Cheap flights from Indianapolis to Denver from $135

The cheapest month to fly to Denver from Indianapolis is in August. Flight prices, which tend to average around $234, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in August, then you should wait until October to fly from Indianapolis, when ticket prices are also cheap, with an average price of $248.

The cheapest day to depart on your flight to Denver is on a Thursday when prices can be found for as low as $333. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $397.

The cheapest time of day to fly to Denver is in the evening when flights can be purchased for as low as $276. Flights in the morning are often more expensive with an average ticket price of $440.

Fly from Indianapolis to Denver Intl for the best Indianapolis - Denver Intl flight prices

You are more likely to see cheaper flights to Denver from Indianapolis when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $292 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Indianapolis for as low as $218 on momondo.

There are 4 cabin classes available to choose from on Indianapolis to Denver flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Delta and Southwest are the most popular carriers operating from Indianapolis to Denver Intl

Frontier, United Airlines and Southwest are the top three most popular airlines that fly to Denver from Indianapolis according to our data. Frontier is the first choice among our users, with 53% of people opting to fly with this airline when traveling to Denver. Keep in mind that there are 6 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.

As of July 2026, 8 flights take off from Indianapolis and land in Denver each day. The most common flight departure time for this route is 8:00AM, with 59% of daily flights taking off at noon.

As of July 2026, 56 flights take off from Indianapolis and land in Denver each week. The most common flight departure day for this route is Fri, with 18% of weekly flights taking off on this day.