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.

$901 Cheap Flights from Cardiff to Washington, D.C. in 2026

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

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:50 am - 10:55 pmCWL Cardiff Wales-DCA Washington, D.C. Reagan-National

18h 05m2 stops Amsterdam Schiphol New York John F Kennedy Intl

12:27 pm - 9:15 amDCA Washington, D.C. Reagan-National-CWL Cardiff Wales

15h 48m2 stops Detroit Metropolitan Wayne County Amsterdam Schiphol

$901Multiple Airlines

Thu, Oct 15 - Thu, Oct 22

9:45 am - 10:58 pmCWL Cardiff Wales-BWI Baltimore/Washington

18h 13m2 stops Amsterdam Schiphol Boston Logan Intl

9:50 am - 9:15 amBWI Baltimore/Washington-CWL Cardiff Wales

18h 25m2 stops Detroit Metropolitan Wayne County Amsterdam Schiphol

$918Delta

Wed, Oct 14 - Wed, Oct 21

9:45 am - 10:58 pmCWL Cardiff Wales-BWI Baltimore/Washington

18h 13m2 stops Amsterdam Schiphol Boston Logan Intl

9:15 am - 9:15 amBWI Baltimore/Washington-CWL Cardiff Wales

19h 00m2 stops Boston Logan Intl Amsterdam Schiphol

$922Delta

Mon, Oct 12 - Mon, Oct 19

8:50 pm - 7:59 pmCWL Cardiff Wales-DCA Washington, D.C. Reagan-National

28h 09m3 stops Faro Lisbon Humberto Delgado Toronto Pearson Intl

12:50 pm - 10:20 pmDCA Washington, D.C. Reagan-National-CWL Cardiff Wales

28h 30m3 stops Ottawa Toronto Pearson Intl Dublin

$1,031Multiple Airlines

Thu, Oct 15 - Thu, Oct 22

8:50 pm - 7:59 pmCWL Cardiff Wales-DCA Washington, D.C. Reagan-National

28h 09m3 stops Faro Lisbon Humberto Delgado Toronto Pearson Intl

8:40 pm - 10:20 pmDCA Washington, D.C. Reagan-National-CWL Cardiff Wales

20h 40m2 stops Toronto Pearson Intl Dublin

$1,131Multiple Airlines

Thu, Oct 15 - Thu, Oct 22

11:50 pm - 7:40 pmCWL Cardiff Wales-BWI Baltimore/Washington

24h 50m2 stops Dublin London Heathrow

8:30 pm - 10:25 pmBWI Baltimore/Washington-CWL Cardiff Wales

20h 55m3 stops Reykjavik Keflavik Intl Kastrup Copenhagen Dublin

$1,875Multiple Airlines

Wed, Oct 14 - Wed, Oct 21

Cheap last minute flights

Enter your travel dates to find the best prices.

