Flight number record

OO 4731

SkyWest Airlines · Denver to Santa Fe

Route: DEN → SAF
Departs: 08:05
Flights: 282
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 4731, 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 4731 earns an A. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 11 points better than the national rate of 77.6%. When something does go wrong the average delay runs a little over an hour. That rests on 282 flights, with a median arrival 11 minutes early.

Set against the rest of the country, OO 4731's record is 11 points better than the US average of 77.6%. That gap is worth roughly 113 fewer late arrivals for every thousand flights.

On time

88.9%

Arrivals under 15 minutes late, of 279 completed flights

Avg delay

69 min

Across delayed arrivals only, not all flights

Cancelled

1.06%

National rate is 1.81%

1 hour+ late

3.6%

National rate is 8.1%

These figures cover 282 flights between July 2025 and June 2026. The median arrival is 11 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 4731 flies

OO 4731 flies DEN to SAF without a single fixed slot. Its most common scheduled departure was 08:05, used on 140 of 282 flights, with 08:01 (53 flights) and 08:25 (41 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 08:05140 flights49.6%
Departs 08:0153 flights18.8%
Departs 08:2541 flights14.5%

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 08:05 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and OO 4731 runs 5 points better at 88.9%. 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 4731 next to DEN to SAF

Every carrier on DEN to SAF combined arrived on time 81.7% of the time across 1,621 flights, so OO 4731 is 7 points ahead of it. Across its whole network SkyWest Airlines managed 79.0%, which this flight beats by 10 points.

OO 4731 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 4731thin sample	282	88.9%	69 min	1.06%	A
All SkyWest Airlines on DEN–SAF	1,621	81.7%	75 min	1.11%	B
All carriers on DEN–SAF	1,621	81.7%	75 min	1.11%	B
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 4731 quarter by quarter

OO 4731 did not run the same all year. Its best quarter was Apr–Jun 2026 at 95.1% on time and its weakest Oct–Dec 2025 at 83.9%, a swing of 11 points on roughly 71 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 202591 flights91.2%
Oct–Dec 202564 flights83.9%
Jan–Mar 202686 flights87.1%
Apr–Jun 202641 flights95.1%

Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, OO 4731 ranged from 82.9% on Sunday to 94.7% on Tuesday. With about 40 flights behind each day, a spread of 12 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why OO 4731 runs late

One category carries most of the weight here. Carrier accounts for 72% of the 2,131 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
72%
Late-arriving aircraft
22%
National Airspace System
6%
Extreme weather
1%

The largest share of delay minutes, 72%, 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 1,525 of the 2,131 delay minutes reported here. The split is drawn from 2,131 delay minutes reported on OO 4731.

Cancellations sit at 1.06% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 3.6% land an hour or more behind schedule, against 8.1% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.

The same number turns up on seven other city pairs in the data, including ATW to ORD (29), ORD to RAP (21) and BUF to ORD (16), but none flew often enough under OO 4731 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DEN to SAF only.

One caution: this is a thin sample. 282 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 4731

For a booking, OO 4731 has one of the better records a US domestic flight can show: 88.9% on time and 1.06% cancelled. That is a base rate, not a promise about any single 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