Cheap Flights to Grant County from $288 (2026/2027)

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A calm lake with clear reflections, surrounded by autumn-colored trees and rocky shores.

Milbank

Flights
Milbank

How Much Does it Cost To Fly To Grant County?

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Fri, Aug 21 - Sun, Aug 23
SAN
San Diego Intl.
ATY
Watertown Regional
$321 Roundtrip, found 1 hour ago
$321
Roundtrip
found 1 hour ago
Select United flight, departing Fri, Aug 21 from San Diego Intl. to Watertown Regional, returning Sun, Aug 23, priced at $321 found 1 hour ago
Tue, Oct 6 - Thu, Oct 15
BOI
Boise
ATY
Watertown Regional
$331 Roundtrip, found 14 hours ago
$331
Roundtrip
found 14 hours ago
Select United flight, departing Tue, Oct 6 from Boise to Watertown Regional, returning Thu, Oct 15, priced at $331 found 14 hours ago
Tue, Oct 6 - Thu, Oct 15
BOI
Boise
ATY
Watertown Regional
$411 Roundtrip, found 14 hours ago
$411
Roundtrip
found 14 hours ago
Select United flight, departing Tue, Oct 6 from Boise to Watertown Regional, returning Thu, Oct 15, priced at $411 found 14 hours ago
Fri, Aug 21 - Sun, Aug 23
SAN
San Diego Intl.
ATY
Watertown Regional
$413 Roundtrip, found 1 hour ago
$413
Roundtrip
found 1 hour ago
Select United flight, departing Fri, Aug 21 from San Diego Intl. to Watertown Regional, returning Sun, Aug 23, priced at $413 found 1 hour ago
Wed, Sep 23 - Thu, Oct 1
BOI
Boise
ATY
Watertown Regional
$441 Roundtrip, found 5 hours ago
$441
Roundtrip
found 5 hours ago
Select United flight, departing Wed, Sep 23 from Boise to Watertown Regional, returning Thu, Oct 1, priced at $441 found 5 hours ago
Fri, Aug 7 - Sun, Aug 9
CMH
John Glenn Columbus Intl.
ATY
Watertown Regional
$452 Roundtrip, found 1 hour ago
$452
Roundtrip
found 1 hour ago
Select Delta flight, departing Fri, Aug 7 from John Glenn Columbus Intl. to Watertown Regional, returning Sun, Aug 9, priced at $452 found 1 hour ago
Wed, Sep 23 - Thu, Oct 1
BOI
Boise
ATY
Watertown Regional
$456 Roundtrip, found 5 hours ago
$456
Roundtrip
found 5 hours ago
Select United flight, departing Wed, Sep 23 from Boise to Watertown Regional, returning Thu, Oct 1, priced at $456 found 5 hours ago
Fri, Aug 21 - Sun, Aug 23
SAN
San Diego Intl.
ATY
Watertown Regional
$472 Roundtrip, found 1 hour ago
$472
Roundtrip
found 1 hour ago
Select United flight, departing Fri, Aug 21 from San Diego Intl. to Watertown Regional, returning Sun, Aug 23, priced at $472 found 1 hour ago
OriginDestinationTravel DatesFlights From*
DENWatertownOctober 15 to October 18$240
ORDWatertownOctober 17 to October 18$399
*Prices include taxes and fees

Best Grant County Flight and Hotel Packages

Price found within the past 48 hours. Click for updated prices.
AmericInn by Wyndham Watertown
3.0-star property

AmericInn by Wyndham Watertown

Aug 14 - Aug 17

3 night stay

New York (NYC) to Watertown (ATY)

American Airlines • Non-stop roundtrip • Coach
Price was $530, price is now $488 per person
$488
per person
found 1 day ago
Grandstay Hotel and Suites Milbank
2.5-star property

Grandstay Hotel and Suites Milbank

Aug 14 - Aug 17

3 night stay

New York (NYC) to Watertown (ATY)

American Airlines • Non-stop roundtrip • Coach
Price was $603, price is now $562 per person
$562
per person
found 1 day ago
Quality Inn & Suites Watertown near Prairie Lakes Ice Arena
2.5-star property

Quality Inn & Suites Watertown near Prairie Lakes Ice Arena

Aug 14 - Aug 17

3 night stay

New York (NYC) to Watertown (ATY)

American Airlines • Non-stop roundtrip • Coach
Price was $513, price is now $491 per person
$491
per person
found 1 day ago
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Travelers ❤️ These Grant County 🏨

Grandstay Hotel and Suites Milbank

Grandstay Hotel and Suites Milbank

2.5 out of 5
1005 S. Dakota Street Milbank SD
Stay at this hotel in Milbank. Enjoy free breakfast, free WiFi, and free parking. Popular attraction Lake Farley Park is located nearby.
9.4/10 Exceptional! (291 reviews)
"I booked online at , what I believed was the website. After a couple days I had still not received any confirmation so was growing concerned. When I called the only number available I reached headquarters, not a local number for the local facility. I explained the situation and my concerns. Reluctantly, ..."

