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

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

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

What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

The necessary travel and health documents for your Washington, D.C. Dulles Intl 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.

$878 Cheap Flights from Cardiff to Washington, D.C. Dulles Intl Airport in 2026/27

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

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:30 pm - 3:55 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

27h 25m1 stop Amsterdam Schiphol

5:45 pm - 9:50 amIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

11h 05m1 stop Amsterdam Schiphol

$878Virgin Atlantic

Sun, Nov 1 - Sun, Nov 8

5:30 pm - 3:45 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

27h 15m1 stop Amsterdam Schiphol

11:05 am - 5:00 pmIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

24h 55m2 stops Detroit Metropolitan Wayne County Amsterdam Schiphol

$889Virgin Atlantic

Wed, Jan 6 - Wed, Jan 13

5:30 pm - 5:30 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

29h 00m2 stops Amsterdam Schiphol New York John F Kennedy Intl

6:10 am - 9:50 amIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

22h 40m2 stops Detroit Metropolitan Wayne County Amsterdam Schiphol

$894Virgin Atlantic

Wed, Jan 6 - Wed, Jan 13

5:30 pm - 3:55 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

27h 25m1 stop Amsterdam Schiphol

6:05 am - 9:50 amIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

22h 45m2 stops Detroit Metropolitan Wayne County Amsterdam Schiphol

$949Virgin Atlantic

Sun, Nov 1 - Sun, Nov 8

10:20 am - 12:42 amCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

19h 22m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

6:32 pm - 5:00 pmIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

17h 28m2 stops New York John F Kennedy Intl Amsterdam Schiphol

$973Delta

Sun, Nov 1 - Sun, Nov 8

5:30 pm - 6:30 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

30h 00m3 stops Amsterdam Schiphol Dublin Reykjavik Keflavik Intl

7:40 pm - 9:50 amIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

33h 10m3 stops Reykjavik Keflavik Intl Dublin Amsterdam Schiphol

$1,014Multiple Airlines

Wed, Jan 6 - Wed, Jan 13

5:30 pm - 6:30 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

30h 00m3 stops Amsterdam Schiphol Paris Charles de Gaulle Reykjavik Keflavik Intl

7:40 pm - 5:00 pmIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

16h 20m3 stops Reykjavik Keflavik Intl Paris Charles de Gaulle Amsterdam Schiphol

$1,160Multiple Airlines

Sun, Nov 1 - Sun, Nov 8

10:20 am - 6:30 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

37h 10m3 stops Amsterdam Schiphol London Heathrow Reykjavik Keflavik Intl

7:40 pm - 1:00 pmIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

12h 20m2 stops Reykjavik Keflavik Intl Dublin

$1,221Multiple Airlines

Wed, Jan 6 - Wed, Jan 13

11:50 pm - 3:55 pmCWL Cardiff Wales-IAD Washington, D.C. Dulles Intl

21h 05m2 stops Dublin Amsterdam Schiphol

7:40 pm - 5:00 pmIAD Washington, D.C. Dulles Intl-CWL Cardiff Wales

16h 20m3 stops Reykjavik Keflavik Intl Kastrup Copenhagen Amsterdam Schiphol

$1,301Multiple Airlines

Sun, Nov 1 - Sun, Nov 8

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Virgin Atlantic flights from Cardiff to Washington, D.C. Dulles Intl Airport

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

Virgin Atlantic

Nov 1

CWL5:30 pmCardiff Wales

27h 25m

1 stop

IAD3:55 pmWashington, D.C. Dulles Intl

Nov 8

IAD5:45 pmWashington, D.C. Dulles Intl

11h 05m

1 stop

CWL9:50 amCardiff Wales

$878

Virgin Atlantic

Nov 1

CWL5:30 pmCardiff Wales

27h 25m

1 stop

IAD3:55 pmWashington, D.C. Dulles Intl

Nov 8

IAD6:05 amWashington, D.C. Dulles Intl

22h 45m

2 stops

CWL9:50 amCardiff Wales

$949

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CardiffWashington, D.C.

