Carrier route record
OOORD→AVL
SkyWest Airlines · Chicago to Asheville
- Flights
- 740
- Period
- July 2025 to June 2026
- Share of route
- 53%
- Carriers
- 4
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with SkyWest Airlines.
SkyWest on ORD to AVL sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 8 points worse than the national rate of 77.6%. The late ones land about an hour behind schedule. That rests on 740 flights, with a median arrival 1 minute late.
The national on-time rate over the same period is 77.6%, so SkyWest on ORD to AVL runs 8 points behind the country as a whole. Across a thousand flights that is about 75 extra late arrivals.
Key figures
On time
70.1%
Arrivals under 15 minutes late, of 723 completed flights
Avg delay
67 min
Across delayed arrivals only, not all flights
Cancelled
2.30%
National rate is 1.81%
Whole route
75.1%
Every carrier on ORD to AVL, 1,400 flights
These figures cover 740 flights between July 2025 and June 2026. Beyond the headline rate, 9.4% 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 AVL
SkyWest flew 740 of the 1,400 flights on ORD to AVL, most of the route. Its 70.1% on time is 5 points worse than the route as a whole, which runs 75.1%. Ranked by on-time rate it is number three of four carriers on the route, where the range runs from Envoy at 81.4% to PSA at 0.0%. Two 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 | 621 | 81.4% | 49 min | 2.25% | B |
| Republic Airwaysthin sample | 38 | 70.3% | 81 min | 2.63% | C |
| SkyWest Airlines (this page) | 740 | 70.1% | 67 min | 2.30% | C |
| PSA Airlinesthin sample | 1 | 0.0% | 33 min | 0.00% | F+ |
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 23 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–8am178 flights82.8%
- 8am–11am64 flights75.8%
- 11am–2pm—
- 2pm–5pm206 flights71.8%
- 5pm–8pm292 flights60.0%
- 8pm–5am—
Scale runs 50% to 90%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 60.0% on time, against 82.8% 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 5pm–8pm window is the busiest, with 292 flights scheduled in it.
Across the year
SkyWest on ORD to AVL through the year
October is the best month on the calendar at 84.6% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. April was the busiest month here, with 115 flights.
Across the week, Tuesday is the strongest day at 81.7% on time and Sunday the weakest at 61.0%. 21 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 14,000 reported delay minutes.
- 41%Carrier
- 25%Late-arriving aircraft
- 21%National Airspace System
- 13%Extreme weather
Extreme weather accounts for 13% 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 2.1 times the usual weather exposure. The split is drawn from 14,446 reported delay minutes.
The largest share of delay minutes, 41%, 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 5,926 of the 14,000 delay minutes reported here.
Cancellations sit at 2.30% 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. 9.4% 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.
The 536 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The return leg runs 71.6% on time across 739 flights, within 2 points 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. 740 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 AVL
Put together: treat all of this as provisional. 740 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 70.1% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 723 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.