Carrier route record
MQORD→PIT
Envoy Air · Chicago to Pittsburgh
- Flights
- 138
- Period
- September 2025 to August 2026
- Share of route
- 3%
- Carriers
- 5
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Envoy Air.
Envoy on ORD to PIT lands a B, 3 points 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 about an hour on average. That rests on 138 flights. The strongest carrier on the route with a full sample, Republic Airways, flew 1,722 at 80.3% on time.
Republic Airways is the most reliable of the three carriers covered here at 80.3% on time across 1,722 flights.
Key figures
On time
80.0%
Arrivals under 15 minutes late, of 135 completed flights
Avg delay
68 min
Across delayed arrivals only, not all flights
Cancelled
2.17%
National rate is 1.89%
Whole route
73.6%
Every carrier on ORD to PIT, 4,029 flights
These figures cover 138 flights between September 2025 and August 2026. The median arrival is 3 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Carrier by carrier
Envoy against every carrier on ORD to PIT
Envoy flew 138 of the 4,029 flights on ORD to PIT, about 3% of it. Its 80.0% on time is 6 points better than the route as a whole, which runs 73.6%. Ranked by on-time rate it is number two of five carriers on the route, where the range runs from Republic at 80.3% to American at 54.2%. One 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 80.3% of the time; American Airlines manages 54.2%. Sample sizes sit next to every figure, because a two-point gap across 616 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Republic Airways | 1,722 | 80.3% | 85 min | 2.56% | B |
| Envoy Air (this page)thin sample | 138 | 80.0% | 68 min | 2.17% | B |
| United Airlines | 1,318 | 74.2% | 68 min | 1.37% | C |
| SkyWest Airlinesthin sample | 235 | 68.3% | 63 min | 3.40% | C− |
| American Airlines | 616 | 54.2% | 100 min | 3.08% | F− |
American Airlines cancels 3.1% 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 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 138 flights.
- 5am–8am—
- 8am–11am43 flights76.2%
- 11am–2pm72 flights84.3%
- 2pm–5pm11 flights—
- 5pm–8pm12 flights—
- 8pm–5am—
Scale runs 70% to 90%. Rows with fewer than 30 flights show a dash.
The best window here is not the first bank but the 11am–2pm slot at 84.3% on time, ahead of 8am–11am at 76.2%. Where the curve peaks mid-day rather than at dawn, the constraint is usually congestion at one end rather than the aircraft's own rotation. The 11am–2pm window is the busiest, with 72 flights scheduled in it.
Across the year
Envoy on ORD to PIT through the year
- Jul–Sep 202525 flights—
- Oct–Dec 202536 flights86.1%
- Jan–Mar 202676 flights78.1%
- Apr–Jun 20261 flights—
Scale runs 70% to 90%. 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 80.0% on time across 138 flights.
Split by quarter, Envoy on ORD to PIT logged 25 flights in Jul–Sep 2025, 36 flights in Oct–Dec 2025, 76 flights in Jan–Mar 2026 and 1 flights in Apr–Jun 2026. Fewer than three of those quarters carried the 30 completed flights this site needs before printing a rate, so the 80.0% annual figure is the one to use.
Arrival by arrival
How late Envoy on ORD to PIT runs when it is late
The 27 late arrivals split 12 under half an hour, 6 between 30 and 60 minutes, and 9 an hour or more.
- 15+ min early29 flights21.5%
- Within 15 min79 flights58.5%
- 15–29 min late12 flights8.9%
- 30–59 min late6 flights4.4%
- 1–2 hours late5 flights3.7%
- 2+ hours late4 flights3.0%
Scale runs 0% to 100%.
Share of 135 completed flights by arrival against schedule.
A late pushback is often recovered here: of 23 departures that left 15 minutes late or more, 7 still arrived on time. In the other direction, 11 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 PIT.
The worst days
Worst days for Envoy on ORD to PIT
The latest arrival of the period was on 16 January 2026, 4 hours 44 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. Four of the five worst days fell in January 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 16 January 2026 | 4 hours 44 minutes | Late-arriving aircraft |
| 30 January 2026 | 4 hours 38 minutes | Extreme weather |
| 28 January 2026 | 3 hours 41 minutes | Carrier |
| 14 January 2026 | 2 hours 9 minutes | National Airspace System |
| 7 March 2026 | 1 hour 57 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 1,827 reported delay minutes.
- 34%Late-arriving aircraft
- 32%National Airspace System
- 20%Carrier
- 14%Extreme weather
Extreme weather accounts for 14% 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 2.3 times the usual weather exposure. The split is drawn from 1,827 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 1,827 reported delay minutes here, that single category outweighs weather by 2 to one.
Cancellations sit at 2.17% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and stage length
What a delay here costs
6.7% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
At 413 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 11am–2pm window matters as much as it does.
The return leg is a different operation and performs like one: it runs 74.8% on time across 138 flights, 5 points below 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 5 points of difference.
One caution: this is a thin sample. 138 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 PIT
Put together: treat all of this as provisional. 138 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 80.0% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 135 completed flights over 12 months sit behind that.
Related
Where to go next
- ORD to PIT, every carrier
- Envoy on PIT to ORD, the return leg
- Republic Airways on ORD to PIT80.3%
- United Airlines on ORD to PIT74.2%
- SkyWest Airlines on ORD to PIT68.3%
- American Airlines on ORD to PIT54.2%
- Envoy Air network-wide record
- Chicago O'Hare International (ORD) delay statistics
- Pittsburgh International (PIT) delay statistics
- Same route, different airline: where the carrier you pick matters most
- Why the first flight of the morning is statistically safest
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.