$453 Cheap Flights from Houston (HOU) to Cardiff (CWL)

View $453 flight on Tue, Nov 18, 2025Opens in a new window

Popular airlines from Houston William Hobby Airport (HOU) to Cardiff International Airport (CWL)

Cheap Flights from Houston to Cardiff (HOU-CWL)

Prices were available within the past 7 days and start at $453 for one-way flights and $836 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Nov 18 - Tue, Nov 25
HOU
Houston
CWL
Cardiff
$836 Roundtrip, found 5 days ago
$836
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Nov 18 from Houston to Cardiff, returning Tue, Nov 25, priced at $836 found 5 days ago
Delta
Tue, Nov 18 - Tue, Nov 25
HOU
Houston
CWL
Cardiff
$842 Roundtrip, found 3 days ago
$842
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Nov 18 from Houston to Cardiff, returning Tue, Nov 25, priced at $842 found 3 days ago
Virgin Atlantic
Thu, Nov 6 - Thu, Nov 13
HOU
Houston
CWL
Cardiff
$859 Roundtrip, found 5 days ago
$859
Roundtrip
found 5 days ago
Select Virgin Atlantic flight, departing Thu, Nov 6 from Houston to Cardiff, returning Thu, Nov 13, priced at $859 found 5 days ago

Alternative airports near Cardiff

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Cardiff Intl. CWL. Cheapest and Closest option available. Average driving time to city center is 20 minutes. Flights from $1,498
CWL
Cardiff Intl.
CheapestClosest
Average driving time to city center20 min
Flights from $1,498

Frequently asked questions

How much does a flight from William P. Hobby Airport (HOU) to Cardiff Intl. Airport (CWL) cost?
Get a cheap one-way flight from $453 or cheap return flight from $836 from William P. Hobby Airport (HOU) to Cardiff Intl. Airport (CWL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from William P. Hobby Airport (HOU) to Cardiff Intl. Airport (CWL)?
The cheapest month to fly from HOU to CWL is November, when demand is low. Off-peak season is typically when you'll find lower airfares between these airports.
What is the cheapest airline that flies from William P. Hobby Airport (HOU) to Cardiff Intl. Airport (CWL)?
To find the cheapest airline that'll fly you from HOU to CWL, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from William P. Hobby Airport (HOU) to Cardiff Intl. Airport (CWL)?
There aren't any daily direct flights available from William P. Hobby Airport (HOU) to Cardiff Intl. Airport (CWL). But you can book flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be on your way in no time at all.
What day of the week has the most flights from HOU to CWL?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary depending on various factors, such as the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from William P. Hobby Airport (HOU) to Cardiff Intl. Airport (CWL)?
Book a flight from William P. Hobby Airport (HOU) to Cardiff Intl. Airport (CWL) that takes off before 3 PM to reduce the risk of cancellations. Departures after this time have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from William P. Hobby Airport (HOU) to Cardiff Intl. Airport (CWL) last-minute?
Holding off until just before your departure to book a ticket from HOU to CWL generally means paying more. Although you may find some last-minute discounts, there's no guarantee. Be flexible with your travel plans to maximize your chances of getting a bargain.
Is it cheaper to book a HOU to CWL flight and hotel package?
Compared with arranging hotels and flights separately, booking a HOU to CWL flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one easy place will take the stress out of travel planning. Simply secure your flights and choose from our wide range of hotels, then tailor your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from William P. Hobby Airport (HOU) to Cardiff Intl. Airport (CWL)?
If you reserved your HOU to CWL flight in the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

Travel information

Origin airport
William P. Hobby
Destination airport
Cardiff Intl.
Roundtrip price
$836
Distance
4724 mi

Book with confidence

Houston to Cardiff Flights

The cheapest times to fly from Houston to Cardiff

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Houston to Cardiff are during the month of November. You can find some of the cheapest flights from Houston to Cardiff with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Houston to Cardiff

Sunday is one of the best days to book for cheap flights from Houston to Cardiff: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Houston to Cardiff

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Houston to Cardiff in 2025. You can also book with separate airlines for your outbound and return journeys, from $453 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Houston to Cardiff flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Houston to Cardiff airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Houston to Cardiff Flights

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*Available to One Key members.