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Cheap flights from Seattle to Wales from £171

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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CWL
15 Apr — 22 Apr1
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 16 March 2026.

Mon 20/415:40
SEA
-
MAN
1 stop12h 55m
Multiple Airlines
Tue 28/406:25
MAN
-
SEA
1 stop22h 15m
Multiple Airlines
Deal found 13/3£462
Tue 14/415:40
SEA
-
MAN
1 stop12h 00m
Multiple Airlines
Mon 25/518:00
MAN
-
SEA
2 stops30h 00m
Multiple Airlines
Deal found 16/3£469
Mon 20/415:40
SEA
-
MAN
1 stop12h 00m
Icelandair
Tue 28/413:05
MAN
-
SEA
1 stop12h 50m
Icelandair
Deal found 12/3£470
Tue 14/415:40
SEA
-
MAN
1 stop12h 00m
Multiple Airlines
Thu 28/519:25
MAN
-
SEA
2 stops28h 35m
Multiple Airlines
Deal found 16/3£479
Tue 14/415:40
SEA
-
MAN
1 stop12h 00m
Multiple Airlines
Sat 23/518:30
MAN
-
SEA
2 stops29h 30m
Multiple Airlines
Deal found 16/3£502
Tue 14/415:40
SEA
-
MAN
1 stop12h 00m
Icelandair
Wed 27/513:05
MAN
-
SEA
1 stop30h 40m
Icelandair
Deal found 16/3£534
Mon 13/419:00
SEA
-
MAN
1 stop32h 40m
Icelandair
Wed 27/513:05
MAN
-
SEA
1 stop30h 40m
Icelandair
Deal found 16/3£536
Sun 23/819:20
SEA
-
MAN
2 stops51h 10m
Air Canada
Thu 27/806:05
MAN
-
SEA
2 stops23h 02m
Air Canada
Deal found 12/3£538
Sat 8/818:55
SEA
-
BRS
1 stop13h 05m
Aer Lingus
Fri 21/812:25
BRS
-
SEA
1 stop12h 45m
Aer Lingus
Deal found 12/3£647
Sun 13/919:10
SEA
-
BRS
1 stop12h 50m
Multiple Airlines
Sun 27/918:55
BRS
-
SEA
2 stops29h 05m
Multiple Airlines
Deal found 15/3£686
Wed 1/414:10
SEA
-
CWL
2 stops24h 15m
Multiple Airlines
Wed 8/423:30
CWL
-
SEA
2 stops30h 23m
Multiple Airlines
Deal found 12/3£698
Wed 10/619:10
SEA
-
BRS
1 stop12h 50m
Multiple Airlines
Thu 18/619:40
BRS
-
SEA
2 stops31h 05m
Multiple Airlines
Deal found 12/3£723

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 16 March 2026.

Round-trip from

£462

One-way from

£171
20/4-28/4
  • 20/4-28/4
  • 2 total stops
  • 35h 10m total
  • Seattle to Wales
Search Deals
6/5
  • 6/5
  • 2 total stops
  • 20h 45m 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 16 March 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 23/8

15:55-08:55

1 stop33h 00m

Manchester

Thu 27/8

12:45-13:45

2 stops33h 00m

£580

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Wed 26/8

08:10-10:25

2 stops18h 15m

Manchester

Wed 2/9

10:35-16:59

1 stop14h 24m

£590

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Mon 20/4

12:08-10:25

3 stops38h 17m

Manchester

Tue 28/4

06:05-19:00

2 stops20h 55m

£597

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 28/4

08:00-10:25

2 stops18h 25m

Manchester

Tue 5/5

05:55-12:20

1 stop14h 25m

£599

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 14/4

14:10-17:35

1 stop19h 25m

Manchester

Mon 25/5

17:55-16:59

1 stop31h 04m

£626

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Mon 10/8

09:50-10:20

2 stops16h 30m

Manchester

Mon 31/8

05:55-11:37

1 stop13h 42m

£628

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Mon 10/8

23:20-17:35

2 stops34h 15m

Manchester

Mon 31/8

11:10-18:59

2 stops39h 49m

£630

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Thu 30/4

22:41-09:50

2 stops27h 09m

Manchester

Thu 7/5

06:05-22:47

2 stops24h 42m

£636
Fastest return journey

SeattleBristol

SEA - BRS

SEABRS

Seattle/Tacoma Intl

Sat 8/8

18:55-16:00

1 stop13h 05m

Bristol

Fri 21/8

12:25-17:10

1 stop12h 45m

£647

SeattleCardiff

SEA - CWL

SEACWL

Seattle/Tacoma Intl

Tue 28/4

17:35-09:15

1 stop31h 40m

Cardiff Wales

Tue 5/5

09:45-11:42

1 stop33h 57m

£759

Flights are sorted by cheapest return flights first.

Deals found on 14/3

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 13h 05m. 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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