Carrier route record
OOIDA→DEN
SkyWest Airlines · Idaho Falls to Denver
- Flights
- 1,418
- Period
- September 2025 to August 2026
- Share of route
- 85%
- Carriers
- 2
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with SkyWest Airlines.
SkyWest on IDA to DEN lands a B+, 5 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by an hour and a half on average. That rests on 1,418 flights, with a median arrival 11 minutes early.
Set against the rest of the country, SkyWest's IDA to DEN record is 5 points better than the US average of 77.3%. That gap is worth roughly 46 fewer late arrivals for every thousand flights.
Key figures
On time
81.9%
Arrivals under 15 minutes late, of 1,406 completed flights
Avg delay
93 min
Across delayed arrivals only, not all flights
Cancelled
0.42%
National rate is 1.89%
Whole route
81.1%
Every carrier on IDA to DEN, 1,664 flights
These figures cover 1,418 flights between September 2025 and August 2026. Beyond the headline rate, 9.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
SkyWest against every carrier on IDA to DEN
SkyWest flew 1,418 of the 1,664 flights on IDA to DEN, most of the route. Its 81.9% on time is about level with the route as a whole at 81.1%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from SkyWest at 81.9% to United at 76.2%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| SkyWest Airlines (this page) | 1,418 | 81.9% | 93 min | 0.42% | B+ |
| United Airlinesthin sample | 246 | 76.2% | 110 min | 0.00% | B+ |
Flight by flight
SkyWest flight numbers on IDA to DEN
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Departure window
When SkyWest runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 20 points, against half a point between the best and worst carrier.
- 5am–8am457 flights89.7%
- 8am–11am302 flights89.6%
- 11am–2pm76 flights88.2%
- 2pm–5pm342 flights72.3%
- 5pm–8pm239 flights69.5%
- 8pm–5am2 flights—
Scale runs 60% to 95%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 89.7% of the time, against 69.5% for the evening window. That is 20 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5am–8am window is the busiest, with 457 flights scheduled in it.
Across the year
SkyWest on IDA to DEN through the year
August is the worst month at 67.8% on time, 23 points below November, the best at 90.8%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. September was the busiest month here, with 164 flights.
Across the week, Tuesday is the strongest day at 86.3% on time and Saturday the weakest at 78.4%, a spread of 8 points.
Arrival by arrival
How late SkyWest on IDA to DEN runs when it is late
SkyWest on IDA to DEN often beats the schedule: 566 of 1,406 completed flights, 40%, arrived 15 minutes or more early. The 254 late arrivals split 60 under half an hour, 68 between 30 and 60 minutes, and 126 an hour or more.
- 15+ min early566 flights40.3%
- Within 15 min586 flights41.7%
- 15–29 min late60 flights4.3%
- 30–59 min late68 flights4.8%
- 1–2 hours late60 flights4.3%
- 2+ hours late66 flights4.7%
Scale runs 0% to 100%.
Share of 1,406 completed flights by arrival against schedule.
34 of 238 late departures made up the time and arrived on time, 14% of them. 50 flights left on time and still arrived late.
The worst days
Worst days for SkyWest on IDA to DEN
The latest arrival of the period was on 16 September 2025, 10 hours 31 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 16 September 2025 | 10 hours 31 minutes | Carrier |
| 27 February 2026 | 10 hours 23 minutes | Carrier |
| 19 December 2025 | 8 hours 57 minutes | Carrier |
| 17 August 2026 | 8 hours 13 minutes | Carrier |
| 12 October 2025 | 7 hours 48 minutes | Carrier |
Delay causes
Why SkyWest runs late on this route
Carrier accounts for 44% of the 24,000 delay minutes carriers reported here, and the remaining four split what is left.
- 44%Carrier
- 27%National Airspace System
- 23%Late-arriving aircraft
- 6%Extreme weather
The largest share of delay minutes, 44%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 10,000 of the 24,000 delay minutes reported here. The split is drawn from 23,676 reported delay minutes.
Cancellations are rare at 0.42%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and stage length
What a delay here costs
9.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
At 458 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 5am–8am window matters as much as it does.
The return leg runs 82.6% on time across 1,417 flights, within half a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
The sample behind these figures is 1,418 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
What to do with this
Booking SkyWest on IDA to DEN
Put together: the calendar is the biggest lever here, not the carrier or the hour. November runs 90.8% on time and August 67.8%, a swing of 23 points. If the dates move at all, move them out of August before you think about anything else. 1,406 completed flights over 12 months sit behind that.
Related
Where to go next
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.