Route
DEN → BIL
Denver International Airport Billings Logan International Airport
455 miles
Return route BIL → DEN →
How punctual is this route?
- On-time arrivals
- 80.3%
- Less than 15 minutes late
- Cancelled
- 0.7%
- Of scheduled flights
- Average delay when late
- 74 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,774
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 47%
- Airline (crew, maintenance, cleaning) 33%
- Air traffic control & airport 10%
- Extreme weather 9%
- 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 | 84.3% | 167 |
| October 2025 | 91.0% | 155 |
| November 2025 | 88.0% | 146 |
| December 2025 | 80.8% | 124 |
| January 2026 | 81.3% | 124 |
| February 2026 | 80.9% | 111 |
| March 2026 | 74.4% | 124 |
| April 2026 | 89.8% | 128 |
| May 2026 | 84.0% | 163 |
| June 2026 | 76.7% | 176 |
| July 2026 | 70.3% | 179 |
| August 2026 | 66.5% | 177 |
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 | 1,049 | 81.1% | 1.1% | 75 min |
| United Airlines | 725 | 79.2% | 0.1% | 73 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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