Carrier route record
OOMLI→ORD
SkyWest Airlines · Moline to Chicago
- Flights
- 1,557
- Period
- July 2025 to June 2026
- Share of route
- 71%
- Carriers
- 3
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with SkyWest Airlines.
SkyWest on MLI to ORD carries a cancellation problem, not just a delay problem: 5.6% of scheduled flights never operate, against 1.8% nationally. Of the ones that do fly, about seven flights in ten arrive on time, worth a C− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 1,557 flights, with a median arrival 2 minutes early.
The national on-time rate over the same period is 77.6%, so SkyWest on MLI to ORD runs 7 points behind the country as a whole. Across a thousand flights that is about 72 extra late arrivals.
Key figures
On time
70.4%
Arrivals under 15 minutes late, of 1,468 completed flights
Avg delay
114 min
Across delayed arrivals only, not all flights
Cancelled
5.59%
National rate is 1.81%
Whole route
71.5%
Every carrier on MLI to ORD, 2,191 flights
These figures cover 1,557 flights between July 2025 and June 2026. Beyond the headline rate, 14.9% 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 MLI to ORD
SkyWest flew 1,557 of the 2,191 flights on MLI to ORD, most of the route. Its 70.4% on time is about level with the route as a whole at 71.5%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from Envoy at 74.5% to Republic at 60.0%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
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 | 624 | 74.5% | 66 min | 3.21% | C− |
| SkyWest Airlines (this page) | 1,557 | 70.4% | 114 min | 5.59% | C− |
| Republic Airwaysthin sample | 10 | 60.0% | 179 min | 0.00% | D+ |
Flight by flight
SkyWest flight numbers on MLI to ORD
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 24 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–8am362 flights80.9%
- 8am–11am393 flights72.0%
- 11am–2pm245 flights77.4%
- 2pm–5pm251 flights60.2%
- 5pm–8pm292 flights57.0%
- 8pm–5am14 flights—
Scale runs 50% to 85%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 57.0% on time, against 80.9% for the 5am–8am 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 393 flights scheduled in it.
Across the year
SkyWest on MLI to ORD through the year
July is the worst month at 60.3% on time, 22 points below June, the best at 82.6%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. April was the busiest month here, with 223 flights.
Across the week, Tuesday is the strongest day at 75.9% on time and Friday the weakest at 63.1%. 13 points is a smaller lever than departure hour, but it is free.
Delay causes
Why SkyWest runs late on this route
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 50,000 reported delay minutes.
- 36%Carrier
- 35%Late-arriving aircraft
- 19%National Airspace System
- 9%Extreme weather
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 50,000 reported delay minutes here, that single category outweighs weather by 4 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 49,568 reported delay minutes.
The largest share of delay minutes, 36%, 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 18,000 of the 50,000 delay minutes reported here.
Cancellations run at 5.59%, against 1.81% nationally. That is roughly 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
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 14.9% 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 139 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 5am–8am window matters as much as it does.
The return leg runs 67.8% on time across 1,560 flights, within 3 points of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
The sample behind these figures is 1,557 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
What to do with this
Booking SkyWest on MLI to ORD
Put together: the delay figures matter less here than the 5.59% cancellation rate. A late arrival costs you close to two hours; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 1,468 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.