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Cheap flights from Cardiff to Washington, D.C. from $391

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Cardiff to Washington, D.C. departing on 9/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Cardiff to Washington, D.C.

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Cardiff to Washington, D.C..
9:45 am - 3:35 pmCWL-IAD
10h 50m1 stop
5:25 pm - 4:45 pmIAD-CWL
18h 20m1 stop
$842Delta
Find Deal
Sat, Apr 26 - Sun, Apr 27
7:55 am - 11:45 amCWL-IAD
32h 50m2 stops
1:30 pm - 10:05 pmIAD-CWL
27h 35m2 stops
Thu, May 15 - Thu, May 22
7:55 am - 3:50 pmCWL-IAD
12h 55m1 stop
10:40 pm - 10:05 pmIAD-CWL
18h 25m2 stops
Thu, May 15 - Thu, May 22
9:50 am - 3:35 pmCWL-IAD
10h 45m1 stop
5:25 pm - 9:15 amIAD-CWL
10h 50m1 stop
$916KLM
Find Deal
Thu, May 15 - Thu, May 22
7:55 am - 7:25 pmCWL-IAD
16h 30m2 stops
8:45 pm - 9:10 amIAD-CWL
31h 25m3 stops
Thu, May 15 - Thu, May 22
5:35 pm - 3:35 pmCWL-IAD
27h 00m1 stop
5:25 pm - 4:50 pmIAD-CWL
18h 25m1 stop
$997KLM
Find Deal
Sat, Jun 28 - Sat, Jul 19
9:45 am - 7:53 pmCWL-IAD
15h 08m2 stops
8:33 pm - 4:45 pmIAD-CWL
15h 12m2 stops
$1,018Delta
Find Deal
Sat, Apr 26 - Sun, Apr 27
5:35 pm - 3:35 pmCWL-IAD
27h 00m1 stop
9:20 pm - 4:50 pmIAD-CWL
14h 30m2 stops
$1,020KLM
Find Deal
Sat, Jun 28 - Sat, Jul 19
9:45 am - 11:33 pmCWL-DCA
18h 48m2 stops
1:30 pm - 9:15 amDCA-CWL
14h 45m2 stops
$1,080Delta
Find Deal
Sat, Jun 28 - Sat, Jul 19
9:45 am - 10:55 pmCWL-IAD
18h 10m2 stops
12:30 pm - 9:15 amIAD-CWL
15h 45m2 stops
$1,113Delta
Find Deal
Sat, Jun 28 - Sat, Jul 19

KLM flights from Cardiff to Washington, D.C.

Our best KLM deals on Cardiff to Washington, D.C. flight tickets
KLM
May 15
CWL9:50 amCardiff Wales
10h 45m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
May 22
IAD5:25 pmWashington, D.C. Dulles Intl
10h 50m
1 stop
CWL9:15 amCardiff Wales
KLM
Jun 28
CWL5:35 pmCardiff Wales
27h 00m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
Jul 19
IAD5:25 pmWashington, D.C. Dulles Intl
18h 25m
1 stop
CWL4:50 pmCardiff Wales
KLM
Jun 28
CWL5:35 pmCardiff Wales
27h 00m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
Jul 19
IAD9:20 pmWashington, D.C. Dulles Intl
14h 30m
2 stops
CWL4:50 pmCardiff Wales

Delta flights from Cardiff to Washington, D.C.

Our best Delta deals on Cardiff to Washington, D.C. flight tickets
Delta
Apr 26
CWL9:45 amCardiff Wales
10h 50m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
Apr 27
IAD5:25 pmWashington, D.C. Dulles Intl
18h 20m
1 stop
CWL4:45 pmCardiff Wales
Delta
Apr 26
CWL9:45 amCardiff Wales
15h 08m
2 stops
IAD7:53 pmWashington, D.C. Dulles Intl
Apr 27
IAD8:33 pmWashington, D.C. Dulles Intl
15h 12m
2 stops
CWL4:45 pmCardiff Wales
Delta
Jun 28
CWL9:45 amCardiff Wales
18h 48m
2 stops
DCA11:33 pmWashington, D.C. Reagan-National
Jul 19
DCA1:30 pmWashington, D.C. Reagan-National
14h 45m
2 stops
CWL9:15 amCardiff Wales

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Cardiff to Washington, D.C.

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 Cardiff Wales to Washington, D.C.?

KLM and Delta are the most popular carriers operating from Cardiff Wales to Washington, D.C.

When to book flights from Cardiff to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from Cardiff to Washington, D.C. according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Cardiff to Washington, D.C. (CWL to WAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Cardiff to Washington, D.C.

Best Price Found

$391

Fastest flight time

10h 45m

Direct flights

None

Airports in Washington, D.C.

3 airports
The best one-way flight to Washington, D.C. from Cardiff in the past 72 hours is $391. The best round-trip flight deal from Cardiff to Washington, D.C. found on momondo in the last 72 hours is $842.
The fastest flight from Cardiff to Washington, D.C. takes 10h 45m
There are no direct flights from Cardiff to Washington, D.C.. Popular non-direct routes for this connection are Cardiff Wales Airport - Baltimore/Washington Airport, Cardiff Wales Airport - Washington, D.C. Reagan-National Airport and Cardiff Wales Airport - Washington, D.C. Dulles Intl Airport.
There are 3 airports near Washington, D.C.: Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD)

  • How far is Cardiff Wales to Washington, D.C. by plane?

    A flight from Cardiff Wales to Washington, D.C. will travel around 3537.5 mi. In terms of flight time, this usually takes a little over 10h 45m.

  • When did momondo last update prices for flights from Cardiff Wales Airport to Washington, D.C.?

    Prices for flights from Cardiff Wales Airport to Washington, D.C. were last updated today.

  • How old do you have to be to fly from Cardiff Wales Airport to Washington, D.C.?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Cardiff Wales Airport to Washington, D.C..

  • What documentation or ID do you need to fly to Washington, D.C.?

    The travel and health documents required for your trip to Washington, D.C. can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C.. We always recommend checking with your airline or a trusted third party such as IATA to get advice.


Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Arlington
Gettysburg
National Harbor
Laurel
Silver Spring
Woodbridge
Tysons
Fredericksburg
Waldorf
Manassas
Gaithersburg
Glen Burnie
Linthicum Heights
Rockville
Fairfax
Towson
Reston
Hyattsville
Hanover

Why use momondo?

Why should I use momondo to find a flight deal from Cardiff to Washington, D.C.?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Cardiff to Washington, D.C. for you.

Can I find flights from Cardiff to Washington, D.C. with flexible booking policies on momondo?

momondo does allow users to show only those flights to Washington, D.C. from Cardiff which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Cardiff to Washington, D.C.?

Once you have performed a search for Cardiff to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Cardiff to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington, D.C. and let you know when they change.


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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.