HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Wales

$212+ 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 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CWL
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Wales with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 January 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Ovago
2 stars

Round-trip from

$498
(oojo)

One-way from

$212
(oojo)
Provider with most accurate pricing for Seattle/Tacoma Intl-Cardiff Wales flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Cardiff Wales flights.
Search Deals
From Seattle/Tacoma Intl to Wales
Search Deals
One-way flight from Seattle/Tacoma Intl to Wales
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 January 15, 2026.

This oojo deal was found by Cheapflights users on 1/12. 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.
Sun 2/12:35 pm
SEA
-
MAN
1 stop12h 10m
Icelandair
Thu 2/511:55 am
MAN
-
SEA
1 stop13h 05m
Icelandair
Deal found 1/12$497
This oojo deal was found by Cheapflights users on 1/14. 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.
Sun 3/83:35 pm
SEA
-
MAN
1 stop12h 10m
Icelandair
Tue 3/1711:55 am
MAN
-
SEA
1 stop13h 05m
Icelandair
Deal found 1/14$498
This oojo deal was found by Cheapflights users on 1/13. 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.
Sun 3/87:15 am
SEA
-
MAN
2 stops20h 40m
British Airways
Tue 3/175:30 pm
MAN
-
SEA
2 stops32h 50m
British Airways
Deal found 1/13$532
This Mytrip deal was found by Cheapflights users on 1/13. 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.
Fri 2/272:35 pm
SEA
-
MAN
2 stops22h 20m
Multiple Airlines
Fri 3/66:45 am
MAN
-
SEA
2 stops18h 15m
Multiple Airlines
Deal found 1/13$541
This oojo deal was found by Cheapflights users on 1/12. 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.
Tue 2/105:45 pm
SEA
-
MAN
2 stops15h 50m
British Airways
Mon 2/165:10 pm
MAN
-
SEA
2 stops26h 20m
British Airways
Deal found 1/12$557
This Flightnetwork deal was found by Cheapflights users on 1/15. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/252:35 pm
SEA
-
MAN
1 stop12h 25m
Icelandair
Mon 3/911:55 am
MAN
-
SEA
1 stop13h 05m
Icelandair
Deal found 1/15$565
This Kiwi.com deal was found by Cheapflights users on 1/15. 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.
Sun 3/18:05 pm
SEA
-
BRS
1 stop14h 35m
Multiple Airlines
Sun 3/88:25 am
BRS
-
SEA
1 stop17h 55m
Multiple Airlines
Deal found 1/15$651
This Kiwi.com deal was found by Cheapflights users on 1/13. 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 5/116:55 pm
SEA
-
BRS
1 stop13h 05m
Multiple Airlines
Tue 5/1912:40 pm
BRS
-
SEA
2 stops39h 48m
Multiple Airlines
Deal found 1/13$721
This KLM deal was found by Cheapflights users on 1/14. 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.
Sun 3/13:05 pm
SEA
-
CWL
1 stop34h 45m
KLM
Sun 3/810:20 am
CWL
-
SEA
1 stop33h 15m
KLM
Deal found 1/14$760
This KLM deal was found by Cheapflights users on 1/14. 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 3/23:05 pm
SEA
-
BRS
1 stop14h 05m
KLM
Fri 3/136:00 am
BRS
-
SEA
1 stop13h 35m
KLM
Deal found 1/14$763
This KLM deal was found by Cheapflights users on 1/13. 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.
Fri 2/273:05 pm
SEA
-
CWL
1 stop17h 50m
KLM
Fri 3/65:15 pm
CWL
-
SEA
1 stop26h 20m
KLM
Deal found 1/13$763
This Delta deal was found by Cheapflights users on 1/15. 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.
Mon 3/27:10 am
SEA
-
BRS
2 stops17h 15m
Delta
Fri 3/136:00 am
BRS
-
SEA
1 stop13h 35m
Delta
Deal found 1/15$767

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 January 15, 2026.
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

Sun 3/8

7:20 am-10:55 am

2 stops20h 35m

Manchester

Tue 3/17

7:25 pm-7:20 pm

2 stops30h 55m

$545

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 2/10

2:09 pm-4:30 pm

2 stops18h 21m

Manchester

Mon 2/16

7:45 pm-4:55 pm

2 stops29h 10m

$562

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Wed 2/25

1:37 pm-4:20 pm

2 stops18h 43m

Manchester

Mon 3/9

8:05 pm-12:30 pm

1 stop23h 25m

$563

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 2/10

1:40 pm-6:40 pm

1 stop21h 00m

Manchester

Mon 2/16

5:25 pm-11:40 am

1 stop26h 15m

$611

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Thu 4/2

7:21 am-11:30 am

2 stops20h 09m

Manchester

Mon 4/13

8:15 pm-5:10 pm

2 stops28h 55m

$612

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sun 3/22

7:50 pm-6:05 pm

1 stop15h 15m

Manchester

Sun 3/29

8:55 pm-5:10 pm

1 stop28h 15m

$625

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Thu 3/19

8:10 am-8:45 am

2 stops17h 35m

Manchester

Tue 3/24

11:15 am-2:20 pm

1 stop34h 05m

$645

SeattleBristol

SEA - BRS

SEABRS

Seattle/Tacoma Intl

Sun 3/1

8:05 pm-6:40 pm

1 stop14h 35m

Bristol

Sun 3/8

8:25 am-6:20 pm

1 stop17h 55m

$651

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sat 2/14

11:59 pm-8:45 am

2 stops24h 46m

Manchester

Mon 2/23

6:00 am-11:18 am

2 stops37h 18m

$664

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sat 3/21

7:50 pm-7:20 pm

2 stops16h 30m

Manchester

Sun 3/29

8:55 pm-5:10 pm

1 stop28h 15m

$683

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/13

Showing 1-10 of 37 results
1
2
3
4

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
No data available for this route at this time. Please check back soon.

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 14h 05m. Fly via British Airways, KLM, or Delta to get the fastest option. Seattle and Wales are separated by a distance of 4727 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 - 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Wales

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Heathrow flights
Seattle to Gatwick flights
Portland to Heathrow flights
Seattle to London City flights
Seattle to Stansted flights
Portland to Gatwick flights
Portland to London City flights
Seattle to Luton flights
Seattle to Edinburgh flights
Portland to Stansted flights
Seattle to Glasgow Intl flights
Portland to Glasgow Intl flights
Portland to Edinburgh flights
Seattle to Manchester flights
Spokane to Heathrow flights
Spokane to Gatwick flights
Pasco to Heathrow flights
Seattle to Belfast City flights
Seattle to Belfast Intl flights
Portland to Luton flights
Portland to Manchester flights
Spokane to Edinburgh flights
Seattle to Newcastle upon Tyne flights
Spokane to London City flights
Portland to Inverness flights
Seattle to Birmingham flights
Spokane to Manchester flights
Portland to Bristol flights
Seattle to Aberdeen flights
Seattle to Inverness flights
Seattle to Bristol flights
Seattle to Cardiff flights
Spokane to Glasgow Intl flights
Seattle to Leeds flights
Portland to Belfast City flights
Walla Walla to Heathrow flights
Portland to Belfast Intl flights
Seattle to Southampton flights
Portland to Aberdeen flights
Seattle to Newquay flights
Portland to Leeds flights
Seattle to Liverpool flights
Bellingham to Heathrow flights
Bellingham to Gatwick flights
Seattle to Grimsby flights
Portland to Southend flights
Portland to Sumburgh/Shetland flights
Spokane to Southampton flights
Seattle to Darlington flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.