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South Dakota

$69+ Cheap flights from Denver (DEN) to South Dakota

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — FSD
Sep 1 — Sep 81
Tue 9/1
Tue 9/8
1 adult, Economy
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Cheap flight deals from Denver to South Dakota

Cheapest flights from Denver to South Dakota
Explore the most affordable flight options available from Denver to South Dakota. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 2, 2026.

This Frontier deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/25:28 pm
DEN
-
FSD
Nonstop1h 39m
Frontier
Fri 10/97:31 pm
FSD
-
DEN
Nonstop1h 48m
Frontier
Deal found 7/28$138
This Frontier deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/185:28 pm
DEN
-
FSD
Nonstop1h 39m
Frontier
Mon 9/218:52 pm
FSD
-
DEN
Nonstop1h 46m
Frontier
Deal found 8/1$144
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/215:28 pm
DEN
-
FSD
Nonstop1h 39m
Frontier
Fri 9/258:52 pm
FSD
-
DEN
Nonstop1h 46m
Frontier
Deal found 7/29$145
This Frontier deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/214:02 pm
DEN
-
FSD
Nonstop1h 34m
Frontier
Mon 11/28:48 pm
FSD
-
DEN
Nonstop1h 49m
Frontier
Deal found 7/29$150
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/115:28 pm
DEN
-
FSD
Nonstop1h 39m
Frontier
Fri 9/188:52 pm
FSD
-
DEN
Nonstop1h 46m
Frontier
Deal found 7/29$152
This Frontier deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/145:28 pm
DEN
-
FSD
Nonstop1h 39m
Frontier
Fri 9/188:52 pm
FSD
-
DEN
Nonstop1h 46m
Frontier
Deal found 7/29$153
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/115:28 pm
DEN
-
FSD
Nonstop1h 39m
Frontier
Mon 9/148:52 pm
FSD
-
DEN
Nonstop1h 46m
Frontier
Deal found 7/29$158
This Frontier deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/144:42 pm
DEN
-
FSD
Nonstop1h 41m
Frontier
Mon 8/178:08 pm
FSD
-
DEN
Nonstop1h 53m
Frontier
Deal found 7/27$165
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:10 am
DEN
-
RAP
1 stop9h 45m
Multiple Airlines
Sun 8/233:30 pm
RAP
-
DEN
1 stop19h 49m
Multiple Airlines
Deal found 7/30$205
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/132:10 pm
DEN
-
ATY
Nonstop1h 49m
United Airlines
Mon 8/176:39 pm
ATY
-
DEN
Nonstop2h 02m
United Airlines
Deal found 7/28$240
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/84:20 pm
DEN
-
PIR
Nonstop1h 28m
United Airlines
Sun 9/133:17 pm
PIR
-
DEN
Nonstop1h 33m
United Airlines
Deal found 7/29$240
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3010:48 pm
DEN
-
RAP
1 stop20h 44m
Multiple Airlines
Sun 9/63:34 pm
RAP
-
DEN
2 stops18h 00m
Multiple Airlines
Deal found 7/31$255

Find flight deals from Denver to South Dakota

Keep the following information in mind while searching for Denver to South Dakota flight deals. Data was last updated August 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$138
(Frontier)

One-way from

$69
(Frontier)

Popular in

April

Cheapest in

October

Average price

$254

Good round-trip deal

$240 or less

Good one-way deal

$84 or less
Provider with most accurate pricing for Denver Intl-Sioux Falls Joe Foss Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Sioux Falls Joe Foss Field flights.
Search Deals
From Denver Intl to South Dakota
Search Deals
One-way flight from Denver Intl to South Dakota
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($36 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from Denver Intl to South Dakota.
Search Deals
Price to beat on a one-way flight from Denver Intl to South Dakota.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to South Dakota that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 2, 2026.
Use the filters below to find and compare flights from Denver to South Dakota that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverWatertown

