$798+ Cheap flights from District of Columbia to Cardiff (CWL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/30. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — CWL
Feb 28 — Mar 71
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from District of Columbia to Cardiff with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from District of Columbia to Cardiff
Cheapest flights from District of Columbia to CardiffExplore the most affordable flight options available from District of Columbia to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.
Explore the most affordable flight options available from District of Columbia to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.
This KLM deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/302:35 pm
DCA
- CWL
2 stops14h 15m
KLM
Sun 2/110:15 am
CWL
- DCA
2 stops18h 26m
KLM
Deal found 1/26![KLM logo]()
$798
This Delta deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:10 pm
IAD
- CWL
1 stop17h 35m
Delta
Wed 8/269:45 am
CWL
- IAD
1 stop10h 50m
Delta
Deal found 1/27![Delta logo]()
$801
This Delta deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/612:45 pm
IAD
- CWL
2 stops15h 30m
Delta
Wed 5/279:45 am
CWL
- IAD
1 stop10h 50m
Delta
Deal found 1/28![Delta logo]()
$844
This Delta deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/610:05 am
DCA
- CWL
2 stops18h 10m
Delta
Wed 5/279:45 am
CWL
- DCA
2 stops18h 27m
Delta
Deal found 1/28![Delta logo]()
$854
This KLM deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/612:45 pm
IAD
- CWL
2 stops15h 30m
KLM
Wed 5/279:45 am
CWL
- IAD
2 stops19h 24m
KLM
Deal found 1/28![KLM logo]()
$854
This KLM deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/3012:40 pm
IAD
- CWL
2 stops16h 10m
KLM
Sun 2/15:30 pm
CWL
- IAD
1 stop27h 35m
KLM
Deal found 1/26![KLM logo]()
$903
This Delta deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/136:30 pm
DCA
- CWL
2 stops18h 25m
Delta
Fri 3/2010:20 am
CWL
- DCA
2 stops16h 16m
Delta
Deal found 1/27![Delta logo]()
$970
This Ovago deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/135:40 pm
IAD
- CWL
1 stop10h 35m
Scandinavian Airlines
Mon 8/175:15 pm
CWL
- IAD
1 stop27h 20m
Scandinavian Airlines
Deal found 1/28![Scandinavian Airlines logo]()
$996
This Trip.com deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/137:05 pm
IAD
- CWL
1 stop17h 50m
Multiple Airlines
Fri 3/205:15 pm
CWL
- IAD
2 stops30h 04m
Multiple Airlines
Deal found 1/27![Multiple Airlines logo]()
$1,008
This Air France deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1212:30 pm
IAD
- CWL
2 stops15h 45m
Multiple Airlines
Wed 8/269:45 am
CWL
- IAD
2 stops19h 25m
Multiple Airlines
Deal found 1/27![Multiple Airlines logo]()
$1,075
This Mytrip deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/134:10 pm
DCA
- CWL
3 stops23h 30m
Multiple Airlines
Fri 3/2010:25 pm
CWL
- DCA
3 stops27h 31m
Multiple Airlines
Deal found 1/27![Multiple Airlines logo]()
$1,108
This KLM deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/137:05 pm
IAD
- CWL
1 stop17h 50m
KLM
Fri 3/205:15 pm
CWL
- IAD
1 stop27h 50m
KLM
Deal found 1/27![KLM logo]()
$1,165
Find flight deals from District of Columbia to Cardiff
Keep the following information in mind while searching for District of Columbia to Cardiff flight deals. Data was last updated January 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $844 (Delta) |
Cheapflights Fare Finder
Customize your flight search to find flights from District of Columbia to Cardiff that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from District of Columbia to Cardiff that are best for you.
Fly from
District of Columbia
Fly to
Cardiff
Route
Depart
Return
Price
Washington, D.C.Cardiff
IAD - CWL
IADCWL
Washington, D.C. Dulles Intl
Wed 5/6
12:45 pm-9:15 am
2 stops15h 30m
Cardiff Wales
Wed 5/27
9:45 am-3:35 pm
1 stop10h 50m
$844
Washington, D.C.Cardiff
IAD - CWL
IADCWL
Washington, D.C. Dulles Intl
Wed 5/6
12:45 pm-9:15 am
2 stops15h 30m
Cardiff Wales
Wed 5/27
9:45 am-12:09 am
2 stops19h 24m
$854
Washington, D.C.Cardiff
DCA - CWL
DCACWL
Washington, D.C. Reagan-National
Wed 5/6
10:05 am-9:15 am
2 stops18h 10m
Cardiff Wales
Wed 5/27
9:45 am-11:12 pm
2 stops18h 27m
$854
Washington, D.C.Cardiff
DCA - CWL
DCACWL
Washington, D.C. Reagan-National
Fri 3/13
6:30 pm-4:55 pm
2 stops18h 25m
Cardiff Wales
Fri 3/20
10:20 am-10:36 pm
2 stops16h 16m
$970
Washington, D.C.Cardiff
IAD - CWL
IADCWL
Washington, D.C. Dulles Intl
Fri 3/13
7:05 pm-4:55 pm
1 stop17h 50m
Cardiff Wales
Fri 3/20
5:15 pm-7:19 pm
2 stops30h 04m
$1,008
Washington, D.C.Cardiff
DCA - CWL
DCACWL
Washington, D.C. Reagan-National
Fri 3/13
4:10 pm-7:40 pm
3 stops23h 30m
Cardiff Wales
Fri 3/20
10:25 pm-9:56 pm
3 stops27h 31m
$1,108
Washington, D.C.Cardiff
IAD - CWL
IADCWL
Washington, D.C. Dulles Intl
Fri 3/13
7:05 pm-4:55 pm
1 stop17h 50m
Cardiff Wales
Fri 3/20
5:15 pm-5:05 pm
1 stop27h 50m
$1,165
Best time to book a flight from District of Columbia to Cardiff
Have a flexible travel schedule? Discover the best time to fly to Cardiff from District of Columbia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from District of Columbia to Cardiff
No data available for this route at this time. Please check back soon.
Related info for your journey
Find useful and relevant information for your journey from District of Columbia to Cardiff. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Cardiff?
Book flights to Cardiff if you plan to visit one of these locationsBridgend