Cheap Flights to Grant County from $390 (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.

Thu, Nov 12 - Wed, Nov 18
BOI
Boise
ATY
Watertown Regional
$395 Roundtrip, found 1 day ago
$395
Roundtrip
found 1 day ago
Select United flight, departing Thu, Nov 12 from Boise to Watertown Regional, returning Wed, Nov 18, priced at $395 found 1 day ago
Wed, Nov 11 - Tue, Nov 17
BOI
Boise
ATY
Watertown Regional
$433 Roundtrip, found 4 days ago
$433
Roundtrip
found 4 days ago
Select United flight, departing Wed, Nov 11 from Boise to Watertown Regional, returning Tue, Nov 17, priced at $433 found 4 days ago
Wed, Nov 11 - Tue, Nov 17
BOI
Boise
ATY
Watertown Regional
$480 Roundtrip, found 4 days ago
$480
Roundtrip
found 4 days ago
Select United flight, departing Wed, Nov 11 from Boise to Watertown Regional, returning Tue, Nov 17, priced at $480 found 4 days ago
Thu, Nov 12 - Wed, Nov 18
BOI
Boise
ATY
Watertown Regional
$496 Roundtrip, found 1 day ago
$496
Roundtrip
found 1 day ago
Select United flight, departing Thu, Nov 12 from Boise to Watertown Regional, returning Wed, Nov 18, priced at $496 found 1 day ago
Wed, Nov 11 - Tue, Nov 17
BOI
Boise
ATY
Watertown Regional
$535 Roundtrip, found 4 days ago
$535
Roundtrip
found 4 days ago
Select United flight, departing Wed, Nov 11 from Boise to Watertown Regional, returning Tue, Nov 17, priced at $535 found 4 days ago
Wed, Oct 28 - Sun, Nov 1
SAT
San Antonio Intl.
ATY
Watertown Regional
$564 Roundtrip, found 1 day ago
$564
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 28 from San Antonio Intl. to Watertown Regional, returning Sun, Nov 1, priced at $564 found 1 day ago
Wed, Oct 28 - Sun, Nov 1
SAT
San Antonio Intl.
ATY
Watertown Regional
$571 Roundtrip, found 1 day ago
$571
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 28 from San Antonio Intl. to Watertown Regional, returning Sun, Nov 1, priced at $571 found 1 day ago
Wed, Oct 28 - Sun, Nov 1
SAT
San Antonio Intl.
ATY
Watertown Regional
$574 Roundtrip, found 1 day ago
$574
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 28 from San Antonio Intl. to Watertown Regional, returning Sun, Nov 1, priced at $574 found 1 day ago
OriginDestinationTravel DatesFlights From*
PHXWatertownJanuary 14 to January 18$354
*Prices include taxes and fees

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.
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! (99 reviews)
"Great room, helpful staff and an all-around great stay. Wish we could have extended our stay — and hope to be back someday soon."

Reviewed on Oct 12, 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! (241 reviews)
"Barely spoke in English didn’t really have a clue what I was saying I forgot a couple items in my room and when I called to see if they can ship it, they said they couldn’t ship anything never been to a hotel that couldn’t ship your items for you they keep telling me to call back and every time I ..."

Reviewed on Oct 9, 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! (20 reviews)
"It was very clean and the host's were accommodating."

Reviewed on Sep 20, 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 $354 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?
November 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. $354 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 $354 and $574 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.