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Cheap flights from Washington, D.C. to Cardiff from $379

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Washington, D.C. to Cardiff

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:20 pm - 10:50 pmIAD  Washington, D.C. Dulles Intl-CWL Cardiff Wales
21h 30m2 stops Zurich Dublin
Multiple Airlines Logo
10:10 pm - 8:25 pmCWL  Cardiff Wales-IAD Washington, D.C. Dulles Intl
27h 15m2 stops Dublin Toronto Pearson Intl
$832Multiple Airlines
Mon, Oct 12 - Mon, Oct 19
Multiple Airlines Logo
8:55 pm - 10:50 pmIAD  Washington, D.C. Dulles Intl-CWL Cardiff Wales
20h 55m1 stop Dublin
Multiple Airlines Logo
1:35 pm - 7:35 pmCWL  Cardiff Wales-IAD Washington, D.C. Dulles Intl
35h 00m2 stops Malaga Dublin
$883Multiple Airlines
Mon, Oct 12 - Mon, Oct 19
Multiple Airlines Logo
4:00 pm - 11:25 pmIAD  Washington, D.C. Dulles Intl-CWL Cardiff Wales
26h 25m2 stops Toronto Pearson Intl Dublin
Multiple Airlines Logo
9:45 pm - 7:00 pmCWL  Cardiff Wales-IAD Washington, D.C. Dulles Intl
26h 15m2 stops Alicante Casablanca Mohamed V
$887Multiple Airlines
Tue, Oct 13 - Tue, Oct 20
Multiple Airlines Logo
5:15 pm - 9:45 pmIAD  Washington, D.C. Dulles Intl-CWL Cardiff Wales
23h 30m1 stop Dublin
Multiple Airlines Logo
9:35 am - 3:30 pmCWL  Cardiff Wales-IAD Washington, D.C. Dulles Intl
34h 55m2 stops Alicante Madrid Barajas
$898Multiple Airlines
Sun, Oct 11 - Sun, Oct 18
Multiple Airlines Logo
3:45 pm - 9:45 pmIAD  Washington, D.C. Dulles Intl-CWL Cardiff Wales
25h 00m3 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl Dublin
Multiple Airlines Logo
9:45 pm - 3:10 pmCWL  Cardiff Wales-IAD Washington, D.C. Dulles Intl
22h 25m2 stops Dublin Lisbon Humberto Delgado
$1,014Multiple Airlines
Sun, Oct 11 - Sun, Oct 18
Multiple Airlines Logo
9:55 am - 11:25 pmIAD  Washington, D.C. Dulles Intl-CWL Cardiff Wales
32h 30m3 stops Toronto Pearson Intl Reykjavik Keflavik Intl Dublin
Multiple Airlines Logo
9:45 pm - 7:00 pmCWL  Cardiff Wales-IAD Washington, D.C. Dulles Intl
26h 15m2 stops Alicante Casablanca Mohamed V
$1,024Multiple Airlines
Tue, Oct 13 - Tue, Oct 20
Multiple Airlines Logo
5:15 pm - 9:45 pmIAD  Washington, D.C. Dulles Intl-CWL Cardiff Wales
23h 30m1 stop Dublin
Multiple Airlines Logo
9:45 pm - 3:45 pmCWL  Cardiff Wales-IAD Washington, D.C. Dulles Intl
23h 00m1 stop Dublin
$1,029Multiple Airlines
Sun, Oct 11 - Sun, Oct 18
Multiple Airlines Logo
5:15 pm - 10:20 pmIAD  Washington, D.C. Dulles Intl-CWL Cardiff Wales
24h 05m1 stop Dublin
Multiple Airlines Logo
10:10 pm - 6:50 pmCWL  Cardiff Wales-IAD Washington, D.C. Dulles Intl
25h 40m2 stops Dublin Madrid Barajas
$1,048Multiple Airlines
Thu, Oct 15 - Mon, Oct 19
Multiple Airlines Logo
12:43 pm - 9:45 pmIAD  Washington, D.C. Dulles Intl-CWL Cardiff Wales
28h 02m2 stops Toronto Pearson Intl Dublin
Multiple Airlines Logo
9:45 pm - 3:10 pmCWL  Cardiff Wales-IAD Washington, D.C. Dulles Intl
22h 25m2 stops Dublin Lisbon Humberto Delgado
$1,050Multiple Airlines
Sun, Oct 11 - Sun, Oct 18
Multiple Airlines Logo
5:15 pm - 10:50 pmIAD  Washington, D.C. Dulles Intl-CWL Cardiff Wales
24h 35m1 stop Dublin
Multiple Airlines Logo
10:10 pm - 3:45 pmCWL  Cardiff Wales-IAD Washington, D.C. Dulles Intl
22h 35m1 stop Dublin
$1,060Multiple Airlines
Mon, Oct 12 - Mon, Oct 19

