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Cheap flights from Seattle to London from $331

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 3/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Seattle to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
7:00 pm - 11:45 am
SEA
-
LGW
32h 45m
1 stop
Icelandair Logo
3:40 pm - 8:40 pm
LGW
-
SEA
13h 00m
1 stop
$551Icelandair
Thu, Apr 30 - Tue, May 19
Icelandair Logo
3:40 pm - 11:55 am
SEA
-
LHR
12h 15m
1 stop
Icelandair Logo
1:05 pm - 5:55 pm
LHR
-
SEA
12h 50m
1 stop
$551Icelandair
Tue, May 5 - Sat, May 16
Icelandair Logo
3:40 pm - 11:55 am
SEA
-
LHR
12h 15m
1 stop
Icelandair Logo
1:05 pm - 5:55 pm
LHR
-
SEA
12h 50m
1 stop
$552Icelandair
Mon, May 4 - Mon, May 18
Lufthansa Logo
3:40 pm - 11:50 am
SEA
-
LHR
12h 10m
1 stop
Lufthansa Logo
2:30 pm - 7:16 pm
LHR
-
SEA
12h 46m
1 stop
$553Lufthansa
Mon, Feb 2 - Tue, Feb 17
Lufthansa Logo
3:40 pm - 11:50 am
SEA
-
LHR
12h 10m
1 stop
Lufthansa Logo
2:30 pm - 7:16 pm
LHR
-
SEA
12h 46m
1 stop
$554Lufthansa
Mon, Feb 2 - Tue, Feb 17
British Airways Logo
7:50 pm - 12:20 pm
SEA
-
LHR
9h 30mnonstop
British Airways Logo
12:10 pm - 7:20 pm
LHR
-
SEA
14h 10m
1 stop
$555British Airways
Sun, Mar 8 - Wed, Mar 18
British Airways Logo
9:05 pm - 3:35 pm
SEA
-
LHR
11h 30m
1 stop
British Airways Logo
12:10 pm - 7:20 pm
LHR
-
SEA
14h 10m
1 stop
$560British Airways
Wed, Mar 11 - Wed, Mar 18
Air Canada Logo
3:40 pm - 11:50 am
SEA
-
LHR
12h 10m
1 stop
Air Canada Logo
2:30 pm - 7:22 pm
LHR
-
SEA
12h 52m
1 stop
$561Air Canada
Tue, Feb 17 - Tue, Feb 24
Virgin Atlantic Logo
3:05 pm - 5:20 pm
SEA
-
LCY
18h 15m
1 stop
Virgin Atlantic Logo
5:50 pm - 11:40 am
LCY
-
SEA
25h 50m
1 stop
$651Virgin Atlantic
Tue, Feb 17 - Fri, Feb 27
Virgin Atlantic Logo
6:10 am - 9:30 am
SEA
-
LCY
19h 20m
2 stops
Virgin Atlantic Logo
8:05 pm - 11:35 am
LCY
-
SEA
23h 30m
1 stop
$655Virgin Atlantic
Wed, Feb 25 - Mon, Mar 2

British Airways flights from Seattle to Oxford

Our best British Airways deals on Seattle to Oxford flight tickets
British Airways
Mar 8
SEA7:50 pmSeattle/Tacoma Intl
9h 30m
LHR12:20 pmLondon Heathrow
Mar 18
LHR12:10 pmLondon Heathrow
14h 10m
1 stop
SEA7:20 pmSeattle/Tacoma Intl
$555
British Airways
Mar 11
SEA9:05 pmSeattle/Tacoma Intl
11h 30m
1 stop
LHR3:35 pmLondon Heathrow
Mar 18
LHR12:10 pmLondon Heathrow
14h 10m
1 stop
SEA7:20 pmSeattle/Tacoma Intl
$560
British Airways
Feb 15
SEA6:50 pmSeattle/Tacoma Intl
9h 30m
LHR12:20 pmLondon Heathrow
Feb 27
LHR7:50 amLondon Heathrow
18h 30m
1 stop
SEA6:20 pmSeattle/Tacoma Intl
$562

Air Canada flights from Seattle to Oxford

Our best Air Canada deals on Seattle to Oxford flight tickets
Air Canada
Feb 17
SEA3:40 pmSeattle/Tacoma Intl
12h 10m
1 stop
LHR11:50 amLondon Heathrow
Feb 24
LHR2:30 pmLondon Heathrow
12h 52m
1 stop
SEA7:22 pmSeattle/Tacoma Intl
$561
Air Canada
Feb 2
SEA3:40 pmSeattle/Tacoma Intl
34h 30m
2 stops
LHR10:10 amLondon Heathrow
Feb 17
LHR2:30 pmLondon Heathrow
12h 46m
1 stop
SEA7:16 pmSeattle/Tacoma Intl
$584
Air Canada
Apr 20
SEA10:10 amSeattle/Tacoma Intl
15h 50m
2 stops
LHR10:00 amLondon Heathrow
May 6
LHR8:40 amLondon Heathrow
18h 57m
2 stops
SEA7:37 pmSeattle/Tacoma Intl
$599

