Flight number record

OO 5226

SkyWest Airlines · Denver to Casper

Route: DEN → CPR
Departs: 20:45
Flights: 275
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 5226, 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 5226 lands a B+, 4 points better than the national rate of 77.6%. Roughly one flight in five arrives 15 minutes late or worse, and those flights are late by about 2.3 hours on average. That is a workable record, not a spotless one. That rests on 275 flights, with a median arrival 11 minutes early.

Set against the rest of the country, OO 5226's record is 4 points better than the US average of 77.6%. That gap is worth roughly 42 fewer late arrivals for every thousand flights.

On time

81.8%

Arrivals under 15 minutes late, of 275 completed flights

Avg delay

139 min

Across delayed arrivals only, not all flights

Cancelled

0.00%

National rate is 1.81%

1 hour+ late

8.0%

National rate is 8.1%

These figures cover 275 flights between July 2025 and June 2026. Beyond the headline rate, 8.0% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Schedule

When OO 5226 flies

OO 5226 flies DEN to CPR without a single fixed slot. Its most common scheduled departure was 20:45, used on 59 of 275 flights, with 20:55 (58 flights) and 20:54 (37 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 20:4559 flights21.5%
Departs 20:5558 flights21.1%
Departs 20:5437 flights13.5%

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 20:45 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and OO 5226 runs 11 points better at 81.8%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

OO 5226 next to DEN to CPR

Every carrier on DEN to CPR combined arrived on time 77.4% of the time across 2,570 flights, so OO 5226 is 4 points ahead of it. Across its whole network SkyWest Airlines managed 79.0%, which this flight beats by 3 points.

OO 5226 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 5226thin sample	275	81.8%	139 min	0.00%	B+
All SkyWest Airlines on DEN–CPR	2,570	77.4%	79 min	1.01%	B
All carriers on DEN–CPR	2,570	77.4%	79 min	1.01%	B
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 5226 quarter by quarter

Quarter by quarter OO 5226 held fairly steady: 84.4% in Oct–Dec 2025, 83.1% in Jan–Mar 2026 and 76.7% 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 20256 flights—
Oct–Dec 202590 flights84.4%
Jan–Mar 202689 flights83.1%
Apr–Jun 202690 flights76.7%

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

By weekday, OO 5226 did best on Thursday at 87.2% on time and worst on Sunday at 75.0%. Each day rests on about 39 flights, so a gap of 12 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 5226 runs late

One category carries most of the weight here. Carrier accounts for 71% of the 6,962 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
71%
Late-arriving aircraft
19%
Extreme weather
6%
National Airspace System
4%

The largest share of delay minutes, 71%, 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 4,936 of the 6,962 delay minutes reported here. The split is drawn from 6,962 delay minutes reported on OO 5226.

Cancellations are rare at 0.00%, below the national 1.81% and low enough to earn the plus on the grade. Almost no flights are called off; the risk here is arriving late, not not arriving.

Connections and routes

What a delay on this flight costs

8.0% 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 about 2.3 hours, which a normal layover absorbs.

The same number turns up on three other city pairs in the data, including IAH to MAF (42), BOI to DEN (32) and IAH to TUL (1), but none flew often enough under OO 5226 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DEN to CPR only.

One caution: this is a thin sample. 275 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 5226

For a booking, read OO 5226 as 81.8% on time with 0.00% cancelled over 275 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