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Delta flights from Washington, D.C. to Cardiff

Our best Delta deals on Washington, D.C. to Cardiff flight tickets
Delta
Oct 13
BWI12:37 pmBaltimore/Washington
15h 38m
2 stops
CWL9:15 amCardiff Wales
Oct 20
CWL9:45 amCardiff Wales
18h 13m
2 stops
BWI10:58 pmBaltimore/Washington
$1,145
Delta
Oct 12
BWI1:55 pmBaltimore/Washington
14h 20m
2 stops
CWL9:15 amCardiff Wales
Oct 19
CWL9:45 amCardiff Wales
18h 13m
2 stops
BWI10:58 pmBaltimore/Washington
$1,196
Delta
Oct 11
DCA3:15 pmWashington, D.C. Reagan-National
13h 00m
2 stops
CWL9:15 amCardiff Wales
Oct 18
CWL9:50 amCardiff Wales
18h 05m
2 stops
DCA10:55 pmWashington, D.C. Reagan-National
$1,197

Aer Lingus flights from Washington, D.C. to Cardiff

Our best Aer Lingus deals on Washington, D.C. to Cardiff flight tickets
Aer Lingus
Oct 15
BWI9:30 pmBaltimore/Washington
33h 00m
2 stops
CWL11:30 amCardiff Wales
Oct 19
CWL12:00 pmCardiff Wales
36h 40m
2 stops
BWI7:40 pmBaltimore/Washington
$1,498
Aer Lingus
Oct 11
BWI9:35 pmBaltimore/Washington
32h 55m
2 stops
CWL11:30 amCardiff Wales
Oct 18
CWL12:00 pmCardiff Wales
36h 40m
2 stops
BWI7:40 pmBaltimore/Washington
$1,500
Aer Lingus
Dec 20
BWI6:55 pmBaltimore/Washington
35h 35m
2 stops
CWL11:30 amCardiff Wales
Dec 30
CWL12:00 pmCardiff Wales
34h 05m
2 stops
BWI5:05 pmBaltimore/Washington
$1,773

momondo Fare Finder

 
Use the filters below to find and compare flights from Washington, D.C. to Cardiff that are best for you.

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Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Cardiff

