Best Time to Fly FCA to SLC: On-Time Stats by Hour & Airline
Glacier Park International → Salt Lake City International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 90.8% of Kalispell (FCA) to Salt Lake City (SLC) flights arrived on time (1,111 scheduled flights). That is 13.2 points above the national average of 77.6%.
Among 2 airlines, SkyWest Airlines led with 92.7% on time and Delta Air Lines was last with 87.7%.
Over 24 months, Sunday was the most reliable day (92% on time) and January the worst month (84%).
The cancellation rate was 0.9% (US average 1.8%).
FCA to SLC on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlines | 92.7% | 86 min | 1.1% | 695 |
| Delta Air Lines | 87.7% | 134 min | 0.5% | 416 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly FCA to SLC
On-time arrival % by scheduled departure hour (local time), 2,288 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 88.8% | 0.3% | 714 |
| 11am–12pm | 94.9% | 0.0% | 176 |
| 12pm–1pm | 93.6% | 0.9% | 537 |
| 1pm–2pm | 91.8% | 0.0% | 185 |
| 2pm–3pm | Limited data | 6 | |
| 5pm–6pm | 92.1% | 1.0% | 192 |
| 6pm–7pm | 91.6% | 0.2% | 478 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on FCA to SLC
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 77.5% | -13.8 pts | 0.0% | 40 |
| Christmas & New Year (Dec 20 - Jan 3) | 86.4% | -4.9 pts | 1.2% | 82 |
| Summer peak (Jun 15 - Aug 15) | 94.4% | +3.1 pts | 0.0% | 429 |
| All other days | 91.3% | — | 0.5% | 1,737 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).