$447 Cheap Flights from Gulfport (GPT) to Watertown (ATY)

View $447 flight on Thu, Dec 25, 2025Opens in a new window

Popular airlines from Gulfport - Biloxi Intl. Airport (GPT) to Watertown, SD (ATY-Watertown Regional)

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Cheap Flights from Gulfport to Watertown (GPT-ATY)

Prices were available within the past 7 days and start at $447 for one-way flights and $568 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Dec 24 - Wed, Dec 31
GPT
Gulfport
ATY
Watertown
$568 Roundtrip, found 3 days ago
$568
Roundtrip
found 3 days ago
Select United flight, departing Wed, Dec 24 from Gulfport to Watertown, returning Wed, Dec 31, priced at $568 found 3 days ago
United
Wed, Dec 24 - Tue, Dec 30
GPT
Gulfport
ATY
Watertown
$613 Roundtrip, found 3 days ago
$613
Roundtrip
found 3 days ago
Select United flight, departing Wed, Dec 24 from Gulfport to Watertown, returning Tue, Dec 30, priced at $613 found 3 days ago
United
Wed, Dec 24 - Sun, Jan 4
GPT
Gulfport
ATY
Watertown
$636 Roundtrip, found 3 days ago
$636
Roundtrip
found 3 days ago
Select United flight, departing Wed, Dec 24 from Gulfport to Watertown, returning Sun, Jan 4, priced at $636 found 3 days ago
United
Wed, Dec 24 - Mon, Dec 29
GPT
Gulfport
ATY
Watertown
$693 Roundtrip, found 3 days ago
$693
Roundtrip
found 3 days ago
Select United flight, departing Wed, Dec 24 from Gulfport to Watertown, returning Mon, Dec 29, priced at $693 found 3 days ago
Delta
Thu, Dec 25 - Mon, Dec 29
GPT
Gulfport
ATY
Watertown
$749 Roundtrip, found 3 days ago
$749
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Dec 25 from Gulfport to Watertown, returning Mon, Dec 29, priced at $749 found 3 days ago
Delta
Wed, Dec 24 - Thu, Jan 1
GPT
Gulfport
ATY
Watertown
$759 Roundtrip, found 3 days ago
$759
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Dec 24 from Gulfport to Watertown, returning Thu, Jan 1, priced at $759 found 3 days ago
Delta
Thu, Dec 25 - Tue, Dec 30
GPT
Gulfport
ATY
Watertown
$772 Roundtrip, found 3 days ago
$772
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Dec 25 from Gulfport to Watertown, returning Tue, Dec 30, priced at $772 found 3 days ago
United
Wed, Dec 24 - Sat, Jan 3
GPT
Gulfport
ATY
Watertown
$781 Roundtrip, found 3 days ago
$781
Roundtrip
found 3 days ago
Select United flight, departing Wed, Dec 24 from Gulfport to Watertown, returning Sat, Jan 3, priced at $781 found 3 days ago
United
Fri, Dec 26 - Wed, Dec 31
GPT
Gulfport
ATY
Watertown
$791 Roundtrip, found 3 days ago
$791
Roundtrip
found 3 days ago
Select United flight, departing Fri, Dec 26 from Gulfport to Watertown, returning Wed, Dec 31, priced at $791 found 3 days ago
Delta
Fri, Dec 26 - Tue, Dec 30
GPT
Gulfport
ATY
Watertown
$793 Roundtrip, found 3 days ago
$793
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Dec 26 from Gulfport to Watertown, returning Tue, Dec 30, priced at $793 found 3 days ago

Frequently asked questions

How much does a flight from Gulfport - Biloxi Intl. Airport (GPT) to Watertown Regional Airport (ATY) cost?
Lock in a cheap one-way flight from $447 or cheap return flight from $568 from Gulfport - Biloxi Intl. Airport (GPT) to Watertown Regional Airport (ATY) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Gulfport - Biloxi Intl. Airport (GPT) to Watertown Regional Airport (ATY)?
Traveling in December is a great way to save, as it's the cheapest month for flights between GPT and ATY. You'll typically find the lowest prices during off-peak months.
What is the cheapest airline that flies from Gulfport - Biloxi Intl. Airport (GPT) to Watertown Regional Airport (ATY)?
To find the cheapest airline that'll fly you from GPT to ATY, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Gulfport - Biloxi Intl. Airport (GPT) to Watertown Regional Airport (ATY)?
You'll have to book a flight with a layover if you're traveling from Gulfport - Biloxi Intl. Airport (GPT) to Watertown Regional Airport (ATY). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from GPT to ATY?
Typically you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* But this can change depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Gulfport - Biloxi Intl. Airport (GPT) to Watertown Regional Airport (ATY)?
Opt for a flight from Gulfport - Biloxi Intl. Airport (GPT) to Watertown Regional Airport (ATY) that leaves before 3 PM to reduce the likelihood of delays. Departures later than this 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 Gulfport - Biloxi Intl. Airport (GPT) to Watertown Regional Airport (ATY) last-minute?
Last-minute bookings from GPT to ATY are typically more expensive. To lock in the cheapest rates, start searching for flights as soon as possible. That said, if you're flexible with your travel dates, you may find a cheap ticket right before your journey.
Is it cheaper to book a GPT to ATY flight and hotel package?
You'll typically save money by securing a GPT to ATY flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. Once you've chosen your preferred accommodations and flights, consider adding extras including car rentals, activities and tours.
Can I cancel or change the date of my flight from Gulfport - Biloxi Intl. Airport (GPT) to Watertown Regional Airport (ATY)?
In most instances, you can reschedule or cancel your GPT to ATY flight. However, additional fees may apply, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's rules and fees on flight changes, or if you want further details, go to our Customer Service portal.

Travel information

Origin airport
Gulfport - Biloxi Intl.
Destination airport
Watertown Regional
Roundtrip price
$568
Distance
1094 mi

Book with confidence

Gulfport to Watertown Flights

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

 

The best time to book a flight from Gulfport to Watertown

Sunday is one of the best days to book for cheap flights from Gulfport 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 Gulfport 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 Gulfport to Watertown in 2026. You can also book with separate airlines for your outbound and return journeys, from $447 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 Gulfport 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 Gulfport 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.

 

Gulfport to Watertown Flights

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*Available to One Key members.