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Cheap flights from Seattle to London from $352

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to London departing on 1/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
2:35 pm - 10:50 amSEA-LHR
12h 15m1 stop
Icelandair Logo
12:15 pm - 6:00 pmLHR-SEA
12h 45m1 stop
$518Icelandair
Find Deal
Sun, Feb 22 - Sun, Mar 8
Multiple Airlines Logo
2:35 pm - 6:20 pmSEA-STN
19h 45m2 stops
Multiple Airlines Logo
6:30 am - 5:00 pmSTN-SEA
18h 30m2 stops
$519Multiple Airlines
Find Deal
Tue, Dec 2 - Wed, Dec 10
Icelandair Logo
2:35 pm - 7:30 pmSEA-LHR
20h 55m1 stop
Icelandair Logo
8:35 pm - 5:00 pmLHR-SEA
28h 25m1 stop
$520Icelandair
Find Deal
Sat, Jan 10 - Wed, Feb 18
Icelandair Logo
3:35 pm - 7:30 pmSEA-LHR
20h 55m1 stop
Icelandair Logo
9:25 pm - 5:50 pmLHR-SEA
28h 25m1 stop
$521Icelandair
Find Deal
Mon, Mar 16 - Sun, Mar 29
Virgin Atlantic Logo
7:20 pm - 12:50 pmSEA-LHR
9h 30mnonstop
Virgin Atlantic Logo
2:45 pm - 11:25 amLHR-SEA
28h 40m1 stop
$567Virgin Atlantic
Find Deal
Mon, Dec 1 - Wed, Dec 10
Air France Logo
4:48 pm - 10:30 amSEA-LHR
9h 42mnonstop
Air France Logo
6:20 am - 11:25 amLHR-SEA
13h 05m1 stop
$574Air France
Find Deal
Wed, Dec 3 - Tue, Jan 20
Virgin Atlantic Logo
4:48 pm - 10:30 amSEA-LHR
9h 42mnonstop
Virgin Atlantic Logo
6:20 am - 11:25 amLHR-SEA
13h 05m1 stop
$575Virgin Atlantic
Find Deal
Tue, Dec 2 - Tue, Dec 9
Delta Logo
4:48 pm - 10:30 amSEA-LHR
9h 42mnonstop
Delta Logo
6:30 am - 11:50 amLHR-SEA
13h 20m1 stop
$576Delta
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Tue, Dec 2 - Thu, Dec 11
Delta Logo
7:20 pm - 12:50 pmSEA-LHR
9h 30mnonstop
Delta Logo
6:30 am - 11:50 amLHR-SEA
13h 20m1 stop
$577Delta
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Tue, Dec 2 - Thu, Dec 11
KLM Logo
3:05 pm - 8:50 amSEA-LCY
33h 45m1 stop
KLM Logo
6:55 pm - 11:50 amLCY-SEA
24h 55m1 stop
$632KLM
Find Deal
Mon, Dec 1 - Mon, Dec 8

Icelandair flights from Seattle to Brighton

Our best Icelandair deals on Seattle to Brighton flight tickets
Icelandair
Feb 22
SEA2:35 pmSeattle/Tacoma Intl
12h 15m
1 stop
LHR10:50 amLondon Heathrow
Mar 8
LHR12:15 pmLondon Heathrow
12h 45m
1 stop
SEA6:00 pmSeattle/Tacoma Intl
$518
Find similar
Icelandair
Nov 10
SEA2:35 pmSeattle/Tacoma Intl
12h 15m
1 stop
LHR10:50 amLondon Heathrow
Nov 19
LHR12:15 pmLondon Heathrow
12h 45m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
$519
Find similar
Icelandair
Jan 10
SEA2:35 pmSeattle/Tacoma Intl
20h 55m
1 stop
LHR7:30 pmLondon Heathrow
Feb 18
LHR8:35 pmLondon Heathrow
28h 25m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
$520
Find similar

Air Canada flights from Seattle to Brighton

Our best Air Canada deals on Seattle to Brighton flight tickets
Air Canada
Dec 1
SEA5:45 amSeattle/Tacoma Intl
17h 25m
2 stops
LHR7:10 amLondon Heathrow
Dec 10
LHR2:30 pmLondon Heathrow
16h 16m
1 stop
SEA10:46 pmSeattle/Tacoma Intl
$546
Find similar
Air Canada
Dec 11
SEA5:50 amSeattle/Tacoma Intl
43h 30m
2 stops
LHR9:20 amLondon Heathrow
Sep 3
LHR6:50 amLondon Heathrow
20h 51m
2 stops
SEA7:41 pmSeattle/Tacoma Intl
$573
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Brighton 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, momondo users made 832,500 searches. Data last updated November 3, 2025.
Use the filters below to find and compare flights from Seattle to Brighton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Sun 2/22

