Flight number record

OO 5428

SkyWest Airlines · Denver to Lubbock

Route: DEN → LBB
Departs: 19:05
Flights: 302
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 5428, 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 5428 sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 8 points worse than the national rate of 77.6%. The late ones land close to two hours behind schedule. That rests on 302 flights, with a median arrival 5 minutes early.

The national on-time rate over the same period is 77.6%, so OO 5428 runs 8 points behind the country as a whole. Across a thousand flights that is about 77 extra late arrivals.

On time

69.9%

Arrivals under 15 minutes late, of 292 completed flights

Avg delay

110 min

Across delayed arrivals only, not all flights

Cancelled

2.32%

National rate is 1.81%

1 hour+ late

14.0%

National rate is 8.1%

These figures cover 302 flights between July 2025 and June 2026. Beyond the headline rate, 14.0% 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 5428 flies

OO 5428 flies DEN to LBB without a single fixed slot. Its most common scheduled departure was 19:05, used on 97 of 302 flights, with 19:07 (49 flights) and 19:14 (34 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 19:0597 flights32.1%
Departs 19:0749 flights16.2%
Departs 19:1434 flights11.3%

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 19:05 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and OO 5428 runs level with that at 69.9%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

OO 5428 next to DEN to LBB

Every carrier on DEN to LBB combined arrived on time 71.9% of the time across 977 flights, so OO 5428 is 2 points behind it. SkyWest flew 707 flights on the same city pair under all its flight numbers, including this one, and those ran 73.7% on time. Across its whole network SkyWest Airlines managed 79.0%, which this flight trails by 9 points.

OO 5428 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 5428thin sample	302	69.9%	110 min	2.32%	C
All SkyWest Airlines on DEN–LBB	707	73.7%	102 min	1.56%	C
All carriers on DEN–LBB	977	71.9%	93 min	1.54%	C
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 5428 quarter by quarter

OO 5428 did not run the same all year. Its best quarter was Oct–Dec 2025 at 82.7% on time and its weakest Jul–Sep 2025 at 58.0%, a swing of 25 points on roughly 76 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 202586 flights58.0%
Oct–Dec 202582 flights82.7%
Jan–Mar 202657 flights72.7%
Apr–Jun 202677 flights66.7%

Scale runs 50% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, OO 5428 did best on Tuesday at 81.2% on time and worst on Monday at 66.0%. Each day rests on about 43 flights, so a gap of 15 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 5428 runs late

Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 9,715 reported delay minutes.

Late-arriving aircraft
41%
Carrier
39%
National Airspace System
18%
Extreme weather
2%

41% 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 9,715 reported delay minutes here, that single category outweighs weather by 24 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 9,715 delay minutes reported on OO 5428.

Cancellations sit at 2.32% against a national 1.81%, which is ordinary. Diversions add another 0.99%.

Connections and routes

What a delay on this flight costs

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 14.0% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.

The same number turns up on four other city pairs in the data, including ORD to BUF (24), TVC to ORD (5) and ORD to ORF (4), but none flew often enough under OO 5428 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DEN to LBB only.

One caution: this is a thin sample. 302 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 5428

For a booking, OO 5428 is a flight to put a long connection behind. 14.0% of its completed flights arrived an hour or more late, which a short layover will not absorb. If the onward flight is on a separate ticket, the risk sits with you.

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