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Cheap flights from District of Columbia to Cardiff from $308

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to Cardiff departing on 10/8. 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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0 bags

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Find the cheapest flights from District of Columbia to Cardiff

Cheap round-trip flights

Logo
5:20 pm - 7:30 amIAD-CWL
9h 10m1 stop
Logo
7:55 am - 3:50 pmCWL-IAD
12h 55m1 stop
$814
Find Deal
Fri, Sep 5 - Thu, Sep 18
Virgin Atlantic Logo
5:25 pm - 9:10 amIAD-CWL
10h 45m1 stop
Virgin Atlantic Logo
5:15 pm - 3:35 pmCWL-IAD
27h 20m1 stop
$912Virgin Atlantic
Find Deal
Fri, Sep 5 - Thu, Sep 18
Logo
9:05 pm - 4:20 pmIAD-CWL
14h 15m2 stops
Logo
7:55 am - 3:50 pmCWL-IAD
12h 55m1 stop
$929
Find Deal
Fri, Sep 5 - Thu, Sep 18
Logo
5:20 pm - 7:30 amIAD-CWL
9h 10m1 stop
Logo
11:20 am - 3:20 pmCWL-IAD
33h 00m2 stops
$930
Find Deal
Fri, Sep 5 - Thu, Sep 18
KLM Logo
5:25 pm - 9:15 amIAD-CWL
10h 50m1 stop
KLM Logo
9:50 am - 3:35 pmCWL-IAD
10h 45m1 stop
$935KLM
Find Deal
Mon, Oct 13 - Wed, Oct 22
KLM Logo
12:27 pm - 9:15 amIAD-CWL
15h 48m2 stops
KLM Logo
5:15 pm - 3:35 pmCWL-IAD
27h 20m1 stop
$940KLM
Find Deal
Mon, Oct 13 - Wed, Oct 22
Delta Logo
5:25 pm - 9:10 amIAD-CWL
10h 45m1 stop
Delta Logo
9:50 am - 7:37 pmCWL-IAD
14h 47m2 stops
$945Delta
Find Deal
Fri, Sep 12 - Sun, Sep 14
KLM Logo
1:55 pm - 9:10 amDCA-CWL
14h 15m2 stops
KLM Logo
9:50 am - 8:42 pmCWL-DCA
15h 52m2 stops
$945KLM
Find Deal
Fri, Sep 5 - Thu, Sep 18
Delta Logo
12:08 pm - 9:15 amIAD-CWL
16h 07m2 stops
Delta Logo
9:50 am - 3:35 pmCWL-IAD
10h 45m1 stop
$1,011Delta
Find Deal
Thu, Sep 18 - Tue, Sep 30
Air France Logo
6:30 pm - 4:45 pmIAD-CWL
17h 15m2 stops
Air France Logo
5:15 pm - 3:35 pmCWL-IAD
27h 20m1 stop
$5,289Air France
Find Deal
Thu, Oct 16 - Mon, Oct 20

Virgin Atlantic flights from District of Columbia to Cardiff

Our best Virgin Atlantic deals on District of Columbia to Cardiff flight tickets
Virgin Atlantic
Sep 5
IAD5:25 pmWashington, D.C. Dulles Intl
10h 45m
1 stop
CWL9:10 amCardiff Wales
Sep 18
CWL5:15 pmCardiff Wales
27h 20m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$912
Find similar
Virgin Atlantic
Dec 3
DCA6:05 amWashington, D.C. Reagan-National
22h 45m
2 stops
CWL9:50 amCardiff Wales
Dec 7
CWL10:20 amCardiff Wales
18h 09m
2 stops
DCA11:29 pmWashington, D.C. Reagan-National
$949
Find similar
Virgin Atlantic
Dec 3
DCA11:00 amWashington, D.C. Reagan-National
17h 50m
2 stops
CWL9:50 amCardiff Wales
Dec 7
CWL5:30 pmCardiff Wales
31h 44m
2 stops
DCA8:14 pmWashington, D.C. Reagan-National
$950
Find similar

KLM flights from District of Columbia to Cardiff

Our best KLM deals on District of Columbia to Cardiff flight tickets
KLM
Oct 13
IAD5:25 pmWashington, D.C. Dulles Intl
10h 50m
1 stop
CWL9:15 amCardiff Wales
Oct 22
CWL9:50 amCardiff Wales
10h 45m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$935
Find similar
KLM
Oct 13
IAD12:27 pmWashington, D.C. Dulles Intl
15h 48m
2 stops
CWL9:15 amCardiff Wales
Oct 22
CWL5:15 pmCardiff Wales
27h 20m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$940
Find similar
KLM
Sep 5
DCA1:55 pmWashington, D.C. Reagan-National
14h 15m
2 stops
CWL9:10 amCardiff Wales
Sep 18
CWL9:50 amCardiff Wales
15h 52m
2 stops
DCA8:42 pmWashington, D.C. Reagan-National
$945
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia to Cardiff that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 11, 2025.
Use the filters below to find and compare flights from District of Columbia to Cardiff that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Fri 9/5

5:20 pm-7:30 am

1 stop9h 10m

Cardiff Wales

Thu 9/18

7:55 am-3:50 pm

1 stop12h 55m

$814

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Fri 9/5

5:25 pm-9:10 am

1 stop10h 45m

Cardiff Wales

Thu 9/18

5:15 pm-3:35 pm

1 stop27h 20m

$912

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Fri 9/5

9:05 pm-4:20 pm

2 stops14h 15m

Cardiff Wales

Thu 9/18

7:55 am-3:50 pm

1 stop12h 55m

$929

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Fri 9/5

5:20 pm-7:30 am

1 stop9h 10m

Cardiff Wales

Thu 9/18

11:20 am-3:20 pm

2 stops33h 00m

$930

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Mon 10/13

5:25 pm-9:15 am

1 stop10h 50m

Cardiff Wales

Wed 10/22

9:50 am-3:35 pm

1 stop10h 45m

$935

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Mon 10/13

12:27 pm-9:15 am

2 stops15h 48m

Cardiff Wales

Wed 10/22

5:15 pm-3:35 pm

1 stop27h 20m

$940

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Fri 9/12

5:25 pm-9:10 am

1 stop10h 45m

Cardiff Wales

Sun 9/14

9:50 am-7:37 pm

2 stops14h 47m

$945

Washington, D.C.Cardiff

DCA - CWL

DCACWL

Washington, D.C. Reagan-National

Fri 9/5

1:55 pm-9:10 am

2 stops14h 15m

Cardiff Wales

Thu 9/18

9:50 am-8:42 pm

2 stops15h 52m

$945

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Thu 9/18

12:08 pm-9:15 am

2 stops16h 07m

Cardiff Wales

Tue 9/30

9:50 am-3:35 pm

1 stop10h 45m

$1,011

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Thu 10/16

6:30 pm-4:45 pm

2 stops17h 15m

Cardiff Wales

Mon 10/20

5:15 pm-3:35 pm

1 stop27h 20m

$5,289

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to Cardiff from

How to get the cheapest flight ticket from District of Columbia to Cardiff

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 day to depart on your flight to Cardiff?

The cheapest day to depart on your flight to Cardiff is on a Tuesday when prices can be found for as low as $766. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,282. These prices are subject to change though, so be sure to set up a Price Alert for flights to Cardiff.

What is the cheapest time of day to depart on your flight to Cardiff?

Flying to Cardiff from District of Columbia in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $799 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $809 on average. Flights to Cardiff from District of Columbia at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Cheap District of Columbia to Cardiff flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Cardiff

Best Price Found

$308

Fastest flight time

9h 05m

Direct flights

None

Airports in Cardiff

1 airport
The best one-way flight to Cardiff from District of Columbia in the past 72 hours is $308. The best round-trip flight deal from District of Columbia to Cardiff found on momondo in the last 72 hours is $814.
The fastest flight from District of Columbia to Cardiff takes 9h 05m
There are no direct flights from District of Columbia to Cardiff. Popular non-direct routes for this connection are Washington, D.C. Reagan-National Airport - Cardiff Wales Airport and Washington, D.C. Dulles Intl Airport - Cardiff Wales Airport.
There is 1 airport near Cardiff: Cardiff Wales (CWL)
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  • When did momondo last update prices for flights from District of Columbia to Cardiff Wales Airport?

    Prices for flights from District of Columbia to Cardiff Wales Airport were last updated today.

  • How many operators does momondo search for flights from District of Columbia to Cardiff Wales Airport?

  • How old do you have to be to fly from District of Columbia to Cardiff Wales Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from District of Columbia to Cardiff Wales Airport.

  • What documentation or ID do you need to fly to Cardiff Wales Airport?

    The travel and health documents you'll need for your trip to Cardiff Wales Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Cardiff Wales Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from District of Columbia to Cardiff

Compare and see reviews for airlines that fly from District of Columbia to Cardiff with momondo
Airline
Rating
Free Cancellation
Price
KLMPriceFrom $765Free CancellationRating
7.8
1,381 reviews
Search KLM flights

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Cardiff?

It is quick and easy to find District of Columbia to Cardiff flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Cardiff that suits you.

Can I find flights from District of Columbia to Cardiff with flexible booking policies on momondo?

momondo does allow users to show only those flights to Cardiff from District of Columbia which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from District of Columbia to Cardiff?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from District of Columbia to Cardiff.

I’m not ready to book a flight from District of Columbia to Cardiff right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Cardiff, momondo offers a useful price alert feature which will track prices for flights to Cardiff from District of Columbia and alert you when they change.

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