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Cheap flights from Seattle to Wales from £268

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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CWL
15 Jan — 22 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Wales

Enter your travel dates to find the best prices.

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 16 December 2025.

Wed 31/1214:35SEA - MAN
1 stop12h 10mIcelandair
Thu 26/211:55MAN - SEA
1 stop13h 05mIcelandair
Deal found 14/12£442
Mon 15/1220:05SEA - BRS
1 stop27h 35mAer Lingus
Mon 22/1208:20BRS - SEA
1 stop18h 00mAer Lingus
Deal found 14/12£749
Mon 22/1214:05SEA - MAN
1 stop20h 35mAir France
Thu 8/117:05MAN - SEA
1 stop28h 20mAir France
Deal found 15/12£1,113
Mon 22/1214:05SEA - MAN
1 stop20h 35mDelta
Thu 8/105:50MAN - SEA
2 stops25h 32mDelta
Deal found 15/12£1,140
Mon 22/1211:20SEA - MAN
2 stops18h 40mAmerican Airlines
Thu 8/109:45MAN - SEA
2 stops20h 35mAmerican Airlines
Deal found 15/12£1,157
Thu 18/1207:00SEA - MAN
2 stops26h 00mUnited Airlines
Wed 7/113:00MAN - SEA
2 stops40h 15mUnited Airlines
Deal found 15/12£1,249
Thu 18/1213:40SEA - MAN
1 stop21h 00mDelta
Wed 7/113:00MAN - SEA
1 stop17h 25mDelta
Deal found 15/12£1,270
Thu 18/1215:05SEA - MAN
1 stop13h 40mKLM
Wed 7/113:00MAN - SEA
1 stop17h 25mKLM
Deal found 14/12£1,319
Thu 18/1207:00SEA - MAN
2 stops17h 45mLufthansa
Wed 7/111:15MAN - SEA
2 stops32h 55mLufthansa
Deal found 14/12£1,376
Mon 15/1220:05SEA - BRS
1 stop27h 35mMultiple Airlines
Mon 22/1208:20BRS - SEA
1 stop18h 00mMultiple Airlines
Deal found 14/12£1,897

Find flight deals from Seattle to Wales

Keep the following information in mind while searching for Seattle to Wales flight deals. Data was last updated 16 December 2025.

Round-trip from

£367

One-way from

£268
Icelandair
  • Icelandair
  • 30/1-6/2
  • 2 total stops
  • 25h 30m total
  • Seattle to Wales
Search Deals
5/1
  • 5/1
  • 2 total stops
  • 32h 56m total
  • Seattle to Wales
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 16 December 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 5/3

14:35-10:45

1 stop12h 10m

Manchester

Mon 9/3

11:55-18:00

1 stop13h 05m

£371

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Fri 30/1

14:35-11:00

1 stop12h 25m

Manchester

Tue 3/2

11:55-17:00

1 stop13h 05m

£391

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Mon 16/3

15:35-10:45

1 stop12h 10m

Manchester

Tue 24/3

11:55-18:00

1 stop13h 05m

£391

SeattleBristol

SEA - BRS

SEABRS

Seattle/Tacoma Intl

Wed 28/1

14:35-22:35

2 stops24h 00m

Bristol

Wed 4/2

09:00-17:00

2 stops16h 00m

£396

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Thu 29/1

14:35-22:00

2 stops23h 25m

Manchester

Thu 5/2

07:40-17:00

2 stops17h 20m

£422

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Mon 12/1

08:10-23:55

2 stops31h 45m

Manchester

Mon 19/1

17:30-19:16

3 stops33h 46m

£428

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Wed 28/1

18:50-15:00

1 stop12h 10m

Manchester

Wed 4/2

12:10-16:55

1 stop12h 45m

£443

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Mon 16/3

15:35-10:45

1 stop12h 10m

Manchester

Wed 25/3

11:55-18:00

1 stop13h 05m

£443

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Mon 16/3

07:00-08:45

2 stops18h 45m

Manchester

Wed 25/3

06:25-14:20

1 stop14h 55m

£455

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Fri 30/1

13:35-11:55

1 stop14h 20m

Manchester

Mon 2/2

16:20-11:30

1 stop27h 10m

£461

Flights are sorted by cheapest return flights first.

Deals found on 15/12

Showing 1-10 of 25 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 return 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?

    For a flight from Seattle to Wales, you will be flying from Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city.

  • How long is the flight from Seattle to Wales?

    Departing from Seattle to Wales will take you 12h 10m. The distance from Seattle to Wales is about 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 holiday 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

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to Wales?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Seattle to Wales. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Wales?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Wales from Seattle.

Can Cheapflights find flights from Seattle to Wales with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Seattle to Wales, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Seattle to Wales become cheaper?

Yes! Start tracking prices for Seattle to Wales flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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