$878+ Cheap flights from Cardiff (CWL) to District of Columbia
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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Cardiff to District of Columbia 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
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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 Cardiff to District of Columbia
Keep the following information in mind while searching for Cardiff to District of Columbia flight deals. Data was last updated June 12, 2025.
Round-trip from | $878 (KLM) |
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Find flight deals from Cardiff to District of Columbia
Cheapest flights from Cardiff to District of ColumbiaExplore the most affordable flight options available from Cardiff to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
Explore the most affordable flight options available from Cardiff to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
This KLM deal was found by Cheapflights users on 6/11. 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.
This Delta deal was found by Cheapflights users on 6/11. 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.
This TravelUp deal was found by Cheapflights users on 6/11. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 6/11. 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.
This Air France deal was found by Cheapflights users on 6/11. 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.
This Air France deal was found by Cheapflights users on 6/11. 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.
This KLM deal was found by Cheapflights users on 6/12. 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.
Cheapflights Fare Finder
Customize your flight search to find flights from Cardiff to District of Columbia 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 June 12, 2025.
Use the filters below to find and compare flights from Cardiff to District of Columbia that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
CardiffWashington, D.C.
CWL - IAD
CWLIAD
Cardiff Wales
Tue 7/8
5:15 pm-3:35 pm
1 stop27h 20m
Washington, D.C. Dulles Intl
Wed 7/16
1:00 pm-9:15 am
2 stops15h 15m
CardiffWashington, D.C.
CWL - DCA
CWLDCA
Cardiff Wales
Tue 7/8
9:50 am-11:35 pm
2 stops18h 45m
Washington, D.C. Reagan-National
Tue 7/15
10:19 am-9:15 am
2 stops17h 56m
CardiffWashington, D.C.
CWL - IAD
CWLIAD
Cardiff Wales
Wed 7/9
9:50 am-11:32 am
2 stops30h 42m
Washington, D.C. Dulles Intl
Wed 7/16
6:00 am-9:15 am
2 stops22h 15m
CardiffWashington, D.C.
CWL - IAD
CWLIAD
Cardiff Wales
Wed 7/9
9:50 am-3:35 pm
1 stop10h 45m
Washington, D.C. Dulles Intl
Sun 7/13
8:31 pm-4:45 pm
2 stops15h 14m
CardiffWashington, D.C.
CWL - IAD
CWLIAD
Cardiff Wales
Thu 7/10
9:50 am-7:15 pm
2 stops14h 25m
Washington, D.C. Dulles Intl
Tue 7/15
5:25 pm-9:15 am
1 stop10h 50m
CardiffWashington, D.C.
CWL - IAD
CWLIAD
Cardiff Wales
Thu 7/10
9:50 am-3:35 pm
1 stop10h 45m
Washington, D.C. Dulles Intl
Tue 7/15
5:25 pm-4:45 pm
1 stop18h 20m
CardiffWashington, D.C.
CWL - DCA
CWLDCA
Cardiff Wales
Sun 6/22
10:00 am-8:46 pm
2 stops15h 46m
Washington, D.C. Reagan-National
Fri 6/27
2:55 pm-9:15 am
2 stops13h 20m
Best time to book a flight from Cardiff to District of Columbia
Have a flexible travel schedule? Discover the best time to fly to District of Columbia from Cardiff with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Cardiff to District of Columbia
What is the cheapest month to book a flight from Cardiff to District of Columbia?
Currently, August is the cheapest month in which you can book a flight from Cardiff to District of Columbia (average of $241). Flying from Cardiff to District of Columbia in March is currently the most expensive (average of $290). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Rainfall in District of Columbia by month
Plan your trip to District of Columbia by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in District of Columbia ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit District of Columbia when rainfall is around 2.6 in.
Temperature in District of Columbia by month
Plan your trip to District of Columbia by taking into account the average temperature totals by month.
If weather is an important factor for your trip to District of Columbia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).
Reviews of airlines servicing District of Columbia
Get insights into the airlines that provide service to District of Columbia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to District of Columbia. Reviews last updated June 12, 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Air France from Cardiff to District of Columbia to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
Food
Boarding
Comfort
Entertainment
Crew
Reviews
Kim,May 2025
PIH - SLC
Overall
Food
Boarding
Comfort
Entertainment
Crew
Reviews
Kim,May 2025
PIH - SLC
Overall
Food
Boarding
Comfort
Entertainment
Crew
Reviews
Kim,May 2025
PIH - SLC
Overall
Food
Boarding
Comfort
Entertainment
Crew
Reviews
Kim,May 2025
PIH - SLC
Overall
Food
Boarding
Comfort
Entertainment
Crew
Reviews
Kim,May 2025
PIH - SLC