Flight number record

OO 5602

SkyWest Airlines · Gunnison to Denver

Route: GUC → DEN
Departs: 07:00
Flights: 328
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 5602, 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 5602 lands a B, 6 points better than the national rate of 77.6%. About one flight in six 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 328 flights, with a median arrival 11 minutes early.

Set against the rest of the country, OO 5602's record is 6 points better than the US average of 77.6%. That gap is worth roughly 57 fewer late arrivals for every thousand flights.

On time

83.3%

Arrivals under 15 minutes late, of 324 completed flights

Avg delay

97 min

Across delayed arrivals only, not all flights

Cancelled

1.22%

National rate is 1.81%

1 hour+ late

8.3%

National rate is 8.1%

These figures cover 328 flights between July 2025 and June 2026. Beyond the headline rate, 8.3% 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 5602 flies

OO 5602 flies GUC to DEN without a single fixed slot. Its most common scheduled departure was 07:00, used on 111 of 328 flights, with 07:30 (49 flights) and 07:15 (42 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 07:00111 flights33.8%
Departs 07:3049 flights14.9%
Departs 07:1542 flights12.8%

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 07:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and OO 5602 runs 6 points worse at 83.3%. 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 5602 next to GUC to DEN

Every carrier on GUC to DEN combined arrived on time 80.6% of the time across 995 flights, so OO 5602 is 3 points ahead of it. Across its whole network SkyWest Airlines managed 79.0%, which this flight beats by 4 points.

OO 5602 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 5602thin sample	328	83.3%	97 min	1.22%	B
All SkyWest Airlines on GUC–DEN	995	80.6%	85 min	0.90%	B+
All carriers on GUC–DEN	995	80.6%	85 min	0.90%	B+
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 5602 quarter by quarter

OO 5602 did not run the same all year. Its best quarter was Jan–Mar 2026 at 93.1% on time and its weakest Jul–Sep 2025 at 64.8%, a swing of 28 points on roughly 82 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 flights64.8%
Oct–Dec 202555 flights83.6%
Jan–Mar 202690 flights93.1%
Apr–Jun 202691 flights92.3%

Scale runs 55% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, OO 5602 ranged from 77.8% on Saturday to 85.1% on Wednesday. With about 47 flights behind each day, a spread of 7 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why OO 5602 runs late

One category carries most of the weight here. Carrier accounts for 69% of the 5,257 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
69%
National Airspace System
19%
Late-arriving aircraft
7%
Extreme weather
4%
Security
0%

The largest share of delay minutes, 69%, 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 3,631 of the 5,257 delay minutes reported here. The split is drawn from 5,257 delay minutes reported on OO 5602.

Cancellations sit at 1.22% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

8.3% 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.

The same number turns up on two other city pairs in the data, including LAX to PHX (8) and CHA to ORD (1), but none flew often enough under OO 5602 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to GUC to DEN only.

One caution: this is a thin sample. 328 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 5602

For a booking, read OO 5602 as 83.3% on time with 1.22% cancelled over 328 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