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$220+ Cheap flights from Seattle (SEA) to Wales

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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CWL
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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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 July 3, 2025.

Round-trip from

$433
(Kiwi.com)

One-way from

$220
(Cheapflightsfares)

Popular in

June

Cheapest in

January

Average price

$1,649
From Seattle/Tacoma Intl to Wales
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One-way flight from Seattle/Tacoma Intl to Wales
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Highest demand for flights based on searches. 21% potential increase in price ($319 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($55 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 July 3, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/47:35 pmSEA - BRS
1 stop17h 00mMultiple Airlines
Wed 8/207:40 amBRS - SEA
1 stop18h 10mMultiple Airlines
Deal found 7/2$433
This FlightHub deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/73:45 pmSEA - MAN
1 stop11h 55mIcelandair
Wed 11/511:55 amMAN - SEA
1 stop13h 05mIcelandair
Deal found 7/2$504
This Kiwi.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/17:35 pmSEA - MAN
1 stop12h 00mMultiple Airlines
Tue 9/2312:40 pmMAN - SEA
1 stop13h 10mMultiple Airlines
Deal found 7/2$541
This Kiwi.com deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/257:35 pmSEA - CWL
1 stop12h 20mMultiple Airlines
Mon 9/11:10 pmCWL - SEA
1 stop12h 40mMultiple Airlines
Deal found 7/1$579
This oojo deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/204:00 pmSEA - MAN
2 stops19h 45mScandinavian Airlines
Mon 8/258:25 pmMAN - SEA
2 stops49h 25mScandinavian Airlines
Deal found 7/2$598
This CheapTickets deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/177:35 pmSEA - BRS
1 stop15h 00mAer Lingus
Sun 8/248:25 pmBRS - SEA
1 stop29h 25mAer Lingus
Deal found 7/3$613
This Justfly.com deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/72:52 pmSEA - MAN
2 stops16h 23mBritish Airways
Wed 11/512:10 pmMAN - SEA
1 stop12h 45mBritish Airways
Deal found 7/1$619
This Air Canada deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/27:15 amSEA - MAN
2 stops43h 05mAir Canada
Thu 9/1811:50 amMAN - SEA
1 stop31h 09mAir Canada
Deal found 7/2$628
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/77:20 amSEA - MAN
1 stop16h 15mDelta
Wed 11/56:00 amMAN - SEA
2 stops22h 32mDelta
Deal found 7/2$648
This United Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/78:30 amSEA - MAN
3 stops24h 50mUnited Airlines
Wed 11/56:25 amMAN - SEA
1 stop14h 55mUnited Airlines
Deal found 7/2$658
This SWISS deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/73:28 pmSEA - MAN
2 stops18h 27mSWISS
Wed 11/56:45 pmMAN - SEA
2 stops35h 44mSWISS
Deal found 7/3$659
This American Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/41:30 pmSEA - MAN
2 stops16h 20mAmerican Airlines
Wed 9/174:05 pmMAN - SEA
1 stop27h 30mAmerican Airlines
Deal found 7/1$695

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated July 3, 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

SeattleBristol

SEA - BRS

SEABRS

Seattle/Tacoma Intl

Mon 8/4

7:35 pm-8:35 pm

1 stop17h 00m

Bristol

Wed 8/20

7:40 am-5:50 pm

1 stop18h 10m

$433

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 10/7

3:45 pm-11:40 am

1 stop11h 55m

Manchester

Wed 11/5

11:55 am-5:00 pm

1 stop13h 05m

$504

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Mon 9/1

7:35 pm-3:35 pm

1 stop12h 00m

Manchester

Tue 9/23

12:40 pm-5:50 pm

1 stop13h 10m

$541

SeattleCardiff

SEA - CWL

SEACWL

Seattle/Tacoma Intl

Mon 8/25

7:35 pm-3:55 pm

1 stop12h 20m

Cardiff Wales

Mon 9/1

1:10 pm-5:50 pm

1 stop12h 40m

$579

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Wed 8/20

4:00 pm-7:45 pm

2 stops19h 45m

Manchester

Mon 8/25

8:25 pm-1:50 pm

2 stops49h 25m

$598

SeattleBristol

SEA - BRS

SEABRS

Seattle/Tacoma Intl

Sun 8/17

7:35 pm-6:35 pm

1 stop15h 00m

Bristol

Sun 8/24

8:25 pm-5:50 pm

1 stop29h 25m

$613

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 10/7

2:52 pm-3:15 pm

2 stops16h 23m

Manchester

Wed 11/5

12:10 pm-4:55 pm

1 stop12h 45m

$619

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 9/2

7:15 am-10:20 am

2 stops43h 05m

Manchester

Thu 9/18

11:50 am-10:59 am

1 stop31h 09m

$628

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 10/7

7:20 am-7:35 am

1 stop16h 15m

Manchester

Wed 11/5

6:00 am-8:32 pm

2 stops22h 32m

$648

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 10/7

8:30 am-5:20 pm

3 stops24h 50m

Manchester

Wed 11/5

6:25 am-1:20 pm

1 stop14h 55m

$658

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 29 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 round-trip 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

What is the cheapest time of day to fly from SEA to WLS?

Find hourly flight availability from Seattle to Wales. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

When flying from Seattle to Wales, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 July 3, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and SWISS from Seattle to Wales to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

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!
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

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!
KLM
7.8
Good
1,367 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

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!
SWISS
7.5
Good
1,654 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

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!
United Airlines
7.4
Good
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

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!
Virgin Atlantic
7.4
Good
654 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

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?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl (SEA) is the airport most travelers will use when flying to Wales from Seattle.

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

    For one-way options, check prices for Icelandair. According to our data, you can fly for as low as $220. Users have also found prices from $405 and $421 on Delta and United Airlines, respectively.

  • 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 vacation 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, February is the cheapest month in which you can book a flight from Seattle to Wales (average of $773). Flying from Seattle to Wales in June is currently the most expensive (average of $1,622). 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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Alternative routes for Seattle to Wales

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Seattle to Wales

Discover the top airline that operate flights from Seattle to Wales. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$760Average$1,132FlexibilityNo cancel feeOn-time75%

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