IAD - CWL

$742 Find Cheap Flights from Washington Dulles Airport to Cardiff

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Cardiff departing on 1/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Cardiff, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Cardiff, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$742
Virgin Atlantic
Tue 1/20Tue 1/27
IAD - CWL • 2 stops
Cheapest one-way
Multiple Airlines
Sun 12/7
IAD - CWL • multi-stop
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We hope you love your trip to Cardiff!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Dulles Intl to Cardiff (IAD-CWL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl 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.

Recent round-trip flight deals from Dulles Intl to Cardiff

Tue, Jan 20 - Tue, Jan 27
Virgin Atlantic Logo
6:00 am - 9:50 am
IAD
-
CWL
22h 50m2 stops
Virgin Atlantic Logo
10:20 am - 7:09 pm
CWL
-
IAD
13h 49m2 stops
$742Virgin Atlantic
Mon, Jan 19 - Mon, Jan 26
KLM Logo
6:05 pm - 9:50 am
IAD
-
CWL
10h 45m1 stop
KLM Logo
5:15 pm - 4:05 pm
CWL
-
IAD
27h 50m1 stop
$778KLM
Mon, Jan 19 - Mon, Jan 26
KLM Logo
12:40 pm - 9:50 am
IAD
-
CWL
16h 10m2 stops
KLM Logo
5:15 pm - 4:05 pm
CWL
-
IAD
27h 50m1 stop
$783KLM
Mon, Jan 19 - Mon, Jan 26
Delta Logo
12:40 pm - 9:50 am
IAD
-
CWL
16h 10m2 stops
Delta Logo
10:20 am - 7:09 pm
CWL
-
IAD
13h 49m2 stops
$793Delta
Wed, Mar 25 - Sun, Mar 29
Virgin Atlantic Logo
1:19 pm - 9:50 am
IAD
-
CWL
16h 31m2 stops
Virgin Atlantic Logo
9:50 am - 3:35 pm
CWL
-
IAD
10h 45m1 stop
$897Virgin Atlantic
Wed, Mar 25 - Sun, Mar 29
KLM Logo
7:05 pm - 9:50 am
IAD
-
CWL
10h 45m1 stop
KLM Logo
9:50 am - 3:35 pm
CWL
-
IAD
10h 45m1 stop
$994KLM
Wed, Mar 25 - Sun, Mar 29
Virgin Atlantic Logo
1:19 pm - 9:50 am
IAD
-
CWL
16h 31m2 stops
Virgin Atlantic Logo
9:50 am - 7:19 pm
CWL
-
IAD
14h 29m2 stops
$1,074Virgin Atlantic
Tue, Jan 20 - Tue, Jan 27
Multiple Airlines Logo
7:40 pm - 3:30 pm
IAD
-
CWL
14h 50m2 stops
Multiple Airlines Logo
10:20 am - 8:54 pm
CWL
-
IAD
39h 34m3 stops
$1,107Multiple Airlines
Tue, Jan 20 - Tue, Jan 27
Multiple Airlines Logo
9:45 am - 3:30 pm
IAD
-
CWL
24h 45m3 stops
Multiple Airlines Logo
10:20 am - 8:54 pm
CWL
-
IAD
39h 34m3 stops
$1,154Multiple Airlines
Booking Insights

KAYAK's insights & trends for Dulles Intl to Cardiff flights

Get data-powered insights and trends into flights from Dulles Intl to Cardiff to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Washington Dulles Airport to Cardiff?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Washington Dulles Airport to Cardiff were found on Virgin Atlantic ($742) and KLM ($778).

Find deals

Good to know

Cheapest flight$742
Flight from Washington Dulles Airport to Cardiff

When to book flights from Dulles Intl to Cardiff

Are your dates flexible? Find out the best times to travel from Dulles Intl to Cardiff based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Cardiff flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Cardiff?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Cardiff was $742 for a round-trip ticket.

  • Do I need a passport to fly between Washington Dulles Airport and Cardiff?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Washington Dulles Airport and on arrival in Cardiff.

  • Which airports will I be using when flying from Washington Dulles Airport to Cardiff?

    Washington Dulles Airport airport is called Washington, D.C. Dulles Intl and the only airport in Cardiff is Cardiff Wales.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Cardiff?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport 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 Dulles Airport to Cardiff.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cardiff from Washington Dulles Airport 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 Dulles Airport 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 Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and CWL can sometimes prove cheaper using this method.

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

Everything you need to know for your flight from Dulles Intl to Cardiff

Information on your arrival and departure airports

Washington Dulles Airport (IAD)
Cardiff (CWL)