When did momondo last update prices for flights from Washington to Wales?

Prices for flights from Washington to Wales are refreshed on a daily basis.

How many operators does momondo search for flights from Washington to Wales?

As of September 2026, there is 1 operator available to choose from for flights from Washington to Wales.

How old do you have to be to fly from Washington to Wales?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to Wales.

What documentation or ID do you need to fly to Wales?

The necessary travel and health documents for your Wales trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$303 Cheap Flights from Washington to Wales in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington to Wales

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:35 pm - 5:00 pmSEA Seattle/Tacoma Intl-CWL Cardiff Wales

18h 25m1 stop Amsterdam Schiphol

5:30 pm - 11:50 amCWL Cardiff Wales-SEA Seattle/Tacoma Intl

26h 20m1 stop Amsterdam Schiphol

$1,210KLM

Sun, Nov 1 - Tue, Dec 1

6:55 pm - 9:45 amSEA Seattle/Tacoma Intl-CWL Cardiff Wales

30h 50m2 stops Portland Amsterdam Schiphol

5:30 pm - 11:50 amCWL Cardiff Wales-SEA Seattle/Tacoma Intl

26h 20m1 stop Amsterdam Schiphol

$1,272Air Europa

Sun, Nov 1 - Tue, Dec 1

6:55 pm - 9:45 amSEA Seattle/Tacoma Intl-CWL Cardiff Wales

30h 50m2 stops Portland Amsterdam Schiphol

5:30 pm - 12:35 pmCWL Cardiff Wales-SEA Seattle/Tacoma Intl

51h 05m2 stops Amsterdam Schiphol Vancouver Intl

$1,272Multiple Airlines

Sun, Nov 1 - Tue, Dec 1

6:45 pm - 8:30 amSEA Seattle/Tacoma Intl-CWL Cardiff Wales

29h 45m2 stops London Heathrow Belfast City

9:00 am - 11:25 amCWL Cardiff Wales-SEA Seattle/Tacoma Intl

58h 25m2 stops Belfast City London Heathrow

$1,506Multiple Airlines

Tue, Dec 29 - Sun, Jan 3

2:35 pm - 9:15 pmSEA Seattle/Tacoma Intl-CWL Cardiff Wales

22h 40m3 stops Reykjavik Keflavik Intl Glasgow Intl Dublin

9:00 am - 11:25 amCWL Cardiff Wales-SEA Seattle/Tacoma Intl

58h 25m2 stops Belfast City London Heathrow

$1,770Multiple Airlines

Tue, Dec 29 - Sun, Jan 3

2:35 pm - 5:00 pmSEA Seattle/Tacoma Intl-CWL Cardiff Wales

18h 25m1 stop Amsterdam Schiphol

10:20 am - 11:53 pmCWL Cardiff Wales-SEA Seattle/Tacoma Intl

21h 33m2 stops Amsterdam Schiphol Minneapolis St Paul

$2,890Delta

Tue, Dec 29 - Sun, Jan 3

2:35 pm - 5:00 pmSEA Seattle/Tacoma Intl-CWL Cardiff Wales

18h 25m1 stop Amsterdam Schiphol

5:30 pm - 11:50 amCWL Cardiff Wales-SEA Seattle/Tacoma Intl

26h 20m1 stop Amsterdam Schiphol

$2,984KLM

Tue, Dec 29 - Sun, Jan 3

6:45 pm - 8:30 amSEA Seattle/Tacoma Intl-CWL Cardiff Wales

29h 45m3 stops London Heathrow Glasgow Intl Belfast City

9:00 am - 11:47 pmCWL Cardiff Wales-SEA Seattle/Tacoma Intl

22h 47m3 stops Belfast City London Heathrow Chicago O'Hare Intl

$7,029Multiple Airlines

Tue, Dec 29 - Sun, Jan 3

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KLM flights from State of Washington to Wales