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Oxford 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 January 20, 2026.
Use the filters below to find and compare flights from Seattle to Oxford that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Thu 4/30

7:00 pm-11:45 am

1 stop32h 45m

London Gatwick

Tue 5/19

3:40 pm-8:40 pm

1 stop13h 00m

$551

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Tue 5/5

3:40 pm-11:55 am

1 stop12h 15m

London Heathrow

Sat 5/16

1:05 pm-5:55 pm

1 stop12h 50m

$551

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Mon 5/4

3:40 pm-11:55 am

1 stop12h 15m

London Heathrow

Mon 5/18

1:05 pm-5:55 pm

1 stop12h 50m

$552

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Mon 2/2

3:40 pm-11:50 am

1 stop12h 10m

London Heathrow

Tue 2/17

2:30 pm-7:16 pm

1 stop12h 46m

$553

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Mon 2/2

3:40 pm-11:50 am

1 stop12h 10m

London Heathrow

Tue 2/17

2:30 pm-7:16 pm

1 stop12h 46m

$554

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Sun 3/8

7:50 pm-12:20 pm

Nonstop9h 30m

London Heathrow

Wed 3/18

12:10 pm-7:20 pm

1 stop14h 10m

$555

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Wed 3/11

9:05 pm-3:35 pm

1 stop11h 30m

London Heathrow

Wed 3/18

12:10 pm-7:20 pm

1 stop14h 10m

$560

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Tue 2/17

3:40 pm-11:50 am

1 stop12h 10m

London Heathrow

Tue 2/24

2:30 pm-7:22 pm

1 stop12h 52m

$561

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 2/17

3:05 pm-5:20 pm

1 stop18h 15m

London City

Fri 2/27

5:50 pm-11:40 am

1 stop25h 50m

$651

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 2/25

6:10 am-9:30 am

2 stops19h 20m

London City

Mon 3/2

8:05 pm-11:35 am

1 stop23h 30m

$655

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 Oxford

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 cheapest month to fly to Oxford?

In general, February is the cheapest month to fly from Seattle to Oxford. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $647. The month of October is another great option to travel to Oxford, with average flight prices from Seattle averaging around $647.

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

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

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

You are more likely to see cheaper flights to Oxford from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Oxford for around $782 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Oxford from Seattle for as low as $676 on momondo.

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

There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to Oxford 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 Oxford flights?

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

Cheap Seattle to Oxford flight deals and tips

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

Fastest flight time

9h 15m

Direct flights

Every day

Airports in Oxford

6 airports
The fastest flight from Seattle to Oxford takes 9h 15m
Direct flights go from Seattle to Oxford every day.
There are 6 airports in Oxford. From Seattle there are direct flights to London Heathrow (LHR).
Search flight deals

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

    Prices for flights from Seattle/Tacoma Intl Airport to Oxford refresh daily.

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

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

    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 Oxford.

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

    The travel and health documents you'll need for your trip to Oxford may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Oxford. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from Seattle to Oxford

Compare and see reviews for airlines that fly from Seattle to Oxford with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $465Free CancellationRating
7.3
1,657 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $482Free CancellationRating
7.1
602 reviews
Search Icelandair flights
Aer LingusPriceFrom $500Free CancellationRating
7.2
1,437 reviews
Search Aer Lingus flights
American AirlinesPriceFrom $517Free CancellationRating
7.2
11,166 reviews
Search American Airlines flights
Air FrancePriceFrom $532Free CancellationRating
7.4
1,524 reviews
Search Air France flights
British AirwaysPriceFrom $538Free CancellationRating
6.7
7,690 reviews
Search British Airways flights
United AirlinesPriceFrom $547Free CancellationRating
7.4
9,184 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $553Free CancellationRating
8.0
11,763 reviews
Search Alaska Airlines flights
FinnairPriceFrom $556Free CancellationRating
7.6
1,351 reviews
Search Finnair flights
DeltaPriceFrom $558Free CancellationRating
7.9
8,080 reviews
Search Delta flights

Why use momondo?

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

It is quick and easy to find Seattle to Oxford flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Oxford that suits you.

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

Yes. momondo allows you to filter the results for Seattle to Oxford flights to just show those with flexible booking policies.

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

Once all potential Seattle to Oxford 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 Oxford right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Seattle to Oxford flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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