Carrier route record
MQEYW→ORD
Envoy Air · Key West to Chicago
- Flights
- 407
- Period
- July 2025 to June 2026
- Share of route
- 57%
- Carriers
- 3
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Envoy Air.
Envoy on EYW to ORD draws a C. About one flight in three arrives at least 15 minutes late, and the typical late arrival is an hour and a half behind schedule. Build slack into anything you connect to. That rests on 407 flights, with a median arrival 4 minutes early.
The national on-time rate over the same period is 77.6%, so Envoy on EYW to ORD runs 11 points behind the country as a whole. Across a thousand flights that is about 106 extra late arrivals.
Key figures
On time
67.0%
Arrivals under 15 minutes late, of 394 completed flights
Avg delay
90 min
Across delayed arrivals only, not all flights
Cancelled
1.23%
National rate is 1.81%
Whole route
67.4%
Every carrier on EYW to ORD, 717 flights
These figures cover 407 flights between July 2025 and June 2026. Beyond the headline rate, 13.7% 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 EYW to ORD
Envoy flew 407 of the 717 flights on EYW to ORD, most of the route. Its 67.0% on time is about level with the route as a whole at 67.4%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from Republic at 79.4% to United at 54.5%. Two 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.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Republic Airwaysthin sample | 172 | 79.4% | 81 min | 1.74% | B |
| Envoy Air (this page) | 407 | 67.0% | 90 min | 1.23% | C |
| United Airlinesthin sample | 138 | 54.5% | 105 min | 1.45% | F |
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 407 flights.
- 5am–8am—
- 8am–11am—
- 11am–2pm193 flights69.1%
- 2pm–5pm88 flights64.7%
- 5pm–8pm126 flights65.3%
- 8pm–5am—
Scale runs 55% to 75%. Rows with fewer than 30 flights show a dash.
The 11am–2pm window is the strongest at 69.1% on time. The full set of windows spans 4 points.
Across the year
Envoy on EYW to ORD through the year
- Jul–Sep 20255 flights—
- Oct–Dec 202583 flights61.7%
- Jan–Mar 2026178 flights67.8%
- Apr–Jun 2026141 flights69.3%
Scale runs 55% to 75%. 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 67.0% on time across 407 flights.
Quarter by quarter Envoy on EYW to ORD held fairly steady: 61.7% in Oct–Dec 2025, 67.8% in Jan–Mar 2026 and 69.3% in Apr–Jun 2026. A spread of 8 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 68.9% on time and Thursday the weakest at 64.2%. 5 points is a smaller lever than departure hour, but it is free.
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 12,000 reported delay minutes.
- 36%Late-arriving aircraft
- 29%Carrier
- 24%National Airspace System
- 11%Extreme weather
- 0%Security
Extreme weather accounts for 11% 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 1.8 times the usual weather exposure. The split is drawn from 11,689 reported delay minutes.
36% 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 12,000 reported delay minutes here, that single category outweighs weather by 3 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.
Cancellations sit at 1.23% against a national 1.81%, which is ordinary. Diversions add another 1.97%.
Connections and stage length
What a delay here costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 13.7% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
The 1,251 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The return leg is a different operation and performs like one: it runs 82.0% on time across 407 flights, 15 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 15 points of difference.
One caution: this is a thin sample. 407 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 EYW to ORD
Put together: treat all of this as provisional. 407 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 67.0% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 394 completed flights over 12 months sit behind that.
Related
Where to go next
- EYW to ORD, every carrier
- Envoy on ORD to EYW, the return leg
- Republic Airways on EYW to ORD79.4%
- United Airlines on EYW to ORD54.5%
- Envoy Air network-wide record
- Chicago O'Hare International (ORD) delay statistics
- Why the first flight of the morning is statistically safest
- How often a connection fails at the major US hubs
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.