Flight number record

OO 5310

SkyWest Airlines · Denver to Santa Fe

Route: DEN → SAF
Departs: 11:20
Flights: 365
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 5310, 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 5310 lands a B+, level with the national rate of 77.6%. Roughly one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That is a workable record, not a spotless one. That rests on 365 flights, with a median arrival 8 minutes early.

On time

78.1%

Arrivals under 15 minutes late, of 365 completed flights

Avg delay

69 min

Across delayed arrivals only, not all flights

Cancelled

0.00%

National rate is 1.81%

1 hour+ late

7.7%

National rate is 8.1%

These figures cover 365 flights between July 2025 and June 2026. The median arrival is 8 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 5310 flies

OO 5310 flies DEN to SAF without a single fixed slot. Its most common scheduled departure was 11:20, used on 226 of 365 flights, with 11:15 (58 flights) and 11:28 (41 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 11:20226 flights61.9%
Departs 11:1558 flights15.9%
Departs 11:2841 flights11.2%

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 11:20 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and OO 5310 runs level with that at 78.1%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

OO 5310 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 5310 is 4 points behind it. Across its whole network SkyWest Airlines managed 79.0%, close to this flight's figure.

OO 5310 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 5310	365	78.1%	69 min	0.00%	B+
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 5310 quarter by quarter

OO 5310 did not run the same all year. Its best quarter was Oct–Dec 2025 at 82.6% on time and its weakest Jan–Mar 2026 at 66.7%, a swing of 16 points on roughly 91 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 flights81.5%
Oct–Dec 202592 flights82.6%
Jan–Mar 202690 flights66.7%
Apr–Jun 202691 flights81.3%

Scale runs 60% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, OO 5310 did best on Saturday at 88.5% on time and worst on Sunday at 65.4%. Each day rests on about 52 flights, so a gap of 23 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 5310 runs late

One category carries most of the weight here. Carrier accounts for 44% of the 5,495 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
44%
Late-arriving aircraft
31%
National Airspace System
13%
Extreme weather
12%

Extreme weather accounts for 12% 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 1.9 times the usual weather exposure. The split is drawn from 5,495 delay minutes reported on OO 5310.

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

7.7% 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 a little over an hour, which a normal layover absorbs.

Every one of the 365 flights under OO 5310 in the data flew DEN to SAF. The number was not reused on any other city pair, which makes this a clean record of one route.

One caution: this is a thin sample. 365 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 5310

For a booking, read OO 5310 as 78.1% on time with 0.00% cancelled over 365 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