Route Reliability
San Francisco → Missoula
SFO–MSO · 769 miles · San Francisco International Airport to Missoula Montana Airport
87
Pretty Reliable
WanderNerd Reliability Score
- 82%
- Arrive within 15 minutes
- 4 min
- Average arrival delay
- 0%
- Cancelled
- 136
- Flights in the data
Data through May 2026.
United Airlines is the only airline in this data on this route, arriving on time 82% of the time across 136 flights. No comparison to make.
What the data says
Departure time hasn't mattered much.
On-time rates stay between 80% and 81% across the day.
Sunday scaries are real for this one.
SFO–MSO flights arrived on time 92% of the time on Wednesdays and just 74% on Sundays. That gap is worth planning around.
It basically never cancels.
Out of 136 scheduled flights, only 0.0% were cancelled.
Flights on this route
The breakdown
- Mon83%(18 flights)
- Tue75%(12 flights)
- Wed92%(12 flights)
- Thu82%(17 flights)
- Fri77%(17 flights)
- Sat85%(40 flights)
- Sun74%(19 flights)
- 6–9 AM—(8 flights)
- 9 AM–12 PM80%(15 flights)
- 12–3 PM81%(112 flights)
27%
May
Jun 90% → May 27% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 90% | 31 |
| July 2025 | 80% | 35 |
| August 2025 | 93% | 30 |
| September 2025 | 85% | 13 |
| May 2026 | 27% | 11 |
Same trip, other airports
Keep nerding
Based on 136 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.