Route on-time record
IDA to SLC: most on-time flights and the best time to fly
Idaho Falls (Idaho Falls Regional Airport) to Salt Lake City (Salt Lake City International Airport). 1,179 nonstop flights in Jun 2025 to May 2026, 92% arrived within 15 minutes and 0.3% were cancelled. The most reliable flight number was SkyWest 3701 at 11:30 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
IDA → SLC
Idaho Falls to Salt Lake City: 1,179 nonstop flights a year
On time (12 months)
92%
Cancelled
0.3%
avg delay 9 min
Best time to leave
9 AM to noon
98% on time vs 89% 6 to 9 PM
Most reliable airline
SkyWest
93% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · SkyWest 3701 · sold as United Express, Delta Connection, American Eagle or Alaska
11:30 AM → 12:40 PM1h 10m nonstop
Local times, typical schedule. Last flown 2026-05-31.
96%
chance on time
- On time (history)
- 96%
- Cancelled
- 0.0%
- Avg arrival delay
- 4 min
- Arrived on time 96% of the time (25 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (9 AM to noon: 98% on time; 6 to 9 PM: 89%).
Limited track record · 25 flights
Find 11:30 AM flight fares Opens this date on Aviasales#2 · SkyWest 3765 · sold as United Express, Delta Connection, American Eagle or Alaska
1:10 PM → 2:19 PM1h 11m nonstop
Local times, typical schedule. Last flown 2026-05-31.
93%
chance on time
- On time (history)
- 92%
- Cancelled
- 0.0%
- Avg arrival delay
- 7 min
- Arrived on time 92% of the time (147 flights, Jun 2025 to May 2026).
- Never cancelled in 147 scheduled flights.
Moderate track record · 147 flights
Find 1:10 PM flight fares Opens this date on Aviasales#3 · SkyWest 3895 · sold as United Express, Delta Connection, American Eagle or Alaska
6:55 PM → 8:00 PM1h 15m nonstop
Local times, typical schedule. Last flown 2026-05-31.
89%
chance on time
- On time (history)
- 89%
- Cancelled
- 0.3%
- Avg arrival delay
- 8 min
- Arrived on time 89% of the time (339 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (6 to 9 PM: 89% on time; 9 AM to noon: 98%).
Strong track record · 339 flights
Find 6:55 PM flight fares Opens this date on Aviasales#4 · Delta 2335
6:00 AM → 7:05 AM1h 08m nonstop
Local times, typical schedule. Last flown 2026-05-31.
88%
chance on time
- On time (history)
- 89%
- Cancelled
- 0.9%
- Avg arrival delay
- 20 min
- Arrived on time 89% of the time (314 flights, Jun 2025 to May 2026).
Strong track record · 314 flights
Find Delta 2335 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)93%
862 flights · 93% on time as flown · 0.1% cancel
- Delta Air Lines89%
317 flights · 89% on time as flown · 0.8% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM90%
365 flights · avg delay 17 min
- 9 AM to noon98%
109 flights · avg delay 1 min
- Noon to 3 PM93%
258 flights · avg delay 6 min
- 3 to 6 PM94%
107 flights · avg delay 2 min
- 6 to 9 PM89%
340 flights · avg delay 8 min
Smarter routing
Nearby airports that run more on time
PIH → SLC 95% chance on time
Pocatello Regional Airport to Salt Lake City International Airport · 424 flights a year · 49 mi from your airports · yours: 91%
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Airline (crew, maintenance, boarding)76%
- Severe weather16%
- Air traffic control and airport volume6%
- Late-arriving aircraft3%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
IDA to SLC questions
- What time of day is best to fly IDA to SLC?
- 9 AM to noon: 98% of flights arrived on time, against 89% for departures 6 to 9 PM.
- Which airline is most on time from IDA to SLC?
- SkyWest, with a season-adjusted 93% chance of operating and arriving on time over 862 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on IDA to SLC?
- January (84% on time); the best was November (96%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from IDA
Live status: FAA delays and ground stops