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Cheap flights from Seattle to Wales from £154

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 24/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CWL
30 Mar — 6 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 28 February 2026.

Sun 19/415:40
SEA
-
MAN
1 stop12h 00m
Icelandair
Wed 29/413:05
MAN
-
SEA
1 stop15h 35m
Icelandair
Deal found 25/2£384
Sun 26/415:40
SEA
-
MAN
1 stop12h 00m
Multiple Airlines
Tue 5/507:30
MAN
-
SEA
2 stops34h 10m
Multiple Airlines
Deal found 24/2£390
Mon 27/415:40
SEA
-
MAN
1 stop12h 00m
Multiple Airlines
Tue 5/507:30
MAN
-
SEA
2 stops34h 10m
Multiple Airlines
Deal found 24/2£391
Sat 9/519:00
SEA
-
MAN
1 stop32h 40m
Multiple Airlines
Mon 25/518:00
MAN
-
SEA
2 stops30h 00m
Multiple Airlines
Deal found 25/2£414
Tue 21/415:40
SEA
-
MAN
1 stop12h 00m
Multiple Airlines
Tue 28/422:45
MAN
-
SEA
2 stops28h 38m
Multiple Airlines
Deal found 24/2£418
Sun 26/415:40
SEA
-
MAN
1 stop12h 00m
Icelandair
Sat 2/513:05
MAN
-
SEA
1 stop15h 35m
Icelandair
Deal found 24/2£427
Sat 25/419:00
SEA
-
MAN
1 stop32h 40m
Icelandair
Sat 2/513:05
MAN
-
SEA
1 stop15h 35m
Icelandair
Deal found 24/2£429
Sat 9/519:00
SEA
-
MAN
1 stop32h 40m
Multiple Airlines
Fri 22/506:15
MAN
-
SEA
2 stops21h 04m
Multiple Airlines
Deal found 25/2£430
Mon 9/315:35
SEA
-
MAN
1 stop12h 10m
Multiple Airlines
Wed 29/420:30
MAN
-
SEA
2 stops30h 53m
Multiple Airlines
Deal found 27/2£434
Sun 8/315:00
SEA
-
MAN
1 stop12h 45m
Multiple Airlines
Wed 29/420:30
MAN
-
SEA
2 stops30h 53m
Multiple Airlines
Deal found 27/2£435
Thu 30/415:40
SEA
-
BRS
2 stops22h 55m
Multiple Airlines
Tue 5/508:20
BRS
-
SEA
3 stops22h 00m
Multiple Airlines
Deal found 25/2£481
Tue 14/415:40
SEA
-
CWL
2 stops23h 45m
Multiple Airlines
Tue 21/423:15
CWL
-
SEA
2 stops26h 40m
Multiple Airlines
Deal found 28/2£548

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 28 February 2026.

Round-trip from

£384

One-way from

£154
Icelandair
  • Icelandair
  • 19/4-29/4
  • 2 total stops
  • 27h 35m total
  • Seattle to Wales
Search Deals
Icelandair
  • Icelandair
  • 24/3
  • 1 total stop
  • 12h 10m 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 28 February 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

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sun 19/4

13:19-17:05

2 stops19h 46m

Manchester

Wed 29/4

10:05-22:38

2 stops20h 33m

£490

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Wed 1/4

13:32-16:45

2 stops19h 13m

Manchester

Mon 6/4

11:10-16:30

1 stop13h 20m

£536

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 24/3

14:25-14:00

1 stop16h 35m

Manchester

Tue 14/4

06:55-11:35

1 stop12h 40m

£548

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sat 9/5

07:35-14:00

2 stops22h 25m

Manchester

Thu 11/6

08:55-16:24

1 stop15h 29m

£549

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 10/3

06:15-06:40

2 stops17h 25m

Manchester

Tue 17/3

13:00-22:22

1 stop16h 22m

£556

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Mon 11/5

13:45-20:05

1 stop22h 20m

Manchester

Sat 13/6

05:50-11:15

1 stop13h 25m

£562

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sat 9/5

16:00-08:15

1 stop32h 15m

Manchester

Sun 14/6

13:45-16:24

1 stop34h 39m

£568

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Mon 27/7

09:50-10:20

2 stops16h 30m

Manchester

Tue 11/8

14:55-11:15

1 stop28h 20m

£569

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Mon 10/8

19:54-17:35

2 stops37h 41m

Manchester

Mon 24/8

06:05-20:10

2 stops22h 05m

£582

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Mon 23/3

19:50-16:30

1 stop13h 40m

Manchester

Wed 15/4

19:50-11:35

1 stop23h 45m

£584

Flights are sorted by cheapest return flights first.

Deals found on 27/2

Showing 1-10 of 49 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 16h 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 - Cardiff Wales or Seattle/Tacoma Intl - Bristol 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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