Flight number record

OO 5036

SkyWest Airlines · Cheyenne to Denver

Route: CYS → DEN
Departs: 06:00
Flights: 358
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 5036, 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 5036 lands a B+, 6 points better than the national rate of 77.6%. About one flight in six arrives 15 minutes late or worse, and those flights are late by close to two hours on average. That is a workable record, not a spotless one. That rests on 358 flights, with a median arrival 10 minutes early.

Set against the rest of the country, OO 5036's record is 6 points better than the US average of 77.6%. That gap is worth roughly 55 fewer late arrivals for every thousand flights.

On time

83.1%

Arrivals under 15 minutes late, of 355 completed flights

Avg delay

109 min

Across delayed arrivals only, not all flights

Cancelled

0.84%

National rate is 1.81%

1 hour+ late

7.9%

National rate is 8.1%

These figures cover 358 flights between July 2025 and June 2026. The median arrival is 10 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.

Schedule

When OO 5036 flies

OO 5036 is scheduled to leave Cheyenne (CYS) at 06:00 local time and reach Denver (DEN) at 06:45. That slot held for 322 of the 358 scheduled departures in the data, so the figures below describe one steady operation rather than a number that moved around the clock.

Departs 06:00322 flights89.9%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 06:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and OO 5036 runs 6 points worse at 83.1%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

OO 5036 next to CYS to DEN

Every carrier on CYS to DEN combined arrived on time 82.3% of the time across 740 flights, so OO 5036 is about level with it. Across its whole network SkyWest Airlines managed 79.0%, which this flight beats by 4 points.

OO 5036 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 5036thin sample	358	83.1%	109 min	0.84%	B+
All SkyWest Airlines on CYS–DEN	740	82.3%	92 min	1.35%	B
All carriers on CYS–DEN	740	82.3%	92 min	1.35%	B
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 5036 quarter by quarter

Quarter by quarter OO 5036 held fairly steady: 79.3% in Jul–Sep 2025, 83.7% in Oct–Dec 2025, 82.8% in Jan–Mar 2026 and 86.9% in Apr–Jun 2026. A spread of 8 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights79.3%
Oct–Dec 202592 flights83.7%
Jan–Mar 202689 flights82.8%
Apr–Jun 202685 flights86.9%

Scale runs 70% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, OO 5036 did best on Tuesday at 90.4% on time and worst on Friday at 76.0%. Each day rests on about 51 flights, so a gap of 14 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 5036 runs late

One category carries most of the weight here. Carrier accounts for 46% of the 6,509 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Carrier
46%
Late-arriving aircraft
25%
National Airspace System
18%
Extreme weather
10%

The largest share of delay minutes, 46%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 3,016 of the 6,509 delay minutes reported here. The split is drawn from 6,509 delay minutes reported on OO 5036.

Cancellations are rare at 0.84%, below the national 1.81% 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 routes

What a delay on this flight costs

7.9% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last close to two hours, which a normal layover absorbs.

The same number turns up on one other city pair in the data, including ORD to EAU (4), but none flew often enough under OO 5036 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to CYS to DEN only.

One caution: this is a thin sample. 358 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 5036

For a booking, read OO 5036 as 83.1% on time with 0.84% cancelled over 358 flights. Those are rates from the past twelve months, not a forecast for any particular day.

Where to go next

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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures