Flight number record

OO 5791

SkyWest Airlines · Lubbock to Denver

Route: LBB → DEN
Departs: 08:00
Flights: 365
Period: September 2025 to August 2026

Historical statistics for September 2025 to August 2026, not live status. For today’s OO 5791, 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 5791 lands a B, 7 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by about 2.6 hours on average. That rests on 365 flights, with a median arrival 13 minutes early.

Set against the rest of the country, OO 5791's record is 7 points better than the US average of 77.3%. That gap is worth roughly 66 fewer late arrivals for every thousand flights.

On time

83.9%

Arrivals under 15 minutes late, of 361 completed flights

Avg delay

159 min

Across delayed arrivals only, not all flights

Cancelled

1.10%

National rate is 1.89%

1 hour+ late

10.2%

National rate is 8.3%

These figures cover 365 flights between September 2025 and August 2026. Beyond the headline rate, 10.2% of arrivals land a full hour or more behind schedule, against 8.3% nationally.

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Schedule

When OO 5791 flies

OO 5791 is scheduled to leave Lubbock (LBB) at 08:00 local time and reach Denver (DEN) at 08:47. That slot held for 329 of the 365 scheduled departures in the data, so the figures below describe one steady operation rather than a number that moved around the clock.

Departs 08:00329 flights90.1%

Scale runs 0% to 100%.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 08:00 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and OO 5791 runs level with that at 83.9%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

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Against the route

OO 5791 next to LBB to DEN

Every carrier on LBB to DEN combined arrived on time 77.1% of the time across 983 flights, so OO 5791 is 7 points ahead of it. SkyWest flew 701 flights on the same city pair under all its flight numbers, including this one, and those ran 71.8% on time. Across its whole network SkyWest Airlines managed 78.7%, which this flight beats by 5 points.

OO 5791 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 5791	365	83.9%	159 min	1.10%	B
All SkyWest Airlines on LBB–DEN	701	71.8%	98 min	1.57%	C
All carriers on LBB–DEN	983	77.1%	95 min	1.53%	B
SkyWest Airlines, whole network	855,406	78.7%	88 min	1.79%	B

Across the year

OO 5791 quarter by quarter

Quarter by quarter OO 5791 held fairly steady: 90.0% in Jul–Sep 2025, 85.9% in Oct–Dec 2025, 83.7% in Jan–Mar 2026, 82.4% in Apr–Jun 2026 and 80.6% in Jul–Sep 2026. A spread of 9 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202530 flights90.0%
Oct–Dec 202592 flights85.9%
Jan–Mar 202690 flights83.7%
Apr–Jun 202691 flights82.4%
Jul–Sep 202662 flights80.6%

Scale runs 70% to 95%.

By weekday, OO 5791 did best on Thursday at 90.4% on time and worst on Saturday at 72.5%. Each day rests on about 52 flights, so a gap of 18 points is worth noticing but could still narrow in another year.

Arrival by arrival

How late OO 5791 runs when it is late

OO 5791 often beats the schedule: 169 of 361 completed flights, 47%, arrived 15 minutes or more early. When OO 5791 is late it tends to be very late: 37 of its 58 late arrivals were an hour or more behind, and 21 were two hours or more.

15+ min early169 flights46.8%
Within 15 min134 flights37.1%
15–29 min late11 flights3.0%
30–59 min late10 flights2.8%
1–2 hours late16 flights4.4%
2+ hours late21 flights5.8%

Scale runs 0% to 100%.

Share of 361 completed flights by arrival against schedule.

Time lost at the gate mostly stays lost. Of 49 departures that left 15 minutes late or more, only 5 made it up before arrival. 14 flights left on time and still arrived late.

The worst days

Worst days for OO 5791

The latest arrival of the period was on 16 March 2026, 10 hours 53 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.

The latest arrivals of OO 5791 in the period
Date	Arrived late by	Largest filed cause
16 March 2026	10 hours 53 minutes	Carrier
11 April 2026	9 hours 50 minutes	Late-arriving aircraft
8 January 2026	8 hours 36 minutes	Carrier
29 June 2026	8 hours 32 minutes	Carrier
23 February 2026	7 hours 59 minutes	Late-arriving aircraft

Delay causes

Why OO 5791 runs late

Carrier accounts for 77% of the 9,191 delay minutes carriers reported here, and the remaining four split what is left.

Carrier
77%
Late-arriving aircraft
20%
National Airspace System
3%

The largest share of delay minutes, 77%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 7,083 of the 9,191 delay minutes reported here. The split is drawn from 9,191 delay minutes reported on OO 5791.

Cancellations sit at 1.10% against a national 1.89%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

10.2% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.

Every one of the 365 flights under OO 5791 in the data flew LBB 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. 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 5791

For a booking, read OO 5791 as 83.9% on time with 1.10% 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, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures