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Cheap flights from Seattle to Wales from £184

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 21/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CWL
15 May — 22 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Wales

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Wales
Explore the most affordable flight options available from Seattle to Wales. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 April 2026.

Fri 24/419:00
SEA
-
MAN
1 stop32h 40m
Multiple Airlines
Fri 8/519:50
MAN
-
SEA
2 stops46h 46m
Multiple Airlines
Deal found 11/4£543
Tue 29/915:55
SEA
-
MAN
2 stops20h 35m
Scandinavian Airlines
Sat 10/1009:10
MAN
-
SEA
2 stops36h 35m
Scandinavian Airlines
Deal found 11/4£554
Sun 27/915:55
SEA
-
MAN
1 stop33h 00m
Scandinavian Airlines
Thu 1/1021:10
MAN
-
SEA
2 stops24h 35m
Scandinavian Airlines
Deal found 12/4£581
Sat 24/1023:50
SEA
-
MAN
2 stops32h 00m
United Airlines
Tue 27/1011:50
MAN
-
SEA
2 stops38h 09m
United Airlines
Deal found 11/4£593
Wed 27/510:30
SEA
-
CWL
2 stops15h 45m
Multiple Airlines
Wed 3/623:30
CWL
-
SEA
1 stop25h 40m
Multiple Airlines
Deal found 11/4£750
Sun 2/819:10
SEA
-
CWL
1 stop18h 35m
Multiple Airlines
Mon 17/822:10
CWL
-
SEA
2 stops28h 35m
Multiple Airlines
Deal found 12/4£755
Sun 2/819:10
SEA
-
CWL
1 stop18h 35m
Multiple Airlines
Tue 18/811:35
CWL
-
SEA
2 stops39h 10m
Multiple Airlines
Deal found 11/4£756
Sun 2/819:10
SEA
-
CWL
1 stop18h 35m
Multiple Airlines
Thu 20/811:35
CWL
-
SEA
2 stops39h 10m
Multiple Airlines
Deal found 12/4£759
Sun 13/919:10
SEA
-
BRS
1 stop12h 50m
Multiple Airlines
Sun 27/918:55
BRS
-
SEA
2 stops29h 05m
Multiple Airlines
Deal found 10/4£762
Mon 3/819:10
SEA
-
CWL
1 stop19h 40m
Multiple Airlines
Thu 20/822:50
CWL
-
SEA
2 stops27h 55m
Multiple Airlines
Deal found 12/4£765
Mon 3/819:10
SEA
-
CWL
1 stop19h 40m
Multiple Airlines
Tue 18/811:35
CWL
-
SEA
2 stops30h 05m
Multiple Airlines
Deal found 12/4£765
Mon 3/819:10
SEA
-
CWL
1 stop19h 40m
Multiple Airlines
Mon 17/811:35
CWL
-
SEA
2 stops30h 05m
Multiple Airlines
Deal found 12/4£768

Find flight deals from Seattle to Wales

Keep the following information in mind while searching for Seattle to Wales flight deals. Data was last updated 15 April 2026.

Round-trip from

£554

One-way from

£184
Scandinavian Airlines
  • Scandinavian Airlines
  • 29/9-10/10
  • 4 total stops
  • 57h 10m total
  • Seattle to Wales
Search Deals
21/4
  • 21/4
  • 2 total stops
  • 16h 25m total
  • Seattle to Wales
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Seattle to Wales 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 15 April 2026.
Use the filters below to find and compare flights from Seattle to Wales that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sun 27/9

15:55-08:55

1 stop33h 00m

Manchester

Thu 1/10

21:10-13:45

2 stops24h 35m

£581
Fastest return journey

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sun 27/9

15:40-11:40

1 stop12h 00m

Manchester

Thu 1/10

13:05-17:55

1 stop12h 50m

£641

SeattleCardiff

SEA - CWL

SEACWL

Seattle/Tacoma Intl

Thu 14/5

19:10-22:20

1 stop19h 10m

Cardiff Wales

Tue 19/5

23:15-18:45

2 stops27h 30m

£792

SeattleBristol

SEA - BRS

SEABRS

Seattle/Tacoma Intl

Sun 13/9

09:50-13:15

2 stops19h 25m

Bristol

Sun 27/9

06:15-11:47

1 stop13h 32m

£814

SeattleCardiff

SEA - CWL

SEACWL

Seattle/Tacoma Intl

Mon 11/5

17:40-09:15

1 stop31h 35m

Cardiff Wales

Tue 19/5

17:15-11:42

1 stop26h 27m

£814

SeattleCardiff

SEA - CWL

SEACWL

Seattle/Tacoma Intl

Mon 3/8

07:15-09:15

2 stops18h 00m

Cardiff Wales

Wed 19/8

09:45-16:27

1 stop14h 42m

£814

SeattleCardiff

SEA - CWL

SEACWL

Seattle/Tacoma Intl

Tue 12/5

07:30-09:15

2 stops17h 45m

Cardiff Wales

Tue 19/5

09:45-22:40

2 stops20h 55m

£824

SeattleCardiff

SEA - CWL

SEACWL

Seattle/Tacoma Intl

Tue 4/8

10:05-16:45

2 stops22h 40m

Cardiff Wales

Mon 17/8

09:45-16:22

2 stops38h 37m

£830

SeattleCardiff

SEA - CWL

SEACWL

Seattle/Tacoma Intl

Thu 14/5

17:40-16:45

1 stop15h 05m

Cardiff Wales

Tue 19/5

09:45-16:30

1 stop14h 45m

£866

SeattleCardiff

SEA - CWL

SEACWL

Seattle/Tacoma Intl

Wed 5/8

17:45-16:45

1 stop15h 00m

Cardiff Wales

Sun 16/8

09:50-11:37

1 stop33h 47m

£870

Flights are sorted by cheapest return flights first.

Deals found on 14/4

Showing 1-10 of 35 resultsSorted by cheapest first
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Best time to book a flight from Seattle to Wales

Have a flexible travel schedule? Discover the best time to fly to Wales from Seattle 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 Seattle to Wales
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Wales. 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 from for flights from Seattle to Wales?

    For a flight from Seattle to Wales, you will be flying from Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city.

  • How long is the flight from Seattle to Wales?

    Departing from Seattle to Wales will take you 19h 25m. The distance from Seattle to Wales is about 4727 mi. This flight may include one or multiple stops.

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

    When deciding which route to take from Seattle to Wales consider Seattle/Tacoma Intl - Manchester, Seattle/Tacoma Intl - Bristol or Seattle/Tacoma Intl - Cardiff Wales as they are the most popular.

  • Can I find deals for flights from Seattle to Wales that include hotel bookings?

    Yes. In addition to deals on Seattle to Wales flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Wales?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Wales.

  • Can I find deals for business class flights from Seattle to Wales?

    Yes. Cheapflights offers flight deals from Seattle to Wales 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

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How does Cheapflights help users find flights from Seattle to Wales?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Seattle to Wales. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Wales?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Wales from Seattle.

Can Cheapflights find flights from Seattle to Wales with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Seattle to Wales, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Seattle to Wales become cheaper?

Yes! Start tracking prices for Seattle to Wales flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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