HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Wales

$330+ 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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CWL
Apr 27 — May 41
Sun 4/27
Sun 5/4
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 April 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$627
(oojo)

One-way from

$330
(oojo)

Popular in

June

Cheapest in

April

Average price

$828
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
Highest demand for flights based on searches. 18% potential increase in price ($260 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($52 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
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 April 22, 2025.

This oojo deal was found by Cheapflights users on 4/22. 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 oojo 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 4/22$627
This American Airlines deal was found by Cheapflights users on 4/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/106:50 pmSEA - MAN
1 stop15h 45mAmerican Airlines
Mon 11/244:20 pmMAN - SEA
1 stop27h 00mAmerican Airlines
Deal found 4/21$659
This Air Canada deal was found by Cheapflights users on 4/22. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/71:45 pmSEA - MAN
2 stops20h 10mMultiple Airlines
Wed 11/56:05 amMAN - SEA
2 stops20h 20mMultiple Airlines
Deal found 4/22$669
This oojo deal was found by Cheapflights users on 4/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/113:47 pmSEA - MAN
2 stops18h 08mBritish Airways
Mon 8/254:55 pmMAN - SEA
2 stops36h 20mBritish Airways
Deal found 4/21$684
This lastminute.com deal was found by Cheapflights users on 4/21. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/286:45 pmSEA - MAN
1 stop11h 05mAer Lingus
Tue 5/1312:05 pmMAN - SEA
1 stop12h 54mAer Lingus
Deal found 4/21$685
This United Airlines deal was found by Cheapflights users on 4/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/78:45 amSEA - MAN
3 stops24h 40mUnited Airlines
Wed 11/56:05 amMAN - SEA
2 stops23h 07mUnited Airlines
Deal found 4/21$703
This Kiwi.com deal was found by Cheapflights users on 4/20. 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.
Tue 6/37:35 pmSEA - BRS
1 stop12h 25mMultiple Airlines
Tue 6/107:20 amBRS - SEA
1 stop18h 30mMultiple Airlines
Deal found 4/20$714
This Virgin Atlantic deal was found by Cheapflights users on 4/20. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/66:00 amSEA - MAN
1 stop18h 35mVirgin Atlantic
Tue 5/132:15 pmMAN - SEA
1 stop16h 28mVirgin Atlantic
Deal found 4/20$733
This Lufthansa deal was found by Cheapflights users on 4/20. 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.
Tue 5/610:00 amSEA - MAN
2 stops16h 40mLufthansa
Tue 5/135:55 amMAN - SEA
2 stops20h 38mLufthansa
Deal found 4/20$756
This Scandinavian Airlines deal was found by Cheapflights users on 4/21. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1410:55 pmSEA - MAN
2 stops50h 35mScandinavian Airlines
Sat 10/1811:15 amMAN - SEA
2 stops34h 45mScandinavian Airlines
Deal found 4/21$760
This Gotogate deal was found by Cheapflights users on 4/22. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/47:20 amSEA - MAN
2 stops19h 05mAir Canada
Wed 6/116:05 amMAN - SEA
2 stops22h 32mAir Canada
Deal found 4/22$813
This KLM deal was found by Cheapflights users on 4/22. 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.
Sun 6/155:35 pmSEA - MAN
1 stop18h 30mKLM
Mon 10/138:40 pmMAN - SEA
1 stop23h 10mKLM
Deal found 4/22$828

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 April 22, 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

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

$627

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 10/7

1:29 pm-3:15 pm

2 stops17h 46m

Manchester

Wed 11/5

8:55 am-4:55 pm

1 stop16h 00m

$664

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 10/7

1:45 pm-5:55 pm

2 stops20h 10m

Manchester

Wed 11/5

6:05 am-6:25 pm

2 stops20h 20m

$669

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Mon 8/11

3:47 pm-5:55 pm

2 stops18h 08m

Manchester

Mon 8/25

4:55 pm-9:15 pm

2 stops36h 20m

$684

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 10/7

8:45 am-5:25 pm

3 stops24h 40m

Manchester

Wed 11/5

6:05 am-9:12 pm

2 stops23h 07m

$703

SeattleBristol

SEA - BRS

SEABRS

Seattle/Tacoma Intl

Tue 6/3

7:35 pm-4:00 pm

1 stop12h 25m

Bristol

Tue 6/10

7:20 am-5:50 pm

1 stop18h 30m

$714

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 5/6

6:00 am-8:35 am

1 stop18h 35m

Manchester

Tue 5/13

2:15 pm-10:43 pm

1 stop16h 28m

$733

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 5/6

10:00 am-10:40 am

2 stops16h 40m

Manchester

Tue 5/13

5:55 am-6:33 pm

2 stops20h 38m

$756

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Tue 10/14

10:55 pm-9:30 am

2 stops50h 35m

Manchester

Sat 10/18

11:15 am-2:00 pm

2 stops34h 45m

$760

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Thu 5/15

7:35 pm-8:25 pm

1 stop16h 50m

Manchester

Tue 5/20

8:10 am-5:50 pm

1 stop17h 40m

$796

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 38 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

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 April 22, 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.

Rainfall in Wales by month

Plan your trip to Wales by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Wales ranges from 2.0 - 3.5 inches per month. January is typically the wettest month, when rainfall can reach 3.5 in. April is typically the driest time to visit Wales when rainfall is around 2.0 in.

Temperature in Wales by month

Plan your trip to Wales by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Wales, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 64.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 39.2 F).

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 April 22, 2025.
Read through reviews of airlines operating flights from Seattle to Wales, such as Delta, KLM and SWISS. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,920 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,331 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,582 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,683 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Virgin Atlantic
7.4
Good
642 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 $330. Users have also found prices from $469 and $471 on Delta and Air Canada, 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

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
Portland to Gatwick flights
Portland to London City flights
Seattle to Stansted flights
Seattle to Edinburgh flights
Seattle to Luton flights
Seattle to Glasgow Intl flights
Seattle to Manchester flights
Portland to Edinburgh flights
Seattle to Belfast Intl flights
Portland to Glasgow Intl flights
Spokane to Heathrow flights
Seattle to Belfast City flights
Portland to Manchester flights
Portland to Stansted flights
Spokane to Edinburgh flights
Seattle to Aberdeen flights
Seattle to Southampton flights
Spokane to Gatwick flights
Seattle to Inverness flights
Seattle to Newcastle upon Tyne flights
Portland to Luton flights
Seattle to Liverpool flights
Seattle to Bristol flights
Seattle to Leeds flights
Pasco to Heathrow flights
Portland to Inverness flights
Seattle to Birmingham flights
Spokane to London City flights
Portland to Belfast City flights
Spokane to Glasgow Intl flights
Portland to Aberdeen flights
Seattle to Cardiff flights
Spokane to Manchester flights
Seattle to Newquay flights
Bellingham to Heathrow flights
Seattle to Grimsby flights
Portland to Leeds flights
Seattle to Darlington flights
Walla Walla to Heathrow flights
Seattle to Southend flights
Portland to Bristol flights
Spokane to Southampton flights
Portland to Southend flights
Portland to Sumburgh/Shetland flights
Bellingham to Gatwick flights

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 April 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$760Average$1,202FlexibilityNo cancel feeOn-time75%

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.