Flight number record

OO 5878

SkyWest Airlines · Santa Fe to Denver

Route: SAF → DEN
Departs: 13:23
Flights: 364
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 5878, 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 5878 lands a B+, level with the national rate of 77.6%. Roughly one flight in four arrives 15 minutes late or worse, and those flights are late by an hour and a half on average. That is a workable record, not a spotless one. That rests on 364 flights, with a median arrival 10 minutes early.

On time

77.2%

Arrivals under 15 minutes late, of 359 completed flights

Avg delay

96 min

Across delayed arrivals only, not all flights

Cancelled

0.27%

National rate is 1.81%

1 hour+ late

8.4%

National rate is 8.1%

These figures cover 364 flights between July 2025 and June 2026. Beyond the headline rate, 8.4% 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 5878 flies

OO 5878 flies SAF to DEN without a single fixed slot. Its most common scheduled departure was 13:23, used on 101 of 364 flights, with 13:22 (60 flights) and 13:19 (53 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 13:23101 flights27.7%
Departs 13:2260 flights16.5%
Departs 13:1953 flights14.6%

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 13:23 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and OO 5878 runs level with that at 77.2%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

OO 5878 next to SAF to DEN

Every carrier on SAF to DEN combined arrived on time 78.5% of the time across 1,621 flights, so OO 5878 is about level with it. Across its whole network SkyWest Airlines managed 79.0%, which this flight trails by 2 points.

OO 5878 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 5878thin sample	364	77.2%	96 min	0.27%	B+
All SkyWest Airlines on SAF–DEN	1,621	78.5%	87 min	1.05%	B
All carriers on SAF–DEN	1,621	78.5%	87 min	1.05%	B
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 5878 quarter by quarter

OO 5878 did not run the same all year. Its best quarter was Apr–Jun 2026 at 84.3% on time and its weakest Jan–Mar 2026 at 66.3%, a swing of 18 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 flights75.6%
Oct–Dec 202591 flights82.4%
Jan–Mar 202690 flights66.3%
Apr–Jun 202691 flights84.3%

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

By weekday, OO 5878 did best on Saturday at 86.5% on time and worst on Monday at 70.6%. Each day rests on about 52 flights, so a gap of 16 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 5878 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 49% of the 7,849 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.

Late-arriving aircraft
49%
Carrier
33%
Extreme weather
9%
National Airspace System
9%

49% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 7,849 reported delay minutes here, that single category outweighs weather by 5 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 7,849 delay minutes reported on OO 5878.

Cancellations are rare at 0.27%, 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

8.4% 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 an hour and a half, which a normal layover absorbs.

Every one of the 364 flights under OO 5878 in the data flew SAF to DEN. 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. 364 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 5878

For a booking, read OO 5878 as 77.2% on time with 0.27% cancelled over 364 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