Route
HLN → DEN
Helena Regional Airport Denver International Airport
594 miles
Return route DEN → HLN →
How punctual is this route?
- On-time arrivals
- 84.0%
- Less than 15 minutes late
- Cancelled
- 0.4%
- Of scheduled flights
- Average delay when late
- 107 min
- Flights arriving 15+ minutes late
- Flights tracked
- 783
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 46%
- Air traffic control & airport 23%
- Extreme weather 16%
- Late-arriving aircraft 15%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 75.3% | 90 |
| October 2025 | 83.7% | 87 |
| November 2025 | 86.2% | 59 |
| December 2025 | 77.4% | 62 |
| January 2026 | 91.9% | 62 |
| February 2026 | 89.3% | 56 |
| March 2026 | 88.5% | 62 |
| April 2026 | 93.3% | 60 |
| May 2026 | 93.5% | 62 |
| June 2026 | 72.9% | 60 |
| July 2026 | 83.3% | 61 |
| August 2026 | 76.3% | 62 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| SkyWest Airlines | 783 | 84.0% | 0.4% | 107 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
Reviews
No reviews yet. Be the first to review this route.