Carrier route record
OOORD→DSM
SkyWest Airlines · Chicago to Des Moines
- Flights
- 1,168
- Period
- July 2025 to June 2026
- Share of route
- 34%
- Carriers
- 6
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with SkyWest Airlines.
SkyWest on ORD to DSM carries a cancellation problem, not just a delay problem: 5.1% of scheduled flights never operate, against 1.8% nationally. Of the ones that do fly, about two flights in three 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 1,168 flights. The strongest carrier on the route with a full sample, Republic Airways, flew 566 at 75.6% on time.
Republic Airways is the most reliable of the three carriers covered here at 75.6% on time across 566 flights.
Key figures
On time
67.0%
Arrivals under 15 minutes late, of 1,104 completed flights
Avg delay
79 min
Across delayed arrivals only, not all flights
Cancelled
5.14%
National rate is 1.81%
Whole route
71.0%
Every carrier on ORD to DSM, 3,405 flights
These figures cover 1,168 flights between July 2025 and June 2026. Beyond the headline rate, 14.6% 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 DSM
SkyWest flew 1,168 of the 3,405 flights on ORD to DSM, about 34% of it. Its 67.0% on time is 4 points worse than the route as a whole, which runs 71.0%. Ranked by on-time rate it is number four of six carriers on the route, where the range runs from Republic at 75.6% to PSA at 0.0%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.
The three carriers here are closely matched: 2 points separate the best from the worst. At that spread, schedule and price are better tie-breakers than reliability. Sample sizes are shown so you can see which rows are worth weighing.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Republic Airways | 566 | 75.6% | 74 min | 4.95% | B− |
| Envoy Air | 465 | 75.4% | 62 min | 2.58% | B |
| United Airlines | 943 | 73.4% | 69 min | 1.70% | C |
| SkyWest Airlines (this page) | 1,168 | 67.0% | 79 min | 5.14% | C− |
| American Airlinesthin sample | 262 | 61.8% | 117 min | 4.96% | D− |
| PSA Airlinesthin sample | 1 | 0.0% | 176 min | 0.00% | F+ |
Republic Airways cancels 5.0% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.
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 22 points, against 2 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am207 flights76.5%
- 8am–11am187 flights76.8%
- 11am–2pm139 flights73.1%
- 2pm–5pm389 flights59.6%
- 5pm–8pm173 flights55.3%
- 8pm–5am73 flights69.1%
Scale runs 45% to 80%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 55.3% on time, against 76.8% 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 389 flights scheduled in it.
Across the year
SkyWest on ORD to DSM through the year
December is the weak month at 52.8% on time, against 80.6% in September. 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. July was the busiest month here, with 148 flights.
Across the week, Tuesday is the strongest day at 74.4% on time and Monday the weakest at 59.5%. 15 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 29,000 reported delay minutes.
- 36%Carrier
- 28%Late-arriving aircraft
- 19%Extreme weather
- 18%National Airspace System
- 0%Security
Extreme weather accounts for 19% 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 3.0 times the usual weather exposure. The split is drawn from 28,742 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 10,000 of the 29,000 delay minutes reported here.
Cancellations run at 5.14%, against 1.81% 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
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 14.6% 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 299 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 runs 66.6% on time across 1,167 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.
The sample behind these figures is 1,168 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 ORD to DSM
Put together: the delay figures matter less here than the 5.14% 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. 1,104 completed flights over 12 months sit behind that.
Related
Where to go next
- ORD to DSM, every carrier
- SkyWest on DSM to ORD, the return leg
- Republic Airways on ORD to DSM75.6%
- Envoy Air on ORD to DSM75.4%
- United Airlines on ORD to DSM73.4%
- American Airlines on ORD to DSM61.8%
- SkyWest Airlines network-wide record
- Chicago O'Hare International (ORD) delay statistics
- The US routes with the most cancellations
- What a cancellation rate actually tells you (and what it hides)
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.