Cheap flights from Kalispell to Denver from $111

The cheapest month to fly to Denver from Kalispell is in September. Flight prices, which tend to average around $279, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in September, then you should wait until October to fly from Kalispell, when ticket prices are also cheap, with an average price of $289.

The cheapest day to depart on your flight to Denver is on a Thursday when prices can be found for as low as $450. 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 Monday, with ticket prices averaging around $642.

The cheapest time of day to fly to Denver is in the afternoon when flights can be purchased for as low as $429. Flights in the morning are often more expensive with an average ticket price of $540.

Fly from Kalispell Glacier Park to Denver Intl for the best Kalispell Glacier Park - Denver Intl flight prices

You are more likely to see cheaper flights to Denver from Kalispell when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $346 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Kalispell for as low as $250 on momondo.

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

No. A direct flight is the cheapest option for a flight between Kalispell to Denver.

As of August 2026, prices for Kalispell to Denver flights are approximately 5% cheaper when compared to flights at the same time last year.

United Airlines and Delta are the most popular carriers operating from Kalispell Glacier Park to Denver Intl

United Airlines, Delta and Alaska Airlines are the top three most popular airlines that fly to Denver from Kalispell according to our data. United Airlines is the first choice among our users, with 94% of people opting to fly with this airline when traveling to Denver. Keep in mind that there are 4 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.

The number of flights available between Kalispell and Denver is 1 per day as of August 2026. The most frequent departure time is 10:00AM, with 50% of daily flights leaving at noon.

As of August 2026, there are 13 flights per week flying from Kalispell to Denver. The most common day of the week flights depart is Fri, with 23% of flights taking off on this day.