Flight number record
OO 5043
SkyWest Airlines · Lafayette to Chicago
- Route
- LAF → ORD
- Departs
- 06:10
- Flights
- 363
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 5043, 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 5043 lands a B, 2 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by about 2.7 hours on average. That rests on 363 flights, with a median arrival 11 minutes early.
Key figures
On time
78.8%
Arrivals under 15 minutes late, of 354 completed flights
Avg delay
163 min
Across delayed arrivals only, not all flights
Cancelled
2.20%
National rate is 1.89%
1 hour+ late
13.0%
National rate is 8.3%
These figures cover 363 flights between September 2025 and August 2026. Beyond the headline rate, 13.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When OO 5043 flies
OO 5043 flies LAF to ORD without a single fixed slot. Its most common scheduled departure was 06:10, used on 176 of 363 flights, with 06:30 (100 flights) next.
- Departs 06:10176 flights48.5%
- Departs 06:30100 flights27.5%
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 06:10 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and OO 5043 runs 11 points worse at 78.8%. 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 5043 next to LAF to ORD
Every carrier on LAF to ORD combined arrived on time 73.9% of the time across 573 flights, so OO 5043 is 5 points ahead of it. Across its whole network SkyWest Airlines managed 78.7%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 5043thin sample | 363 | 78.8% | 163 min | 2.20% | B |
| All SkyWest Airlines on LAF–ORD | 573 | 73.9% | 143 min | 3.32% | C− |
| All carriers on LAF–ORD | 573 | 73.9% | 143 min | 3.32% | C− |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 5043 quarter by quarter
OO 5043 did not run the same all year. Its best quarter was Jul–Sep 2025 at 86.7% on time and its weakest Jan–Mar 2026 at 67.4%, a swing of 19 points on roughly 73 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 202530 flights86.7%
- Oct–Dec 202592 flights83.3%
- Jan–Mar 202688 flights67.4%
- Apr–Jun 202691 flights78.4%
- Jul–Sep 202662 flights85.0%
Scale runs 60% to 90%.
By weekday, OO 5043 did best on Wednesday at 88.0% on time and worst on Monday at 69.8%. 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 5043 runs when it is late
OO 5043 often beats the schedule: 153 of 354 completed flights, 43%, arrived 15 minutes or more early. When OO 5043 is late it tends to be very late: 46 of its 75 late arrivals were an hour or more behind, and 36 were two hours or more.
- 15+ min early153 flights43.2%
- Within 15 min126 flights35.6%
- 15–29 min late15 flights4.2%
- 30–59 min late14 flights4.0%
- 1–2 hours late10 flights2.8%
- 2+ hours late36 flights10.2%
Scale runs 0% to 100%.
Share of 354 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 59 departures that left 15 minutes late or more, only 2 made it up before arrival. 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 ORD.
The worst days
Worst days for OO 5043
The latest arrival of the period was on 5 March 2026, 14 hours 20 minutes behind schedule; most of its delay minutes were filed as extreme weather. On three of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 5 March 2026 | 14 hours 20 minutes | Extreme weather |
| 30 November 2025 | 12 hours 8 minutes | Carrier |
| 19 April 2026 | 10 hours 42 minutes | Carrier |
| 26 January 2026 | 8 hours 56 minutes | Carrier |
| 21 February 2026 | 7 hours 51 minutes | Late-arriving aircraft |
Delay causes
Why OO 5043 runs late
Carrier accounts for 54% of the 12,000 delay minutes carriers reported here, and the remaining four split what is left.
- 54%Carrier
- 23%Late-arriving aircraft
- 12%Extreme weather
- 11%National Airspace System
Extreme weather accounts for 12% 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 2.1 times the usual weather exposure. The split is drawn from 12,244 delay minutes reported on OO 5043.
Cancellations sit at 2.20% against a national 1.89%, which is ordinary. Diversions add another 0.28%.
Connections and routes
What a delay on this flight costs
13.0% 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 363 flights under OO 5043 in the data flew LAF to ORD. 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. 363 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 5043
For a booking, OO 5043 is a flight to put a long connection behind. 13.0% 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.
Related
Where to go next
- Chicago O'Hare International (ORD) 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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.