gio 29/1

23:10-10:00

1 stop26h 50m

£511

LondonSeattle

LCY - SEA

LCYSEA

London City

lun 2/2

08:40-20:46

2 stops20h 06m

Seattle/Tacoma Intl

mar 10/2

07:10-08:10

2 stops17h 00m

£518

LondonSeattle

LCY - SEA

LCYSEA

London City

gio 15/1

20:05-11:50

1 stop23h 45m

Seattle/Tacoma Intl

gio 22/1

15:10-16:35

1 stop17h 25m

£519

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

mar 5/5

13:00-17:50

1 stop12h 50m

Seattle/Tacoma Intl

sab 9/5

19:00-14:40

1 stop11h 40m

£524

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

lun 2/2

06:30-12:10

1 stop13h 40m

Seattle/Tacoma Intl

mar 10/2

10:58-11:15

1 stop16h 17m

£526

Flights are sorted by cheapest return flights first.

Deals found on 11/11

Showing 1-10 of 60 results
1
2
3
...
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

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 7 November 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 £310). Flying from Brighton to Seattle in December is currently the most expensive (average of £473). 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 14 novembre 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 19% on flights from Brighton to Seattle by exploring options for tickets in the morning.

What is the cheapest day to fly from Brighton to Seattle?

Use this chart to determine the cheapest time to fly return from Brighton to Seattle. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their Brighton to Seattle flight should consider departing on Wednesday mornings when fares are most often at their lowest. Sunday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

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 14 novembre 2025.

The most flights from BH9 to SEA are scheduled on a Thursday (15 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (6 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 14 novembre 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.
KLM
7.7
Good
1,411 reviews
Check prices

Overall

7.7

Crew

8.4

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,411 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Overall

7.7

Crew

8.4

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Virgin Atlantic
7.5
Good
673 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Overall

7.7

Crew

8.4

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Air France
7.4
Good
1,487 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Overall

7.7

Crew

8.4

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Icelandair
7.1
Good
578 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Overall

7.7

Crew

8.4

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
British Airways
6.7
Okay
7,521 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Overall

7.7

Crew

8.4

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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 £495, Icelandair can have you in Seattle from Brighton in 10h. 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 Lufthansa, which is currently one of the cheapest options available, starting at £425. British Airways flights start at £430 while deals on Icelandair start at £442 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 (97%), Air France (89%) or KLM (88%) 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 £422. While the most popular route (London Heathrow - Seattle/Tacoma Intl) can be booked for £366 on average, our data indicates £1,555 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 £310). Flying from Brighton to Seattle in December is currently the most expensive (average of £473). 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
Bothell
SeaTac

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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
Heathrow to Portland flights
Manchester to Seattle flights
Luton to Seattle flights
Stansted to Seattle flights
Gatwick to Portland flights
Manchester to Portland flights
London City to Portland flights
Birmingham to Portland flights
Stansted to Portland flights
Birmingham to Seattle flights
Edinburgh to Seattle flights
Luton to Portland flights
Heathrow to Spokane flights
Gatwick to Spokane flights
Southampton to Seattle flights
Leeds to Seattle flights
Edinburgh to Portland flights
Bristol to Seattle flights
Newcastle upon Tyne to Seattle flights
Leeds to Portland flights
London City to Spokane flights
Manchester to Spokane flights
Heathrow to Pasco flights
Newquay to Seattle flights
Grimsby to Portland flights
Edinburgh to Pasco flights
Heathrow to Bellingham flights
Bristol to Portland flights
Birmingham to Spokane flights
Southend to Seattle 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 14 novembre 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£350Average£499FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air FranceCheapest£393Average£611FlexibilityNo cancel feeOn-time77%
Search Air France flights
FinnairCheapest£406Average£576FlexibilityNo cancel feeOn-time76%
Search Finnair flights
LufthansaCheapest£407Average£504FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
KLMCheapest£411Average£581FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£414Average£653FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapest£449Average£615FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£451Average£598FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
DeltaCheapest£454Average£608FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Aer LingusCheapest£466Average£678FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.