$541 Cheap flights to Grant County

Earn rewards on top of your airline miles with Orbitz Rewards

Many airlines offer flexible change policies

Sign up to receive text alerts about your trip

Top places to visit in Grant County

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

Milbank

Milbank

Cheap flights to Grant County from $541 One Way, $800 Round Trip

$800 return flights and $541 one-way flights to Grant County were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Aug 17 - Fri, Aug 21
TYS
Knoxville
ATY
Watertown
$1,366 Roundtrip, found 1 day ago
$1,366
Roundtrip
found 1 day ago
Select United flight, departing Mon, Aug 17 from Knoxville to Watertown, returning Fri, Aug 21, priced at $1,366 found 1 day ago
Mon, Aug 17 - Fri, Aug 21
TYS
Knoxville
ATY
Watertown
$1,375 Roundtrip, found 1 day ago
$1,375
Roundtrip
found 1 day ago
Select United flight, departing Mon, Aug 17 from Knoxville to Watertown, returning Fri, Aug 21, priced at $1,375 found 1 day ago
Mon, Aug 17 - Fri, Aug 21
TYS
Knoxville
ATY
Watertown
$1,452 Roundtrip, found 1 day ago
$1,452
Roundtrip
found 1 day ago
Select United flight, departing Mon, Aug 17 from Knoxville to Watertown, returning Fri, Aug 21, priced at $1,452 found 1 day ago
Mon, Aug 17 - Fri, Aug 21
TYS
Knoxville
ATY
Watertown
$1,462 Roundtrip, found 1 day ago
$1,462
Roundtrip
found 1 day ago
Select United flight, departing Mon, Aug 17 from Knoxville to Watertown, returning Fri, Aug 21, priced at $1,462 found 1 day ago
Mon, Aug 17 - Fri, Aug 21
TYS
Knoxville
ATY
Watertown
$1,686 Roundtrip, found 1 day ago
$1,686
Roundtrip
found 1 day ago
Select United flight, departing Mon, Aug 17 from Knoxville to Watertown, returning Fri, Aug 21, priced at $1,686 found 1 day ago
Mon, Aug 17 - Fri, Aug 21
TYS
Knoxville
ATY
Watertown
$1,803 Roundtrip, found 1 day ago
$1,803
Roundtrip
found 1 day ago
Select United flight, departing Mon, Aug 17 from Knoxville to Watertown, returning Fri, Aug 21, priced at $1,803 found 1 day ago
Loading

Deals For This Weekend's Flights

OriginDestinationTravel DatesFlights From*
DENWatertownAugust 16 to August 22$800
*Prices include taxes and fees

Find The Perfect Hotel For After Your Flight

Score Epic Grant County Accommodation Deals

Grandstay Hotel and Suites Milbank

Grandstay Hotel and Suites Milbank

2.5 out of 5
1005 S. Dakota Street Milbank SD
Fully refundableReserve now, pay when you stay
$169 nightly
The price is $184 total per night from Aug 16 to Aug 17
$184 total
Aug 16 - Aug 17
Total with taxes and fees
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
Fully refundableReserve now, pay when you stay
$77 nightly
The price is $83 total per night from Sep 7 to Sep 8
$83 total
Sep 7 - Sep 8
Total with taxes and fees
Stay at this motel in Milbank. Enjoy free breakfast, free WiFi, and free parking. Popular attraction Lake Farley Park is located nearby.
Opens in a new windowLantern Motel
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

Get rates
Opens in a new window 1BR cabin on Big Stone Lake
Save an average of 15% on thousands of hotels when you're signed in
Sign in
Sign up, it's free
Super 8 by Wyndham Milbank SD

Super 8 by Wyndham Milbank SD

2 out of 5
1205 E Highway 12 Milbank SD
Fully refundableReserve now, pay when you stay
$65 nightly
The price is $71 total per night from Aug 23 to Aug 24
$71 total
Aug 23 - Aug 24
Total with taxes and fees
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. ...
Opens in a new windowSuper 8 by Wyndham Milbank SD
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.

Need a Car For After Your Flight?

Economy

Chevrolet Spark
  • 4 people
Chevrolet Spark
Economy Chevrolet Spark

Compact

Ford Focus
  • 4 people
Ford Focus
Compact Ford Focus

Midsize

Toyota Corolla
  • 5 people
Toyota Corolla
Midsize Toyota Corolla

SUV

Jeep Compass
  • 5 people
Jeep Compass
SUV Jeep Compass

Grant County

Get the absolute lowest prices on flights to Grant County by shopping with Orbitz. Orbitz is the most efficient travel planner around, allowing you to search, compare and book discount domestic and international flights fast. With cutting-edge mobile tools and access to frequent flier rewards programs, we have everything you need for both your routine and holiday excursions.

Book Your Flight To Grant County Using Your Mobile Device

New mobile app tools enable those with hand-held devices to scout out the best bargains and to secure tickets from any location. If you have an iPhone, iPad or Android device, you may take advantage of special discounts, only available to mobile device customers, when you book hotel rooms or car rentals on the same day as booking Grant County flights.

