How reliable is Gallatin Field?
Flights from BZN departed within 15 minutes of schedule in 82% of 66,726 flights in official BTS history — and weather is calmest in Jul. Here’s the full picture before you book.
Reliability score
on-time, cancellations & delays
Weather favorability
year-round climate
Origin-airport operations
What the departure punctuality at BZN looks like
On-time departures
across 66,726 flights
Source: BTS Airport Operations · data through 2026-06-25. Role-specific BTS departure history; advisory context, not a guarantee for any flight.
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Weather by month
When the weather works for you at Bozeman
A calm-weather score (0–100) for each month from decades of airport observations — how often conditions disrupt flying, not temperature. Higher is calmer.
Calmest month
Calmest flying weather of the year · 98/100 favorability
Roughest month
Most disruptive — low visibility & fog, snow · 80/100 favorability
The read on BZN
What the numbers say about flying through Gallatin Field
Across official performance history, flights from Bozeman left within 15 minutes of schedule about 82% of the time over 66,726 flights. That's a solid, better-than-average operational record. Pair it with a low cancellation rate of 1.0%, so flights here rarely vanish outright. When a departure does run late, the typical delay is around 12 minutes.
On weather, Bozeman is an unusually calm-weather airport year-round. July is the calmest stretch for flying, scoring 98 out of 100 for favorable conditions, while February is the most disruptive at 80, driven mainly by low visibility & fog and snow. The seasonal swing is real but manageable; favor the calmer months when your dates are flexible.
None of this guarantees your specific flight — it’s the backdrop. To turn it into a booking, score real flights to Bozeman, read how we weigh it all in how the PlaneSane Score works, and brush up with how to pick a reliable flight and avoiding weather delays.
Common questions about BZN
- How reliable is Gallatin Field (BZN)?
- Flights from Bozeman left within 15 minutes of schedule roughly 82% of the time across 66,726 flights of official history — a solid, better-than-average operational record. The cancellation rate runs about 1.0%. It's advisory context, not a guarantee for any single flight.
- What is the best month to fly from BZN for good weather?
- July has the calmest flying weather at Gallatin Field. February is the most disruptive, mainly from low visibility & fog and snow.
Planning a trip through Bozeman?
Score real flights to and from BZN on reliability, weather, and connection safety — not just price.