Flight number record
OO 5083
SkyWest Airlines · Denver to Cheyenne
- Route
- DEN → CYS
- Departs
- 21:04
- Flights
- 345
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 5083, 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 5083 sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 4 points worse than the national rate of 77.3%. The late ones land close to two hours behind schedule. That rests on 345 flights, with a median arrival 5 minutes early.
The national on-time rate over the same period is 77.3%, so OO 5083 runs 4 points behind the country as a whole. Across a thousand flights that is about 44 extra late arrivals.
Key figures
On time
72.9%
Arrivals under 15 minutes late, of 339 completed flights
Avg delay
114 min
Across delayed arrivals only, not all flights
Cancelled
1.16%
National rate is 1.89%
1 hour+ late
14.2%
National rate is 8.3%
These figures cover 345 flights between September 2025 and August 2026. Beyond the headline rate, 14.2% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When OO 5083 flies
OO 5083 flies DEN to CYS without a single fixed slot. Its most common scheduled departure was 21:04, used on 189 of 345 flights, with 21:05 (135 flights) next.
- Departs 21:04189 flights54.8%
- Departs 21:05135 flights39.1%
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 21:04 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and OO 5083 runs 3 points better at 72.9%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
OO 5083 next to DEN to CYS
Every carrier on DEN to CYS combined arrived on time 79.0% of the time across 730 flights, so OO 5083 is 6 points behind it. Across its whole network SkyWest Airlines managed 78.7%, which this flight trails by 6 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 5083thin sample | 345 | 72.9% | 114 min | 1.16% | C |
| All SkyWest Airlines on DEN–CYS | 730 | 79.0% | 93 min | 1.10% | B |
| All carriers on DEN–CYS | 730 | 79.0% | 93 min | 1.10% | B |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 5083 quarter by quarter
OO 5083 did not run the same all year. Its best quarter was Oct–Dec 2025 at 86.8% on time and its weakest Jul–Sep 2026 at 55.9%, a swing of 31 points on roughly 69 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 flights80.0%
- Oct–Dec 202577 flights86.8%
- Jan–Mar 202685 flights75.9%
- Apr–Jun 202691 flights67.0%
- Jul–Sep 202662 flights55.9%
Scale runs 45% to 90%.
By weekday, OO 5083 did best on Saturday at 83.3% on time and worst on Friday at 60.4%. Each day rests on about 49 flights, so a gap of 23 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 5083 runs when it is late
When OO 5083 is late it tends to be very late: 48 of its 92 late arrivals were an hour or more behind, and 21 were two hours or more.
- 15+ min early62 flights18.3%
- Within 15 min185 flights54.6%
- 15–29 min late18 flights5.3%
- 30–59 min late26 flights7.7%
- 1–2 hours late27 flights8.0%
- 2+ hours late21 flights6.2%
Scale runs 0% to 100%.
Share of 339 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 87 departures that left 15 minutes late or more, only 5 made it up before arrival. 10 flights left on time and still arrived late.
The worst days
Worst days for OO 5083
The latest arrival of the period was on 16 April 2026, 11 hours 13 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The five worst days are spread across April, May, December and June, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 16 April 2026 | 11 hours 13 minutes | Late-arriving aircraft |
| 3 May 2026 | 11 hours 8 minutes | Carrier |
| 4 December 2025 | 11 hours 2 minutes | Extreme weather |
| 9 June 2026 | 10 hours 53 minutes | National Airspace System |
| 9 December 2025 | 10 hours 38 minutes | Carrier |
Delay causes
Why OO 5083 runs late
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 11,000 reported delay minutes.
- 38%Carrier
- 32%Late-arriving aircraft
- 21%National Airspace System
- 9%Extreme weather
The largest share of delay minutes, 38%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 3,956 of the 11,000 delay minutes reported here. The split is drawn from 10,505 delay minutes reported on OO 5083.
Cancellations sit at 1.16% against a national 1.89%, which is ordinary. Diversions add another 0.58%.
Connections and routes
What a delay on this flight costs
14.2% 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 two other city pairs in the data, including LAR to DEN (18) and SUX to DEN (12), but none flew often enough under OO 5083 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DEN to CYS only.
One caution: this is a thin sample. 345 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 5083
For a booking, OO 5083 is a flight to put a long connection behind. 14.2% of its completed flights arrived an hour or more late, which a short layover will not absorb. If the onward flight is on a separate ticket, the risk sits with you.
Related
Where to go next
- DEN to CYS, every carrier and departure
- CYS to DEN, the return direction
- 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.