Route on-time record
DEN to IDA: most on-time flights and the best time to fly
Denver (Denver International Airport) to Idaho Falls (Idaho Falls Regional Airport). 1,751 nonstop flights in Jun 2025 to May 2026, 79% arrived within 15 minutes and 0.7% were cancelled. The most reliable flight number was SkyWest 5374 at 8:10 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
DEN → IDA
Denver to Idaho Falls: 1,751 nonstop flights a year
On time (12 months)
79%
Cancelled
0.7%
avg delay 16 min
Best time to leave
Before 9 AM
87% on time vs 70% after 9 PM
Most reliable airline
United
81% chance on time
Lowest nonstop fare seen in the next two months: $250 (United 5374 on 2026-10-22). 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 5374 · sold as United Express, Delta Connection, American Eagle or Alaska
8:10 AM → 9:53 AM1h 45m nonstop
Local times, typical schedule. Last flown 2026-05-31.
85%
chance on time
- On time (history)
- 85%
- Cancelled
- 0.5%
- Avg arrival delay
- 12 min
- Arrived on time 85% of the time (214 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 87% on time; After 9 PM: 70%).
- Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).
Strong track record · 214 flights
Find 8:10 AM flight fares Opens this date on Aviasales#2 · SkyWest 5950 · sold as United Express, Delta Connection, American Eagle or Alaska
1:55 PM → 3:39 PM1h 45m nonstop
Local times, typical schedule. Last flown 2026-05-31.
79%
chance on time
- On time (history)
- 81%
- Cancelled
- 0.5%
- Avg arrival delay
- 17 min
- Arrived on time 81% of the time (208 flights, Jun 2025 to May 2026).
- Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).
Strong track record · 208 flights
Find 1:55 PM flight fares Opens this date on Aviasales#3 · United 2383
11:45 AM → 1:25 PM1h 40m nonstop
Local times, typical schedule. Last flown 2026-05-31.
78%
chance on time
- On time (history)
- 72%
- Cancelled
- 0.0%
- Avg arrival delay
- 13 min
- Arrived on time 72% of the time (32 flights, Jun 2025 to May 2026).
- Never cancelled in 32 scheduled flights.
- Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).
- 53% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 32 flights
Find United 2383 fares Opens this date on Aviasales#4 · SkyWest 5322 · sold as United Express, Delta Connection, American Eagle or Alaska
3:35 PM → 5:19 PM1h 44m nonstop
Local times, typical schedule. Last flown 2026-05-31.
77%
chance on time
- On time (history)
- 79%
- Cancelled
- 3.0%
- Avg arrival delay
- 18 min
- Arrived on time 79% of the time (127 flights, Jun 2025 to May 2026).
- Cancelled 3.0% of the time (4 of 133).
- Departs inside DEN's trouble window: 79% of its 174 ground stops and delay programs started between 2 PM and 8 PM.
Moderate track record · 127 flights
Find 3:35 PM flight fares Opens this date on Aviasales#5 · SkyWest 5714 · sold as United Express, Delta Connection, American Eagle or Alaska
7:12 PM → 9:03 PM1h 51m nonstop
Local times, typical schedule. Last flown 2026-05-20.
74%
chance on time
- On time (history)
- 81%
- Cancelled
- 0.0%
- Avg arrival delay
- 16 min
- Arrived on time 81% of the time (21 flights, Jun 2025 to May 2026).
- Departs inside DEN's trouble window: 79% of its 174 ground stops and delay programs started between 2 PM and 8 PM.
Limited track record · 21 flights
Find 7:12 PM flight fares Opens this date on Aviasales#6 · SkyWest 5989 · sold as United Express, Delta Connection, American Eagle or Alaska
7:20 PM → 9:07 PM1h 47m nonstop
Local times, typical schedule. Last flown 2026-05-31.
67%
chance on time
- On time (history)
- 55%
- Cancelled
- 0.0%
- Avg arrival delay
- 27 min
- Arrived on time 55% of the time (11 flights, Jun 2025 to May 2026).
- Departs inside DEN's trouble window: 79% of its 174 ground stops and delay programs started between 2 PM and 8 PM.
- 62% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 11 flights
Find 7:20 PM flight fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- United Airlines81%
154 flights · 83% on time as flown · 0.3% cancel
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)78%
1,570 flights · 78% on time as flown · 0.8% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM87%
361 flights · avg delay 9 min
- 9 AM to noon84%
365 flights · avg delay 10 min
- Noon to 3 PM80%
299 flights · avg delay 16 min
- 3 to 6 PM74%
192 flights · avg delay 20 min
- 6 to 9 PM70%
363 flights · avg delay 21 min
- After 9 PM70%
171 flights · avg delay 22 min
Best day: Wednesday (83%). Worst: Thursday (77%).
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)36%
- Late-arriving aircraft36%
- Air traffic control and airport volume20%
- Severe weather7%
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
DEN to IDA questions
- What time of day is best to fly DEN to IDA?
- Before 9 AM: 87% of flights arrived on time, against 70% for departures after 9 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from DEN to IDA?
- United, with a season-adjusted 81% chance of operating and arriving on time over 154 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 DEN to IDA?
- June (72% on time); the best was September (88%), 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 DEN
- IDA to DEN (return)
- DEN to PHX 75%
- DEN to SLC 77%
- DEN to LAX 79%
- DEN to LAS 75%
- DEN to SEA 73%
- DEN to ORD 70%
- DEN to DFW 75%
- DEN to SAN 76%
- DEN to MSP 78%
- DEN to ATL 80%
- DEN to SFO 68%
- DEN to AUS 76%
Most on-time flights from DEN on every route →
Live status: FAA delays and ground stops