Flight number record
OO 5245
SkyWest Airlines · Casper to Denver
- Route
- CPR → DEN
- Departs
- 11:21
- Flights
- 364
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 5245, check with SkyWest Airlines. SkyWest Airlines flies under contract for larger airlines, so a ticket for this flight may show a different airline code and number.
OO 5245 earns a B. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 7 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 364 flights, with a median arrival 10 minutes early.
Set against the rest of the country, OO 5245's record is 7 points better than the US average of 77.3%. That gap is worth roughly 67 fewer late arrivals for every thousand flights.
Key figures
On time
84.0%
Arrivals under 15 minutes late, of 357 completed flights
Avg delay
115 min
Across delayed arrivals only, not all flights
Cancelled
1.92%
National rate is 1.89%
1 hour+ late
9.2%
National rate is 8.3%
These figures cover 364 flights between September 2025 and August 2026. Beyond the headline rate, 9.2% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When OO 5245 flies
OO 5245 flies CPR to DEN without a single fixed slot. Its most common scheduled departure was 11:21, used on 84 of 364 flights, with 11:22 (63 flights) and 11:26 (61 flights) next.
- Departs 11:2184 flights23.1%
- Departs 11:2263 flights17.3%
- Departs 11:2661 flights16.8%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 11:21 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and OO 5245 runs 6 points better at 84.0%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
OO 5245 next to CPR to DEN
Every carrier on CPR to DEN combined arrived on time 83.1% of the time across 2,629 flights, so OO 5245 is about level with it. Across its whole network SkyWest Airlines managed 78.7%, which this flight beats by 5 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 5245thin sample | 364 | 84.0% | 115 min | 1.92% | B |
| All SkyWest Airlines on CPR–DEN | 2,629 | 83.1% | 91 min | 0.95% | B+ |
| All carriers on CPR–DEN | 2,629 | 83.1% | 91 min | 0.95% | B+ |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 5245 quarter by quarter
OO 5245 did not run the same all year. Its best quarter was Jul–Sep 2025 at 93.3% on time and its weakest Jul–Sep 2026 at 80.6%, a swing of 13 points on roughly 73 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202530 flights93.3%
- Oct–Dec 202591 flights85.4%
- Jan–Mar 202690 flights81.4%
- Apr–Jun 202691 flights84.4%
- Jul–Sep 202662 flights80.6%
Scale runs 70% to 100%.
By weekday, OO 5245 did best on Saturday at 100.0% on time and worst on Thursday at 74.5%. Each day rests on about 52 flights, so a gap of 26 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 5245 runs when it is late
OO 5245 often beats the schedule: 131 of 357 completed flights, 37%, arrived 15 minutes or more early. When OO 5245 is late it tends to be very late: 33 of its 57 late arrivals were an hour or more behind, and 18 were two hours or more.
- 15+ min early131 flights36.7%
- Within 15 min169 flights47.3%
- 15–29 min late12 flights3.4%
- 30–59 min late12 flights3.4%
- 1–2 hours late15 flights4.2%
- 2+ hours late18 flights5.0%
Scale runs 0% to 100%.
Share of 357 completed flights by arrival against schedule.
14 of 66 late departures made up the time and arrived on time, 21% of them. Only 5 left on time and still arrived late.
The worst days
Worst days for OO 5245
The latest arrival of the period was on 19 January 2026, 9 hours 16 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. On four of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 19 January 2026 | 9 hours 16 minutes | Late-arriving aircraft |
| 26 April 2026 | 8 hours 57 minutes | Carrier |
| 23 October 2025 | 5 hours 47 minutes | Carrier |
| 26 May 2026 | 5 hours 34 minutes | Carrier |
| 16 October 2025 | 5 hours 9 minutes | Carrier |
Delay causes
Why OO 5245 runs late
Late-arriving aircraft accounts for 52% of the 6,539 delay minutes carriers reported here, and the remaining four split what is left.
- 52%Late-arriving aircraft
- 40%Carrier
- 6%National Airspace System
- 2%Extreme weather
52% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 6,539 reported delay minutes here, that single category outweighs weather by 25 to one. The split is drawn from 6,539 delay minutes reported on OO 5245.
Cancellations sit at 1.92% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
9.2% 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.
The same number turns up on one other city pair in the data, including DEN to RAP (21), but none flew often enough under OO 5245 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to CPR to DEN only.
One caution: this is a thin sample. 364 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 OO 5245
For a booking, read OO 5245 as 84.0% on time with 1.92% cancelled over 364 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- CPR to DEN, every carrier and departure
- DEN to CPR, the return direction
- SkyWest Airlines 5818 on the same route88.1%
- SkyWest Airlines 4658 on the same route88.5%
- SkyWest Airlines 5513 on the same route91.6%
- SkyWest Airlines 4631 on the same route83.8%
- SkyWest Airlines 4666 on the same route77.1%
- SkyWest Airlines 5809 on the same route77.1%
- Denver International (DEN) delay statistics
- SkyWest Airlines on-time record
- Every SkyWest Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
A flight number here means SkyWest Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
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.