Best Time to Fly SLC to IDA: On-Time Stats by Hour & Airline
Salt Lake City International → Idaho Falls Regional
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 89.0% of Salt Lake City (SLC) to Idaho Falls (IDA) flights arrived on time (1,193 scheduled flights). That is 11.4 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 78.8%.
Over 24 months, Saturday was the most reliable day (90% on time) and January the worst month (83%).
The cancellation rate was 0.4% (US average 1.8%).
SLC to IDA 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% | 66 min | 0.1% | 876 |
| Delta Air Lines | 78.8% | 70 min | 1.3% | 317 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SLC to IDA
On-time arrival % by scheduled departure hour (local time), 2,300 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | Limited data | 2 | |
| 9am–10am | 97.0% | 0.0% | 168 |
| 10am–11am | Limited data | 27 | |
| 11am–12pm | 91.1% | 0.0% | 530 |
| 1pm–2pm | 96.7% | 0.0% | 181 |
| 3pm–4pm | Limited data | 2 | |
| 4pm–5pm | 76.1% | 0.0% | 46 |
| 5pm–6pm | 90.2% | 0.3% | 616 |
| 9pm–10pm | 80.2% | 0.6% | 726 |
| 10pm–11pm | Limited data | 2 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SLC to IDA
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) | 92.5% | +4.1 pts | 0.0% | 40 |
| Christmas & New Year (Dec 20 - Jan 3) | 83.8% | -4.7 pts | 1.2% | 82 |
| Summer peak (Jun 15 - Aug 15) | 87.0% | -1.4 pts | 0.2% | 472 |
| All other days | 88.4% | — | 0.2% | 1,706 |
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).