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$214+ 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 7/27. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CWL
jun. 23 — jun. 301
lun. 6/23
lun. 6/30
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 junio 18, 2025.

Round-trip from

$564
(Gotogate)

One-way from

$214
(SmartFares)

Popular in

June

Cheapest in

January

Average price

$1,693
From Seattle/Tacoma Intl to Wales
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One-way flight from Seattle/Tacoma Intl to Wales
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Highest demand for flights based on searches. 21% potential increase in price ($319 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($55 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 junio 18, 2025.

This Gotogate deal was found by Cheapflights users on 6/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/233:45 pmSEA - MAN
1 stop11h 55mIcelandair
sáb. 12/1311:55 amMAN - SEA
1 stop13h 05mIcelandair
Deal found 6/15$564
This Kiwi.com deal was found by Cheapflights users on 6/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/247:35 pmSEA - MAN
1 stop18h 05mMultiple Airlines
jue. 9/410:50 amMAN - SEA
1 stop15h 00mMultiple Airlines
Deal found 6/17$592
This Gotogate deal was found by Cheapflights users on 6/16. 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.
dom. 8/107:35 pmSEA - MAN
1 stop11h 50mAer Lingus
mar. 8/2612:05 pmMAN - SEA
1 stop13h 45mAer Lingus
Deal found 6/16$605
This oojo deal was found by Cheapflights users on 6/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/244:00 pmSEA - MAN
2 stops19h 45mScandinavian Airlines
dom. 9/79:20 amMAN - SEA
2 stops36h 30mScandinavian Airlines
Deal found 6/16$622
This Air Canada deal was found by Cheapflights users on 6/16. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/312:00 pmSEA - MAN
1 stop14h 20mAir Canada
jue. 9/1111:50 amMAN - SEA
2 stops34h 26mAir Canada
Deal found 6/16$628
This American Airlines deal was found by Cheapflights users on 6/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/71:29 pmSEA - MAN
2 stops17h 46mAmerican Airlines
mié. 11/56:10 amMAN - SEA
1 stop18h 45mAmerican Airlines
Deal found 6/18$629
This British Airways deal was found by Cheapflights users on 6/16. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/28:20 pmSEA - MAN
1 stop14h 45mBritish Airways
vie. 9/127:00 amMAN - SEA
1 stop12h 35mBritish Airways
Deal found 6/16$637
This United Airlines deal was found by Cheapflights users on 6/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/1012:00 pmSEA - MAN
1 stop14h 20mUnited Airlines
mié. 10/810:40 amMAN - SEA
1 stop14h 19mUnited Airlines
Deal found 6/16$643
This Delta deal was found by Cheapflights users on 6/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/37:13 amSEA - MAN
2 stops19h 57mDelta
mar. 9/162:15 pmMAN - SEA
1 stop16h 33mDelta
Deal found 6/16$646
This SWISS deal was found by Cheapflights users on 6/16. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/14:25 pmSEA - MAN
1 stop17h 30mSWISS
mar. 9/166:40 pmMAN - SEA
2 stops31h 56mSWISS
Deal found 6/16$652
This Lufthansa deal was found by Cheapflights users on 6/17. 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.
mar. 8/261:55 pmSEA - MAN
2 stops19h 25mLufthansa
lun. 9/85:45 pmMAN - SEA
2 stops33h 04mLufthansa
Deal found 6/17$686
This World Air Fares deal was found by Cheapflights users on 6/17. 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 World Air Fares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/17:15 amSEA - MAN
1 stop16h 30mVirgin Atlantic
vie. 8/82:15 pmMAN - SEA
1 stop16h 33mVirgin Atlantic
Deal found 6/17$699

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 junio 18, 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

mar. 9/23

3:45 pm-11:40 am

1 stop11h 55m

Manchester

sáb. 12/13

11:55 am-5:00 pm

1 stop13h 05m

$564

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

dom. 8/24

7:35 pm-9:40 pm

1 stop18h 05m

Manchester

jue. 9/4

10:50 am-5:50 pm

1 stop15h 00m

$592

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

dom. 8/10

7:35 pm-3:25 pm

1 stop11h 50m

Manchester

mar. 8/26

12:05 pm-5:50 pm

1 stop13h 45m

$605

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

dom. 8/24

4:00 pm-12:25 pm

2 stops36h 25m

Manchester

dom. 9/7

9:20 am-1:50 pm

2 stops36h 30m

$622

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

mié. 9/3

12:00 pm-10:20 am

1 stop14h 20m

Manchester

jue. 9/11

11:50 am-2:16 pm

2 stops34h 26m

$628

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

mar. 10/7

1:29 pm-3:15 pm

2 stops17h 46m

Manchester

mié. 11/5

6:10 am-4:55 pm

1 stop18h 45m

$629

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

mar. 9/2

8:20 pm-7:05 pm

1 stop14h 45m

Manchester

vie. 9/12

7:00 am-11:35 am

1 stop12h 35m

$637

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

mié. 9/10

12:00 pm-10:20 am

1 stop14h 20m

Manchester

vie. 10/10

10:40 am-4:59 pm

1 stop14h 19m

$643

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

mié. 9/3

7:13 am-11:10 am

2 stops19h 57m

Manchester

mar. 9/16

2:15 pm-10:48 pm

1 stop16h 33m

$646

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

lun. 9/1

4:25 pm-5:55 pm

1 stop17h 30m

Manchester

mié. 9/17

6:40 pm-6:36 pm

2 stops31h 56m

$652

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/17

Showing 1-10 of 31 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 junio 18, 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 junio 18, 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
7,964 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,964 reviews
Delta
8.0
Very good
7,964 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,364 reviews
Delta
8.0
Very good
7,964 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,632 reviews
Delta
8.0
Very good
7,964 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,810 reviews
Delta
8.0
Very good
7,964 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Virgin Atlantic
7.4
Good
653 reviews
Delta
8.0
Very good
7,964 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 $214. Users have also found prices from $383 and $446 on Aer Lingus 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.

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Alternative routes for Seattle to Wales

See prices for flight routes from nearby airports that may be better suited for you.
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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 junio 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$760Average$1,132FlexibilityNo cancel feeOn-time75%

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