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$302+ 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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CWL
Dec 19 — Dec 261
Fri 12/19
Fri 12/26
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 19, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$493
(oojo)

One-way from

$302
(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 19, 2025.

This Mytrip deal was found by Cheapflights users on 11/17. 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.
Wed 12/38:05 pmSEA - MAN
1 stop19h 10mMultiple Airlines
Wed 12/1012:25 pmMAN - SEA
1 stop13h 55mMultiple Airlines
Deal found 11/17$509
This Lufthansa deal was found by Cheapflights users on 11/17. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/33:10 pmSEA - MAN
1 stop17h 45mLufthansa
Wed 12/1011:15 amMAN - SEA
2 stops19h 13mLufthansa
Deal found 11/17$686
This Lufthansa deal was found by Cheapflights users on 11/16. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/710:05 amSEA - MAN
2 stops18h 15mLufthansa
Tue 12/235:40 pmMAN - SEA
1 stop27h 40mLufthansa
Deal found 11/16$700
This Air France deal was found by Cheapflights users on 11/16. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/72:05 pmSEA - MAN
1 stop18h 00mMultiple Airlines
Tue 12/238:40 pmMAN - SEA
1 stop23h 10mMultiple Airlines
Deal found 11/16$711
This FlightHub deal was found by Cheapflights users on 11/17. 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 12/711:22 amSEA - MAN
2 stops20h 13mBritish Airways
Tue 12/236:15 amMAN - SEA
1 stop13h 15mBritish Airways
Deal found 11/17$723
This United Airlines deal was found by Cheapflights users on 11/17. 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.
Wed 12/39:25 amSEA - MAN
2 stops18h 55mUnited Airlines
Wed 12/101:00 pmMAN - SEA
3 stops43h 50mUnited Airlines
Deal found 11/17$747
This Lufthansa deal was found by Cheapflights users on 11/16. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/52:00 pmSEA - MAN
1 stop14h 20mLufthansa
Tue 12/235:40 pmMAN - SEA
1 stop27h 40mLufthansa
Deal found 11/16$750
This Gotogate deal was found by Cheapflights users on 11/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/510:05 amSEA - MAN
2 stops18h 15mMultiple Airlines
Tue 12/2311:15 amMAN - SEA
1 stop34h 05mMultiple Airlines
Deal found 11/16$756
This Booking.com deal was found by Cheapflights users on 11/19. 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.
Tue 12/92:00 pmSEA - MAN
1 stop19h 00mLufthansa
Sun 12/146:25 amMAN - SEA
2 stops24h 03mLufthansa
Deal found 11/19$777
This KAYAK deal was found by Cheapflights users on 11/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/91:05 pmSEA - MAN
2 stops35h 15mSWISS
Sun 12/146:45 pmMAN - SEA
2 stops35h 43mSWISS
Deal found 11/19$780
This KLM deal was found by Cheapflights users on 11/18. 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.
Tue 12/162:03 pmSEA - CWL
2 stops18h 52mKLM
Tue 12/235:25 pmCWL - SEA
1 stop26h 25mKLM
Deal found 11/18$1,127
This Delta deal was found by Cheapflights users on 11/18. 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 12/1611:50 amSEA - BRS
2 stops21h 05mDelta
Tue 12/238:55 amBRS - SEA
1 stop34h 55mDelta
Deal found 11/18$1,138

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 19, 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

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

$519

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

Thu 2/5

7:00 am-11:20 pm

2 stops32h 20m

Manchester

Wed 2/11

6:25 am-1:20 pm

1 stop14h 55m

$613

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Thu 2/5

7:00 am-10:20 am

2 stops19h 20m

Manchester

Wed 2/11

6:00 am-9:12 pm

3 stops23h 12m

$647

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sun 2/15

12:12 pm-10:20 am

3 stops38h 08m

Manchester

Fri 3/6

6:10 am-10:45 pm

2 stops24h 35m

$647

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sun 1/11

2:10 pm-11:20 pm

2 stops25h 10m

Manchester

Sat 1/17

5:45 pm-10:43 pm

2 stops36h 58m

$650

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

$760

SeattleBristol

SEA - BRS

SEABRS

Seattle/Tacoma Intl

Thu 1/22

3:10 pm-9:55 am

1 stop34h 45m

Bristol

Mon 1/26

6:00 am-8:44 am

2 stops34h 44m

$765

SeattleBristol

SEA - BRS

SEABRS

Seattle/Tacoma Intl

Thu 1/22

3:10 pm-9:55 am

1 stop34h 45m

Bristol

Mon 1/26

6:00 am-11:50 am

1 stop13h 50m

$765

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Thu 12/4

10:40 am-6:35 pm

2 stops23h 55m

Manchester

Mon 12/15

10:10 am-10:19 am

2 stops32h 09m

$790

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/18

Showing 1-10 of 36 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 19, 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, Lufthansa, or Delta 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 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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Alternative routes for Seattle to Wales

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