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Cheap flights from Seattle to Wales from £159

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 30/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CWL
18 Jun — 25 Jun1
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 13 June 2025.

Round-trip from

£416

One-way from

£159

Popular in

June

Cheapest in

January

Average price

£1,246
Icelandair
  • Icelandair
  • 7/10-5/11
  • 2 total stops
  • 25h 00m total
  • Seattle to Wales
Search Deals
Icelandair
  • Icelandair
  • 30/7
  • 1 total stop
  • 28h 10m total
  • Seattle to Wales
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£173 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£30 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

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 13 June 2025.

Tue 7/1015:45SEA - MAN
1 stop11h 55mIcelandair
Wed 5/1111:55MAN - SEA
1 stop13h 05mIcelandair
Deal found 13/6£416
Wed 27/819:35SEA - MAN
1 stop18h 45mMultiple Airlines
Wed 10/911:30MAN - SEA
1 stop14h 20mMultiple Airlines
Deal found 11/6£452
Sun 24/816:00SEA - MAN
2 stops19h 45mScandinavian Airlines
Tue 2/919:35MAN - SEA
2 stops26h 15mScandinavian Airlines
Deal found 11/6£459
Tue 7/1013:29SEA - MAN
2 stops17h 46mAmerican Airlines
Wed 5/1106:10MAN - SEA
1 stop18h 45mAmerican Airlines
Deal found 13/6£462
Tue 2/913:30SEA - MAN
1 stop15h 40mBritish Airways
Mon 8/919:45MAN - SEA
1 stop23h 25mBritish Airways
Deal found 10/6£469
Mon 25/807:20SEA - MAN
2 stops19h 05mAir Canada
Thu 11/911:50MAN - SEA
2 stops29h 31mAir Canada
Deal found 11/6£475
Sun 24/823:54SEA - MAN
2 stops24h 31mUnited Airlines
Thu 11/911:50MAN - SEA
1 stop31h 09mUnited Airlines
Deal found 11/6£478
Sun 27/719:35SEA - MAN
1 stop11h 50mAer Lingus
Tue 12/809:25MAN - SEA
1 stop16h 25mAer Lingus
Deal found 12/6£481
Wed 27/810:00SEA - MAN
2 stops23h 55mSWISS
Wed 10/918:40MAN - SEA
2 stops31h 56mSWISS
Deal found 11/6£516
Mon 25/814:10SEA - MAN
1 stop12h 10mDelta
Sat 6/914:15MAN - SEA
1 stop17h 00mDelta
Deal found 11/6£528
Tue 9/1215:10SEA - MAN
1 stop24h 10mLufthansa
Fri 2/106:05MAN - SEA
1 stop14h 05mLufthansa
Deal found 12/6£534
Sat 26/713:30SEA - MAN
1 stop24h 50mVirgin Atlantic
Sat 2/805:55MAN - SEA
1 stop13h 20mVirgin Atlantic
Deal found 11/6£574

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 13 June 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

Tue 7/10

15:45-11:40

1 stop11h 55m

Manchester

Wed 5/11

11:55-17:00

1 stop13h 05m

£416

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Wed 27/8

19:35-22:20

1 stop18h 45m

Manchester

Wed 10/9

11:30-17:50

1 stop14h 20m

£452

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sun 24/8

16:00-19:45

2 stops19h 45m

Manchester

Tue 2/9

19:35-13:50

2 stops26h 15m

£459

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 7/10

13:29-15:15

2 stops17h 46m

Manchester

Wed 5/11

06:10-16:55

1 stop18h 45m

£462

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 2/9

13:30-13:10

1 stop15h 40m

Manchester

Mon 8/9

19:45-11:10

1 stop23h 25m

£469

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Mon 25/8

07:20-10:25

2 stops19h 05m

Manchester

Thu 11/9

11:50-09:21

2 stops29h 31m

£475

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sun 24/8

23:54-08:25

2 stops24h 31m

Manchester

Thu 11/9

11:50-10:59

1 stop31h 09m

£478

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sun 27/7

19:35-15:25

1 stop11h 50m

Manchester

Tue 12/8

09:25-17:50

1 stop16h 25m

£481

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Mon 25/8

14:10-10:20

1 stop12h 10m

Manchester

Mon 8/9

11:55-11:15

1 stop31h 20m

£514

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Wed 27/8

10:00-17:55

2 stops23h 55m

Manchester

Wed 10/9

18:40-18:36

2 stops31h 56m

£516

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 40 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

Rainfall in Wales by month

Plan your trip to Wales by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Wales ranges from 50.0 - 90.0 inches per month. January is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Wales when rainfall is around 50.0 mm.

Temperature in Wales by month

Plan your trip to Wales by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Wales, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 C).

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 13 June 2025.
Read reviews from past customers who have flown Delta, KLM and Air France from Seattle to Wales. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

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!
Delta
8.0
Very Good
7,950 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

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!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

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!
Air France
7.5
Good
1,463 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

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!
SWISS
7.5
Good
1,624 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

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!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

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 £159 on Icelandair. Other airlines that offer cheap prices include United Airlines from £307 and Air Canada from £328 one-way.

  • 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.

  • 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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See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

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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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