How does KAYAK find such low prices on flights from Washington to Cardiff?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Cardiff. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Cardiff?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cardiff from Washington is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Washington to Cardiff?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Cardiff with an airline and back to Washington with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Cardiff?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Cardiff from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$257 CHEAP FLIGHTS from Washington to Cardiff

CWL

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Flight Deals

Cheap Flights from Washington to Cardiff

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington to Cardiff that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Recent round-trip flight deals from Washington to Cardiff

Sun, Oct 12 - Sun, Oct 19

2:00 pm - 4:45 pmSEA-CWL

18h 45m1 stop

9:50 am - 11:50 amCWL-SEA

34h 00m1 stop

$936KLM

Find Deal

Sun, Oct 12 - Sun, Oct 19

8:40 am - 12:45 pmSEA-CWL

20h 05m3 stops

11:00 am - 8:29 pmCWL-SEA

41h 29m3 stops

$1,096

Find Deal

Sun, Oct 12 - Sun, Oct 19

5:00 pm - 4:45 pmSEA-CWL

15h 45m2 stops

9:50 am - 11:50 amCWL-SEA

34h 00m1 stop

$1,118KLM

Find Deal

Sun, Oct 12 - Sun, Oct 19

8:40 am - 12:45 pmSEA-CWL

20h 05m3 stops

11:00 am - 10:43 pmCWL-SEA

19h 43m2 stops

$1,158

Find Deal

Sun, Oct 12 - Sun, Oct 19

8:20 pm - 11:30 amSEA-CWL

31h 10m2 stops

12:00 pm - 11:10 amCWL-SEA

55h 10m2 stops

$1,216

Find Deal

Cheapest round-trip

$936

KLM

Sun 10/12Sun 10/19

SEA - CWL • 1 stop

Cheapest one-way

$257

Multiple Airlines

Thu 10/16

SEA - CWL • 2 stops

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KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Cardiff!

Useful Info

High season	May
Cheapest flight	$257

Most popular time to fly and prices are also 1% lower on average.

Flight from Seattle to Cardiff

How does KAYAK find such low prices on flights from Washington to Cardiff?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Cardiff.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Cardiff?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cardiff from Washington is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Washington to Cardiff?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Cardiff with an airline and back to Washington with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Cardiff?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Cardiff from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Barry

Everything you need to know for your flight to Cardiff

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

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Information on the airport you'll fly into in Cardiff

Cardiff (CWL)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.

CWL

$257 Find Cheap Flights from Washington to Cardiff

KAYAK searches hundreds of travel sites at once for deals on flights to Cardiff

Cheap Flights from Washington to Cardiff

Recent round-trip flight deals from Washington to Cardiff

Recent one-way flight deals from Washington to Cardiff

Everything you should know

Good to know

FAQs for booking flights from Washington to Cardiff

How does KAYAK find such low prices on flights from Washington to Cardiff?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Cardiff.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Cardiff?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cardiff from Washington is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Washington to Cardiff?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Cardiff with an airline and back to Washington with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Cardiff?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Cardiff from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Cardiff?

Everything you need to know for your flight to Cardiff

Information on the airport you'll fly into in Cardiff

Cabin class types available on flights to Washington

Complete your trip to Cardiff with a hotel stay or car rental

Find direct flights for Cardiff

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Flights from domestic origins to Cardiff

Choose which airport to fly into in Cardiff