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Cheap flights from Seattle to Wales from £160

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 22/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CWL
7 Jul — 14 Jul1
1 adult

Cheap flight deals from Seattle to Wales

Keep the following information in mind while searching for Seattle to Wales flight deals. Data was last updated 2 July 2025.

Round-trip from

£359

One-way from

£160

Popular in

June

Cheapest in

January

Average price

£1,200
7/9-21/9
  • 7/9-21/9
  • 4 total stops
  • 37h 55m total
  • Seattle to Wales
Icelandair
  • Icelandair
  • 22/9
  • 1 total stop
  • 11h 55m total
  • Seattle to Wales
Highest demand for flights based on searches. 21% potential increase in price (£168 potential increase over avg. return price).
Cheapest flight prices on average. 5% potential price decrease (£30 potential savings vs. average return price).
Average for round-trip flights in July 2025

Find flight deals from Seattle to Wales

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 2 July 2025.

Sun 7/915:45SEA - MAN
2 stops20h 40mMultiple Airlines
Sun 21/908:35MAN - SEA
2 stops17h 15mMultiple Airlines
Deal found 30/6£359
Tue 7/1015:45SEA - MAN
1 stop11h 55mIcelandair
Wed 5/1111:55MAN - SEA
1 stop13h 05mIcelandair
Deal found 30/6£367
Mon 25/819:35SEA - CWL
1 stop12h 20mMultiple Airlines
Mon 1/913:10CWL - SEA
1 stop12h 40mMultiple Airlines
Deal found 1/7£421
Wed 20/816:00SEA - MAN
2 stops19h 45mScandinavian Airlines
Mon 25/820:25MAN - SEA
2 stops49h 25mScandinavian Airlines
Deal found 1/7£435
Thu 14/819:35SEA - BRS
1 stop18h 00mMultiple Airlines
Thu 21/808:55BRS - SEA
1 stop16h 55mMultiple Airlines
Deal found 30/6£440
Tue 7/1014:52SEA - MAN
2 stops16h 23mBritish Airways
Wed 5/1109:50MAN - SEA
1 stop15h 05mBritish Airways
Deal found 30/6£450
Mon 22/915:00SEA - MAN
2 stops16h 10mAmerican Airlines
Mon 10/1116:20MAN - SEA
1 stop27h 00mAmerican Airlines
Deal found 30/6£459
Sun 3/813:30SEA - MAN
1 stop15h 55mDelta
Tue 26/814:15MAN - SEA
1 stop17h 00mDelta
Deal found 29/6£469
Tue 7/1008:30SEA - MAN
3 stops24h 50mUnited Airlines
Wed 5/1106:25MAN - SEA
1 stop14h 55mUnited Airlines
Deal found 2/7£479
Thu 14/819:35SEA - BRS
1 stop12h 25mAer Lingus
Thu 21/808:25BRS - SEA
1 stop17h 25mAer Lingus
Deal found 30/6£487
Thu 7/819:35SEA - MAN
1 stop16h 50mAer Lingus
Thu 14/808:10MAN - SEA
1 stop17h 40mAer Lingus
Deal found 1/7£513
Sat 2/820:20SEA - MAN
1 stop17h 10mIberia
Tue 26/819:15MAN - SEA
2 stops36h 26mIberia
Deal found 29/6£515

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 2 July 2025.
Use the filters below to find and compare flights from Seattle to Wales that are best for you.

Fly from

Seattle

Fly to

Wales

Route

Depart

Return

Price

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sun 7/9

15:45-20:25

2 stops20h 40m

Manchester

Sun 21/9

08:35-17:50

2 stops17h 15m

£359

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 7/10

15:45-11:40

1 stop11h 55m

Manchester

Wed 5/11

11:55-17:00

1 stop13h 05m

£367

SeattleCardiff

SEA - CWL

SEACWL

Seattle/Tacoma Intl

Mon 25/8

19:35-15:55

1 stop12h 20m

Cardiff Wales

Mon 1/9

13:10-17:50

1 stop12h 40m

£421

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Wed 20/8

16:00-19:45

2 stops19h 45m

Manchester

Mon 25/8

20:25-13:50

2 stops49h 25m

£435

SeattleBristol

SEA - BRS

SEABRS

Seattle/Tacoma Intl

Thu 14/8

19:35-21:35

1 stop18h 00m

Bristol

Thu 21/8

08:55-17:50

1 stop16h 55m

£440

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 7/10

14:52-15:15

2 stops16h 23m

Manchester

Wed 5/11

09:50-16:55

1 stop15h 05m

£450

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Mon 22/9

15:00-15:10

2 stops16h 10m

Manchester

Mon 10/11

16:20-11:20

1 stop27h 00m

£459

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sun 3/8

13:30-13:25

1 stop15h 55m

Manchester

Tue 26/8

14:15-23:15

1 stop17h 00m

£469

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 7/10

08:30-17:20

3 stops24h 50m

Manchester

Wed 5/11

06:25-13:20

1 stop14h 55m

£479

SeattleBristol

SEA - BRS

SEABRS

Seattle/Tacoma Intl

Thu 14/8

19:35-16:00

1 stop12h 25m

Bristol

Thu 21/8

08:25-17:50

1 stop17h 25m

£487

Flights are sorted by cheapest return flights first.

Deals found on 1/7

Showing 1-10 of 28 results
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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.

Reviews of airlines servicing Wales

Get insights into the airlines that provide service to Wales. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Wales. Reviews last updated 2 July 2025.
Get a feel of what it's like to fly with Delta, KLM, andUnited Airlines from Seattle to Wales by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very Good

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • What are the cheapest airlines to fly from Seattle to Wales one-way?

    One-way options have recently been found by users for as low as £160 on Icelandair. Other airlines that offer cheap prices include Delta from £295 and United Airlines from £306 one-way.

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

  • 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.

  • What is the cheapest month to book a flight from Seattle to Wales?

    Currently, July is the cheapest month in which you can book a flight from Seattle to Wales (average of £169). Flying from Seattle to Wales in December is currently the most expensive (average of £263). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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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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