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Cheap flights from Seattle to Wales from £172

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 23/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CWL
11 Aug — 18 Aug1
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 12 July 2026.

Wed 30/915:40
SEA
-
MAN
2 stops25h 10m
Multiple Airlines
Tue 6/1009:25
MAN
-
SEA
2 stops16h 30m
Multiple Airlines
Deal found 9/7£425
Tue 29/919:00
SEA
-
MAN
1 stop32h 40m
Icelandair
Sat 10/1013:05
MAN
-
SEA
1 stop15h 35m
Icelandair
Deal found 8/7£462
Mon 5/1015:40
SEA
-
MAN
1 stop12h 00m
Icelandair
Thu 15/1013:05
MAN
-
SEA
1 stop12h 50m
Icelandair
Deal found 7/7£464
Wed 30/915:40
SEA
-
MAN
1 stop12h 00m
Icelandair
Mon 19/1013:05
MAN
-
SEA
1 stop12h 50m
Icelandair
Deal found 7/7£465
Mon 26/1015:35
SEA
-
MAN
1 stop12h 10m
Icelandair
Mon 2/1111:55
MAN
-
SEA
1 stop13h 05m
Icelandair
Deal found 9/7£511
Thu 20/815:40
SEA
-
MAN
2 stops17h 30m
Multiple Airlines
Wed 26/822:25
MAN
-
SEA
3 stops30h 35m
Multiple Airlines
Deal found 11/7£512
Sat 3/1015:40
SEA
-
MAN
1 stop12h 00m
Icelandair
Sun 11/1013:05
MAN
-
SEA
1 stop15h 35m
Icelandair
Deal found 7/7£525
Sat 3/1015:40
SEA
-
MAN
1 stop12h 00m
Icelandair
Sat 10/1013:05
MAN
-
SEA
1 stop15h 35m
Icelandair
Deal found 7/7£526
Sat 22/815:40
SEA
-
MAN
2 stops23h 25m
Multiple Airlines
Sat 29/810:30
MAN
-
SEA
2 stops18h 10m
Multiple Airlines
Deal found 8/7£527
Mon 26/1015:35
SEA
-
MAN
1 stop12h 10m
Icelandair
Sun 1/1111:55
MAN
-
SEA
1 stop13h 05m
Icelandair
Deal found 9/7£533
Fri 21/805:50
SEA
-
BRS
2 stops26h 00m
Multiple Airlines
Fri 28/820:20
BRS
-
SEA
2 stops26h 02m
Multiple Airlines
Deal found 7/7£601
Thu 26/1114:35
SEA
-
BRS
2 stops18h 00m
Multiple Airlines
Mon 30/1112:25
BRS
-
SEA
1 stop13h 55m
Multiple Airlines
Deal found 9/7£620

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 12 July 2026.

Round-trip from

£425

One-way from

£172
30/9-6/10
  • 30/9-6/10
  • 4 total stops
  • 41h 40m total
  • Seattle to Wales
Search Deals
23/7
  • 23/7
  • 2 total stops
  • 38h 00m 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 12 July 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 18/10

15:00-06:30

2 stops55h 30m

Manchester

Thu 22/10

06:05-21:04

2 stops22h 59m

£605
Fastest return journey

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sun 18/10

15:40-11:40

1 stop12h 00m

Manchester

Thu 22/10

13:05-20:40

1 stop15h 35m

£618

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 29/9

15:55-20:30

2 stops20h 35m

Manchester

Sat 10/10

10:40-13:45

2 stops35h 05m

£694

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Mon 26/10

15:15-07:15

2 stops57h 00m

Manchester

Sun 1/11

06:25-22:57

2 stops23h 32m

£715

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sat 22/8

15:40-11:40

1 stop12h 00m

Manchester

Wed 26/8

13:05-20:40

1 stop15h 35m

£726

SeattleBristol

SEA - BRS

SEABRS

Seattle/Tacoma Intl

Sun 23/8

15:40-17:15

2 stops17h 35m

Bristol

Sun 30/8

17:35-17:55

3 stops32h 20m

£731

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 25/8

08:00-06:30

1 stop14h 30m

Manchester

Wed 2/9

09:00-19:07

2 stops18h 07m

£739

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sat 8/8

21:45-07:15

1 stop25h 30m

Manchester

Wed 19/8

05:55-16:54

2 stops18h 59m

£740

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sun 23/8

23:04-09:50

2 stops26h 46m

Manchester

Sun 30/8

09:00-21:15

2 stops44h 15m

£762

SeattleBristol

SEA - BRS

SEABRS

Seattle/Tacoma Intl

Fri 21/8

19:00-18:05

2 stops15h 05m

Bristol

Fri 28/8

09:20-09:40

2 stops32h 20m

£762

Flights are sorted by cheapest return flights first.

Deals found on 10/7

Showing 1-10 of 38 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 12h. The distance from Seattle to Wales is about 4633 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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