Carrier route record
OOMDW→MSP
SkyWest Airlines · Chicago to Minneapolis
- Flights
- 891
- Period
- July 2025 to June 2026
- Share of route
- 36%
- Carriers
- 2
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with SkyWest Airlines.
SkyWest on MDW to MSP lands a B, level with the national rate of 77.6%. Roughly one flight in four arrives 15 minutes late or worse, and those flights are late by an hour and a half on average. That is a workable record, not a spotless one. That rests on 891 flights, with a median arrival 9 minutes early.
The US average over the same twelve months is 77.6%, so there is little to separate SkyWest on MDW to MSP from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
77.2%
Arrivals under 15 minutes late, of 879 completed flights
Avg delay
83 min
Across delayed arrivals only, not all flights
Cancelled
1.35%
National rate is 1.81%
Whole route
76.9%
Every carrier on MDW to MSP, 2,485 flights
These figures cover 891 flights between July 2025 and June 2026. Beyond the headline rate, 9.1% 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 MDW to MSP
SkyWest flew 891 of the 2,485 flights on MDW to MSP, about 36% of it. Its 77.2% on time is about level with the route as a whole at 76.9%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from SkyWest at 77.2% to Southwest at 76.6%.
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 |
|---|---|---|---|---|---|
| SkyWest Airlines (this page) | 891 | 77.2% | 83 min | 1.35% | B |
| Southwest Airlines | 1,594 | 76.6% | 57 min | 1.82% | B |
Flight by flight
SkyWest flight numbers on MDW to MSP
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 13 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–11am281 flights78.9%
- 11am–2pm210 flights80.2%
- 2pm–5pm93 flights84.8%
- 5pm–8pm307 flights71.4%
- 8pm–5am—
Scale runs 65% to 90%. Rows with fewer than 30 flights show a dash.
The best window here is not the first bank but the 2pm–5pm slot at 84.8% on time, ahead of 5pm–8pm at 71.4%. Where the curve peaks mid-day rather than at dawn, the constraint is usually congestion at one end rather than the aircraft's own rotation. The 5pm–8pm window is the busiest, with 307 flights scheduled in it.
Across the year
SkyWest on MDW to MSP through the year
December is the weak month at 56.2% on time, against 91.3% in October. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. March was the busiest month here, with 92 flights.
Across the week, Saturday is the strongest day at 82.6% on time and Monday the weakest at 71.1%. 12 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 61% of the 17,000 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.
- 61%Carrier
- 28%Extreme weather
- 11%National Airspace System
- 1%Security
Extreme weather accounts for 28% 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 4.4 times the usual weather exposure. The split is drawn from 16,503 reported delay minutes.
The largest share of delay minutes, 61%, 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 10,000 of the 17,000 delay minutes reported here.
Cancellations sit at 1.35% against a national 1.81%, which is ordinary. Diversions add another 0.00%.
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. 9.1% 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 349 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 2pm–5pm window matters as much as it does.
The return leg runs 76.6% on time across 891 flights, within half a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
One caution: this is a thin sample. 891 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 MDW to MSP
Put together: treat all of this as provisional. 891 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 77.2% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 879 completed flights over 12 months sit behind that.
Related
Where to go next
- MDW to MSP, every carrier
- SkyWest on MSP to MDW, the return leg
- Southwest Airlines on MDW to MSP76.6%
- SkyWest Airlines network-wide record
- Chicago Midway International (MDW) delay statistics
- Minneapolis-St Paul International (MSP) delay statistics
- The best time of day to fly, according to 7.04 million flight records
- How often a connection fails at the major US hubs
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.