HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Wales

$307+ 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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CWL
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
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 November 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$492
(oojo)

One-way from

$307
(Ovago)
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 November 26, 2025.

This FlightHub deal was found by Cheapflights users on 11/25. 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.
Thu 12/42:35 pmSEA - MAN
1 stop12h 25mIcelandair
Tue 12/911:55 amMAN - SEA
1 stop13h 05mIcelandair
Deal found 11/25$549
This lastminute.com deal was found by Cheapflights users on 11/25. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/58:05 pmSEA - MAN
1 stop11h 15mAer Lingus
Sun 12/141:55 pmMAN - SEA
1 stop12h 25mAer Lingus
Deal found 11/25$597
This Expedia deal was found by Cheapflights users on 11/25. 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.
Fri 12/52:05 pmSEA - MAN
2 stops18h 00mAir France
Fri 12/121:25 pmMAN - SEA
1 stop18h 33mAir France
Deal found 11/25$607
This Air France deal was found by Cheapflights users on 11/25. 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.
Wed 12/32:05 pmSEA - MAN
1 stop18h 00mMultiple Airlines
Wed 12/108:40 pmMAN - SEA
1 stop23h 10mMultiple Airlines
Deal found 11/25$610
This Delta deal was found by Cheapflights users on 11/25. 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.
Wed 12/37:20 amSEA - MAN
2 stops18h 50mDelta
Tue 12/91:00 pmMAN - SEA
1 stop17h 23mDelta
Deal found 11/25$615
This Delta deal was found by Cheapflights users on 11/25. 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.
Fri 12/52:05 pmSEA - MAN
1 stop18h 00mDelta
Mon 12/155:50 amMAN - SEA
2 stops17h 09mDelta
Deal found 11/25$620
This Expedia deal was found by Cheapflights users on 11/25. 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.
Fri 12/57:20 amSEA - MAN
2 stops18h 50mKLM
Sun 12/148:45 pmMAN - SEA
2 stops26h 14mKLM
Deal found 11/25$621
This Delta deal was found by Cheapflights users on 11/25. 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.
Sat 12/611:00 pmSEA - MAN
1 stop23h 30mDelta
Tue 12/166:00 amMAN - SEA
2 stops22h 23mDelta
Deal found 11/25$626
This Delta deal was found by Cheapflights users on 11/25. 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.
Thu 12/49:25 amSEA - MAN
2 stops14h 55mDelta
Mon 12/155:50 amMAN - SEA
2 stops17h 09mDelta
Deal found 11/25$630
This Booking.com deal was found by Cheapflights users on 11/24. 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 stop12h 35mAer Lingus
Fri 12/58:05 amMAN - SEA
1 stop18h 15mAer Lingus
Deal found 11/24$633
This Expedia deal was found by Cheapflights users on 11/24. 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.
Fri 11/287:05 amSEA - BRS
2 stops16h 50mMultiple Airlines
Sun 11/307:40 pmBRS - SEA
1 stop30h 40mMultiple Airlines
Deal found 11/24$1,367
This Gurufare deal was found by Cheapflights users on 11/24. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/288:05 pmSEA - BRS
1 stop28h 05mAer Lingus
Sun 11/307:10 pmBRS - SEA
1 stop31h 10mAer Lingus
Deal found 11/24$1,385

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 26, 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

Sun 3/8

3:00 pm-10:45 am

1 stop12h 45m

Manchester

Tue 3/17

11:55 am-6:00 pm

1 stop13h 05m

$492

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Wed 2/25

2:35 pm-10:45 am

1 stop12h 10m

Manchester

Mon 3/9

11:55 am-6:00 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

$519

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Thu 2/26

4:05 pm-10:30 am

1 stop34h 25m

Manchester

Tue 3/10

1:00 pm-10:20 pm

1 stop16h 20m

$586

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Thu 2/26

6:50 pm-4:30 pm

1 stop13h 40m

Manchester

Mon 3/9

6:50 pm-12:30 pm

1 stop24h 40m

$587

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Thu 2/26

6:50 pm-7:05 pm

1 stop16h 15m

Manchester

Mon 3/9

6:20 pm-1:00 pm

2 stops25h 40m

$588

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Wed 2/25

8:05 am-8:45 am

1 stop16h 40m

Manchester

Mon 3/9

1:40 pm-4:45 pm

2 stops34h 05m

$600

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sat 12/6

7:20 am-10:10 am

2 stops18h 50m

Manchester

Mon 12/15

5:50 am-4:54 pm

2 stops19h 04m

$625

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Sat 12/6

9:30 am-10:10 am

2 stops16h 40m

Manchester

Sun 12/14

5:50 am-8:50 pm

2 stops23h 00m

$625

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Fri 1/9

1:35 pm-1:25 pm

2 stops15h 50m

Manchester

Mon 1/19

9:40 am-10:20 pm

2 stops20h 40m

$627

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/23

Showing 1-10 of 28 results
1
2
3

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 26, 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 45m. Fly via Icelandair, Delta, or British Airways 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 - 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
Seattle to Luton flights
Seattle to Edinburgh flights
Portland to London City flights
Seattle to Glasgow Intl flights
Portland to Stansted flights
Portland to Glasgow Intl flights
Spokane to Gatwick flights
Spokane to Heathrow flights
Portland to Edinburgh flights
Portland to Luton flights
Seattle to Newcastle upon Tyne flights
Seattle to Manchester flights
Portland to Manchester flights
Seattle to Belfast Intl flights
Pasco to Heathrow flights
Seattle to Birmingham flights
Seattle to Belfast City flights
Spokane to London City flights
Portland to Bristol flights
Walla Walla to Heathrow flights
Spokane to Manchester flights
Seattle to Inverness flights
Seattle to Bristol flights
Portland to Inverness flights
Seattle to Southampton flights
Seattle to Aberdeen flights
Spokane to Edinburgh flights
Portland to Aberdeen flights
Seattle to Grimsby flights
Spokane to Glasgow Intl flights
Bellingham to Heathrow flights
Seattle to Darlington flights
Portland to Belfast City flights
Portland to Belfast Intl flights
Seattle to Leeds flights
Seattle to Cardiff flights
Seattle to Newquay flights
Portland to Southend flights
Portland to Leeds flights
Seattle to Southend flights
Portland to Sumburgh/Shetland flights
Spokane to Southampton flights
Bellingham to Gatwick flights
Seattle to Liverpool 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.