How do I get Price Alerts for flights from Cardiff to Washington, D.C.?

Price Alerts will notify you by email when the price for flights to Washington, D.C. from Cardiff decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

How can I save money on flights from Cardiff to Washington, D.C. with momondo?

Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore” . Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

How does momondo find its flight prices?

We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

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.

$861 Cheap Flights from Cardiff to Washington, D.C. in 2025/26

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0 bags

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

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7:55 am - 6:30 pmCWL-IAD

15h 35m2 stops

7:40 pm - 4:05 pmIAD-CWL

15h 25m2 stops

$665Multiple Airlines

Find Deal

Wed, Dec 24 - Wed, Dec 31

7:55 am - 6:30 pmCWL-IAD

15h 35m2 stops

7:40 pm - 9:50 amIAD-CWL

33h 10m3 stops

$865Multiple Airlines

Find Deal

Wed, Dec 24 - Wed, Dec 31

10:20 am - 7:11 pmCWL-IAD

13h 51m2 stops

12:35 pm - 9:50 amIAD-CWL

16h 15m2 stops

$1,054Virgin Atlantic

Find Deal

Thu, Feb 19 - Mon, Feb 23

10:20 am - 10:59 pmCWL-DCA

17h 39m2 stops

11:10 am - 4:55 pmDCA-CWL

24h 45m2 stops

$1,054Virgin Atlantic

Find Deal

Thu, Feb 19 - Mon, Feb 23

10:20 am - 10:59 pmCWL-DCA

17h 39m2 stops

7:30 pm - 4:55 pmDCA-CWL

16h 25m2 stops

$1,056Delta

Find Deal

Thu, Feb 19 - Mon, Feb 23

10:20 am - 7:11 pmCWL-IAD

13h 51m2 stops

6:00 am - 4:55 pmIAD-CWL

29h 55m2 stops

$1,056Virgin Atlantic

Find Deal

Thu, Feb 19 - Mon, Feb 23

10:20 am - 10:59 pmCWL-DCA

17h 39m2 stops

12:59 pm - 9:50 amDCA-CWL

15h 51m2 stops

$1,059Delta

Find Deal

Thu, Feb 19 - Mon, Feb 23

10:20 am - 7:11 pmCWL-IAD

13h 51m2 stops

6:05 pm - 4:55 pmIAD-CWL

17h 50m1 stop

$1,059Virgin Atlantic

Find Deal

Thu, Feb 19 - Mon, Feb 23

5:25 pm - 4:05 pmCWL-IAD

27h 40m1 stop

6:05 pm - 9:50 amIAD-CWL

10h 45m1 stop

$1,383KLM

Find Deal

Wed, Dec 24 - Wed, Dec 31

12:00 pm - 6:45 pmCWL-BWI

35h 45m2 stops

8:35 pm - 8:05 amBWI-CWL

30h 30m2 stops

$1,630British Airways

Find Deal

Wed, Dec 24 - Wed, Dec 31

Virgin Atlantic flights from Cardiff to Washington, D.C.

Our best Virgin Atlantic deals on Cardiff to Washington, D.C. flight tickets

Virgin Atlantic

Feb 19

CWL10:20 amCardiff Wales

30h 32m

2 stops

IAD11:52 amWashington, D.C. Dulles Intl

Feb 23

IAD6:05 pmWashington, D.C. Dulles Intl

10h 45m

1 stop

CWL9:50 amCardiff Wales

$1,054

Find similar

Virgin Atlantic

Feb 19

CWL10:20 amCardiff Wales

13h 51m

2 stops

IAD7:11 pmWashington, D.C. Dulles Intl

Feb 23

IAD6:00 amWashington, D.C. Dulles Intl

29h 55m

2 stops

CWL4:55 pmCardiff Wales

$1,056

Find similar

Virgin Atlantic

Feb 19

CWL10:20 amCardiff Wales

13h 51m

2 stops

IAD7:11 pmWashington, D.C. Dulles Intl

Feb 23

IAD6:05 pmWashington, D.C. Dulles Intl

17h 50m

1 stop

CWL4:55 pmCardiff Wales

$1,059

Find similar

Delta flights from Cardiff to Washington, D.C.

