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DelayAtlas

Carrier route record

MQORD→LEX

Envoy Air · Chicago to Lexington

Flights
295
Period
September 2025 to August 2026
Share of route
17%
Carriers
3
CGRADE

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

Envoy on ORD to LEX sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 4 points worse than the national rate of 77.3%. The late ones land a little over an hour behind schedule. That rests on 295 flights, with a median arrival 5 minutes early.

The national on-time rate over the same period is 77.3%, so Envoy on ORD to LEX runs 4 points behind the country as a whole. Across a thousand flights that is about 44 extra late arrivals.

Key figures

On time

72.9%

Arrivals under 15 minutes late, of 291 completed flights

Avg delay

77 min

Across delayed arrivals only, not all flights

Cancelled

1.36%

National rate is 1.89%

Whole route

69.3%

Every carrier on ORD to LEX, 1,702 flights

These figures cover 295 flights between September 2025 and August 2026. Beyond the headline rate, 9.3% 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 ORD to LEX

Envoy flew 295 of the 1,702 flights on ORD to LEX, about 17% of it. Its 72.9% on time is 4 points better than the route as a whole, which runs 69.3%. Ranked by on-time rate it is first of three carriers on the route, where the range runs from Envoy at 72.9% to SkyWest at 68.5%. One 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.

On-time performance by carrier on ORD to LEX
AirlineFlightsOn timeAvg delayCancelledGrade
Envoy Air (this page)thin sample29572.9%77 min1.36%C
PSA Airlinesthin sample2369.6%62 min0.00%C+
SkyWest Airlines1,38468.5%89 min3.54%C−

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 30 points, against half a point between the best and worst carrier.

  • 5am–8am54 flights75.9%
  • 8am–11am44 flights93.2%
  • 11am–2pm57 flights75.9%
  • 2pm–5pm49 flights63.3%
  • 5pm–8pm—
  • 8pm–5am91 flights64.4%

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

Book the morning departure. Flights leaving between 8am–11am arrive on time 93.2% of the time, against 63.3% for the afternoon window. That is 30 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 8pm–5am window is the busiest, with 91 flights scheduled in it.

Across the year

Envoy on ORD to LEX through the year

  • Oct–Dec 202551 flights56.9%
  • Jan–Mar 2026183 flights73.2%
  • Apr–Jun 202661 flights85.2%

Scale runs 50% to 90%.

Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 72.9% on time across 295 flights.

Envoy on ORD to LEX did not run the same all year. Its best quarter was Apr–Jun 2026 at 85.2% on time and its weakest Oct–Dec 2025 at 56.9%, a swing of 28 points on roughly 98 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.

Across the week, Thursday is the strongest day at 81.8% on time and Friday the weakest at 65.3%, a spread of 17 points.

On-time rate by day of the week68.9Mon76.2Tue70.7Wed81.8Thu65.3Fri—Sat75.6Sun
Monday: 68.9 percent on time. Tuesday: 76.2 percent on time. Wednesday: 70.7 percent on time. Thursday: 81.8 percent on time. Friday: 65.3 percent on time. Saturday: not enough flights. Sunday: 75.6 percent on time

Arrival by arrival

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

Envoy on ORD to LEX often beats the schedule: 79 of 291 completed flights, 27%, arrived 15 minutes or more early. The 79 late arrivals split 23 under half an hour, 29 between 30 and 60 minutes, and 27 an hour or more.

  • 15+ min early79 flights27.1%
  • Within 15 min133 flights45.7%
  • 15–29 min late23 flights7.9%
  • 30–59 min late29 flights10.0%
  • 1–2 hours late13 flights4.5%
  • 2+ hours late14 flights4.8%

Scale runs 0% to 100%.

Share of 291 completed flights by arrival against schedule.

19 of 79 late departures made up the time and arrived on time, 24% of them. In the other direction, 19 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 LEX.

The worst days

Worst days for Envoy on ORD to LEX

The latest arrival of the period was on 30 January 2026, 13 hours 2 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. On three of the five worst days the largest share was filed as extreme weather.

The latest arrivals of Envoy on ORD to LEX in the period
DateArrived late byLargest filed cause
30 January 202613 hours 2 minutesLate-arriving aircraft
29 December 20255 hoursExtreme weather
10 March 20264 hours 21 minutesExtreme weather
31 March 20263 hours 57 minutesLate-arriving aircraft
2 April 20263 hours 46 minutesExtreme weather

Delay causes

Why Envoy runs late on this route

Late-arriving aircraft accounts for 47% of the 6,097 delay minutes carriers reported here, and the remaining four split what is left.

  • Late-arriving aircraft
    47%
  • Extreme weather
    23%
  • National Airspace System
    20%
  • Carrier
    10%

Extreme weather accounts for 23% 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 3.9 times the usual weather exposure. The split is drawn from 6,097 reported delay minutes.

47% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 6,097 reported delay minutes here, that single category outweighs weather by 2 to one.

Cancellations sit at 1.36% against a national 1.89%, which is ordinary. Diversions add another 0.00%.

Connections and stage length

What a delay here costs

9.3% 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 323 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 is a different operation and performs like one: it runs 76.7% on time across 296 flights, 4 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 4 points of difference.

One caution: this is a thin sample. 295 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 LEX

Put together: treat all of this as provisional. 295 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 72.9% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 291 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.