£621 Find Cheap Flights from Cardiff to District of Columbia

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from Cardiff to District of Columbia departing on 13/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to District of Columbia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Cardiff to District of Columbia, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Cardiff to District of Columbia, as well as popular online travel agencies
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Flight Deals

Book Cheap Cardiff to District of Columbia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Cardiff to District of Columbia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Cardiff to District of Columbia

Fri, 13 Mar - Fri, 20 Mar
Multiple Airlines Logo
10:20 - 22:36
CWL
-
DCA
16h 16m
2 stops
Multiple Airlines Logo
17:09 - 09:50
DCA
-
CWL
12h 41m
2 stops
£621Multiple Airlines
Fri, 13 Mar - Fri, 20 Mar
British Airways Logo
08:35 - 20:55
CWL
-
IAD
16h 20m
2 stops
British Airways Logo
19:20 - 11:30
IAD
-
CWL
36h 10m
2 stops
£636British Airways
Fri, 13 Mar - Fri, 20 Mar
Multiple Airlines Logo
17:15 - 17:05
CWL
-
IAD
27h 50m
1 stop
Multiple Airlines Logo
19:29 - 09:50
IAD
-
CWL
34h 21m
2 stops
£662Multiple Airlines
Fri, 13 Mar - Fri, 20 Mar
KLM Logo
17:15 - 17:05
CWL
-
IAD
27h 50m
1 stop
KLM Logo
19:05 - 09:50
IAD
-
CWL
10h 45m
1 stop
£700KLM
Fri, 13 Mar - Fri, 20 Mar
Multiple Airlines Logo
17:15 - 18:05
CWL
-
DCA
28h 50m
3 stops
Multiple Airlines Logo
06:59 - 16:55
DCA
-
CWL
29h 56m
3 stops
£965Multiple Airlines
Fri, 13 Mar - Fri, 20 Mar
Multiple Airlines Logo
22:25 - 16:15
CWL
-
IAD
21h 50m
2 stops
Multiple Airlines Logo
20:40 - 19:40
IAD
-
CWL
19h 00m
3 stops
£987Multiple Airlines
Fri, 13 Mar - Fri, 20 Mar
Multiple Airlines Logo
10:20 - 12:45
CWL
-
IAD
30h 25m
3 stops
Multiple Airlines Logo
20:40 - 19:40
IAD
-
CWL
19h 00m
3 stops
£990Multiple Airlines
Fri, 13 Mar - Fri, 20 Mar
Multiple Airlines Logo
22:25 - 21:56
CWL
-
DCA
27h 31m
3 stops
Multiple Airlines Logo
11:00 - 09:50
DCA
-
CWL
18h 50m
2 stops
£1,232Multiple Airlines
Booking Insights

KAYAK's insights & trends for Cardiff to District of Columbia flights

Get data-powered insights and trends into flights from Cardiff to District of Columbia to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Cardiff to District of Columbia?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest return tickets from Cardiff to District of Columbia were found on British Airways (£636) and KLM (£700).

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Good to know - Cheap tickets from Cardiff to District of Columbia

Cheapest flight£621
Flight from Cardiff to Washington, D.C.

FAQs - booking District of Columbia flights

  • How does KAYAK find such low prices on flights from Cardiff to District of Columbia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Cardiff to District of Columbia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Cardiff to District of Columbia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Cardiff to District of Columbia is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Cardiff to District of Columbia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Cardiff to District of Columbia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Cardiff to District of Columbia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Cardiff to District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Cardiff to District of Columbia

 
See real verified KAYAK customer reviews for airlines flying from Cardiff to District of Columbia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Cardiff to District of Columbia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.7
KLMOverall score based on 1443 reviews
7.6Comfort
7.3Food
7.1Entertainment
8.4Crew
7.8Boarding
Airline reviews

I’m grateful for the KLM Air France shuttle bus service to Ottawa. However due to construction and other issues related to the chaotic Uber pickup system at YUL, it’s a challenge to find the Kelios bus service to Ottawa. The signs are not clear or even available. No staff to guide passengers. It’s a stressful experience.

4.0 OkayShereen, Dec 2025
Read more KLM reviews

I’m grateful for the KLM Air France shuttle bus service to Ottawa. However due to construction and other issues related to the chaotic Uber pickup system at YUL, it’s a challenge to find the Kelios bus service to Ottawa. The signs are not clear or even available. No staff to guide passengers. It’s a stressful experience.

Flight was on time, staff are friendly and helpful onboard.

Terrible last row seats many seats available but no offer to move to better seat

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Couldn’t get boarding pass in SLC even with help from a redcoat, so had to find a desk in AMS to get boarding pass. Technical problems so not sure why. Very inconvenient. The KLM app is not as user friendly as most apps. Also had to wait almost an hour on the tarmac for a fuel truck, which caused us to miss a connecting bus in LUX.

The immigration hall in Amsterdam was understaffed, so passport checking was slower than it should be for a major airport. They need to get the automatic readers up and running for non EU passport holders. Waiting in line after a long flight feels a bit abusive.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

Everything you need to know for your flight from Cardiff to District of Columbia

Information on your arrival and departure airports

Cardiff (CWL)