Cheap flights from Denver to South Dakota from $79

The month of July is, on average, the cheapest month to fly to South Dakota from Denver, with most prices found around $159. If you aren’t able to travel to South Dakota during the month of July, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $181.

The cheapest day to depart from Denver to South Dakota is on a Monday. Travelers who choose to depart for South Dakota on a Monday will often find tickets for as low as $170. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around $304. These prices are subject to change though, so be sure to set up a Price Alert for flights to South Dakota.

The cheapest time of day to fly to South Dakota is in the morning when flights can be purchased for as low as $168. At noon is when there is more demand to fly to South Dakota, so prices are often more expensive at around $323 per ticket.

Fly from Denver Intl to Watertown for the best Denver Intl - South Dakota flight prices

You are more likely to see cheaper flights to South Dakota from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to South Dakota for around $238 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to South Dakota from Denver for as low as $161 on momondo.

There are 3 cabin classes available to choose from on Denver Intl to South Dakota flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Delta and United Airlines are the most popular carriers operating from Denver Intl to South Dakota

United Airlines, Frontier and Denver Air Connection are the top three most popular airlines that fly to South Dakota from Denver according to our data. United Airlines is the first choice among our users, with 62% of people opting to fly with this airline when traveling to South Dakota. Keep in mind that there are 3 different airlines that fly to South Dakota on a routine basis, so you have a few additional options to choose from.

The number of flights available between Denver and South Dakota is 16 per day as of April 2026. The most frequent departure time is 5:00PM, with 49% of daily flights leaving in the afternoon.

As of April 2026, there are 113 flights per week flying from Denver to South Dakota. The most common day of the week flights depart is Mon, with 18% of flights taking off on this day.