IAD - CWL

$621 Find Cheap Flights from Washington Dulles Airport to Cardiff

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Cardiff departing on 5/10. 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
$828
Multiple Airlines
Tue 4/21Tue 4/28
IAD - CWL • 1 stop
Cheapest one-way
$621
Aer Lingus
Sun 5/10
IAD - CWL • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Dulles Intl and Cardiff. You'll need at least 1 connection.
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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, Apr 21 - Tue, Apr 28
Multiple Airlines Logo
9:05 pm - 11:25 pm
IAD
-
CWL
21h 20m
1 stop
Multiple Airlines Logo
9:45 pm - 7:00 pm
CWL
-
IAD
26h 15m
2 stops
$828Multiple Airlines
Sun, Jun 14 - Sun, Jun 21
Multiple Airlines Logo
5:15 pm - 9:45 pm
IAD
-
CWL
23h 30m
1 stop
Multiple Airlines Logo
5:40 pm - 7:15 pm
CWL
-
IAD
30h 35m
2 stops
$835Multiple Airlines
Sat, Apr 25 - Sat, May 2
Multiple Airlines Logo
8:20 pm - 9:20 pm
IAD
-
CWL
20h 00m
2 stops
Multiple Airlines Logo
7:30 am - 5:00 pm
CWL
-
IAD
14h 30m
2 stops
$843Multiple Airlines
Wed, Apr 22 - Wed, Apr 29
Multiple Airlines Logo
8:20 pm - 4:45 pm
IAD
-
CWL
15h 25m
2 stops
Multiple Airlines Logo
9:45 am - 5:00 pm
CWL
-
IAD
36h 15m
2 stops
$844Multiple Airlines
Sat, Apr 4 - Sun, Apr 19
KLM Logo
5:40 pm - 9:15 am
IAD
-
CWL
10h 35m
1 stop
KLM Logo
5:15 pm - 3:35 pm
CWL
-
IAD
27h 20m
1 stop
$846KLM
Sun, Jun 14 - Fri, Jun 19
Multiple Airlines Logo
5:15 pm - 9:45 pm
IAD
-
CWL
23h 30m
1 stop
Multiple Airlines Logo
5:45 pm - 3:45 pm
CWL
-
IAD
27h 00m
2 stops
$851Multiple Airlines
Mon, Jun 15 - Tue, Jun 23
Multiple Airlines Logo
5:15 pm - 10:50 pm
IAD
-
CWL
24h 35m
1 stop
Multiple Airlines Logo
9:45 pm - 7:00 pm
CWL
-
IAD
26h 15m
2 stops
$861Multiple Airlines
Mon, Apr 20 - Mon, Apr 27
Virgin Atlantic Logo
6:10 pm - 9:15 am
IAD
-
CWL
10h 05m
1 stop
Virgin Atlantic Logo
9:45 am - 3:35 pm
CWL
-
IAD
10h 50m
1 stop
$869Virgin Atlantic
Wed, Apr 22 - Wed, Apr 29
Delta Logo
7:19 pm - 4:45 pm
IAD
-
CWL
16h 26m
2 stops
Delta Logo
9:45 am - 3:35 pm
CWL
-
IAD
10h 50m
1 stop
$873Delta
Mon, Apr 20 - Mon, Apr 27
Delta Logo
12:45 pm - 9:15 am
IAD
-
CWL
15h 30m
2 stops
Delta Logo
9:45 am - 3:35 pm
CWL
-
IAD
10h 50m
1 stop
$874Delta
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 KLM ($846) and Virgin Atlantic ($869).

Find deals

Good to know

Cheapest flight$621
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 $621 for a one-way ticket and $828 for a round-trip.

  • 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)