Carrier route record

MQORD→JAX

Envoy Air · Chicago to Jacksonville

Flights: 260
Period: September 2025 to August 2026
Share of route: 12%
Carriers: 6

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

Envoy on ORD to JAX sits in the middle of the pack with a C+. Close to three flights in four arrive on time by the DOT's definition, 4 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 260 flights. The strongest carrier on the route with a full sample, Republic Airways, flew 365 at 80.7% on time.

Republic Airways is the most reliable of the three carriers covered here at 80.7% on time across 365 flights.

On time

73.0%

Arrivals under 15 minutes late, of 259 completed flights

Avg delay

55 min

Across delayed arrivals only, not all flights

Cancelled

0.38%

National rate is 1.89%

Whole route

73.2%

Every carrier on ORD to JAX, 2,172 flights

These figures cover 260 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.

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Carrier by carrier

Envoy against every carrier on ORD to JAX

Envoy flew 260 of the 2,172 flights on ORD to JAX, about 12% of it. Its 73.0% on time is about level with the route as a whole at 73.2%. Ranked by on-time rate it is number four of six carriers on the route, where the range runs from PSA at 100.0% to American at 63.8%. 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 80.7% of the time; American Airlines manages 63.8%. Sample sizes sit next to every figure, because a two-point gap across 433 flights means less than a ten-point one.

On-time performance by carrier on ORD to JAX
Airline	Flights	On time	Avg delay	Cancelled	Grade
PSA Airlinesthin sample	1	100.0%	—	0.00%	A+
Republic Airways	365	80.7%	59 min	1.92%	B
United Airlines	895	75.0%	83 min	0.45%	B+
Envoy Air (this page)thin sample	260	73.0%	55 min	0.38%	C+
SkyWest Airlinesthin sample	218	71.1%	63 min	1.83%	C
American Airlines	433	63.8%	97 min	2.77%	D

The spread between Republic and American is 17 points, wide enough that it should decide the booking. On a hundred trips that is 17 more arrivals inside the on-time window.

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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 16 points, against 17 points between the best and worst carrier.

5am–8am30 flights—
8am–11am95 flights80.0%
11am–2pm24 flights—
2pm–5pm58 flights63.8%
5pm–8pm53 flights66.0%
8pm–5am—

Scale runs 55% to 85%. Rows with fewer than 30 flights show a dash.

Book the morning departure. Flights leaving between 8am–11am arrive on time 80.0% of the time, against 63.8% for the afternoon window. That is 16 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 8am–11am window is the busiest, with 95 flights scheduled in it.

Across the year

Envoy on ORD to JAX through the year

Jul–Sep 202511 flights—
Oct–Dec 202581 flights77.5%
Jan–Mar 2026100 flights66.0%
Apr–Jun 202645 flights88.9%
Jul–Sep 202623 flights—

Scale runs 60% to 95%. 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 73.0% on time across 260 flights.

Envoy on ORD to JAX did not run the same all year. Its best quarter was Apr–Jun 2026 at 88.9% on time and its weakest Jan–Mar 2026 at 66.0%, a swing of 23 points on roughly 87 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, Tuesday is the strongest day at 86.7% on time and Wednesday the weakest at 64.7%, a spread of 22 points.

Arrival by arrival

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

Envoy on ORD to JAX often beats the schedule: 97 of 259 completed flights, 37%, arrived 15 minutes or more early. The 70 late arrivals split 20 under half an hour, 26 between 30 and 60 minutes, and 24 an hour or more.

15+ min early97 flights37.5%
Within 15 min92 flights35.5%
15–29 min late20 flights7.7%
30–59 min late26 flights10.0%
1–2 hours late17 flights6.6%
2+ hours late7 flights2.7%

Scale runs 0% to 100%.

Share of 259 completed flights by arrival against schedule.

14 of 58 late departures made up the time and arrived on time, 24% of them. In the other direction, 26 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 JAX.

The worst days

Worst days for Envoy on ORD to JAX

The latest arrival of the period was on 11 August 2026, 2 hours 43 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on three of the five worst days.

The latest arrivals of Envoy on ORD to JAX in the period
Date	Arrived late by	Largest filed cause
11 August 2026	2 hours 43 minutes	Late-arriving aircraft
30 January 2026	2 hours 23 minutes	Late-arriving aircraft
30 January 2026	2 hours 19 minutes	Extreme weather
9 August 2026	2 hours 13 minutes	National Airspace System
29 December 2025	2 hours 9 minutes	Late-arriving aircraft

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 3,867 reported delay minutes.

National Airspace System
35%
Late-arriving aircraft
34%
Extreme weather
16%
Carrier
15%

Extreme weather accounts for 16% 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 2.6 times the usual weather exposure. The split is drawn from 3,867 reported delay minutes.

34% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 3,867 reported delay minutes here, that single category outweighs weather by 2 to one.

Cancellations are rare at 0.38%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.

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.

The 864 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.

The return leg runs 72.3% on time across 259 flights, within half a point 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. 260 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 JAX

Put together: treat all of this as provisional. 260 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 73.0% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 259 completed flights over 12 months sit behind that.

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures