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$289+ 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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CWL
Dec 23 — Dec 301
Tue 12/23
Tue 12/30
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 November 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$451
(Mytrip)

One-way from

$289
(Kiwi.com)
Provider with most accurate pricing for Seattle/Tacoma Intl-Cardiff Wales flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Cardiff Wales flights.
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From Seattle/Tacoma Intl to Wales
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One-way flight from Seattle/Tacoma Intl to Wales
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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 November 23, 2025.

This Mytrip deal was found by Cheapflights users on 11/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/18:10 amSEA - MAN
2 stops31h 45mMultiple Airlines
Mon 12/89:45 amMAN - SEA
3 stops34h 25mMultiple Airlines
Deal found 11/21$786
This Booking.com deal was found by Cheapflights users on 11/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/18:05 pmSEA - MAN
1 stop11h 15mAer Lingus
Mon 12/812:25 pmMAN - SEA
1 stop13h 55mAer Lingus
Deal found 11/21$797
This Expedia deal was found by Cheapflights users on 11/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/13:37 pmSEA - MAN
2 stops18h 18mSWISS
Mon 12/86:45 pmMAN - SEA
2 stops34h 15mSWISS
Deal found 11/21$799
This Mytrip deal was found by Cheapflights users on 11/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/288:10 amSEA - MAN
2 stops17h 25mMultiple Airlines
Sun 1/48:55 pmMAN - SEA
2 stops33h 21mMultiple Airlines
Deal found 11/22$1,024
This FlightHub deal was found by Cheapflights users on 11/21. 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.
Fri 11/213:10 pmSEA - MAN
1 stop24h 10mMultiple Airlines
Sun 11/306:25 amMAN - SEA
2 stops40h 06mMultiple Airlines
Deal found 11/21$1,036
This Orbitz deal was found by Cheapflights users on 11/22. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1810:39 amSEA - MAN
2 stops25h 31mMultiple Airlines
Wed 1/77:45 pmMAN - SEA
2 stops46h 16mMultiple Airlines
Deal found 11/22$1,226
This FlightHub deal was found by Cheapflights users on 11/22. 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.
Sun 12/286:50 pmSEA - MAN
1 stop16h 25mBritish Airways
Sun 1/47:55 pmMAN - SEA
2 stops34h 09mBritish Airways
Deal found 11/22$1,289
This KLM deal was found by Cheapflights users on 11/22. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/223:05 pmSEA - MAN
1 stop21h 00mMultiple Airlines
Thu 1/81:30 pmMAN - SEA
1 stop17h 20mMultiple Airlines
Deal found 11/22$1,417

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 November 23, 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

Fri 2/6

2:35 pm-10:45 am

1 stop12h 10m

Manchester

Wed 2/11

11:55 am-5:00 pm

1 stop13h 05m

$493

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Thu 2/5

2:35 pm-10:45 am

1 stop12h 10m

Manchester

Wed 2/11

11:55 am-5:00 pm

1 stop13h 05m

$518

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sun 2/1

2:35 pm-10:45 am

1 stop12h 10m

Manchester

Thu 2/5

11:55 am-5:00 pm

1 stop13h 05m

$520

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sun 3/8

3:35 pm-10:45 am

1 stop12h 10m

Manchester

Tue 3/17

11:55 am-6:00 pm

1 stop13h 05m

$585

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Thu 2/5

2:10 pm-11:20 pm

2 stops25h 10m

Manchester

Wed 2/11

6:25 am-1:20 pm

1 stop14h 55m

$613

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sun 3/8

9:40 am-10:10 am

2 stops17h 30m

Manchester

Tue 3/17

5:50 am-7:25 pm

2 stops20h 35m

$633

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Mon 1/5

6:50 pm-4:30 pm

1 stop13h 40m

Manchester

Mon 1/12

8:05 pm-11:30 am

1 stop23h 25m

$635

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sun 1/11

7:00 am-12:20 pm

2 stops21h 20m

Manchester

Sat 1/17

5:45 pm-10:43 pm

2 stops36h 58m

$658

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sun 4/19

7:00 am-10:00 am

2 stops19h 00m

Manchester

Sat 4/25

6:15 pm-11:35 am

1 stop25h 20m

$681

SeattleCardiff

SEA - CWL

SEACWL

Seattle/Tacoma Intl

Thu 1/22

3:10 pm-4:45 pm

1 stop17h 35m

Cardiff Wales

Mon 1/26

10:20 am-11:50 am

1 stop33h 30m

$758

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/21

Showing 1-10 of 25 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 November 23, 2025.

It’s optimal to fly from Seattle to Wales at noon. By choosing this option you can save up to 42% on the cost of your flight, compared to a flight in the evening.

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.

  • How long is the flight from Seattle to Wales?

    There are many flights that can get you from Seattle to Wales in 12h 10m. Fly via Icelandair, Delta, or Virgin Atlantic to get the fastest option. Seattle and Wales are separated by a distance of 4633 mi. This flight may include one or multiple stops.

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

    For one-way options, check prices for Scandinavian Airlines. According to our data, you can fly for as low as $307. Users have also found prices from $356 and $491 on Icelandair and KLM, 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 - 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 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.

See more FAQs

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