San Francisco (SFO) to Kalispell (FCA): On-Time Performance
Data through May 2026
San Francisco (SFO) to Kalispell (FCA) is a thinner route than most in this dataset — 262 departures over the past year, roughly 5 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 80% arrived on time.
- On-time
- 80%
- arrived <15 min late
- Avg delay
- 10 min
- completed flights
- Cancelled
- 0.5%
- Flights/day
- 0.72
- last 12 months
- Duration
- 2h 29m
- scheduled
- Distance
- 844 mi
Monthly on-time trend
Best time to fly from SFO to FCA
Aim for departures around 8 a.m. (91% on-time); avoid 12 p.m. departures (78%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 80% | 8 min |
| Tuesday | 71% | 18 min |
| Wednesday | 81% | 9 min |
| Thursday | 81% | 7 min |
| Friday | 75% | 10 min |
| Saturday | 85% | 8 min |
| Sundaybest | 86% | 8 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft37%
- Airline operations29%
- National airspace system31%
- Weather4%
Frequently asked questions
- How often are flights from SFO to FCA delayed?
- 20% of SFO–FCA flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 10 minutes.
- What is the best time of day to fly from SFO to FCA?
- Departures around 8 a.m. have the best record (91% on-time), while departures around 12 p.m. have the worst (78%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SFO to FCA?
- The scheduled SFO–FCA flight time averages 2h 29m over 844 miles. Actual arrival times vary — flights on this route land 15+ minutes late 20% of the time.
- How often are SFO to FCA flights cancelled?
- 0.5% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from SFO to FCA?
- August 2024 was the roughest month in this dataset, with only 76% of arrivals on time. The best was February 2026 at 95%. If your dates are flexible, that 19-point gap is worth planning around.
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Based on 426 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.