Flight number record
OO 5428
SkyWest Airlines · Denver to Lubbock
- Route
- DEN → LBB
- Departs
- 19:05
- Flights
- 295
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 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, 7 points worse than the national rate of 77.3%. The late ones land close to two hours behind schedule. That rests on 295 flights, with a median arrival 4 minutes early.
The national on-time rate over the same period is 77.3%, so OO 5428 runs 7 points behind the country as a whole. Across a thousand flights that is about 73 extra late arrivals.
Key figures
On time
70.0%
Arrivals under 15 minutes late, of 287 completed flights
Avg delay
107 min
Across delayed arrivals only, not all flights
Cancelled
2.03%
National rate is 1.89%
1 hour+ late
12.9%
National rate is 8.3%
These figures cover 295 flights between September 2025 and August 2026. Beyond the headline rate, 12.9% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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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 295 flights, with 19:14 (69 flights) and 19:19 (31 flights) next.
- Departs 19:0597 flights32.9%
- Departs 19:1469 flights23.4%
- Departs 19:1931 flights10.5%
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 19:05 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and OO 5428 runs 2 points better at 70.0%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
OO 5428 next to DEN to LBB
Every carrier on DEN to LBB combined arrived on time 71.4% of the time across 980 flights, so OO 5428 is about level with it. SkyWest flew 700 flights on the same city pair under all its flight numbers, including this one, and those ran 75.8% on time. Across its whole network SkyWest Airlines managed 78.7%, which this flight trails by 9 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 5428thin sample | 295 | 70.0% | 107 min | 2.03% | C |
| All SkyWest Airlines on DEN–LBB | 700 | 75.8% | 101 min | 1.43% | B |
| All carriers on DEN–LBB | 980 | 71.4% | 89 min | 1.63% | C |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | 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 2026 at 50.0%, a swing of 33 points on roughly 74 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 202526 flights—
- Oct–Dec 202582 flights82.7%
- Jan–Mar 202657 flights72.7%
- Apr–Jun 202677 flights66.7%
- Jul–Sep 202653 flights50.0%
Scale runs 40% to 90%. Rows with fewer than 30 flights show a dash.
By weekday, OO 5428 did best on Tuesday at 77.6% on time and worst on Wednesday at 62.5%. Each day rests on about 42 flights, so a gap of 15 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 5428 runs when it is late
OO 5428 often beats the schedule: 87 of 287 completed flights, 30%, arrived 15 minutes or more early. The 86 late arrivals split 28 under half an hour, 21 between 30 and 60 minutes, and 37 an hour or more.
- 15+ min early87 flights30.3%
- Within 15 min114 flights39.7%
- 15–29 min late28 flights9.8%
- 30–59 min late21 flights7.3%
- 1–2 hours late20 flights7.0%
- 2+ hours late17 flights5.9%
Scale runs 0% to 100%.
Share of 287 completed flights by arrival against schedule.
12 of 80 late departures made up the time and arrived on time, 15% of them. In the other direction, 18 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at LBB.
The worst days
Worst days for OO 5428
The latest arrival of the period was on 22 February 2026, 17 hours 39 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.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 22 February 2026 | 17 hours 39 minutes | Carrier |
| 5 October 2025 | 14 hours 41 minutes | Late-arriving aircraft |
| 3 May 2026 | 14 hours 7 minutes | Carrier |
| 30 June 2026 | 14 hours 2 minutes | Late-arriving aircraft |
| 28 December 2025 | 6 hours 34 minutes | Carrier |
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 9,191 reported delay minutes.
- 38%Carrier
- 38%Late-arriving aircraft
- 22%National Airspace System
- 3%Extreme weather
38% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 9,191 reported delay minutes here, that single category outweighs weather by 13 to one. The split is drawn from 9,191 delay minutes reported on OO 5428.
Cancellations sit at 2.03% against a national 1.89%, which is ordinary. Diversions add another 0.68%.
Connections and routes
What a delay on this flight costs
12.9% 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.
The same number turns up on four other city pairs in the data, including ORD to BUF (24), ORD to CMH (7) and TVC to ORD (5), 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. 295 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. 12.9% 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.
Related
Where to go next
- DEN to LBB, every carrier and departure
- LBB to DEN, the return direction
- SkyWest Airlines 5421 on the same route79.2%
- Denver International (DEN) delay statistics
- SkyWest Airlines on-time record
- Every SkyWest Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
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 ; recomputed monthly. How this data is collected.