Avoid Check-In Hassles When Traveling On Flights to Grant County

Orbitz also provides an array of resources that can help you eliminate most check-in hassles. Detailed baggage information is continually available for Grant County flights. Mobile apps can also be used to share travel itineraries with family members or business associates.

Keeping Everyone Up To Date

When you download the free Orbitz mobile phone app, you can get regular and free flight updates. These will keep you informed of important scheduling changes. Updates can even be sent to several contacts, helping to keep everyone current on anticipated arrival times and all other relevant flight details.

Orbitz makes traveling on a budget very easy to do. We provide everything you need to plan your ideal trip from start to finish. Getting there and back again is a snap when you book your Grant County flight using Orbitz.

Frequently asked questions

What is the best airport to fly to in Grant County?
Watertown Regional Airport (ATY) is the major entry point for this unique destination. Once you've left the terminal, the possibilities are endless when it comes to discovering Grant County.
How much is a flight to Grant County?
Return flight prices dropped as low as $800 this week to Grant County, and rose to a high of $1,803. Several lucky passengers journeying out of Knoxville (TYS) managed to snare one-way tickets from just $541.
How to book the cheapest flight to Grant County?
With some of the most exciting flight deals around, you're guaranteed value for money with Orbitz. The following hints and tips will help you score cheap flights to Grant County — and leave you with more money to play with:

  • Departing from or landing at nearby airports can sometimes be cheaper. Type in your preferred departure and arrival points. Next, click on the 'Nearby airports' function below to explore your options.
  • Also, click on the 'Show flexible dates' link to view the prices on days either side of your chosen departure. It's possible to score cheaper flight deals if your dates are flexible.
  • You can also select the 'Show options' function to filter results for your preferred carrier, seating class, nonstop flights and refundable flights. Under 'Sort & Filter' to the left, you can even choose the time of day you'd like to fly.
  • The early bird catches the best savings, so book your tickets the moment you know your travel dates. The cheapest fares sell out first and prices normally rise as the departure date gets closer.
  • Save big on your vacation by bundling your hotel, flights and car rentals into one handy package. Your budget will thank you.
  • Don't fly during peak seasons if possible. By steering clear of school vacations and summer, you can save big on your airfare.

What is the best time to book a flight to Grant County?
If your schedule allows, purchase your tickets to Grant County in January. This is the best month to reserve low airfares, closely followed by February and August. With a bit of patience and planning, you're bound to find a cheap flight with Orbitz.
What day of the week is the cheapest to book a flight to Grant County?
Make a booking on a Tuesday, Wednesday or Saturday. Typically, these are the cheapest days to purchase tickets to Grant County. The getaway of your dreams starts with a terrific flight deal!
What is the cheapest day of the week to fly to Grant County?
You can score cheap flights to Grant County by flying out on a Monday, according to Orbitz data from 2020. Tuesday is also more affordable, while Saturday has the most costly airfares. Whether you prefer to save cash or fly whenever is convenient, you'll always get a rewarding deal with Orbitz.
What is the cheapest month to fly to Grant County?
Consider flying during August if you don't want to put a dent in your budget. Orbitz data shows that this is generally the best month for cheap flights to Grant County. June is when prices hit their peak.
Which airlines allow free cancellation?
Orbitz makes it easy to find airlines that offer flexibility. Simply choose "Filter by flexible change policies" when searching for your Grant County flights and ta-da! We'll show you options that include free cancellation within 24 hours of booking, no change fees and of course, an amazing low price.
What do I need for the flight to Grant County?
The secret to a comfortable and successful flight is preparation. Listed below are some tips to help you get ready for your adventure:

  • Your travel documents are the most important things you'll need to take with you on your flight. To avoid any dramas when checking in, make sure that the personal information on your ticket is the same as on your government-issued photo ID.
  • Make time fly by even faster on your short flight by packing the right stuff. Think yummy snacks, bottled water and entertainment. If you'd like your trip to Grant County to go quietly, throw some headphones into your bag too.
  • It can get cold on the plane. If you don't want to shiver your way through the flight, layer up.

How do I get cheap first-class/business deals to Grant County?
Smart travelers have honed the art of finding business or first-class flights to Grant County without the eye-watering price tag. Follow in their footsteps with these handy hints:

  • Flexibility is key. By being open to other travel dates, you'll have more chances of picking up a rewarding deal on first or business-class airfares.
  • Look for a low-cost airline that has seats in business class. They usually come with more space and a glass of Champagne — but at a more affordable price.
  • Bid for an upgrade. Some carriers hold online auctions that let you put down a price for a seat up the front. You may also be able to upgrade with points earned through a flight loyalty program.

What is the best time to go to Grant County?
There's loads of fun to be had whatever time of the year you decide to visit Grant County, but May, August and October are the most popular months. Like to fill your itinerary with stacks of warm-weather activities? Plan your trip close to June 20. This is when the summer season starts in the Northern Hemisphere. Expect the mercury to float between 60 ºF and 80 ºF during this time.

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.