Bert Mooney Airport (BTM) delays & on-time performance
Butte, Montana · 2 nonstop destinations · 1 airlines · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at BTM right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
On-time arrivals
88%
arrived < 15 min late
Cancelled
0.4%
3 flights
Avg arrival delay
14 min
109 min when late
Departed on time
89%
avg taxi-out 18 min
Figures cover 726 departures from BTM; on-time is measured at arrival. Arrivals into BTM were on time 84% of the time.
Key facts
- Flights departing Bert Mooney Airport (BTM) arrived on time 88% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.4% were cancelled, and 5% arrived an hour or more late.
- Departures scheduled around 6pm did best (96% on time); around 10am did worst (75%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (78%).
Most delayed routes from BTM
Lowest on-time arrival rates among regularly flown routes.
- DEN · Denver80%365 flts
- SLC · Salt Lake City95%361 flts
Most reliable routes from BTM
Highest on-time arrival rates among regularly flown routes.
- SLC · Salt Lake City95%361 flts
- DEN · Denver80%365 flts
Best airline at BTM
Departures from this airport, ranked by on-time arrival.
| Airline | On time | Cancelled | Avg delay | Routes | Flights |
|---|---|---|---|---|---|
| SkyWest Airlines | 88% | 0.4% | 14 min | 2 | 726 |
Best time to fly out of BTM
On-time arrival rate by scheduled departure hour (local time).
- 9am85%198 flts
- 10am75%167 flts
- 6pm96%332 flts
Monthly trend
Why departures were late
- Airline (crew, maintenance, cleaning, fueling)78%
- Air traffic control & airport congestion13%
- Extreme weather7%
- Late-arriving aircraft3%
- Security0%
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.