Carrier route record
OOORD→SGF
SkyWest Airlines · Chicago to Springfield
- Flights
- 334
- Period
- September 2025 to August 2026
- Share of route
- 23%
- Carriers
- 2
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with SkyWest Airlines.
SkyWest on ORD to SGF draws a D−. Roughly 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 334 flights, with a median arrival 2 minutes late.
The national on-time rate over the same period is 77.3%, so SkyWest on ORD to SGF runs 14 points behind the country as a whole. Across a thousand flights that is about 140 extra late arrivals.
Key figures
On time
63.3%
Arrivals under 15 minutes late, of 316 completed flights
Avg delay
76 min
Across delayed arrivals only, not all flights
Cancelled
4.79%
National rate is 1.89%
Whole route
74.5%
Every carrier on ORD to SGF, 1,450 flights
These figures cover 334 flights between September 2025 and August 2026. Beyond the headline rate, 16.1% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
SkyWest against every carrier on ORD to SGF
SkyWest flew 334 of the 1,450 flights on ORD to SGF, about 23% of it. Its 63.3% on time is 11 points worse than the route as a whole, which runs 74.5%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from Envoy at 77.7% to SkyWest at 63.3%.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Envoy Air | 1,116 | 77.7% | 65 min | 2.60% | B |
| SkyWest Airlines (this page)thin sample | 334 | 63.3% | 76 min | 4.79% | D− |
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Departure window
When SkyWest runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 14 points, against half a point between the best and worst carrier.
- 5am–8am—
- 8am–11am88 flights72.9%
- 11am–2pm74 flights59.4%
- 2pm–5pm124 flights59.8%
- 5pm–8pm47 flights59.1%
- 8pm–5am1 flights—
Scale runs 50% to 80%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 59.1% on time, against 72.9% for the 8am–11am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 2pm–5pm window is the busiest, with 124 flights scheduled in it.
Across the year
SkyWest on ORD to SGF through the year
- Jul–Sep 202558 flights74.1%
- Oct–Dec 2025149 flights61.2%
- Jan–Mar 202611 flights—
- Apr–Jun 202654 flights57.7%
- Jul–Sep 202662 flights59.6%
Scale runs 50% to 80%. Rows with fewer than 30 flights show a dash.
Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 63.3% on time across 334 flights.
SkyWest on ORD to SGF did not run the same all year. Its best quarter was Jul–Sep 2025 at 74.1% on time and its weakest Apr–Jun 2026 at 57.7%, a swing of 16 points on roughly 84 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.
Across the week, Tuesday is the strongest day at 72.1% on time and Sunday the weakest at 45.7%, a spread of 26 points.
Arrival by arrival
How late SkyWest on ORD to SGF runs when it is late
The 116 late arrivals split 29 under half an hour, 36 between 30 and 60 minutes, and 51 an hour or more.
- 15+ min early61 flights19.3%
- Within 15 min139 flights44.0%
- 15–29 min late29 flights9.2%
- 30–59 min late36 flights11.4%
- 1–2 hours late33 flights10.4%
- 2+ hours late18 flights5.7%
Scale runs 0% to 100%.
Share of 316 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 100 departures that left 15 minutes late or more, only 5 made it up before arrival. In the other direction, 21 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 SGF.
The worst days
Worst days for SkyWest on ORD to SGF
The latest arrival of the period was on 20 October 2025, 6 hours 34 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 20 October 2025 | 6 hours 34 minutes | Carrier |
| 15 October 2025 | 5 hours 47 minutes | Carrier |
| 4 July 2026 | 5 hours 1 minute | Late-arriving aircraft |
| 14 August 2026 | 4 hours 34 minutes | Carrier |
| 16 August 2026 | 4 hours 32 minutes | National Airspace System |
Delay causes
Why SkyWest runs late on this route
Carrier accounts for 46% of the 8,789 delay minutes carriers reported here, and the remaining four split what is left.
- 46%Carrier
- 19%National Airspace System
- 18%Late-arriving aircraft
- 17%Extreme weather
Extreme weather accounts for 17% 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 monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.8 times the usual weather exposure. The split is drawn from 8,789 reported delay minutes.
The largest share of delay minutes, 46%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 4,039 of the 8,789 delay minutes reported here.
Cancellations run at 4.79%, against 1.89% nationally. That is about one flight in twenty 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 stage length
What a delay here costs
16.1% 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.
At 438 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 8am–11am window matters as much as it does.
The return leg is a different operation and performs like one: it runs 53.3% on time across 335 flights, 10 points below this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 10 points of difference.
One caution: this is a thin sample. 334 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 SkyWest on ORD to SGF
Put together: the delay figures matter less here than the 4.79% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 8am–11am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 316 completed flights over 12 months sit behind that.
Related
Where to go next
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.