Carrier route record
OOORD→SGF
SkyWest Airlines · Chicago to Springfield
- Flights
- 346
- Period
- July 2025 to June 2026
- Share of route
- 24%
- Carriers
- 2
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with SkyWest Airlines.
SkyWest on ORD to SGF sits in the middle of the pack with a C−. About seven flights in ten arrive on time by the DOT's definition, 10 points worse than the national rate of 77.6%. The late ones land a little over an hour behind schedule. That rests on 346 flights, with a median arrival 1 minute early.
The national on-time rate over the same period is 77.6%, so SkyWest on ORD to SGF runs 10 points behind the country as a whole. Across a thousand flights that is about 95 extra late arrivals.
Key figures
On time
68.1%
Arrivals under 15 minutes late, of 332 completed flights
Avg delay
75 min
Across delayed arrivals only, not all flights
Cancelled
3.47%
National rate is 1.81%
Whole route
75.0%
Every carrier on ORD to SGF, 1,434 flights
These figures cover 346 flights between July 2025 and June 2026. Beyond the headline rate, 14.8% 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.
Carrier by carrier
SkyWest against every carrier on ORD to SGF
SkyWest flew 346 of the 1,434 flights on ORD to SGF, about 24% of it. Its 68.1% on time is 7 points worse than the route as a whole, which runs 75.0%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from Envoy at 77.2% to SkyWest at 68.1%.
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 | 1,088 | 77.2% | 64 min | 2.11% | B |
| SkyWest Airlines (this page)thin sample | 346 | 68.1% | 75 min | 3.47% | C− |
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 15 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am—
- 8am–11am105 flights74.5%
- 11am–2pm101 flights65.6%
- 2pm–5pm92 flights67.4%
- 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 74.5% 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 8am–11am window is the busiest, with 105 flights scheduled in it.
Across the year
SkyWest on ORD to SGF through the year
- Jul–Sep 2025132 flights78.6%
- Oct–Dec 2025149 flights61.2%
- Jan–Mar 202611 flights—
- Apr–Jun 202654 flights57.7%
Scale runs 50% to 85%. 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 68.1% on time across 346 flights.
SkyWest on ORD to SGF did not run the same all year. Its best quarter was Jul–Sep 2025 at 78.6% on time and its weakest Apr–Jun 2026 at 57.7%, a swing of 21 points on roughly 115 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, Friday is the strongest day at 80.9% on time and Sunday the weakest at 50.0%. 31 points is a smaller lever than departure hour, but it is free.
Delay causes
Why SkyWest runs late on this route
One category carries most of the weight here. Carrier accounts for 48% of the 7,901 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.
- 48%Carrier
- 21%Extreme weather
- 17%National Airspace System
- 13%Late-arriving aircraft
Extreme weather accounts for 21% 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 3.4 times the usual weather exposure. The split is drawn from 7,901 reported delay minutes.
The largest share of delay minutes, 48%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 3,823 of the 7,901 delay minutes reported here.
Cancellations run at 3.47%, 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 stage length
What a delay here costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 14.8% 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.
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 56.8% on time across 347 flights, 11 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 11 points of difference.
One caution: this is a thin sample. 346 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 3.47% 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. 332 completed flights over 12 months sit behind that.
Related
Where to go next
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.