How does KAYAK find such low prices on flights from District of Columbia 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 District of Columbia to Cardiff.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cardiff from District of Columbia 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 District of Columbia 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 District of Columbia with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from District of Columbia 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 District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Cheap Flights from District of Columbia to Cardiff

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals

Cheap Flights from District of Columbia to Cardiff

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

Round-trip

One-way

Recent round-trip flight deals from District of Columbia to Cardiff

Sun, Dec 13 - Sun, Dec 20

5:15 pm - 8:10 amIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

9h 55m1 stop Dublin

9:05 am - 7:20 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

39h 15m2 stops Alicante Dublin

$1,061Multiple Airlines

Sun, Dec 13 - Sun, Dec 20

5:15 pm - 8:10 amIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

9h 55m1 stop Dublin

2:25 pm - 3:45 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

30h 20m1 stop Dublin

$1,072Multiple Airlines

Fri, Mar 19 - Sat, Mar 27

6:15 pm - 7:50 amIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

9h 35m1 stop Dublin

11:50 pm - 3:10 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

19h 20m2 stops Dublin Lisbon Humberto Delgado

$1,090Multiple Airlines

Fri, Mar 19 - Sat, Mar 27

6:15 pm - 7:50 amIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

9h 35m1 stop Dublin

11:50 pm - 7:15 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

23h 25m1 stop Dublin

$1,096Multiple Airlines

Sat, Dec 12 - Sat, Dec 19

8:50 pm - 1:55 pmIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

12h 05m1 stop Dublin

7:55 am - 7:05 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

40h 10m2 stops Alicante Casablanca Mohamed V

$1,117Multiple Airlines

Sat, Dec 12 - Sat, Dec 19

8:50 pm - 8:10 amIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

30h 20m1 stop Dublin

8:15 am - 3:45 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

12h 30m1 stop Dublin

$1,216Multiple Airlines

Sun, Dec 13 - Sun, Dec 20

7:40 pm - 11:45 amIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

35h 05m3 stops Reykjavik Keflavik Intl Manchester Belfast City

9:05 am - 3:45 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

35h 40m2 stops Alicante Dublin

$1,229Multiple Airlines

Thu, Nov 19 - Fri, Nov 27

8:50 pm - 3:40 pmIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

13h 50m1 stop Dublin

4:05 pm - 3:45 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

28h 40m1 stop Dublin

$1,241Multiple Airlines

Sun, Dec 13 - Sun, Dec 20

9:55 am - 7:55 pmIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

29h 00m2 stops Toronto Pearson Intl Granadilla Tenerife-Sur

9:05 am - 3:45 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

35h 40m2 stops Alicante Dublin

$1,251Multiple Airlines

Thu, Nov 19 - Fri, Nov 27

8:50 pm - 7:30 amIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

29h 40m2 stops Dublin Alicante

4:05 pm - 3:45 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

28h 40m1 stop Dublin

$1,279Multiple Airlines

Useful Info

Cheapest flight	$424

Flight from Washington Dulles Airport to Cardiff

How does KAYAK find such low prices on flights from District of Columbia 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 District of Columbia to Cardiff.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from District of Columbia to Cardiff?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cardiff from District of Columbia 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 District of Columbia 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 District of Columbia with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from District of Columbia 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 District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.