DEN to BTM flight delays & on-time performance
Nonstop flights from Denver International Airport to Bert Mooney Airport · 578 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at DEN or BTM right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Denver (DEN) to Butte (BTM) arrived on time 73% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0.3% were cancelled, and 10% arrived an hour or more late.
- SkyWest Airlines is the only airline reporting nonstop flights on this route.
- Tuesday was the most reliable day to fly (85% on time) and Thursday the least (65%).
- The largest source of delay minutes was late-arriving aircraft (38%).
Which airline is most on time from DEN to BTM?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 73% | 0.3% | 31 min | 10.5% | 365 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
Not enough departures across different hours to compare.
Best day of the week
On-time arrival rate by day of departure.
- Monday73%0.0% cancelled
- Tuesday85%0.0% cancelled
- Wednesday73%0.0% cancelled
- Thursday65%0.0% cancelled
- Friday65%1.9% cancelled
- Saturday83%0.0% cancelled
- Sunday65%0.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft38%
- Airline (crew, maintenance, cleaning, fueling)37%
- Extreme weather15%
- Air traffic control & airport congestion10%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
DEN to BTM: common questions
- How often are DEN to BTM flights on time?
- 73% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Denver to Butte cancelled?
- 0.3% of scheduled flights were cancelled (1 of 365).
- How long are typical delays?
- Across all flights the average arrival delay was 31 min (early arrivals count as zero). Flights that were late arrived 111 min behind schedule on average, and 10.5% of flights were an hour or more late.
- How long is taxi time at DEN?
- Flights on this route spent 21 min taxiing from the gate to takeoff on average.
Related routes
Return trip: BTM to DEN — 80% on time
More flights from Denver
More flights to Butte
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: DEN → BTM, nonstop flights by US airlines that report to the DOT. How we calculate this.