Flight number record

OO 4727

SkyWest Airlines · Denver to Oklahoma City

Route: DEN → OKC
Departs: 20:40
Flights: 350
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 4727, 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 4727 sits in the middle of the pack with a C. Close to three flights in four arrive on time by the DOT's definition, 4 points worse than the national rate of 77.6%. The late ones land a little over an hour behind schedule. That rests on 350 flights, with a median arrival 7 minutes early.

The national on-time rate over the same period is 77.6%, so OO 4727 runs 4 points behind the country as a whole. Across a thousand flights that is about 41 extra late arrivals.

On time

73.5%

Arrivals under 15 minutes late, of 344 completed flights

Avg delay

70 min

Across delayed arrivals only, not all flights

Cancelled

1.14%

National rate is 1.81%

1 hour+ late

11.0%

National rate is 8.1%

These figures cover 350 flights between July 2025 and June 2026. Beyond the headline rate, 11.0% 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 4727 flies

OO 4727 flies DEN to OKC without a single fixed slot. Its most common scheduled departure was 20:40, used on 70 of 350 flights, with 20:30 (52 flights) and 20:20 (37 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 20:4070 flights20.0%
Departs 20:3052 flights14.9%
Departs 20:2037 flights10.6%

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 20:40 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and OO 4727 runs 3 points better at 73.5%. 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 4727 next to DEN to OKC

Every carrier on DEN to OKC combined arrived on time 77.0% of the time across 3,164 flights, so OO 4727 is 4 points behind it. SkyWest flew 1,256 flights on the same city pair under all its flight numbers, including this one, and those ran 82.4% on time. Across its whole network SkyWest Airlines managed 79.0%, which this flight trails by 6 points.

OO 4727 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 4727thin sample	350	73.5%	70 min	1.14%	C
All SkyWest Airlines on DEN–OKC	1,256	82.4%	68 min	0.48%	B+
All carriers on DEN–OKC	3,164	77.0%	61 min	0.66%	B+
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 4727 quarter by quarter

OO 4727 did not run the same all year. Its best quarter was Apr–Jun 2026 at 82.4% on time and its weakest Jul–Sep 2025 at 62.6%, a swing of 20 points on roughly 88 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 202592 flights62.6%
Oct–Dec 202591 flights73.6%
Jan–Mar 202690 flights77.3%
Apr–Jun 202677 flights82.4%

Scale runs 55% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, OO 4727 did best on Saturday at 81.8% on time and worst on Sunday at 68.6%. Each day rests on about 50 flights, so a gap of 13 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 4727 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 6,330 reported delay minutes.

Carrier
38%
National Airspace System
34%
Late-arriving aircraft
16%
Extreme weather
13%

Extreme weather accounts for 13% 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 quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.1 times the usual weather exposure. The split is drawn from 6,330 delay minutes reported on OO 4727.

Cancellations sit at 1.14% against a national 1.81%, which is ordinary. Diversions add another 0.57%.

Connections and routes

What a delay on this flight costs

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 11.0% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.

The same number turns up on three other city pairs in the data, including ORD to TVC (1), DEN to XNA (1) and SFO to MSP (1), but none flew often enough under OO 4727 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DEN to OKC only.

One caution: this is a thin sample. 350 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 4727

For a booking, read OO 4727 as 73.5% on time with 1.14% cancelled over 350 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