Carrier route record
OOJAC→DEN
SkyWest Airlines · Jackson to Denver
- Flights
- 470
- Period
- September 2025 to August 2026
- Share of route
- 29%
- Carriers
- 2
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with SkyWest Airlines.
SkyWest on JAC to DEN earns an A. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 11 points better than the national rate of 77.3%. When something does go wrong the average delay runs close to two hours. That rests on 470 flights, with a median arrival 19 minutes early.
Set against the rest of the country, SkyWest's JAC to DEN record is 11 points better than the US average of 77.3%. That gap is worth roughly 107 fewer late arrivals for every thousand flights.
Key figures
On time
88.0%
Arrivals under 15 minutes late, of 457 completed flights
Avg delay
102 min
Across delayed arrivals only, not all flights
Cancelled
2.77%
National rate is 1.89%
Whole route
80.1%
Every carrier on JAC to DEN, 1,631 flights
These figures cover 470 flights between September 2025 and August 2026. The median arrival is 19 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Carrier by carrier
SkyWest against every carrier on JAC to DEN
SkyWest flew 470 of the 1,631 flights on JAC to DEN, about 29% of it. Its 88.0% on time is 8 points better than the route as a whole, which runs 80.1%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from SkyWest at 88.0% to United at 76.9%.
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) | 470 | 88.0% | 102 min | 2.77% | A |
| United Airlines | 1,161 | 76.9% | 89 min | 0.60% | B+ |
Flight by flight
SkyWest flight numbers on JAC to DEN
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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 14 points, against half a point between the best and worst carrier.
- 5am–8am—
- 8am–11am313 flights91.8%
- 11am–2pm16 flights—
- 2pm–5pm89 flights79.1%
- 5pm–8pm52 flights78.0%
- 8pm–5am—
Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.
Book the morning departure. Flights leaving between 8am–11am arrive on time 91.8% of the time, against 78.0% for the evening window. That is 14 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 8am–11am window is the busiest, with 313 flights scheduled in it.
Across the year
SkyWest on JAC to DEN through the year
September is the best month on the calendar at 94.4% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. October was the busiest month here, with 62 flights.
Across the week, Tuesday is the strongest day at 93.7% on time and Friday the weakest at 84.4%, a spread of 9 points.
Arrival by arrival
How late SkyWest on JAC to DEN runs when it is late
SkyWest on JAC to DEN often beats the schedule: 265 of 457 completed flights, 58%, arrived 15 minutes or more early. The 55 late arrivals split 22 under half an hour, 16 between 30 and 60 minutes, and 17 an hour or more.
- 15+ min early265 flights58.0%
- Within 15 min137 flights30.0%
- 15–29 min late22 flights4.8%
- 30–59 min late16 flights3.5%
- 1–2 hours late11 flights2.4%
- 2+ hours late6 flights1.3%
Scale runs 0% to 100%.
Share of 457 completed flights by arrival against schedule.
11 of 47 late departures made up the time and arrived on time, 23% of them. 19 flights left on time and still arrived late.
The worst days
Worst days for SkyWest on JAC to DEN
The latest arrival of the period was on 18 December 2025, 25 hours 21 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The five worst days are spread across December, August and March, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 18 December 2025 | 25 hours 21 minutes | Late-arriving aircraft |
| 17 December 2025 | 15 hours 36 minutes | Extreme weather |
| 23 August 2026 | 8 hours 37 minutes | Carrier |
| 17 March 2026 | 2 hours 40 minutes | Carrier |
| 2 March 2026 | 2 hours 35 minutes | Extreme weather |
Delay causes
Why SkyWest runs late on this route
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 5,630 reported delay minutes.
- 40%Late-arriving aircraft
- 24%Extreme weather
- 22%Carrier
- 14%National Airspace System
Extreme weather accounts for 24% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 4.0 times the usual weather exposure. The split is drawn from 5,630 reported delay minutes.
40% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 5,630 reported delay minutes here, that single category outweighs weather by 2 to one.
Cancellations run at 2.77%, against 1.89% nationally. That is roughly one flight in 40 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and stage length
What a delay here costs
Badly late arrivals are rare here: only 3.7% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
At 406 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 8am–11am window matters as much as it does.
The return leg is a different operation and performs like one: it runs 92.3% on time across 470 flights, 4 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 4 points of difference.
One caution: this is a thin sample. 470 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking SkyWest on JAC to DEN
Put together: treat all of this as provisional. 470 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 88.0% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 457 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.