Flight number record
OO 5887
SkyWest Airlines · Chicago to South Bend
- Route
- ORD → SBN
- Departs
- 09:00
- Flights
- 256
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 5887, 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 5887 draws a C. About one flight in three arrives at least 15 minutes late, and the typical late arrival is a little over an hour behind schedule. Build slack into anything you connect to. That rests on 256 flights, with a median arrival 1 minute early.
The national on-time rate over the same period is 77.3%, so OO 5887 runs 11 points behind the country as a whole. Across a thousand flights that is about 112 extra late arrivals.
Key figures
On time
66.1%
Arrivals under 15 minutes late, of 251 completed flights
Avg delay
70 min
Across delayed arrivals only, not all flights
Cancelled
1.95%
National rate is 1.89%
1 hour+ late
12.7%
National rate is 8.3%
These figures cover 256 flights between September 2025 and August 2026. Beyond the headline rate, 12.7% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When OO 5887 flies
OO 5887 flies ORD to SBN without a single fixed slot. Its most common scheduled departure was 09:00, used on 120 of 256 flights, with 08:40 (42 flights) and 09:03 (36 flights) next.
- Departs 09:00120 flights46.9%
- Departs 08:4042 flights16.4%
- Departs 09:0336 flights14.1%
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 09:00 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and OO 5887 runs 18 points worse at 66.1%. 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 5887 next to ORD to SBN
Every carrier on ORD to SBN combined arrived on time 63.1% of the time across 2,789 flights, so OO 5887 is 3 points ahead of it. SkyWest flew 2,777 flights on the same city pair under all its flight numbers, including this one, and those ran 63.0% on time. Across its whole network SkyWest Airlines managed 78.7%, which this flight trails by 13 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 5887thin sample | 256 | 66.1% | 70 min | 1.95% | C |
| All SkyWest Airlines on ORD–SBN | 2,777 | 63.0% | 87 min | 4.39% | D− |
| All carriers on ORD–SBN | 2,789 | 63.1% | 87 min | 4.37% | D− |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 5887 quarter by quarter
OO 5887 did not run the same all year. Its best quarter was Jul–Sep 2026 at 75.4% on time and its weakest Jan–Mar 2026 at 60.5%, a swing of 15 points on roughly 85 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.
- Oct–Dec 202514 flights—
- Jan–Mar 202689 flights60.5%
- Apr–Jun 202691 flights64.4%
- Jul–Sep 202662 flights75.4%
Scale runs 50% to 80%. Rows with fewer than 30 flights show a dash.
By weekday, OO 5887 did best on Wednesday at 70.6% on time and worst on Friday at 52.8%. Each day rests on about 37 flights, so a gap of 18 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 5887 runs when it is late
The 85 late arrivals split 29 under half an hour, 24 between 30 and 60 minutes, and 32 an hour or more.
- 15+ min early57 flights22.7%
- Within 15 min109 flights43.4%
- 15–29 min late29 flights11.6%
- 30–59 min late24 flights9.6%
- 1–2 hours late19 flights7.6%
- 2+ hours late13 flights5.2%
Scale runs 0% to 100%.
Share of 251 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 5 made it up before arrival. In the other direction, 31 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 SBN.
The worst days
Worst days for OO 5887
The latest arrival of the period was on 11 March 2026, 7 hours 45 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). On three of the five worst days the largest share was filed as a late-arriving aircraft.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 11 March 2026 | 7 hours 45 minutes | Carrier |
| 14 January 2026 | 4 hours 44 minutes | Late-arriving aircraft |
| 12 June 2026 | 4 hours 27 minutes | Late-arriving aircraft |
| 17 April 2026 | 3 hours 38 minutes | Late-arriving aircraft |
| 9 June 2026 | 3 hours 14 minutes | Extreme weather |
Delay causes
Why OO 5887 runs late
Carrier accounts for 50% of the 5,951 delay minutes carriers reported here, and the remaining four split what is left.
- 50%Carrier
- 25%Late-arriving aircraft
- 16%National Airspace System
- 9%Extreme weather
The largest share of delay minutes, 50%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 2,970 of the 5,951 delay minutes reported here. The split is drawn from 5,951 delay minutes reported on OO 5887.
Cancellations sit at 1.95% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
12.7% 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 two other city pairs in the data, including PIA to ORD (55) and IDA to DEN (2), but none flew often enough under OO 5887 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to ORD to SBN only.
One caution: this is a thin sample. 256 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 5887
For a booking, OO 5887 is a flight to put a long connection behind. 12.7% 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
- ORD to SBN, every carrier and departure
- SBN to ORD, the return direction
- SkyWest Airlines 5499 on the same route58.5%
- SkyWest Airlines 5274 on the same route67.0%
- SkyWest Airlines 5505 on the same route62.3%
- SkyWest Airlines 4791 on the same route65.6%
- SkyWest Airlines 4636 on the same route52.4%
- 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.