DEN - ATY

DENATY

Denver Intl

Fri 9/18

2:10 pm-4:59 pm

Nonstop1h 49m

Watertown

Mon 9/21

6:20 pm-7:22 pm

Nonstop2h 02m

$240

DenverWatertown

DEN - ATY

DENATY

Denver Intl

Fri 8/14

2:10 pm-4:59 pm

Nonstop1h 49m

Watertown

Tue 8/18

6:39 pm-7:41 pm

Nonstop2h 02m

$240

DenverWatertown

DEN - ATY

DENATY

Denver Intl

Fri 10/16

2:10 pm-4:59 pm

Nonstop1h 49m

Watertown

Thu 10/22

11:40 am-12:42 pm

Nonstop2h 02m

$240

DenverWatertown

DEN - ATY

DENATY

Denver Intl

Thu 9/24

8:15 am-11:05 am

Nonstop1h 50m

Watertown

Sun 9/27

11:40 am-12:42 pm

Nonstop2h 02m

$240

DenverWatertown

DEN - ATY

DENATY

Denver Intl

Fri 9/11

2:10 pm-4:59 pm

Nonstop1h 49m

Watertown

Fri 9/18

6:20 pm-7:22 pm

Nonstop2h 02m

$240

DenverWatertown

DEN - ATY

DENATY

Denver Intl

Fri 9/18

2:10 pm-4:59 pm

Nonstop1h 49m

Watertown

Sat 9/19

6:20 pm-7:22 pm

Nonstop2h 02m

$240

DenverWatertown

DEN - ATY

DENATY

Denver Intl

Thu 9/24

2:10 pm-4:59 pm

Nonstop1h 49m

Watertown

Sat 9/26

6:25 pm-7:27 pm

Nonstop2h 02m

$240

DenverWatertown

DEN - ATY

DENATY

Denver Intl

Thu 8/13

2:10 pm-4:59 pm

Nonstop1h 49m

Watertown

Sun 8/16

6:39 pm-7:41 pm

Nonstop2h 02m

$240

DenverPierre

DEN - PIR

DENPIR

Denver Intl

Thu 8/13

9:00 pm-11:25 pm

Nonstop1h 25m

Pierre

Tue 8/18

6:26 am-7:00 am

Nonstop1h 34m

$240

DenverPierre

DEN - PIR

DENPIR

Denver Intl

Fri 9/25

9:05 pm-11:30 pm

Nonstop1h 25m

Pierre

Sun 9/27

5:20 pm-5:54 pm

Nonstop1h 34m

$240

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Denver to South Dakota

Have a flexible travel schedule? Discover the best time to fly to South Dakota from Denver with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Denver to South Dakota

What is the cheapest month to book a flight from Denver to South Dakota?

Currently, September is the cheapest month in which you can book a flight from Denver to South Dakota (average of $208). Flying from Denver to South Dakota in April is currently the most expensive (average of $359). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DEN to SD?

Find hourly flight availability from Denver to South Dakota. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 2, 2026.

One of the essential ways to save on airfare from Denver to South Dakota is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 18% on airfare.

Weekly flight availability from Denver to South Dakota

Explore weekly flight availability from Denver to South Dakota. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 2, 2026.

The most flights from DEN to USSD are scheduled on a Monday (11 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (4 on average).

How much does it cost to fly round-trip from Denver to South Dakota?

Airfare is below average for this route at the moment.
Denver to South Dakota flights typically cost between $165 and $339 in October.
The cheapest round-trip price found within the last 5 days was $138 on Frontier (Oct 2-Oct 9).

How far ahead should I book a flight from Denver to South Dakota?

Booking 44 days in advance of your planned departure date is, on average, the best time to get cheap flights from Denver to South Dakota. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest day to fly from Denver to South Dakota?

Use this chart to determine the cheapest time to fly round-trip from Denver to South Dakota. Price data was last updated on August 1, 2026.

Travelers seeking maximum savings on their Denver to South Dakota flight should consider departing on Wednesday mornings when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing South Dakota

Get insights into the airlines that provide service to South Dakota. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to South Dakota. Reviews last updated August 2, 2026.
See what other customers who have flown with United Airlines and Frontier from Denver to South Dakota have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,062 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
10,062 reviews
United Airlines
7.4
Good
10,062 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
Frontier
5.6
Fair
2,741 reviews
United Airlines
7.4
Good
10,062 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

Related info for your journey

Find useful and relevant information for your journey from Denver to South Dakota. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Denver to South Dakota?

    Denver Intl (DEN) is the airport you will fly out of if you book a flight from Denver to South Dakota. It is only a 18.5 mi journey to Denver Intl (DEN) from Denver’s city center.

  • How popular is this Denver to South Dakota flight route?

    Within the past month, 2 users have taken a look at flights from Denver Intl to South Dakota.

  • How long is the flight from Denver to South Dakota?

    For as low as $240, United Airlines can have you in South Dakota from Denver in 1h 49m. Airlines will cover a distance of 518 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Denver to South Dakota?

    When deciding which route to take from Denver to South Dakota consider Denver Intl - Sioux Falls Joe Foss Field, Denver Intl - Rapid City or Denver Intl - Watertown as they are the most popular.

  • What are the most reliable airlines from Denver to South Dakota?

    The top 3 most reliable airlines when flying from Denver to South Dakota are Frontier (92%), Volaris (92%) and United Airlines (83%).

  • What are the cheapest flights from Denver to South Dakota?

    Looking at all options, your cheapest flight can be booked for $70. While the most popular route (Denver Intl - Sioux Falls Joe Foss Field) can be booked for $182 on average, our data indicates $326 when flying from Denver to South Dakota.

  • Can I find deals for flights from Denver to South Dakota that include hotel bookings?

    Yes. In addition to deals on Denver to South Dakota flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to South Dakota?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to South Dakota.

  • Can I find deals for business class flights from Denver to South Dakota?

    Yes. Cheapflights offers flight deals from Denver to South Dakota by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Denver to South Dakota?

    Currently, September is the cheapest month in which you can book a flight from Denver to South Dakota (average of $208). Flying from Denver to South Dakota in April is currently the most expensive (average of $359). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Denver to South Dakota

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Denver to South Dakota

Discover the top 2 airlines that operate flights from Denver to South Dakota. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$78Average$152FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$189Average$300FlexibilityNo cancel feeOn-time69%

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