$439 Cheap Flights from Birmingham (BHM) to Watertown (ATY)

View $439 flight on Mon, Dec 1, 2025Opens in a new window

Popular airlines from Birmingham International Airport (BHM) to Watertown, SD (ATY-Watertown Regional)

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Cheap Flights from Birmingham to Watertown (BHM-ATY)

Prices were available within the past 7 days and start at $439 for one-way flights and $558 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Sep 30 - Fri, Oct 17
BHM
Birmingham
ATY
Watertown
$558 Roundtrip, found 4 days ago
$558
Roundtrip
found 4 days ago
Select United flight, departing Tue, Sep 30 from Birmingham to Watertown, returning Fri, Oct 17, priced at $558 found 4 days ago
United
Tue, Sep 30 - Tue, Oct 14
BHM
Birmingham
ATY
Watertown
$593 Roundtrip, found 4 days ago
$593
Roundtrip
found 4 days ago
Select United flight, departing Tue, Sep 30 from Birmingham to Watertown, returning Tue, Oct 14, priced at $593 found 4 days ago
Delta
Tue, Sep 30 - Sat, Oct 11
BHM
Birmingham
ATY
Watertown
$615 Roundtrip, found 4 days ago
$615
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Sep 30 from Birmingham to Watertown, returning Sat, Oct 11, priced at $615 found 4 days ago
United
Tue, Sep 30 - Fri, Oct 10
BHM
Birmingham
ATY
Watertown
$620 Roundtrip, found 4 days ago
$620
Roundtrip
found 4 days ago
Select United flight, departing Tue, Sep 30 from Birmingham to Watertown, returning Fri, Oct 10, priced at $620 found 4 days ago
United
Tue, Sep 30 - Mon, Oct 13
BHM
Birmingham
ATY
Watertown
$633 Roundtrip, found 4 days ago
$633
Roundtrip
found 4 days ago
Select United flight, departing Tue, Sep 30 from Birmingham to Watertown, returning Mon, Oct 13, priced at $633 found 4 days ago
United
Tue, Sep 30 - Mon, Oct 6
BHM
Birmingham
ATY
Watertown
$658 Roundtrip, found 4 days ago
$658
Roundtrip
found 4 days ago
Select United flight, departing Tue, Sep 30 from Birmingham to Watertown, returning Mon, Oct 6, priced at $658 found 4 days ago
United
Tue, Sep 30 - Wed, Oct 15
BHM
Birmingham
ATY
Watertown
$677 Roundtrip, found 4 days ago
$677
Roundtrip
found 4 days ago
Select United flight, departing Tue, Sep 30 from Birmingham to Watertown, returning Wed, Oct 15, priced at $677 found 4 days ago
United
Tue, Sep 30 - Sun, Oct 12
BHM
Birmingham
ATY
Watertown
$688 Roundtrip, found 4 days ago
$688
Roundtrip
found 4 days ago
Select United flight, departing Tue, Sep 30 from Birmingham to Watertown, returning Sun, Oct 12, priced at $688 found 4 days ago

Frequently asked questions

How much does a flight from Birmingham Intl. Airport (BHM) to Watertown Regional Airport (ATY) cost?
Secure a cheap one-way flight from $439 or cheap return flight from $558 from Birmingham Intl. Airport (BHM) 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 Birmingham Intl. Airport (BHM) to Watertown Regional Airport (ATY)?
September is the most affordable month to fly from BHM to ATY. Traveling during quieter months is often the key to better flight prices.
What is the cheapest airline that flies from Birmingham Intl. Airport (BHM) to Watertown Regional Airport (ATY)?
To find the cheapest airline flying from BHM to ATY, use Expedia's filter tool. Tailor 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 see the cheapest flights first.
How many flights per day from Birmingham Intl. Airport (BHM) to Watertown Regional Airport (ATY)?
You'll need to hop on a flight with a layover when traveling from Birmingham Intl. Airport (BHM) to Watertown Regional Airport (ATY). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from BHM 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 Birmingham Intl. Airport (BHM) to Watertown Regional Airport (ATY)?
Book a flight from Birmingham Intl. Airport (BHM) to Watertown Regional Airport (ATY) that leaves before 3 PM to reduce the risk of cancellations. 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 Birmingham Intl. Airport (BHM) to Watertown Regional Airport (ATY) last-minute?
Last-minute fares from BHM to ATY are usually more expensive. To secure the lowest prices, start looking for flights well ahead of time. That said, if you're flexible with your travel dates, you may land a cheap ticket right before your trip.
Is it cheaper to book a BHM to ATY flight and hotel package?
You'll typically save money by booking a BHM 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 simple to manage it all in one place. After selecting your preferred flights and accommodations, consider adding extras such as car rentals, tours and activities.
Can I cancel or change the date of my flight from Birmingham Intl. Airport (BHM) to Watertown Regional Airport (ATY)?
Typically, you're able to cancel or reschedule your BHM to ATY flight. However, there may be additional fees, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you'd like more details, go to our Customer Service portal.

Travel information

Travel information

Origin airport
Birmingham Intl.
Destination airport
Watertown Regional
Roundtrip price
$557
Distance
960 mi

Book with confidence

Book with confidence

Birmingham to Watertown Flights

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

 

The best time to book a flight from Birmingham to Watertown

Sunday is one of the best days to book for cheap flights from Birmingham 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 Birmingham 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 Birmingham to Watertown in 2025. You can also book with separate airlines for your outbound and return journeys, from $439 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 Birmingham 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 Birmingham 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.

 

Birmingham to Watertown Flights

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*Available to One Key members.