Reviewed on Jul 11, 2026

Opens in a new windowGrandstay Hotel and Suites Milbank
Lantern Motel

Lantern Motel

2 out of 5
1010 S Dakota St Milbank SD
Stay at this motel in Milbank. Enjoy free breakfast, free WiFi, and free parking. Popular attraction Lake Farley Park is located nearby.
8.8/10 Excellent! (78 reviews)
"Older building but clean and freshly painted inside. Firm mattress and good pillows."

Reviewed on Jul 10, 2026

Opens in a new windowLantern Motel
Super 8 by Wyndham Milbank SD

Super 8 by Wyndham Milbank SD

2 out of 5
1205 E Highway 12 Milbank SD
Book a stay at this business-friendly motel in Milbank. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff in our reviews. Popular attraction Lake Farley Park is located nearby.
7.6/10 Good! (231 reviews)
"We tried to check in. Repeated use of the "intercom" eventually brought a kid to the desk. And he promptly disappeared without a word. He finally came back and said the manager was at "Lewis." I told him I didn't know what that meant. When would he be back? He didn't know. The manager finally showed ..."

Reviewed on Jul 3, 2026

Opens in a new windowSuper 8 by Wyndham Milbank SD
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1BR cabin on Big Stone Lake

1BR cabin on Big Stone Lake

Big Stone City SD
Stay at this cabin in Big Stone City. Enjoy air conditioning. Popular attractions Lakeside Park and Cliffs Park are located nearby.
10/10 Exceptional! (17 reviews)
"This was a great space for a weekend away! Across the road from the lake and close to several eating options. We had to call for directions and instructions, but it was easy to find and get into. The space was very clean and met all of our needs."

Reviewed on Jun 21, 2026

Opens in a new window 1BR cabin on Big Stone Lake
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

Frequently asked questions

How much is the cheapest flight to Grant County?
In the last seven days, the cheapest roundtrip flight to Grant County cost $240 on our site. Check out our fabulous deals, book your tickets and start planning your next exciting getaway. This price was available on Travelocity for flights to Grant County departing within the next year. Prices and availability are subject to change. Additional terms apply.
Which airlines fly to Grant County?
Lock in a seat with one of the 15 airlines that jet to Grant County. If your first stop is Milbank, let United Airlines whisk you away to this dynamic city to explore its highlights. This reputable carrier offers 52 flights there each month.
What is the cheapest month to fly to Grant County?
August is the cheapest period to jet to Grant County based on Travelocity's direct return flight demand between January and December last year. We'll help you lock in an amazing deal so you can start organizing your vacation today.
How can I check my flight status to Grant County?
Make the most of the Travelocity portal, Trips. You'll find just about everything related to your flight to Grant County here, including alerts about gate changes, flight status and more. Keep an eye out for Trips at the top of the Travelocity homepage. Just create your free acount and get the answers you need. Alternatively, you can look up your itinerary while you're on the move and get trip updates through the Travelocity app. All your itineraries are in one place, so you can quickly share details with any members of your family flying with you.
How do I find the best deals on flights to Grant County?
There are a few ways — book early, avoid peak season and be flexible with your dates. If your dates aren't set in stone, search for your flight to Grant County on Travelocity and hit "Flexible dates" above your results. This will reveal any cheaper tickets on a nearby day. $240 was the best price for a roundtrip flight to Grant County in the last seven days. This price was available on Travelocity for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Why should I book my flight to Grant County with Travelocity?
From cheap family flights to all-inclusive resorts and activities, Travelocity has got you covered for incredible adventures. With everything at your fingertips, you can relax while daydreaming about all the cool things that await you in Grant County and less time on travel planning. Plus with our Price Match Guarantee and 24/7 customer support, we do our best to make your next getaway a fabulous one.
How much is a flight to Grant County on average?
Travelers were picking up roundtrip flights to Grant County for between $240 and $472 with Travelocity in the last seven days. Whether you're looking to fly budget or business class, we'll help you get your hands on an amazing deal. These prices were available on Travelocity for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What can I expect on a flight to Grant County?
If you're about to hop on a long-haul flight to Grant County, you can usually expect drinks, food and entertainment on board. Airlines attempt to make longer flights as pleasant as possible for passengers. Brief trips — as well as flights offered by low-cost airlines — may not come with as many inclusions. If you're chasing cheap flights for family vacations with a low-cost carrier, you'll possibly pay extra for things like snacks and drinks.