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Cheap flights from Seattle to Wales from £231

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 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CWL
5 May — 12 May1
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 30 April 2025.

Round-trip from

£405

One-way from

£231

Popular in

June

Cheapest in

April

Average price

£617
Icelandair
  • Icelandair
  • 7/10-5/11
  • 2 total stops
  • 25h 00m total
  • Seattle to Wales
Search Deals
Icelandair
  • Icelandair
  • 10/8
  • 1 total stop
  • 32h 40m total
  • Seattle to Wales
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£144 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 April 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 30 April 2025.

Tue 7/1015:45SEA - MAN
1 stop11h 55mIcelandair
Wed 5/1111:55MAN - SEA
1 stop13h 05mIcelandair
Deal found 30/4£405
Tue 7/1013:29SEA - MAN
2 stops17h 46mAmerican Airlines
Wed 5/1108:55MAN - SEA
1 stop16h 00mAmerican Airlines
Deal found 30/4£436
Sun 14/916:20SEA - MAN
2 stops18h 50mScandinavian Airlines
Tue 23/919:35MAN - SEA
2 stops26h 25mScandinavian Airlines
Deal found 30/4£497
Tue 16/922:55SEA - MAN
2 stops27h 25mUnited Airlines
Sat 27/911:50MAN - SEA
2 stops35h 52mUnited Airlines
Deal found 29/4£551
Mon 6/1001:21SEA - MAN
2 stops23h 19mAer Lingus
Wed 5/1112:25MAN - SEA
1 stop13h 50mAer Lingus
Deal found 29/4£555
Tue 16/919:15SEA - MAN
2 stops31h 05mAir Canada
Sat 27/911:50MAN - SEA
1 stop31h 19mAir Canada
Deal found 29/4£557
Sun 18/507:16SEA - MAN
1 stop16h 29mDelta
Thu 9/1008:55MAN - SEA
2 stops19h 36mDelta
Deal found 30/4£565
Tue 10/607:20SEA - MAN
1 stop16h 25mVirgin Atlantic
Tue 17/614:15MAN - SEA
1 stop16h 34mVirgin Atlantic
Deal found 30/4£567
Sun 18/507:20SEA - MAN
2 stops19h 05mMultiple Airlines
Thu 9/1006:05MAN - SEA
2 stops16h 11mMultiple Airlines
Deal found 29/4£603
Sun 15/613:55SEA - MAN
1 stop18h 50mKLM
Mon 13/1020:40MAN - SEA
1 stop23h 10mKLM
Deal found 29/4£617
Thu 1/506:58SEA - MAN
2 stops20h 37mBritish Airways
Wed 7/519:50MAN - SEA
2 stops29h 38mBritish Airways
Deal found 30/4£627
Wed 11/618:50SEA - MAN
1 stop20h 15mLufthansa
Wed 18/606:05MAN - SEA
2 stops16h 11mLufthansa
Deal found 29/4£634

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 30 April 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

£405

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 7/10

13:29-15:15

2 stops17h 46m

Manchester

Wed 5/11

08:55-16:55

1 stop16h 00m

£436

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sun 14/9

16:20-19:10

2 stops18h 50m

Manchester

Tue 23/9

19:35-14:00

2 stops26h 25m

£497

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 16/9

22:55-10:20

2 stops27h 25m

Manchester

Sat 27/9

11:50-15:42

2 stops35h 52m

£551

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Mon 6/10

01:21-08:40

2 stops23h 19m

Manchester

Wed 5/11

12:25-18:15

1 stop13h 50m

£555

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 16/9

19:15-10:20

2 stops31h 05m

Manchester

Sat 27/9

11:50-11:09

1 stop31h 19m

£557

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sun 18/5

07:16-07:45

1 stop16h 29m

Manchester

Thu 9/10

08:55-20:31

2 stops19h 36m

£565

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 10/6

07:20-07:45

1 stop16h 25m

Manchester

Tue 17/6

14:15-22:49

1 stop16h 34m

£567

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sun 18/5

07:20-10:25

2 stops19h 05m

Manchester

Thu 9/10

06:05-14:16

2 stops16h 11m

£603

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sun 15/6

13:55-16:45

1 stop18h 50m

Manchester

Mon 13/10

20:40-11:50

1 stop23h 10m

£617

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 39 results
1
2
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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 30 April 2025.
Read reviews from past customers who have flown Delta, KLM and SWISS 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
7,934 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very Good
7,934 reviews
Delta
8.0
Very Good
7,934 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very Good
7,934 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,588 reviews
Delta
8.0
Very Good
7,934 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very Good
7,934 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Virgin Atlantic
7.4
Good
642 reviews
Delta
8.0
Very Good
7,934 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 £231 on Icelandair. Other airlines that offer cheap prices include Delta from £312 and Lufthansa from £315 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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