IAD Washington, D.C. Dulles Intl - CWL Cardiff Wales

IADCWL

Washington, D.C. Dulles Intl

Mon 10/12

8:20 pm-10:50 pm

2 stops21h 30m

Cardiff Wales

Mon 10/19

10:10 pm-8:25 pm

2 stops27h 15m

$832

Washington, D.C.Cardiff

IAD Washington, D.C. Dulles Intl - CWL Cardiff Wales

IADCWL

Washington, D.C. Dulles Intl

Mon 10/12

8:55 pm-10:50 pm

1 stop20h 55m

Cardiff Wales

Mon 10/19

1:35 pm-7:35 pm

2 stops35h 00m

$883

Washington, D.C.Cardiff

IAD Washington, D.C. Dulles Intl - CWL Cardiff Wales

IADCWL

Washington, D.C. Dulles Intl

Tue 10/13

4:00 pm-11:25 pm

2 stops26h 25m

Cardiff Wales

Tue 10/20

9:45 pm-7:00 pm

2 stops26h 15m

$887

Washington, D.C.Cardiff

IAD Washington, D.C. Dulles Intl - CWL Cardiff Wales

IADCWL

Washington, D.C. Dulles Intl

Sun 10/11

5:15 pm-9:45 pm

1 stop23h 30m

Cardiff Wales

Sun 10/18

9:35 am-3:30 pm

2 stops34h 55m

$898

Washington, D.C.Cardiff

IAD Washington, D.C. Dulles Intl - CWL Cardiff Wales

IADCWL

Washington, D.C. Dulles Intl

Sun 10/11

3:45 pm-9:45 pm

3 stops25h 00m

Cardiff Wales

Sun 10/18

9:45 pm-3:10 pm

2 stops22h 25m

$1,014

Washington, D.C.Cardiff

IAD Washington, D.C. Dulles Intl - CWL Cardiff Wales

IADCWL

Washington, D.C. Dulles Intl

Tue 10/13

9:55 am-11:25 pm

3 stops32h 30m

Cardiff Wales

Tue 10/20

9:45 pm-7:00 pm

2 stops26h 15m

$1,024
Quickest round-trip

Washington, D.C.Cardiff

IAD Washington, D.C. Dulles Intl - CWL Cardiff Wales

IADCWL

Washington, D.C. Dulles Intl

Sun 10/11

5:15 pm-9:45 pm

1 stop23h 30m

Cardiff Wales

Sun 10/18

9:45 pm-3:45 pm

1 stop23h 00m

$1,029

Washington, D.C.Cardiff

IAD Washington, D.C. Dulles Intl - CWL Cardiff Wales

IADCWL

Washington, D.C. Dulles Intl

Thu 10/15

5:15 pm-10:20 pm

1 stop24h 05m

Cardiff Wales

Mon 10/19

10:10 pm-6:50 pm

2 stops25h 40m

$1,048

Washington, D.C.Cardiff

IAD Washington, D.C. Dulles Intl - CWL Cardiff Wales

IADCWL

Washington, D.C. Dulles Intl

Sun 10/11

12:43 pm-9:45 pm

2 stops28h 02m

Cardiff Wales

Sun 10/18

9:45 pm-3:10 pm

2 stops22h 25m

$1,050

Washington, D.C.Cardiff

IAD Washington, D.C. Dulles Intl - CWL Cardiff Wales

IADCWL

Washington, D.C. Dulles Intl

Mon 10/12

5:15 pm-10:50 pm

1 stop24h 35m

Cardiff Wales

Mon 10/19

10:10 pm-3:45 pm

1 stop22h 35m

$1,060

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Washington, D.C. 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

Can stopping save me money on Washington, D.C. to Cardiff flights?

You could potentially save up to 8% on your flight if you consider stops on a Washington, D.C. to Cardiff flight.

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

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

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

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

Best Price Found

$379

Fastest flight time

11h 05m

Direct flights

None
The best one-way flight to Cardiff from Washington, D.C. in the past 72 hours is $379. The best round-trip flight deal from Washington, D.C. to Cardiff found on momondo in the last 72 hours is $832.
The fastest flight from Washington, D.C. to Cardiff takes 11h 05m
There are no direct flights from Washington, D.C. to Cardiff. There are no popular flight routes from Washington, D.C. to Cardiff.
Search flight deals

Frequently asked questions about flying from Washington, D.C. to Cardiff

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

    Cardiff Wales is 3537.5 mi away from Washington, D.C.. 11h 05m is a normal flight duration for this route.

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

    Prices for flights from Washington, D.C. to Cardiff Wales Airport refresh daily.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Cardiff Wales Airport.

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

    The necessary travel and health documents for your Cardiff Wales Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Cardiff?

Book flights to Cardiff if you plan to visit one of these locations
Bridgend

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

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 Washington, D.C. to Cardiff for you.

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

Yes. All flights to Cardiff from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Cardiff from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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