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DelayAtlas

Carrier route record

MQDAY→ORD

Envoy Air · Dayton to Chicago

Flights
464
Period
September 2025 to August 2026
Share of route
26%
Carriers
5
B−GRADE

Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Envoy Air.

Envoy on DAY to ORD lands a B−, about a point better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by an hour and a half on average. That rests on 464 flights. The strongest carrier on the route with a full sample, PSA Airlines, flew 561 at 75.0% on time.

The US average over the same twelve months is 77.3%, so there is little to separate Envoy on DAY to ORD from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.

Key figures

On time

78.7%

Arrivals under 15 minutes late, of 450 completed flights

Avg delay

89 min

Across delayed arrivals only, not all flights

Cancelled

3.02%

National rate is 1.89%

Whole route

72.7%

Every carrier on DAY to ORD, 1,810 flights

These figures cover 464 flights between September 2025 and August 2026. Beyond the headline rate, 9.6% of arrivals land a full hour or more behind schedule, against 8.3% nationally.

Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Carrier by carrier

Envoy against every carrier on DAY to ORD

Envoy flew 464 of the 1,810 flights on DAY to ORD, about 26% of it. Its 78.7% on time is 6 points better than the route as a whole, which runs 72.7%. Ranked by on-time rate it is number three of five carriers on the route, where the range runs from Republic at 90.6% to SkyWest at 62.4%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.

The choice of carrier is not cosmetic here. PSA Airlines arrives on time 75.0% of the time; SkyWest Airlines manages 62.4%. Sample sizes sit next to every figure, because a two-point gap across 621 flights means less than a ten-point one.

On-time performance by carrier on DAY to ORD
AirlineFlightsOn timeAvg delayCancelledGrade
Republic Airwaysthin sample9590.6%106 min10.53%A−
United Airlinesthin sample6980.9%44 min1.45%B
Envoy Air (this page)46478.7%89 min3.02%B−
PSA Airlines56175.0%111 min4.28%B−
SkyWest Airlines62162.4%101 min6.28%D−

SkyWest Airlines cancels 6.3% 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.

Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

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 33 points, against 13 points between the best and worst carrier.

  • 5am–8am120 flights86.4%
  • 8am–11am53 flights94.3%
  • 11am–2pm75 flights90.4%
  • 2pm–5pm105 flights70.7%
  • 5pm–8pm111 flights61.7%
  • 8pm–5am—

Scale runs 55% to 100%. Rows with fewer than 30 flights show a dash.

The 5pm–8pm window is where this operation falls apart: 61.7% on time, against 94.3% 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 5am–8am window is the busiest, with 120 flights scheduled in it.

Across the year

Envoy on DAY to ORD through the year

  • Jul–Sep 202527 flights—
  • Oct–Dec 2025182 flights76.0%
  • Jan–Mar 202639 flights81.1%
  • Apr–Jun 2026106 flights81.0%
  • Jul–Sep 2026110 flights78.3%

Scale runs 70% 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 78.7% on time across 464 flights.

Quarter by quarter Envoy on DAY to ORD held fairly steady: 76.0% in Oct–Dec 2025, 81.1% in Jan–Mar 2026, 81.0% in Apr–Jun 2026 and 78.3% in Jul–Sep 2026. A spread of 5 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 86.7% on time and Wednesday the weakest at 67.2%, a spread of 20 points.

On-time rate by day of the week80.0Mon80.4Tue67.2Wed83.1Thu79.7Fri86.7Sat73.9Sun
Monday: 80.0 percent on time. Tuesday: 80.4 percent on time. Wednesday: 67.2 percent on time. Thursday: 83.1 percent on time. Friday: 79.7 percent on time. Saturday: 86.7 percent on time. Sunday: 73.9 percent on time

Arrival by arrival

How late Envoy on DAY to ORD runs when it is late

Envoy on DAY to ORD often beats the schedule: 165 of 450 completed flights, 37%, arrived 15 minutes or more early. The 96 late arrivals split 24 under half an hour, 29 between 30 and 60 minutes, and 43 an hour or more.

  • 15+ min early165 flights36.7%
  • Within 15 min189 flights42.0%
  • 15–29 min late24 flights5.3%
  • 30–59 min late29 flights6.4%
  • 1–2 hours late25 flights5.6%
  • 2+ hours late18 flights4.0%

Scale runs 0% to 100%.

Share of 450 completed flights by arrival against schedule.

10 of 77 late departures made up the time and arrived on time, 13% of them. In the other direction, 29 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at ORD.

The worst days

Worst days for Envoy on DAY to ORD

The latest arrival of the period was on 27 July 2026, 17 hours 18 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.

The latest arrivals of Envoy on DAY to ORD in the period
DateArrived late byLargest filed cause
27 July 202617 hours 18 minutesCarrier
29 November 20256 hours 6 minutesExtreme weather
30 November 20255 hours 17 minutesLate-arriving aircraft
1 January 20264 hours 54 minutesCarrier
2 December 20254 hours 35 minutesCarrier

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 8,504 reported delay minutes.

  • Late-arriving aircraft
    40%
  • National Airspace System
    29%
  • Carrier
    26%
  • Extreme weather
    5%

40% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 8,504 reported delay minutes here, that single category outweighs weather by 8 to one. The split is drawn from 8,504 reported delay minutes.

The practical consequence: the 8am–11am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 94.3% on time here.

Cancellations run at 3.02%, against 1.89% 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

9.6% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.

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 8am–11am window matters as much as it does.

The return leg runs 76.1% on time across 467 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. 464 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 DAY to ORD

Put together: the delay figures matter less here than the 3.02% cancellation rate. A late arrival costs you an hour and a half; 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. 450 completed flights over 12 months sit behind that.

Related

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.