Carrier route record
MQORD→DAY
Envoy Air · Chicago to Dayton
- Flights
- 357
- Period
- July 2025 to June 2026
- Share of route
- 20%
- 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 DAY 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 about an hour on average. That is a workable record, not a spotless one. That rests on 357 flights. The strongest carrier on the route with a full sample, SkyWest Airlines, flew 469 at 60.7% on time.
The US average over the same twelve months is 77.6%, so there is little to separate Envoy on ORD to DAY from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
76.9%
Arrivals under 15 minutes late, of 346 completed flights
Avg delay
65 min
Across delayed arrivals only, not all flights
Cancelled
3.08%
National rate is 1.81%
Whole route
65.3%
Every carrier on ORD to DAY, 1,744 flights
These figures cover 357 flights between July 2025 and June 2026. Beyond the headline rate, 8.7% 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 ORD to DAY
Envoy flew 357 of the 1,744 flights on ORD to DAY, about 20% of it. Its 76.9% on time is 12 points better than the route as a whole, which runs 65.3%. Ranked by on-time rate it is number two of five carriers on the route, where the range runs from United at 80.9% to PSA at 60.2%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.
The two carriers here are closely matched: half a point 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 |
|---|---|---|---|---|---|
| United Airlinesthin sample | 69 | 80.9% | 80 min | 1.45% | B |
| Envoy Air (this page)thin sample | 357 | 76.9% | 65 min | 3.08% | B− |
| Republic Airwaysthin sample | 103 | 70.8% | 60 min | 6.80% | C− |
| SkyWest Airlines | 469 | 60.7% | 82 min | 6.18% | D− |
| PSA Airlines | 746 | 60.2% | 166 min | 5.36% | D− |
SkyWest Airlines cancels 6.2% 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 is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 357 flights.
- 5am–8am—
- 8am–11am18 flights—
- 11am–2pm108 flights74.0%
- 2pm–5pm88 flights80.5%
- 5pm–8pm6 flights—
- 8pm–5am137 flights73.3%
Scale runs 65% to 85%. Rows with fewer than 30 flights show a dash.
The best window here is not the first bank but the 2pm–5pm slot at 80.5% on time, ahead of 8pm–5am at 73.3%. 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 8pm–5am window is the busiest, with 137 flights scheduled in it.
Across the year
Envoy on ORD to DAY through the year
- Jul–Sep 202528 flights—
- Oct–Dec 2025183 flights76.1%
- Jan–Mar 202638 flights75.0%
- Apr–Jun 2026108 flights77.4%
Scale runs 65% to 85%. Rows with fewer than 30 flights show a dash.
Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 76.9% on time across 357 flights.
Quarter by quarter Envoy on ORD to DAY held fairly steady: 76.1% in Oct–Dec 2025, 75.0% in Jan–Mar 2026 and 77.4% in Apr–Jun 2026. A spread of 2 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
Across the week, Saturday is the strongest day at 83.3% on time and Sunday the weakest at 71.2%. 12 points is a smaller lever than departure hour, but it is free.
Delay causes
Why Envoy runs late on this route
One category carries most of the weight here. Late-arriving aircraft accounts for 55% of the 5,212 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.
- 55%Late-arriving aircraft
- 23%National Airspace System
- 13%Carrier
- 10%Extreme weather
55% 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 5,212 reported delay minutes here, that single category outweighs weather by 6 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 5,212 reported delay minutes.
Cancellations run at 3.08%, against 1.81% nationally. That is roughly one flight in 30 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
8.7% 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 240 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 78.8% on time across 354 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. 357 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 DAY
Put together: the delay figures matter less here than the 3.08% cancellation rate. A late arrival costs you about an hour; a cancelled flight costs you the day. Book the 2pm–5pm departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 346 completed flights over 12 months sit behind that.
Related
Where to go next
- ORD to DAY, every carrier
- Envoy on DAY to ORD, the return leg
- Republic Airways on ORD to DAY70.8%
- SkyWest Airlines on ORD to DAY60.7%
- PSA Airlines on ORD to DAY60.2%
- Envoy Air network-wide record
- Chicago O'Hare International (ORD) delay statistics
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
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.