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

CWLIAD

Cardiff Wales

Sun 11/1

5:30 pm-3:55 pm

1 stop27h 25m

Washington, D.C. Dulles Intl

Sun 11/8

5:45 pm-9:50 am

1 stop11h 05m

$878

CardiffWashington, D.C.

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

CWLIAD

Cardiff Wales

Wed 1/6

5:30 pm-3:45 pm

1 stop27h 15m

Washington, D.C. Dulles Intl

Wed 1/13

11:05 am-5:00 pm

2 stops24h 55m

$889

CardiffWashington, D.C.

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

CWLIAD

Cardiff Wales

Wed 1/6

5:30 pm-5:30 pm

2 stops29h 00m

Washington, D.C. Dulles Intl

Wed 1/13

6:10 am-9:50 am

2 stops22h 40m

$894

CardiffWashington, D.C.

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

CWLIAD

Cardiff Wales

Sun 11/1

5:30 pm-3:55 pm

1 stop27h 25m

Washington, D.C. Dulles Intl

Sun 11/8

6:05 am-9:50 am

2 stops22h 45m

$949

Quickest round-trip

CardiffWashington, D.C.

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

CWLIAD

Cardiff Wales

Sun 11/1

10:20 am-12:42 am

2 stops19h 22m

Washington, D.C. Dulles Intl

Sun 11/8

6:32 pm-5:00 pm

2 stops17h 28m

$973

CardiffWashington, D.C.

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

CWLIAD

Cardiff Wales

Wed 1/6

5:30 pm-6:30 pm

3 stops30h 00m

Washington, D.C. Dulles Intl

Wed 1/13

7:40 pm-9:50 am

3 stops33h 10m

$1,014

CardiffWashington, D.C.

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

CWLIAD

Cardiff Wales

Sun 11/1

5:30 pm-6:30 pm

3 stops30h 00m

Washington, D.C. Dulles Intl

Sun 11/8

7:40 pm-5:00 pm

3 stops16h 20m

$1,160

CardiffWashington, D.C.

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

CWLIAD

Cardiff Wales

Wed 1/6

10:20 am-6:30 pm

3 stops37h 10m

Washington, D.C. Dulles Intl

Wed 1/13

7:40 pm-1:00 pm

2 stops12h 20m

$1,221

CardiffWashington, D.C.

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

CWLIAD

Cardiff Wales

Sun 11/1

11:50 pm-3:55 pm

2 stops21h 05m

Washington, D.C. Dulles Intl

Sun 11/8

7:40 pm-5:00 pm

3 stops16h 20m

$1,301

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. Dulles Intl Airport

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. Dulles Intl Airport flights?

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

When to book flights from Cardiff to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Cardiff to Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport (CWL to IAD) flight deals and tips

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

Best Price Found	$878
Fastest flight time	27h 15m
Direct flights	None

The best flight deal from Cardiff to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $878

The fastest flight from Cardiff to Washington, D.C. Dulles Intl Airport takes 27h 15m

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

Search flight deals

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

How far is Cardiff Wales to Washington, D.C. Dulles Intl by plane?
Cardiff Wales and Washington, D.C. Dulles Intl are 3552.6 mi apart from one another. Typically, this will take 27h 15m by plane in normal conditions.
When did momondo last update prices for flights from Cardiff Wales Airport to Washington, D.C. Dulles Intl Airport?
Prices for flights from Cardiff Wales Airport to Washington, D.C. Dulles Intl Airport refresh daily.
How old do you have to be to fly from Cardiff Wales Airport to Washington, D.C. Dulles Intl 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 Cardiff Wales Airport to Washington, D.C. Dulles Intl Airport.
What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?
The necessary travel and health documents for your Washington, D.C. Dulles Intl 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.

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Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Cardiff.

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

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Cardiff with this policy.

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

Once all potential Cardiff to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Cardiff to Washington, D.C. right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Washington, D.C. from Cardiff. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.