2:35 pm-10:50 am

1 stop12h 15m

London Heathrow

Sun 3/8

12:15 pm-6:00 pm

1 stop12h 45m

$518

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Tue 12/2

2:35 pm-6:20 pm

2 stops19h 45m

London Stansted

Wed 12/10

6:30 am-5:00 pm

2 stops18h 30m

$519

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Sat 1/10

2:35 pm-7:30 pm

1 stop20h 55m

London Heathrow

Wed 2/18

8:35 pm-5:00 pm

1 stop28h 25m

$520

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Mon 3/16

3:35 pm-7:30 pm

1 stop20h 55m

London Heathrow

Sun 3/29

9:25 pm-5:50 pm

1 stop28h 25m

$521

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Mon 12/1

7:20 pm-12:50 pm

Nonstop9h 30m

London Heathrow

Wed 12/10

2:45 pm-11:25 am

1 stop28h 40m

$567

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Wed 12/3

4:48 pm-10:30 am

Nonstop9h 42m

London Heathrow

Tue 1/20

6:20 am-11:25 am

1 stop13h 05m

$574

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Tue 12/2

4:48 pm-10:30 am

Nonstop9h 42m

London Heathrow

Tue 12/9

6:20 am-11:25 am

1 stop13h 05m

$575

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Tue 12/2

4:48 pm-10:30 am

Nonstop9h 42m

London Heathrow

Thu 12/11

6:30 am-11:50 am

1 stop13h 20m

$576

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Tue 12/2

7:20 pm-12:50 pm

Nonstop9h 30m

London Heathrow

Thu 12/11

6:30 am-11:50 am

1 stop13h 20m

$577

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 12/1

3:05 pm-8:50 am

1 stop33h 45m

London City

Mon 12/8

6:55 pm-11:50 am

1 stop24h 55m

$632

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Seattle to Brighton

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Seattle and Brighton?

What is the cheapest month to fly to Brighton?

The month of October is, on average, the cheapest month to fly to Brighton from Seattle, with most prices found around $663. If you are unable to visit Brighton during the month of October, then departing from Seattle during the month January is also very affordable. Most momondo users find prices during this month for around $679.

What is the cheapest Seattle/Tacoma Intl to Brighton flight route?

Fly from Seattle/Tacoma Intl to London Heathrow for the best Seattle/Tacoma Intl - Brighton flight prices

How far in advance should I book a flight to Brighton?

You are more likely to see cheaper flights to Brighton from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Brighton for around $803 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Brighton from Seattle for as low as $705 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to Brighton flights?

There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to Brighton flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Brighton flights?

No. A direct flight is the cheapest option for a flight between Seattle to Brighton.

Cheap Seattle to Brighton flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Brighton

Fastest flight time

9h 15m

Direct flights

Every day

Airports in Brighton

1 airport
The fastest flight from Seattle to Brighton takes 9h 15m
Direct flights go from Seattle to Brighton every day.
There is 1 airport near Brighton: London Heathrow (LHR)
Search flight deals

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Brighton?

    Prices for flights from Seattle/Tacoma Intl Airport to Brighton are refreshed on a daily basis.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Brighton?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Brighton?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Brighton.

  • What documentation or ID do you need to fly to Brighton?

    The travel and health documents required for your trip to Brighton can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Brighton. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Seattle to Brighton?

Best airlines flying from Seattle to Brighton

Compare and see reviews for airlines that fly from Seattle to Brighton with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $465Free CancellationRating
7.4
1,556 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $482Free CancellationRating
7.1
568 reviews
Search Icelandair flights
Aer LingusPriceFrom $500Free CancellationRating
7.2
1,365 reviews
Search Aer Lingus flights
Air FrancePriceFrom $517Free CancellationRating
7.4
1,482 reviews
Search Air France flights
American AirlinesPriceFrom $518Free CancellationRating
7.2
11,034 reviews
Search American Airlines flights
British AirwaysPriceFrom $546Free CancellationRating
6.7
7,494 reviews
Search British Airways flights
United AirlinesPriceFrom $547Free CancellationRating
7.4
8,996 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $553Free CancellationRating
8.0
11,234 reviews
Search Alaska Airlines flights
FinnairPriceFrom $556Free CancellationRating
7.6
1,335 reviews
Search Finnair flights
DeltaPriceFrom $562Free CancellationRating
7.9
8,001 reviews
Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Brighton?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to Brighton. momondo saves you time and could save you money on your trip.

Can I find flights from Seattle to Brighton with flexible booking policies on momondo?

momondo does allow users to show only those flights to Brighton from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Brighton?

Once all potential Seattle to Brighton flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Seattle to Brighton right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Seattle to Brighton flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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