The cheapest times to fly from BOI to DEN are
- January 1st to March 4th (except the week of February 12th)
- April 23rd to May 6th
- August 6th to November 18th
based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from BOI to DEN is mid to late September. Prices can be as high as $539 for Sunday flights during mid March, or as low as $163 for Wednesday flights around mid to late September.
When to Fly to Denver
Flying from Boise, ID (BOI) to Denver, CO (DEN) will usually cost between $193 to $341 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid to late September with an average ticket price of $217. Due to high demand the most expensive time to fly is mid March, with an average price of $324. Planning your trip to low-cost times can easily save you $107 on economy flights and even more on first-class flights. Generally, any price below $240 can be considered a good price for a round-trip BOI to DEN flight.
See below for a graph of average weekly prices for the BOI to DEN route. All prices are for round-trip tickets in USD.
Compared to other flights, the BOI to DEN flight is much cheaper than the average and costs much less than the average flight leaving from Boise. The average price per mile (for a direct flight) is $0.23, which is below average.
Flight Prices by Day of the Week
Wednesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $57 (20%) on this flight.
Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Wednesday and returning a week later will cost an average of $222. Return trip prices are from the DEN to BOI flight, and often highlight the quality of our data in showing the same trend.
Departing Prices by Day
Return Trip Prices by Day
Nonstop Flights and Layovers
Travelers looking to fly from BOI to DEN can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 2 hour 9 minutes may be realistic.
Flight Questions Answered
Still have questions about flying from BOI to DEN? We’ve got answers.
Which airlines fly this route?
You can find 7 major airlines flying this route most often: Alaska, American, Delta, Emirates, Frontier, Southwest, United, and potentially more during busy seasons.
How far away is it from Denver International Airport to Boise Air Terminal Airport?
The distance between the two airports is roughly 647 miles or 1041 kilometers.
How long does it take to fly from BOI to DEN?
The real-world flight time for a nonstop BOI to DEN flight is about 2 hour 9 minutes.
How many flights go between Boise, ID and Denver, CO?
It depends on the day of the week and the date, but a typical day might have around 59 available flights from BOI to DEN.
Airport Location Info
|Origination airport name||Boise Air Terminal Airport|
|Country||the United States|
|Destination airport name||Denver International Airport|
|Country||the United States|
Late and Early Flight Data
Flights from BOI to DEN tend to depart late far less frequently than the average flight. According to our recently updated data, 20% of flights departed 5 or more minutes late, and 44% of flights left 5 or more minutes early. On average you can expect to leave DEN heading for BOI about 5 minutes late. This does significantly impact arrival time, as the average landing time in Denver, CO is about 8 minutes late. The numbers below show a recent average of take-off times versus the scheduled departure flight:
- Southwest: 11 minutes late
- SkyWest: 6 minutes late
- United: 4 minutes early
- Frontier: 20 minutes late
- Some airlines not reporting
Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.