Cheap flights from Brighton to Seattle from £400

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 27/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEA
4 Jan — 11 Jan1
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 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 5 December 2025.

Tue 9/1212:15LHR - SEA
1 stop12h 45mIcelandair
Thu 25/1214:35SEA - LHR
1 stop12h 15mIcelandair
Deal found 3/12£471
Thu 11/1211:05LHR - SEA
1 stop17h 30mDelta
Tue 23/1216:48SEA - LHR
Nonstop9h 42mDelta
Deal found 3/12£473
Wed 24/1210:25LHR - SEA
1 stop16h 21mMultiple Airlines
Mon 5/120:00SEA - LHR
2 stops27h 10mMultiple Airlines
Deal found 3/12£483
Wed 24/1216:20LHR - SEA
1 stop36h 37mAustrian Airlines
Wed 7/108:10SEA - LHR
1 stop14h 30mAustrian Airlines
Deal found 4/12£493
Mon 8/1214:55LHR - SEA
Nonstop10h 00mBritish Airways
Thu 29/118:50SEA - LHR
Nonstop9h 30mBritish Airways
Deal found 3/12£510
Tue 9/1212:15LHR - SEA
1 stop12h 45mIcelandair
Wed 24/1214:35SEA - LHR
1 stop12h 15mIcelandair
Deal found 3/12£512
Thu 11/1213:00LHR - SEA
1 stop17h 25mDelta
Mon 22/1216:48SEA - LHR
Nonstop9h 42mDelta
Deal found 3/12£515
Tue 23/1220:35LHR - SEA
1 stop28h 25mIcelandair
Tue 6/114:35SEA - LHR
1 stop20h 55mIcelandair
Deal found 4/12£524
Fri 5/1214:55LHR - SEA
Nonstop10h 00mBritish Airways
Thu 29/118:50SEA - LHR
Nonstop9h 30mBritish Airways
Deal found 3/12£532
Thu 4/1212:35LHR - SEA
1 stop18h 50mIberia
Sat 31/110:50SEA - LHR
1 stop36h 00mIberia
Deal found 4/12£537
Wed 10/1210:45LHR - SEA
1 stop14h 09mDelta
Fri 26/1216:48SEA - LHR
Nonstop9h 42mDelta
Deal found 3/12£540
Wed 24/1206:05STN - SEA
2 stops18h 55mMultiple Airlines
Tue 6/114:35SEA - STN
2 stops22h 45mMultiple Airlines
Deal found 2/12£546

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 5 December 2025.

Round-trip from

£470

One-way from

£400

Popular in

July

Cheapest in

January

Average price

£640
Condor
  • Condor
  • 24/4-28/4
  • 2 total stops
  • 26h 15m total
  • Brighton to Seattle
United Airlines
  • United Airlines
  • 27/2
  • 2 total stops
  • 20h 13m total
  • Brighton to Seattle
Highest demand for flights based on searches. 12% potential increase in price (£57 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Average for round-trip flights in December 2025

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 5 December 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

Fri 6/2

07:30-18:26

2 stops18h 56m

Seattle/Tacoma Intl

Sat 14/2

07:00-09:10

2 stops18h 10m

£473

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 15/4

10:50-16:59

1 stop14h 09m

Seattle/Tacoma Intl

Mon 20/4

06:50-05:55

1 stop15h 05m

£480

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 6/4

06:30-12:20

1 stop13h 50m

Seattle/Tacoma Intl

Wed 15/4

07:00-08:20

1 stop17h 20m

£481

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 9/4

06:30-12:20

1 stop13h 50m

Seattle/Tacoma Intl

Mon 13/4

23:05-20:40

1 stop13h 35m

£481

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 9/4

06:30-12:20

1 stop13h 50m

Seattle/Tacoma Intl

Sat 18/4

15:44-12:20

1 stop12h 36m

£481

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 22/1

14:50-10:22

2 stops27h 32m

Seattle/Tacoma Intl

Wed 4/2

15:10-12:50

1 stop13h 40m

£484

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Fri 27/2

12:10-18:20

1 stop14h 10m

Seattle/Tacoma Intl

Sun 8/3

21:05-15:35

1 stop11h 30m

£485

LondonSeattle

LCY - SEA

LCYSEA

London City

Thu 15/1

09:15-22:43

2 stops21h 28m

Seattle/Tacoma Intl

Wed 28/1

10:58-12:55

2 stops41h 57m

£487

LondonSeattle

LCY - SEA

LCYSEA

London City

Fri 16/1

09:20-21:12

2 stops19h 52m

Seattle/Tacoma Intl

Thu 29/1

12:35-17:05

2 stops20h 30m

£487

LondonSeattle

LCY - SEA

LCYSEA

London City

Wed 4/2

09:20-21:12

2 stops19h 52m

Seattle/Tacoma Intl

Wed 18/2

10:55-12:55

2 stops18h 00m

£487

Flights are sorted by cheapest return flights first.

Deals found on 4/12

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 28 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 £306). Flying from Brighton to Seattle in August is currently the most expensive (average of £462). 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 5 December 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 5 December 2025.

The most flights from BH9 to SEA are scheduled on a Monday (15 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (10 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 5 December 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.

Food

7.2

Overall

7.7

Crew

8.4

Entertainment

7.1

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Food

7.2

Overall

7.7

Crew

8.4

Entertainment

7.1

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Food

7.2

Overall

7.7

Crew

8.4

Entertainment

7.1

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Food

7.2

Overall

7.7

Crew

8.4

Entertainment

7.1

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Food

7.2

Overall

7.7

Crew

8.4

Entertainment

7.1

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Food

7.2

Overall

7.7

Crew

8.4

Entertainment

7.1

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

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 12 inbound flights from Brighton per day.

  • How long is the flight from Brighton to Seattle?

    For as low as £473, United Airlines can have you in Seattle from Brighton in 18h 56m. 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 WestJet, which is currently one of the cheapest options available, starting at £253. Icelandair flights start at £356 while deals on British Airways start at £373 one-way.

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

  • 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 (95%), Air France (88%) 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 £373. While the most popular route (London Heathrow - Seattle/Tacoma Intl) can be booked for £375 on average, our data indicates £1,678 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 £306). Flying from Brighton to Seattle in August is currently the most expensive (average of £462). 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
SeaTac

Browse thousands of different options on Cheapflights for your next trip

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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 5 December 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£327Average£474FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air FranceCheapest£387Average£606FlexibilityNo cancel feeOn-time77%
Search Air France flights
FinnairCheapest£399Average£577FlexibilityNo cancel feeOn-time76%
Search Finnair flights
LufthansaCheapest£402Average£490FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
KLMCheapest£403Average£572FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£408Average£637FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapest£442Average£601FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£444Average£591FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
DeltaCheapest£447Average£582FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Aer LingusCheapest£459Average£673FlexibilityNo 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.

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