Flight number record
OO 5831
SkyWest Airlines · Denver to Lincoln
- Route
- DEN → LNK
- Departs
- 09:40
- Flights
- 364
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 5831, 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 5831 earns an A. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 9 points better than the national rate of 77.3%. When something does go wrong the average delay runs about an hour. That rests on 364 flights, with a median arrival 9 minutes early.
Set against the rest of the country, OO 5831's record is 9 points better than the US average of 77.3%. That gap is worth roughly 88 fewer late arrivals for every thousand flights.
Key figures
On time
86.1%
Arrivals under 15 minutes late, of 359 completed flights
Avg delay
67 min
Across delayed arrivals only, not all flights
Cancelled
1.10%
National rate is 1.89%
1 hour+ late
5.0%
National rate is 8.3%
These figures cover 364 flights between September 2025 and August 2026. The median arrival is 9 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Schedule
When OO 5831 flies
OO 5831 flies DEN to LNK without a single fixed slot. Its most common scheduled departure was 09:40, used on 128 of 364 flights, with 09:35 (77 flights) and 09:50 (74 flights) next.
- Departs 09:40128 flights35.2%
- Departs 09:3577 flights21.2%
- Departs 09:5074 flights20.3%
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 09:40 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and OO 5831 runs 2 points better at 86.1%. 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 5831 next to DEN to LNK
Every carrier on DEN to LNK combined arrived on time 77.1% of the time across 1,585 flights, so OO 5831 is 9 points ahead of it. Across its whole network SkyWest Airlines managed 78.7%, which this flight beats by 7 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 5831thin sample | 364 | 86.1% | 67 min | 1.10% | A |
| All SkyWest Airlines on DEN–LNK | 1,585 | 77.1% | 82 min | 0.69% | B+ |
| All carriers on DEN–LNK | 1,585 | 77.1% | 82 min | 0.69% | B+ |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 5831 quarter by quarter
Quarter by quarter OO 5831 held fairly steady: 86.7% in Jul–Sep 2025, 88.9% in Oct–Dec 2025, 81.6% in Jan–Mar 2026, 89.0% in Apr–Jun 2026 and 83.6% in Jul–Sep 2026. A spread of 7 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202530 flights86.7%
- Oct–Dec 202592 flights88.9%
- Jan–Mar 202689 flights81.6%
- Apr–Jun 202691 flights89.0%
- Jul–Sep 202662 flights83.6%
Scale runs 75% to 95%.
By weekday, OO 5831 ranged from 82.4% on Monday to 90.4% on Tuesday. With about 52 flights behind each day, a spread of 8 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late OO 5831 runs when it is late
OO 5831 often beats the schedule: 126 of 359 completed flights, 35%, arrived 15 minutes or more early. The 50 late arrivals split 15 under half an hour, 17 between 30 and 60 minutes, and 18 an hour or more.
- 15+ min early126 flights35.1%
- Within 15 min183 flights51.0%
- 15–29 min late15 flights4.2%
- 30–59 min late17 flights4.7%
- 1–2 hours late13 flights3.6%
- 2+ hours late5 flights1.4%
Scale runs 0% to 100%.
Share of 359 completed flights by arrival against schedule.
6 of 42 late departures made up the time and arrived on time, 14% of them. 14 flights left on time and still arrived late.
The worst days
Worst days for OO 5831
The latest arrival of the period was on 19 December 2025, 5 hours 52 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. The five worst days are spread across December, January, October, April and February, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 19 December 2025 | 5 hours 52 minutes | National Airspace System |
| 4 January 2026 | 4 hours 17 minutes | Late-arriving aircraft |
| 16 October 2025 | 3 hours 13 minutes | Carrier |
| 11 April 2026 | 3 hours 1 minute | National Airspace System |
| 14 February 2026 | 2 hours 14 minutes | Carrier |
Delay causes
Why OO 5831 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 3,351 reported delay minutes.
- 42%Carrier
- 34%Late-arriving aircraft
- 20%National Airspace System
- 5%Extreme weather
The largest share of delay minutes, 42%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,395 of the 3,351 delay minutes reported here. The split is drawn from 3,351 delay minutes reported on OO 5831.
Cancellations sit at 1.10% against a national 1.89%, which is ordinary. Diversions add another 0.27%.
Connections and routes
What a delay on this flight costs
5.0% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
Every one of the 364 flights under OO 5831 in the data flew DEN to LNK. 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 5831
For a booking, OO 5831 has one of the better records a US domestic flight can show: 86.1% on time and 1.10% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- DEN to LNK, every carrier and departure
- LNK to DEN, the return direction
- SkyWest Airlines 5824 on the same route70.1%
- SkyWest Airlines 5622 on the same route62.9%
- SkyWest Airlines 5827 on the same route84.5%
- 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.