Carrier route record
MQORD→IND
Envoy Air · Chicago to Indianapolis
- Flights
- 576
- Period
- July 2025 to June 2026
- Share of route
- 11%
- Carriers
- 5
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Envoy Air.
Envoy on ORD to IND lands a B, 3 points better than the national rate of 77.6%. About one flight in five arrives 15 minutes late or worse, and those flights are late by about an hour on average. That is a workable record, not a spotless one. That rests on 576 flights. The strongest carrier on the route with a full sample, Republic Airways, flew 2,716 at 76.5% on time.
The US average over the same twelve months is 77.6%, so there is little to separate Envoy on ORD to IND from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
80.3%
Arrivals under 15 minutes late, of 568 completed flights
Avg delay
57 min
Across delayed arrivals only, not all flights
Cancelled
1.39%
National rate is 1.81%
Whole route
74.2%
Every carrier on ORD to IND, 5,206 flights
These figures cover 576 flights between July 2025 and June 2026. The median arrival is 7 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
Carrier by carrier
Envoy against every carrier on ORD to IND
Envoy flew 576 of the 5,206 flights on ORD to IND, about 11% of it. Its 80.3% on time is 6 points better than the route as a whole, which runs 74.2%. Ranked by on-time rate it is first of five carriers on the route, where the range runs from Envoy at 80.3% to American at 67.4%.
The choice of carrier is not cosmetic here. Republic Airways arrives on time 76.5% of the time; American Airlines manages 67.4%. Sample sizes sit next to every figure, because a two-point gap across 515 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Envoy Air (this page) | 576 | 80.3% | 57 min | 1.39% | B |
| Republic Airways | 2,716 | 76.5% | 79 min | 3.35% | B− |
| SkyWest Airlines | 649 | 69.5% | 79 min | 6.47% | C− |
| United Airlines | 750 | 69.4% | 71 min | 2.27% | C |
| American Airlines | 515 | 67.4% | 71 min | 6.02% | C− |
SkyWest Airlines cancels 6.5% 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 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 14 points, against 9 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am54 flights83.0%
- 8am–11am93 flights79.6%
- 11am–2pm284 flights82.6%
- 2pm–5pm32 flights84.4%
- 5pm–8pm35 flights77.1%
- 8pm–5am78 flights70.3%
Scale runs 60% 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 84.4% on time, ahead of 8pm–5am at 70.3%. 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 11am–2pm window is the busiest, with 284 flights scheduled in it.
Across the year
Envoy on ORD to IND through the year
May is the best month on the calendar at 97.2% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. March was the busiest month here, with 113 flights.
Across the week, Saturday is the strongest day at 85.0% on time and Monday the weakest at 75.3%. 10 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 6,378 reported delay minutes.
- 39%Late-arriving aircraft
- 29%National Airspace System
- 17%Carrier
- 15%Extreme weather
Extreme weather accounts for 15% 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 2.4 times the usual weather exposure. The split is drawn from 6,378 reported delay minutes.
39% 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 6,378 reported delay minutes here, that single category outweighs weather by 3 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.
Cancellations sit at 1.39% against a national 1.81%, which is ordinary. Diversions add another 0.00%.
Connections and stage length
What a delay here costs
5.5% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
At 177 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 77.6% on time across 576 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.
One caution: this is a thin sample. 576 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 Envoy on ORD to IND
Put together: treat all of this as provisional. 576 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 80.3% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 568 completed flights over 12 months sit behind that.
Related
Where to go next
- ORD to IND, every carrier
- Envoy on IND to ORD, the return leg
- Republic Airways on ORD to IND76.5%
- SkyWest Airlines on ORD to IND69.5%
- United Airlines on ORD to IND69.4%
- American Airlines on ORD to IND67.4%
- Envoy Air network-wide record
- Chicago O'Hare International (ORD) delay statistics
- Indianapolis International (IND) delay statistics
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.04 million flight records
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.