The cheapest times to fly from DEN to BOI are
- January 1st to March 4th (except the week of February 5th)
- 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 DEN to BOI is mid to late September. Prices can be as high as $551 for Sunday flights during late March, or as low as $163 for Wednesday flights around mid to late September.
When to Fly to Boise
Flying from Denver, CO (DEN) to Boise, ID (BOI) will usually cost between $193 to $343 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 late March, with an average price of $320. Planning your trip to low-cost times can easily save you $103 on economy flights and even more on first-class flights. Generally, any price below $241 can be considered a good price for a round-trip DEN to BOI flight.
See below for a graph of average weekly prices for the DEN to BOI route. All prices are for round-trip tickets in USD.
Compared to other flights, the DEN to BOI flight is much cheaper than the average and costs much less than the average flight leaving from Denver. 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 BOI to DEN 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 DEN to BOI 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 DEN to BOI? 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 Boise Air Terminal Airport to Denver International Airport?
The distance between the two airports is roughly 647 miles or 1041 kilometers.
How long does it take to fly from DEN to BOI?
The real-world flight time for a nonstop DEN to BOI flight is about 2 hour 9 minutes.
How many flights go between Denver, CO and Boise, ID?
It depends on the day of the week and the date, but a typical day might have around 63 available flights from DEN to BOI.
Airport Location Info
|Origination airport name||Denver International Airport|
|Country||the United States|
|Destination airport name||Boise Air Terminal Airport|
|Country||the United States|
Late and Early Flight Data
Flights from DEN to BOI tend to depart later than the average flight. According to our recently updated data, 36% of flights departed 5 or more minutes late, and 9% of flights left 5 or more minutes early. On average you can expect to leave BOI heading for DEN about 26 minutes late. This does significantly impact arrival time, as the average landing time in Boise, ID is about 22 minutes late. The numbers below show a recent average of take-off times versus the scheduled departure flight:
- Southwest: 16 minutes late
- SkyWest: 37 minutes late
- United: 21 minutes late
- Frontier: 18 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.