Route Reliability
San Francisco → Kalispell
SFO–FCA · 844 miles · San Francisco International Airport to Glacier Park International Airport
- 81%
- Arrive within 15 minutes
- 1 min
- Average arrival delay
- 0.8%
- Cancelled
- 262
- Flights in the data
Data through May 2026.
United Airlines is the only airline in this data on this route, arriving on time 81% of the time across 262 flights. No comparison to make.
What the data says
Morning-you made the right choice.
SFO–FCA flights departing between 6–9 AM arrived on time 94% of the time, versus 78% between 12–3 PM.
Friday is doing you no favors.
SFO–FCA flights arrived on time 92% of the time on Saturdays and just 75% on Fridays. That gap is worth planning around.
Recent months have been rougher.
SFO–FCA flights arrived on time 68% of the time over the last three months in the data, compared with 83% in the three months before that.
Flights on this route
The breakdown
- Mon78%(36 flights)
- Tue75%(24 flights)
- Wed83%(24 flights)
- Thu81%(36 flights)
- Fri75%(51 flights)
- Sat92%(51 flights)
- Sun81%(37 flights)
- 6–9 AM94%(33 flights)
- 9 AM–12 PM84%(43 flights)
- 12–3 PM78%(157 flights)
- 3–6 PM81%(26 flights)
Jun 81% → May 20% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 81% | 32 |
| July 2025 | 77% | 39 |
| August 2025 | 83% | 41 |
| September 2025 | 83% | 36 |
| October 2025 | 84% | 25 |
| December 2025 | 79% | 14 |
| January 2026 | 86% | 21 |
| February 2026 | 95% | 20 |
| March 2026 | 90% | 20 |
| May 2026 | 20% | 10 |
Same trip, other airports
Keep nerding
Based on 262 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.