Flight number record

OO 5489

SkyWest Airlines · South Bend to Chicago

Route: SBN → ORD
Departs: 13:11
Flights: 323
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 5489, 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 5489 draws a D−. Roughly one flight in three arrives at least 15 minutes late, and the typical late arrival is an hour and a half behind schedule. Build slack into anything you connect to. That rests on 323 flights, with a median arrival 7 minutes late.

The national on-time rate over the same period is 77.6%, so OO 5489 runs 15 points behind the country as a whole. Across a thousand flights that is about 153 extra late arrivals.

On time

62.3%

Arrivals under 15 minutes late, of 310 completed flights

Avg delay

92 min

Across delayed arrivals only, not all flights

Cancelled

4.02%

National rate is 1.81%

1 hour+ late

16.8%

National rate is 8.1%

These figures cover 323 flights between July 2025 and June 2026. Beyond the headline rate, 16.8% 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 5489 flies

OO 5489 flies SBN to ORD without a single fixed slot. Its most common scheduled departure was 13:11, used on 67 of 323 flights, with 13:06 (53 flights) and 13:08 (53 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 13:1167 flights20.7%
Departs 13:0653 flights16.4%
Departs 13:0853 flights16.4%

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 13:11 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and OO 5489 runs 17 points worse at 62.3%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

OO 5489 next to SBN to ORD

Every carrier on SBN to ORD combined arrived on time 65.0% of the time across 2,705 flights, so OO 5489 is 3 points behind it. SkyWest flew 2,692 flights on the same city pair under all its flight numbers, including this one, and those ran 65.1% on time. Across its whole network SkyWest Airlines managed 79.0%, which this flight trails by 17 points.

OO 5489 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 5489thin sample	323	62.3%	92 min	4.02%	D−
All SkyWest Airlines on SBN–ORD	2,692	65.1%	95 min	3.79%	C−
All carriers on SBN–ORD	2,705	65.0%	95 min	3.81%	C−
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 5489 quarter by quarter

OO 5489 did not run the same all year. Its best quarter was Jul–Sep 2025 at 69.7% on time and its weakest Oct–Dec 2025 at 55.7%, a swing of 14 points on roughly 81 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 202592 flights69.7%
Oct–Dec 202591 flights55.7%
Jan–Mar 202690 flights64.3%
Apr–Jun 202650 flights57.1%

Scale runs 45% to 75%. Rows with fewer than 30 flights show a dash.

By weekday, OO 5489 did best on Tuesday at 74.5% on time and worst on Wednesday at 52.2%. Each day rests on about 46 flights, so a gap of 22 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 5489 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 56% 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.

Late-arriving aircraft
56%
National Airspace System
24%
Carrier
17%
Extreme weather
3%

56% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 11,000 reported delay minutes here, that single category outweighs weather by 20 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 10,736 delay minutes reported on OO 5489.

Cancellations run at 4.02%, against 1.81% nationally. That is about 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. 16.8% 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 same number turns up on two other city pairs in the data, including MCI to LAX (41) and GSP to ORD (1), but none flew often enough under OO 5489 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to SBN to ORD only.

One caution: this is a thin sample. 323 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 5489

For a booking, the cancellation rate is the figure to plan around on OO 5489: 4.02% of its 323 scheduled flights did not operate. A late arrival costs an hour and a half, but a cancellation costs the day, so leave a later option open.

Where to go next

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.

Key figures