Our best KLM deals on State of Washington to Wales flight tickets

KLM

Nov 1

SEA2:35 pmSeattle/Tacoma Intl

18h 25m

1 stop

CWL5:00 pmCardiff Wales

Dec 1

CWL5:30 pmCardiff Wales

26h 20m

1 stop

SEA11:50 amSeattle/Tacoma Intl

$1,210

KLM

Dec 29

SEA2:35 pmSeattle/Tacoma Intl

18h 25m

1 stop

CWL5:00 pmCardiff Wales

Jan 3

CWL5:30 pmCardiff Wales

26h 20m

1 stop

SEA11:50 amSeattle/Tacoma Intl

$2,984

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Sun 11/1

2:35 pm-5:00 pm

1 stop18h 25m

Cardiff Wales

Tue 12/1

5:30 pm-11:50 am

1 stop26h 20m

$1,210

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Sun 11/1

6:55 pm-9:45 am

2 stops30h 50m

Cardiff Wales

Tue 12/1

5:30 pm-11:50 am

1 stop26h 20m

$1,272

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Sun 11/1

6:55 pm-9:45 am

2 stops30h 50m

Cardiff Wales

Tue 12/1

5:30 pm-12:35 pm

2 stops51h 05m

$1,272

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Tue 12/29

6:45 pm-8:30 am

2 stops29h 45m

Cardiff Wales

Sun 1/3

9:00 am-11:25 am

2 stops58h 25m

$1,506

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Tue 12/29

2:35 pm-9:15 pm

3 stops22h 40m

Cardiff Wales

Sun 1/3

9:00 am-11:25 am

2 stops58h 25m

$1,770

Quickest round-trip

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Tue 12/29

2:35 pm-5:00 pm

1 stop18h 25m

Cardiff Wales

Sun 1/3

10:20 am-11:53 pm

2 stops21h 33m

$2,890

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Tue 12/29

2:35 pm-5:00 pm

1 stop18h 25m

Cardiff Wales

Sun 1/3

5:30 pm-11:50 am

1 stop26h 20m

$2,984

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Tue 12/29

6:45 pm-8:30 am

3 stops29h 45m

Cardiff Wales

Sun 1/3

9:00 am-11:47 pm

3 stops22h 47m

$7,029

Cheapest one-way

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Wed 10/21

7:35 pm-6:55 am

2 stops51h 20m

$303

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Wed 10/21

3:40 pm-7:20 am

3 stops31h 40m

$331

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first

How to get the cheapest flight ticket from State of Washington to Wales

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Washington to Wales?

KLM is the most popular carrier operating from Washington to Wales

Cheap State of Washington to Wales flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Wales

Best Price Found	$303
Fastest flight time	12h 00m
Direct flights	None

The best one-way flight to Wales from State of Washington in the past 72 hours is $303. The best round-trip flight deal from State of Washington to Wales found on momondo in the last 72 hours is $1,210.

The fastest flight from State of Washington to Wales takes 12h 00m

There are no direct flights from State of Washington to Wales. There are no popular flight routes from State of Washington to Wales.

Search flight deals

Frequently asked questions about flying from Washington to Wales

When did momondo last update prices for flights from Washington to Wales?
Prices for flights from Washington to Wales are refreshed on a daily basis.
How many operators does momondo search for flights from Washington to Wales?
As of September 2026, there is 1 operator available to choose from for flights from Washington to Wales.
How old do you have to be to fly from Washington to Wales?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to Wales.
What documentation or ID do you need to fly to Wales?
The necessary travel and health documents for your Wales trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from State of Washington to Wales

Compare and see reviews for airlines that fly from State of Washington to Wales with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $1,519	Free Cancellation	Rating 7.8 8,591 reviews		Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Wales?

It is quick and easy to find Washington to Wales flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Wales that suits you.

Can I find flights from Washington to Wales with flexible booking policies on momondo?

All flight searches from Washington to Wales on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington to Wales?

Once all potential Washington to Wales flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Washington to Wales right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Wales from Washington. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.