Carrier route record
MQCMH→ORD
Envoy Air · Columbus to Chicago
- Flights
- 1,399
- Period
- July 2025 to June 2026
- Share of route
- 29%
- Carriers
- 6
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Envoy Air.
Envoy on CMH to ORD sits in the middle of the pack with a C. Close to three flights in four arrive on time by the DOT's definition, 3 points worse than the national rate of 77.6%. The late ones land an hour and a half behind schedule. That rests on 1,399 flights. The strongest carrier on the route with a full sample, Republic Airways, flew 1,512 at 83.6% on time.
Republic Airways is the most reliable of the three carriers covered here at 83.6% on time across 1,512 flights.
Key figures
On time
74.8%
Arrivals under 15 minutes late, of 1,369 completed flights
Avg delay
100 min
Across delayed arrivals only, not all flights
Cancelled
2.07%
National rate is 1.81%
Whole route
74.5%
Every carrier on CMH to ORD, 4,841 flights
These figures cover 1,399 flights between July 2025 and June 2026. Beyond the headline rate, 10.4% 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
Envoy against every carrier on CMH to ORD
Envoy flew 1,399 of the 4,841 flights on CMH to ORD, about 29% of it. Its 74.8% on time is about level with the route as a whole at 74.5%. Ranked by on-time rate it is number three of six carriers on the route, where the range runs from American at 85.6% to SkyWest at 64.5%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.
The choice of carrier is not cosmetic here. Republic Airways arrives on time 83.6% of the time; SkyWest Airlines manages 64.5%. Sample sizes sit next to every figure, because a two-point gap across 535 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| American Airlinesthin sample | 128 | 85.6% | 95 min | 2.34% | A |
| Republic Airways | 1,512 | 83.6% | 68 min | 2.18% | B |
| Envoy Air (this page) | 1,399 | 74.8% | 100 min | 2.07% | C |
| PSA Airlinesthin sample | 54 | 69.8% | 75 min | 1.85% | C |
| United Airlines | 1,213 | 66.3% | 85 min | 1.81% | C |
| SkyWest Airlines | 535 | 64.5% | 105 min | 5.79% | D− |
SkyWest Airlines cancels 5.8% 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.
Flight by flight
Envoy flight numbers on CMH to ORD
Departure window
When Envoy 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 19 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am352 flights79.7%
- 8am–11am485 flights75.9%
- 11am–2pm176 flights78.9%
- 2pm–5pm169 flights67.7%
- 5pm–8pm122 flights73.2%
- 8pm–5am95 flights56.8%
Scale runs 50% to 85%. Rows with fewer than 30 flights show a dash.
The 8pm–5am window is where this operation falls apart: 56.8% on time, against 79.7% 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 485 flights scheduled in it.
Across the year
Envoy on CMH to ORD through the year
July is the worst month at 59.5% on time, 28 points below May, the best at 87.4%. 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. March was the busiest month here, with 201 flights.
Across the week, Saturday is the strongest day at 83.0% on time and Monday the weakest at 69.0%. 14 points is a smaller lever than departure hour, but it is free.
Delay causes
Why Envoy 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 34,000 reported delay minutes.
- 40%Late-arriving aircraft
- 31%National Airspace System
- 25%Carrier
- 4%Extreme weather
40% 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 34,000 reported delay minutes here, that single category outweighs weather by 10 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 34,355 reported delay minutes.
The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 79.7% on time here.
Cancellations sit at 2.07% against a national 1.81%, which is ordinary. Diversions add another 0.07%.
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. 10.4% 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.
At 296 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 74.0% on time across 1,407 flights, within about 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 1,399 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 Envoy on CMH to ORD
Put together: the calendar is the biggest lever here, not the carrier or the hour. May runs 87.4% on time and July 59.5%, a swing of 28 points. If the dates move at all, move them out of July before you think about anything else. 1,369 completed flights over 12 months sit behind that.
Related
Where to go next
- CMH to ORD, every carrier
- Envoy on ORD to CMH, the return leg
- American Airlines on CMH to ORD85.6%
- Republic Airways on CMH to ORD83.6%
- United Airlines on CMH to ORD66.3%
- SkyWest Airlines on CMH to ORD64.5%
- Envoy Air network-wide record
- John Glenn Columbus International (CMH) delay statistics
- Chicago O'Hare International (ORD) delay statistics
- Why the first flight of the morning is statistically safest
- Same route, different airline: where the carrier you pick matters most
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.