Cheap flights from Boise to Denver from $66

The cheapest month to fly to Denver from Boise is in February. Flight prices, which tend to average around $212, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in February, then you should wait until January to fly from Boise, when ticket prices are also cheap, with an average price of $252.

The cheapest day to depart on your flight to Denver is on a Thursday when prices can be found for as low as $418. 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 $567.

The cheapest time of day to fly to Denver is at noon when flights can be purchased for as low as $413. Flights in the morning are often more expensive with an average ticket price of $504.

Fly from Boise Air Term. Gowen Fld to Denver Intl for the best Boise Air Term. Gowen Fld - Denver Intl flight prices

You are more likely to see cheaper flights to Denver from Boise when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $296 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Boise for as low as $235 on momondo.

There are 4 cabin classes available to choose from on Boise 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 Boise to Denver.

As of October 2026, prices for Boise to Denver flights are approximately 28% cheaper when compared to flights at the same time last year.

Southwest, Alaska Airlines, and Frontier are the most popular carriers operating from Boise Air Term. Gowen Fld to Denver Intl

United Airlines, Frontier and Southwest are the top three most popular airlines that fly to Denver from Boise according to our data. United Airlines is the first choice among our users, with 58% 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 Boise and Denver is 7 per day as of October 2026. The most frequent departure time is 10:00AM, with 50% of daily flights leaving at noon.

As of October 2026, 50 flights take off from Boise and land in Denver each week. The most common flight departure day for this route is Thu, with 32% of weekly flights taking off on this day.