$310 Cheap Flights from Houston (HOU) to Watertown (ATY)

View $310 flight on Sun, Feb 1, 2026Opens in a new window

Popular airlines from Houston William Hobby Airport (HOU) to Watertown, SD (ATY-Watertown Regional)

Cheap Flights from Houston to Watertown (HOU-ATY)

Prices were available within the past 7 days and start at $310 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from William P. Hobby Airport (HOU) to Watertown Regional Airport (ATY) cost?
Snag a cheap one-way flight from $310 or cheap return flight from William P. Hobby Airport (HOU) to Watertown Regional Airport (ATY) 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 Watertown Regional Airport (ATY)?
The cheapest month to fly from HOU to ATY is , when demand is low. Off-peak months are usually when better flight deals are available between these airports.
What is the cheapest airline that flies from William P. Hobby Airport (HOU) to Watertown Regional Airport (ATY)?
To find the cheapest airline flying from HOU to ATY, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from William P. Hobby Airport (HOU) to Watertown Regional Airport (ATY)?
Direct flights from William P. Hobby Airport (HOU) to Watertown Regional Airport (ATY) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from HOU to ATY?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*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 Watertown Regional Airport (ATY)?
Choose a flight from William P. Hobby Airport (HOU) to Watertown Regional Airport (ATY) that leaves before 3 PM to reduce the likelihood of delays. Departures after this hour are on average 22% more likely to be canceled.**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 Watertown Regional Airport (ATY) last-minute?
Holding off until just before your trip to book a ticket from HOU to ATY often results in higher prices. While it's possible to find some last-minute deals, they're not always guaranteed. Be flexible with your travel plans to maximize your chances of getting a bargain.
Is it cheaper to book a HOU to ATY flight and hotel package?
You can save money by securing a HOU to ATY flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. Once you've chosen your ideal flights and accommodations, consider other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from William P. Hobby Airport (HOU) to Watertown Regional Airport (ATY)?
You can usually cancel or reschedule your HOU to ATY flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
William P. Hobby
Destination airport
Watertown Regional
Distance
1059 mi

Book with confidence

Houston to Watertown Flights

The cheapest times to fly from Houston to Watertown

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 Watertown are during the month of . You can find some of the cheapest flights from Houston to Watertown with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Houston to Watertown

Sunday is one of the best days to book for cheap flights from Houston to Watertown: 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 Watertown

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 Watertown in 2025. You can also book with separate airlines for your outbound and return journeys, from $310 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 Watertown 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 Watertown 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 Watertown Flights

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*Available to One Key members.