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.

$567 Cheap Flights from Cardiff to Washington, D.C. in 2025

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0 bags

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

Round-trip

One-way

Cheap round-trip flights

12:25 pm - 6:55 pmCWL-IAD

11h 30m1 stop

5:20 pm - 7:30 amIAD-CWL

9h 10m1 stop

$567

Find Deal

Fri, Sep 12 - Fri, Sep 19

12:25 pm - 6:55 pmCWL-IAD

11h 30m1 stop

5:20 pm - 7:30 amIAD-CWL

9h 10m1 stop

$569

Find Deal

Fri, Sep 12 - Fri, Sep 19

9:50 am - 7:37 pmCWL-IAD

14h 47m2 stops

5:25 pm - 9:10 amIAD-CWL

10h 45m1 stop

$865KLM

Find Deal

Fri, Sep 12 - Fri, Sep 19

9:50 am - 7:37 pmCWL-IAD

14h 47m2 stops

5:25 pm - 9:10 amIAD-CWL

10h 45m1 stop

$869KLM

Find Deal

Fri, Sep 12 - Fri, Sep 19

9:50 am - 6:59 pmCWL-DCA

14h 09m2 stops

11:10 am - 9:10 amDCA-CWL

17h 00m2 stops

$869Delta

Find Deal

Fri, Sep 12 - Fri, Sep 19

9:50 am - 4:27 pmCWL-IAD

35h 37m2 stops

8:17 pm - 9:15 amIAD-CWL

31h 58m2 stops

$875Virgin Atlantic

Find Deal

Fri, Sep 12 - Fri, Sep 19

9:50 am - 7:37 pmCWL-IAD

14h 47m2 stops

9:20 pm - 5:05 pmIAD-CWL

14h 45m2 stops

$890KLM

Find Deal

Fri, Sep 12 - Fri, Sep 19

5:15 pm - 5:40 pmCWL-BWI

29h 25m3 stops

6:50 pm - 9:15 amBWI-CWL

33h 25m3 stops

$932

Find Deal

Fri, Sep 12 - Fri, Sep 19

9:00 am - 7:45 pmCWL-BWI

15h 45m2 stops

9:35 pm - 11:30 amBWI-CWL

32h 55m2 stops

$1,230British Airways

Find Deal

Fri, Sep 12 - Fri, Sep 19

9:00 am - 7:45 pmCWL-BWI

39h 45m2 stops

9:35 pm - 11:30 amBWI-CWL

32h 55m2 stops

$1,310British Airways

Find Deal

Fri, Sep 12 - Fri, Sep 19

British Airways flights from Cardiff to Washington, D.C.

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

British Airways

Sep 12

CWL9:00 amCardiff Wales

15h 45m

2 stops

BWI7:45 pmBaltimore/Washington

Sep 19

BWI9:35 pmBaltimore/Washington

32h 55m

2 stops

CWL11:30 amCardiff Wales

$1,230

Find similar

British Airways

Sep 12

CWL9:00 amCardiff Wales

39h 45m

2 stops

BWI7:45 pmBaltimore/Washington

Sep 19

BWI9:35 pmBaltimore/Washington

32h 55m

2 stops

CWL11:30 amCardiff Wales

$1,310

Find similar

KLM flights from Cardiff to Washington, D.C.

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

KLM

Sep 12

CWL9:50 amCardiff Wales

14h 47m

2 stops

IAD7:37 pmWashington, D.C. Dulles Intl

Sep 19

IAD5:25 pmWashington, D.C. Dulles Intl

10h 45m

1 stop

CWL9:10 amCardiff Wales

$865

Find similar

KLM

Sep 12

CWL9:50 amCardiff Wales

14h 47m

2 stops

IAD7:37 pmWashington, D.C. Dulles Intl

Sep 19

IAD5:25 pmWashington, D.C. Dulles Intl

10h 45m

1 stop

CWL9:10 amCardiff Wales

$869

Find similar

KLM

Sep 12

CWL9:50 amCardiff Wales

14h 47m

2 stops

IAD7:37 pmWashington, D.C. Dulles Intl

Sep 19

IAD9:20 pmWashington, D.C. Dulles Intl

14h 45m

2 stops

CWL5:05 pmCardiff Wales

$890

Find similar

Fly from

Fly to

Route

Depart

Return

Price

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Fri 9/12

12:25 pm-6:55 pm

1 stop11h 30m

Washington, D.C. Dulles Intl

Fri 9/19

5:20 pm-7:30 am

1 stop9h 10m

$567

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Fri 9/12

12:25 pm-6:55 pm

1 stop11h 30m

Washington, D.C. Dulles Intl

Fri 9/19

5:20 pm-7:30 am

1 stop9h 10m

$569

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Fri 9/12

9:50 am-7:37 pm

2 stops14h 47m

Washington, D.C. Dulles Intl

Fri 9/19

5:25 pm-9:10 am

1 stop10h 45m

$865

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Fri 9/12

9:50 am-7:37 pm

2 stops14h 47m

Washington, D.C. Dulles Intl

Fri 9/19

5:25 pm-9:10 am

1 stop10h 45m

$869

CardiffWashington, D.C.

CWL - DCA

CWLDCA

Cardiff Wales

Fri 9/12

9:50 am-6:59 pm

2 stops14h 09m

Washington, D.C. Reagan-National

Fri 9/19

11:10 am-9:10 am

2 stops17h 00m

$869

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Fri 9/12

9:50 am-4:27 pm

2 stops35h 37m

Washington, D.C. Dulles Intl

Fri 9/19

8:17 pm-9:15 am

2 stops31h 58m

$875

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Fri 9/12

9:50 am-7:37 pm

2 stops14h 47m

Washington, D.C. Dulles Intl

Fri 9/19

9:20 pm-5:05 pm

2 stops14h 45m

$890

CardiffBaltimore

CWL - BWI

CWLBWI

Cardiff Wales

Fri 9/12

5:15 pm-5:40 pm

3 stops29h 25m

Baltimore/Washington

Fri 9/19

6:50 pm-9:15 am

3 stops33h 25m

$932

CardiffBaltimore

CWL - BWI

CWLBWI

Cardiff Wales

Fri 9/12

9:00 am-7:45 pm

2 stops15h 45m

Baltimore/Washington

Fri 9/19

9:35 pm-11:30 am

2 stops32h 55m

$1,230

CardiffBaltimore

CWL - BWI

CWLBWI

Cardiff Wales

Fri 9/12

9:00 am-7:45 pm

2 stops39h 45m

Baltimore/Washington

Fri 9/19

9:35 pm-11:30 am

2 stops32h 55m

$1,310

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.

Best Price Found	$567
Fastest flight time	10h 45m
Direct flights	None
Airports in Washington, D.C.	3 airports

The best flight deal from Cardiff to Washington, D.C. found on momondo in the last 72 hours is $567

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)

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 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.

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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Reston

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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.