Our best Delta deals on Cardiff to Washington, D.C. flight tickets

Delta

Feb 19

CWL10:20 amCardiff Wales

17h 39m

2 stops

DCA10:59 pmWashington, D.C. Reagan-National

Feb 23

DCA7:30 pmWashington, D.C. Reagan-National

16h 25m

2 stops

CWL4:55 pmCardiff Wales

$1,056

Find similar

Delta

Feb 19

CWL10:20 amCardiff Wales

17h 39m

2 stops

DCA10:59 pmWashington, D.C. Reagan-National

Feb 23

DCA12:59 pmWashington, D.C. Reagan-National

15h 51m

2 stops

CWL9:50 amCardiff Wales

$1,059

Find similar

Delta

Feb 19

CWL10:20 amCardiff Wales

30h 36m

2 stops

BWI11:56 amBaltimore/Washington

Feb 23

BWI3:37 pmBaltimore/Washington

20h 18m

2 stops

CWL4:55 pmCardiff Wales

$1,939

Find similar

Fly from

Fly to

Route

Depart

Return

Price

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Wed 12/24

7:55 am-6:30 pm

2 stops15h 35m

Washington, D.C. Dulles Intl

Wed 12/31

7:40 pm-4:05 pm

2 stops15h 25m

$665

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Wed 12/24

7:55 am-6:30 pm

2 stops15h 35m

Washington, D.C. Dulles Intl

Wed 12/31

7:40 pm-9:50 am

3 stops33h 10m

$865

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Thu 2/19

10:20 am-7:11 pm

2 stops13h 51m

Washington, D.C. Dulles Intl

Mon 2/23

12:35 pm-9:50 am

2 stops16h 15m

$1,054

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Thu 2/19

10:20 am-10:59 pm

2 stops17h 39m

Washington, D.C. Reagan-National

Mon 2/23

11:10 am-4:55 pm

2 stops24h 45m

$1,054

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Thu 2/19

10:20 am-10:59 pm

2 stops17h 39m

Washington, D.C. Reagan-National

Mon 2/23

7:30 pm-4:55 pm

2 stops16h 25m

$1,056

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Thu 2/19

10:20 am-7:11 pm

2 stops13h 51m

Washington, D.C. Dulles Intl

Mon 2/23

6:00 am-4:55 pm

2 stops29h 55m

$1,056

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Thu 2/19

10:20 am-10:59 pm

2 stops17h 39m

Washington, D.C. Reagan-National

Mon 2/23

12:59 pm-9:50 am

2 stops15h 51m

$1,059

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Thu 2/19

10:20 am-7:11 pm

2 stops13h 51m

Washington, D.C. Dulles Intl

Mon 2/23

6:05 pm-4:55 pm

1 stop17h 50m

$1,059

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Wed 12/24

5:25 pm-4:05 pm

1 stop27h 40m

Washington, D.C. Dulles Intl

Wed 12/31

6:05 pm-9:50 am

1 stop10h 45m

$1,383

CardiffBaltimore

CWL - BWI

CWLBWI

Cardiff Wales

Wed 12/24

12:00 pm-6:45 pm

2 stops35h 45m

Baltimore/Washington

Wed 12/31

8:35 pm-8:05 am

2 stops30h 30m

$1,630

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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.

Direct flights	None

There are no direct flights from Cardiff to Washington, D.C.. There are no popular flight routes from Cardiff to Washington, D.C..

Search flight deals

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 13h 51m.
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.

How do I get Price Alerts for flights from Cardiff to Washington, D.C.?
Price Alerts will notify you by email when the price for flights to Washington, D.C. from Cardiff decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.
How can I save money on flights from Cardiff to Washington, D.C. with momondo?
Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.
How does momondo find its flight prices?
We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

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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.