Flight number record

OO 5103

SkyWest Airlines · Chicago to Joplin

Route: ORD → JLN
Departs: 21:50
Flights: 287
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 5103, 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 5103 sits in the middle of the pack with a C−. About seven flights in ten arrive on time by the DOT's definition, 7 points worse than the national rate of 77.6%. The late ones land close to two hours behind schedule. That rests on 287 flights, with a median arrival 3 minutes early.

The national on-time rate over the same period is 77.6%, so OO 5103 runs 7 points behind the country as a whole. Across a thousand flights that is about 68 extra late arrivals.

On time

70.8%

Arrivals under 15 minutes late, of 274 completed flights

Avg delay

114 min

Across delayed arrivals only, not all flights

Cancelled

3.48%

National rate is 1.81%

1 hour+ late

15.3%

National rate is 8.1%

These figures cover 287 flights between July 2025 and June 2026. Beyond the headline rate, 15.3% 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 5103 flies

OO 5103 flies ORD to JLN without a single fixed slot. Its most common scheduled departure was 21:50, used on 86 of 287 flights, with 21:35 (47 flights) and 21:38 (36 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 21:5086 flights30.0%
Departs 21:3547 flights16.4%
Departs 21:3836 flights12.5%

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 21:50 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and OO 5103 runs level with that at 70.8%. 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 5103 next to ORD to JLN

Every carrier on ORD to JLN combined arrived on time 68.4% of the time across 365 flights, so OO 5103 is 2 points ahead of it. Across its whole network SkyWest Airlines managed 79.0%, which this flight trails by 8 points.

OO 5103 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 5103thin sample	287	70.8%	114 min	3.48%	C−
All SkyWest Airlines on ORD–JLN	365	68.4%	103 min	3.01%	C−
All carriers on ORD–JLN	365	68.4%	103 min	3.01%	C−
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 5103 quarter by quarter

Quarter by quarter OO 5103 held fairly steady: 70.5% in Jul–Sep 2025, 68.7% in Oct–Dec 2025, 70.8% in Jan–Mar 2026 and 74.5% 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 flights70.5%
Oct–Dec 202589 flights68.7%
Jan–Mar 202650 flights70.8%
Apr–Jun 202656 flights74.5%

Scale runs 60% to 80%. Rows with fewer than 30 flights show a dash.

By weekday, OO 5103 did best on Friday at 79.5% on time and worst on Saturday at 67.5%. Each day rests on about 41 flights, so a gap of 12 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 5103 runs late

One category carries most of the weight here. Carrier accounts for 50% of the 9,076 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.

Carrier
50%
Late-arriving aircraft
35%
National Airspace System
12%
Extreme weather
2%

35% 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 9,076 reported delay minutes here, that single category outweighs weather by 15 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 9,076 delay minutes reported on OO 5103.

Cancellations run at 3.48%, against 1.81% nationally. That is about one flight in 30 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. 15.3% 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 five other city pairs in the data, including JLN to DEN (37), IAH to CHA (31) and PAH to ORD (24), but none flew often enough under OO 5103 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to ORD to JLN only.

One caution: this is a thin sample. 287 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 5103

For a booking, the cancellation rate is the figure to plan around on OO 5103: 3.48% of its 287 scheduled flights did not operate. A late arrival costs close to two hours, 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