7:30 am - 3:45 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

13h 15m1 stop Dublin

8:40 pm - 9:20 pmIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

19h 40m1 stop Dublin

$1,132Multiple Airlines

Sat, Sep 5 - Sat, Sep 12

11:35 am - 8:24 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

13h 49m1 stop Toronto Pearson Intl

4:00 pm - 9:20 pmIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

24h 20m2 stops Toronto Pearson Intl Dublin

$1,163Multiple Airlines

Sat, Sep 5 - Sat, Sep 12

11:35 am - 6:12 pmCWL Cardiff Wales-DCA Washington, D.C. Reagan-National

11h 37m1 stop Toronto Pearson Intl

6:55 pm - 9:20 pmDCA Washington, D.C. Reagan-National-CWL Cardiff Wales

21h 25m2 stops Toronto Pearson Intl Dublin

$1,163Multiple Airlines

Sat, Sep 5 - Sat, Sep 12

7:30 am - 7:25 pmCWL Cardiff Wales-BWI Baltimore/Washington

16h 55m2 stops Dublin Reykjavik Keflavik Intl

8:30 pm - 9:20 pmBWI Baltimore/Washington-CWL Cardiff Wales

19h 50m2 stops Reykjavik Keflavik Intl Dublin

$1,226Multiple Airlines

Sat, Sep 5 - Sat, Sep 12

11:35 am - 9:48 pmCWL Cardiff Wales-DCA Washington, D.C. Reagan-National

15h 13m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

6:59 pm - 9:15 amDCA Washington, D.C. Reagan-National-CWL Cardiff Wales

33h 16m2 stops Minneapolis St Paul Amsterdam Schiphol

$1,232Multiple Airlines

Sat, Sep 5 - Sat, Sep 12

7:30 am - 8:24 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

17h 54m2 stops Dublin Toronto Pearson Intl

4:00 pm - 9:20 pmIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

24h 20m2 stops Toronto Pearson Intl Dublin

$1,280Multiple Airlines

Sat, Sep 5 - Sat, Sep 12

7:30 am - 8:24 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

17h 54m3 stops Dublin Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

4:00 pm - 9:20 pmIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

24h 20m2 stops Toronto Pearson Intl Dublin

$1,660Multiple Airlines

Sat, Sep 5 - Sat, Sep 12

9:45 am - 2:30 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

33h 45m3 stops Amsterdam Schiphol Zurich Rome Fiumicino

4:30 pm - 9:15 amIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

35h 45m3 stops Rome Fiumicino Zurich Amsterdam Schiphol

$1,676Multiple Airlines

Sat, Sep 5 - Sat, Sep 12

7:30 am - 10:31 pmCWL Cardiff Wales-DCA Washington, D.C. Reagan-National

20h 01m3 stops Dublin Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

6:55 pm - 9:20 pmDCA Washington, D.C. Reagan-National-CWL Cardiff Wales

21h 25m2 stops Toronto Pearson Intl Dublin

$1,678Multiple Airlines

Sat, Sep 5 - Sat, Sep 12

7:30 am - 6:12 pmCWL Cardiff Wales-DCA Washington, D.C. Reagan-National

15h 42m3 stops Dublin Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

6:59 am - 9:15 amDCA Washington, D.C. Reagan-National-CWL Cardiff Wales

21h 16m3 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl Amsterdam Schiphol

$2,238Multiple Airlines

Sat, Sep 5 - Sat, Sep 12

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Delta flights from Cardiff to Washington, D.C.

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

Delta

Oct 14

CWL9:45 amCardiff Wales

18h 13m

2 stops

BWI10:58 pmBaltimore/Washington

Oct 21

BWI9:50 amBaltimore/Washington

18h 25m

2 stops

CWL9:15 amCardiff Wales

$918

Delta

Oct 12

CWL9:45 amCardiff Wales

18h 13m

2 stops

BWI10:58 pmBaltimore/Washington

Oct 19

BWI9:15 amBaltimore/Washington

19h 00m

2 stops

CWL9:15 amCardiff Wales

$922

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

CardiffWashington, D.C.

CWL Cardiff Wales - DCA Washington, D.C. Reagan-National

CWLDCA

Cardiff Wales

Thu 10/15

9:50 am-10:55 pm

2 stops18h 05m

Washington, D.C. Reagan-National

Thu 10/22

12:27 pm-9:15 am

2 stops15h 48m

$901

CardiffBaltimore

CWL Cardiff Wales - BWI Baltimore/Washington

CWLBWI

Cardiff Wales

Wed 10/14

9:45 am-10:58 pm

2 stops18h 13m

Baltimore/Washington

Wed 10/21

9:50 am-9:15 am

2 stops18h 25m

$918

CardiffBaltimore

CWL Cardiff Wales - BWI Baltimore/Washington

CWLBWI

Cardiff Wales

Mon 10/12

9:45 am-10:58 pm

2 stops18h 13m

Baltimore/Washington

Mon 10/19

9:15 am-9:15 am

2 stops19h 00m

$922

CardiffWashington, D.C.

CWL Cardiff Wales - DCA Washington, D.C. Reagan-National

CWLDCA

Cardiff Wales

Thu 10/15

8:50 pm-7:59 pm

3 stops28h 09m

Washington, D.C. Reagan-National

Thu 10/22

12:50 pm-10:20 pm

3 stops28h 30m

$1,031

CardiffWashington, D.C.

CWL Cardiff Wales - DCA Washington, D.C. Reagan-National

CWLDCA

Cardiff Wales

Thu 10/15

8:50 pm-7:59 pm

3 stops28h 09m

Washington, D.C. Reagan-National

Thu 10/22

8:40 pm-10:20 pm

2 stops20h 40m

$1,131

CardiffBaltimore

CWL Cardiff Wales - BWI Baltimore/Washington

CWLBWI

Cardiff Wales

Wed 10/14

11:50 pm-7:40 pm

2 stops24h 50m

Baltimore/Washington

Wed 10/21

8:30 pm-10:25 pm

3 stops20h 55m

$1,875

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

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

You could potentially save up to 53% on your flight if you consider stops on a Cardiff to Washington, D.C. flight.

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	$901
Fastest flight time	11h 37m
Direct flights	None

The best flight deal from Cardiff to Washington, D.C. found on momondo in the last 72 hours is $901

The fastest flight from Cardiff to Washington, D.C. takes 11h 37m

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

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

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 11h 37m.
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.

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Edgewood

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Tysons

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

Washington, D.C. Reagan-National Airport

Washington, D.C. Dulles Intl Airport

Cheap flights from Cardiff to Washington, D.C. from $901

This is the cheapest round-trip 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 10/15. 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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Delta flights from Cardiff to Washington, D.C.

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

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See travel insights to Washington, D.C. from

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

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

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

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

Best Price Found

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Direct flights

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

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

Why use momondo?

An easier way to manage your Washington, D.C. trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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.

Cabin classes currently available on flights to Washington, D.C.

List of cabin classes available on flights landing in Washington, D.C.. Availability may vary depending on flight origin and airline.

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