60% of flights from Bozeman to San Francisco arrived on time over the past 12 months. That is worse than the typical U.S. route. 19% of flights arrived more than an hour late or not at all.
How late?
The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for BZN → SFO: when a flight was late, it was under 45 minutes late 38% of the time. About 1 in 5 flights landed an hour or more late, and 1 in 29 three hours or more; 0.9% were cancelled outright.
- On time or early60%
- 15–30 min late7.4%
- 30–60 min late13%
- 1–2 hours late12%
- 2–3 hours late3.5%
- 3+ hours late3.5%
- Diverted0.0%
- Cancelled0.9%
Share of all 458 scheduled flights, past 12 months, by arrival time against schedule.
By airline
| Airline | Flights | On time | Cancelled | Typical arrival | 1h+ late | Avg when late | Operated by |
|---|---|---|---|---|---|---|---|
| United Airlines | 378 | 68% | 0.0% | −6 min | 15.3% | +92 min | United Airlines 82%, SkyWest 18% |
| Alaska Airlines | 80 | — | — | — | — | — | Horizon Air |
Airline = the name on the ticket. Regional flights (e.g. "Delta Connection") count under the ticketing airline, and the operator is listed.
Best time of day to fly
On-time rate by scheduled departure hour (local time at BZN). Delays build through the day as late planes knock on, so early flights usually do best.
By airline and hour
| Departs | United Airlines |
|---|---|
| 4 p.m. | 59% |
By month
Each calendar month pooled over 2023–2026. Best: August (70%). Worst: July (58%).
By day of week
| Day | Flights | On time | Cancelled |
|---|---|---|---|
| Monday | 63 | — | — |
| Tuesday | 62 | — | — |
| Wednesday | 62 | — | — |
| Thursday | 67 | — | — |
| Friday | 62 | — | — |
| Saturday | 69 | — | — |
| Sunday | 73 | — | — |
Why flights were late
Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.
Cancellations: airline 3 · weather 1
Month by month
Not enough months with data to draw a trend.
Flight numbers on this route
Regular flights with at least 120 scheduled trips in the past year. Sorted by departure time.
| Flight | Departs | Flights | On time | Cancelled | Typical arrival | Operated by |
|---|---|---|---|---|---|---|
| UA 1702 | 4:17 p.m. | 200 | 55% | 0.0% | +9 min | United Airlines |
Worst days in the past year
| Date | Flights | On time | Cancelled |
|---|---|---|---|
| Feb 15, 2026 | 3 | 0% | 0 |
| Mar 8, 2026 | 3 | 67% | 0 |
| Mar 1, 2026 | 3 | 100% | 0 |
| Mar 15, 2026 | 3 | 100% | 0 |
| Feb 22, 2026 | 3 | 100% | 0 |
Questions
How often are flights from BZN to SFO on time?
60% of 458 scheduled flights from Bozeman, MT to San Francisco, CA arrived within 15 minutes of schedule between September 2025 and August 2026. 0.9% were cancelled.
What month has the most delays from BZN to SFO?
July (58% on time). The best month is August (70%), over 2023–2026.
Related
- SFO → BZN (return)
- Bozeman Yellowstone (BZN) delays by hour
- Flights into San Francisco (SFO)
- United Airlines on-time record
- Alaska Airlines on-time record
- Connecting off this flight? Check the risk
Domestic flights by the airlines that report to the U.S. DOT, plus their regional partners. "On time" means arriving less than 15 minutes after schedule; cancelled and diverted flights count as not on time. Past performance is a guide, not a forecast. Method.