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Route

Boise → Denver

BOIBoiseBoise Air Terminal/Gowen Field
DENDenverDenver International Airport
Distance
647 mi
Estimated flight time
~1h 50m

Same local time in Boise and Denver.

Observed nonstop

How often does this route fly?

Frequency

Several times a day

On average around 8 flights a day, observed from October 2025 to September 2026.

8
flights per day
8
busiest month · Dec
4
quietest month · Oct
1 hr 27 min
measured flight time
12 / 12
months seen

Through the year

Per day, month by month

  1. 8Jan2026
  2. 8Feb
  3. 8Mar
  4. 8Apr
  5. 8May
  6. 8Jun
  7. 8Jul
  8. 8Aug
  9. 8Sep
  10. 4Oct2025
  11. 7Nov
  12. 8Dec

In October 2025 we saw less traffic at Boise in general than usual; compare that month with care.

Airlines

Who flies it

Southwest Airlinesall year
United Airlinesall year
SkyWest Airlinesall year
Frontier Airlinesall year
Skymark Airlinesnow and then

Through the day

Departure times

Local time in Boise. Most departures between 05:00 and 08:00.

  1. 00:00
  2. 01:00
  3. 02:00
  4. 03:00
  5. 04:00
  6. 05:00
  7. 06:00
  8. 07:00
  9. 08:00
  10. 09:00
  11. 10:00
  12. 11:00
  13. 12:00
  14. 13:00
  15. 14:00
  16. 15:00
  17. 16:00
  18. 17:00
  19. 18:00
  20. 19:00
  21. 20:00
  22. 21:00
  23. 22:00
  24. 23:00

Through the week

By weekday

  1. 7.3Mon
  2. 7.3Tue
  3. 6.6Wed
  4. 7.4Thu
  5. 7Fri
  6. 7.5Sat
  7. 8Sun

Fleet

Aircraft observed

  1. Embraer 175E75L21%
  2. Boeing 737-900B73916%
  3. Boeing 737-700B73715%
  4. Boeing 737-800B73815%
  5. Boeing 737 MAX 8B38M10%
All the numbers in a table
MonthPer daySeenAirlines
January 20268243
  • SkyWest Airlines85×
  • Southwest Airlines85×
  • United Airlines60×
  • Frontier Airlines11×
February 20268225
  • SkyWest Airlines80×
  • Southwest Airlines80×
  • United Airlines53×
  • Frontier Airlines11×
  • Skymark Airlines1×
March 20268237
  • SkyWest Airlines90×
  • Southwest Airlines79×
  • United Airlines58×
  • Frontier Airlines9×
  • Skymark Airlines1×
April 20268224
  • Southwest Airlines83×
  • SkyWest Airlines78×
  • United Airlines55×
  • Frontier Airlines6×
  • Skymark Airlines1×
May 20268221
  • Southwest Airlines82×
  • United Airlines69×
  • SkyWest Airlines61×
  • Frontier Airlines9×
June 20268226
  • United Airlines96×
  • Southwest Airlines78×
  • SkyWest Airlines40×
  • Frontier Airlines12×
July 20268240
  • Southwest Airlines85×
  • United Airlines81×
  • SkyWest Airlines59×
  • Frontier Airlines13×
August 20268232
  • United Airlines100×
  • Southwest Airlines80×
  • SkyWest Airlines38×
  • Frontier Airlines13×
September 20268237
  • United Airlines112×
  • Southwest Airlines85×
  • SkyWest Airlines33×
  • Frontier Airlines4×
October 20254137
  • Southwest Airlines45×
  • SkyWest Airlines44×
  • United Airlines38×
  • Frontier Airlines10×
November 20257194
  • SkyWest Airlines76×
  • Southwest Airlines63×
  • United Airlines43×
  • Frontier Airlines11×
December 20258223
  • SkyWest Airlines81×
  • Southwest Airlines78×
  • United Airlines51×
  • Frontier Airlines11×

Airlines observed on this route

From observed callsign routes on BOI-DEN - not a booking guarantee.

About this route

  • Domestic route: both airports are in the same country.
  • The opposite direction has also been observed as a direct connection.
  • Direct destinations observed from Boise: 57.
  • Direct destinations observed from Denver: 203.

The airports on this route

Boise Air Terminal/Gowen Field

Boise, United StatesBOI / KBOI

Regional airport · 57 direct destinations · 2 runways · longest runway 10,000 ft

47 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center

Denver International Airport

Denver, United StatesDEN / KDEN

International hub · 203 direct destinations · 6 runways · longest runway 16,001 ft

32 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center

About the route from Boise to Denver

The observed direct connection between Boise Air Terminal/Gowen Field (BOI) and Denver International Airport (DEN) covers approximately 647 mi. The estimated flight time is around 1h 50m. Frontier Airlines, Skymark Airlines, SkyWest Airlines, Southwest Airlines and United Airlines have been observed on this connection in the available route data.

Frequently asked questions about this route

How far is Boise from Denver by air?
The great-circle distance between Boise Air Terminal/Gowen Field and Denver International Airport is approximately 647 mi.
How long is the flight from Boise to Denver?
Based on the distance, the estimated flight time is about 1h 50m. This is an estimate, not a schedule.
Is there a direct connection from Boise to Denver?
Yes, a direct connection between BOI and DEN has been observed in our route data.
Which airlines have been observed on this route?
In the available route data: Frontier Airlines, Skymark Airlines, SkyWest Airlines, Southwest Airlines and United Airlines.
How often is there a flight from Boise to Denver?
On average around 8 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 2,639 observed flights. Mainly Southwest Airlines, United Airlines, SkyWest Airlines. That is an observation, not a timetable.
What is the current time difference between Boise and Denver?
Same local time in Boise and Denver.

Where this data comes from

The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.

The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.

Route data updated on October 11, 2026.