Flight number record
OO 4823
SkyWest Airlines · Dallas-Fort Worth to Grand Island
- Route
- DFW → GRI
- Departs
- 21:30
- Flights
- 360
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s OO 4823, 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 4823 sits in the middle of the pack with a B−. Close to three flights in four arrive on time by the DOT's definition, 2 points worse than the national rate of 77.6%. The late ones land about 2.3 hours behind schedule. That rests on 360 flights, with a median arrival 5 minutes early.
Key figures
On time
75.5%
Arrivals under 15 minutes late, of 339 completed flights
Avg delay
136 min
Across delayed arrivals only, not all flights
Cancelled
4.44%
National rate is 1.81%
1 hour+ late
12.4%
National rate is 8.1%
These figures cover 360 flights between July 2025 and June 2026. Beyond the headline rate, 12.4% 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 4823 flies
OO 4823 flies DFW to GRI without a single fixed slot. Its most common scheduled departure was 21:30, used on 155 of 360 flights, with 21:29 (69 flights) and 21:27 (37 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 21:30155 flights43.1%
- Departs 21:2969 flights19.2%
- Departs 21:2737 flights10.3%
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 21:30 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and OO 4823 runs 5 points better at 75.5%. 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 4823 next to DFW to GRI
Every carrier on DFW to GRI combined arrived on time 75.3% of the time across 712 flights, so OO 4823 is about level with it. Across its whole network SkyWest Airlines managed 79.0%, which this flight trails by 4 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 4823thin sample | 360 | 75.5% | 136 min | 4.44% | B− |
| All SkyWest Airlines on DFW–GRI | 712 | 75.3% | 106 min | 3.09% | B− |
| All carriers on DFW–GRI | 712 | 75.3% | 106 min | 3.09% | B− |
| SkyWest Airlines, whole network | 852,935 | 79.0% | 88 min | 1.77% | B |
Across the year
OO 4823 quarter by quarter
Quarter by quarter OO 4823 held fairly steady: 76.5% in Jul–Sep 2025, 76.2% in Oct–Dec 2025, 71.6% in Jan–Mar 2026 and 78.0% in Apr–Jun 2026. A spread of 6 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202592 flights76.5%
- Oct–Dec 202587 flights76.2%
- Jan–Mar 202690 flights71.6%
- Apr–Jun 202691 flights78.0%
Scale runs 65% to 85%. Rows with fewer than 30 flights show a dash.
By weekday, OO 4823 did best on Tuesday at 83.3% on time and worst on Saturday at 62.5%. Each day rests on about 51 flights, so a gap of 21 points is worth noticing but could still narrow in another year.
Delay causes
Why OO 4823 runs late
One category carries most of the weight here. Carrier accounts for 57% of the 11,000 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.
- 57%Carrier
- 23%Extreme weather
- 17%Late-arriving aircraft
- 3%National Airspace System
Extreme weather accounts for 23% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 3.7 times the usual weather exposure. The split is drawn from 11,253 delay minutes reported on OO 4823.
Cancellations run at 4.44%, against 1.81% nationally. That is roughly one flight in 25 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
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. 12.4% 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 562 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
Every one of the 360 flights under OO 4823 in the data flew DFW to GRI. 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. 360 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 4823
For a booking, the cancellation rate is the figure to plan around on OO 4823: 4.44% of its 360 scheduled flights did not operate. A late arrival costs about 2.3 hours, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- DFW to GRI, every carrier and departure
- GRI to DFW, the return direction
- SkyWest Airlines 4821 on the same route75.0%
- Dallas/Fort Worth International (DFW) 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
- How often a connection fails at the major US hubs
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.