Carrier route record

MQJAX→ORD

Envoy Air · Jacksonville to Chicago

Flights: 259
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 JAX to ORD sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 5 points worse than the national rate of 77.3%. The late ones land a little over an hour behind schedule. That rests on 259 flights. The strongest carrier on the route with a full sample, American Airlines, flew 434 at 79.6% on time.

American Airlines is the most reliable of the three carriers covered here at 79.6% on time across 434 flights.

On time

72.3%

Arrivals under 15 minutes late, of 256 completed flights

Avg delay

69 min

Across delayed arrivals only, not all flights

Cancelled

0.39%

National rate is 1.89%

Whole route

76.9%

Every carrier on JAX to ORD, 2,172 flights

These figures cover 259 flights between September 2025 and August 2026. Beyond the headline rate, 11.3% 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 JAX to ORD

Envoy flew 259 of the 2,172 flights on JAX to ORD, about 12% of it. Its 72.3% on time is 5 points worse than the route as a whole, which runs 76.9%. Ranked by on-time rate it is number five of six carriers on the route, where the range runs from PSA at 100.0% to SkyWest at 70.2%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.

The three carriers here are closely matched: 2 points 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.

On-time performance by carrier on JAX to ORD
Airline	Flights	On time	Avg delay	Cancelled	Grade
PSA Airlinesthin sample	1	100.0%	—	0.00%	A+
American Airlines	434	79.6%	115 min	2.53%	B
United Airlines	896	78.2%	92 min	0.89%	B+
Republic Airways	365	78.0%	75 min	4.11%	B−
Envoy Air (this page)thin sample	259	72.3%	69 min	0.39%	C+
SkyWest Airlinesthin sample	217	70.2%	82 min	2.76%	C

Republic Airways cancels 4.1% 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.

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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 33 points, against 2 points between the best and worst carrier.

5am–8am47 flights83.0%
8am–11am7 flights—
11am–2pm125 flights76.4%
2pm–5pm—
5pm–8pm67 flights50.0%
8pm–5am13 flights—

Scale runs 40% to 90%. Rows with fewer than 30 flights show a dash.

The 5pm–8pm window is where this operation falls apart: 50.0% on time, against 83.0% for the 5am–8am 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 11am–2pm window is the busiest, with 125 flights scheduled in it.

Across the year

Envoy on JAX to ORD through the year

Jul–Sep 202511 flights—
Oct–Dec 202580 flights78.5%
Jan–Mar 2026100 flights68.0%
Apr–Jun 202645 flights81.8%
Jul–Sep 202623 flights—

Scale runs 60% 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 72.3% on time across 259 flights.

Envoy on JAX to ORD did not run the same all year. Its best quarter was Apr–Jun 2026 at 81.8% on time and its weakest Jan–Mar 2026 at 68.0%, a swing of 14 points on roughly 86 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, Saturday is the strongest day at 87.1% on time and Monday the weakest at 63.6%, a spread of 23 points.

Arrival by arrival

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

Envoy on JAX to ORD often beats the schedule: 87 of 256 completed flights, 34%, arrived 15 minutes or more early. The 71 late arrivals split 14 under half an hour, 28 between 30 and 60 minutes, and 29 an hour or more.

15+ min early87 flights34.0%
Within 15 min98 flights38.3%
15–29 min late14 flights5.5%
30–59 min late28 flights10.9%
1–2 hours late21 flights8.2%
2+ hours late8 flights3.1%

Scale runs 0% to 100%.

Share of 256 completed flights by arrival against schedule.

9 of 68 late departures made up the time and arrived on time, 13% of them. 12 flights left on time and still arrived late.

The worst days

Worst days for Envoy on JAX to ORD

The latest arrival of the period was on 21 December 2025, 5 hours 17 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on four of the five worst days.

The latest arrivals of Envoy on JAX to ORD in the period
Date	Arrived late by	Largest filed cause
21 December 2025	5 hours 17 minutes	Late-arriving aircraft
30 January 2026	5 hours 14 minutes	Late-arriving aircraft
7 December 2025	2 hours 53 minutes	Late-arriving aircraft
30 January 2026	2 hours 48 minutes	National Airspace System
11 August 2026	2 hours 44 minutes	Late-arriving aircraft

Delay causes

Why Envoy runs late on this route

Late-arriving aircraft accounts for 49% of the 4,918 delay minutes carriers reported here, and the remaining four split what is left.

Late-arriving aircraft
49%
National Airspace System
33%
Carrier
15%
Extreme weather
3%

49% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 4,918 reported delay minutes here, that single category outweighs weather by 14 to one. The split is drawn from 4,918 reported delay minutes.

33% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 1,616 minutes out of 4,918, against a national NAS share of 21%.

Cancellations are rare at 0.39%, 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

11.3% 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 73.0% on time across 260 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. 259 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 JAX to ORD

Put together: treat all of this as provisional. 259 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 72.3% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 256 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