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DelayAtlas

Carrier performance at one airport

MQ→ORD

Envoy Air at Chicago O'Hare International

Departures
57,966
Period
September 2025 to August 2026
Routes
25
Rank here
#1 of 12
BGRADE

Envoy Air at Chicago lands a B, about a point worse than the national rate of 77.3%. About one flight in four arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 57,966 flights, of which Envoy Air flew 57,966 at 76.1% on time.

Measured against the airport rather than the country, Envoy Air runs 5 points ahead of the 70.7% weighted average across all carriers at ORD. That is the comparison worth making: every operator here works the same runways, the same airspace and the same weather.

Key figures

On time

76.1%

56,141 completed departures

Avg delay

65 min

Across delayed flights only

Cancelled

2.93%

At ORD, this carrier only

Rank here

#1

Of 12 carriers clearing the floor at ORD

These figures cover 58,000 flights between September 2025 and August 2026. Beyond the headline rate, 8.9% of arrivals land a full hour or more behind schedule, against 8.3% nationally.

Against the competition

Every carrier at ORD, ranked

The choice of carrier is not cosmetic here. Envoy Air arrives on time 76.1% of the time; PSA Airlines manages 60.2%. Sample sizes sit next to every figure, because a two-point gap across 2,832 flights means less than a ten-point one.

On-time performance of all carriers departing ORD
AirlineFlightsOn timeAvg delayCancelledGrade
Envoy Air (this page)57,96676.1%65 min2.93%B
Republic Airways33,41576.1%74 min3.81%B−
JetBlue Airways1,29373.1%99 min6.34%C−
United Airlines102,13273.0%73 min1.30%C
Delta Air Lines10,68772.0%91 min3.13%C−
Southwest Airlines3,13971.3%70 min1.40%C
Frontier Airlines4,17967.7%109 min3.76%C−
Alaska Airlines3,34667.4%70 min1.82%C
American Airlines61,50666.4%82 min2.56%C
SkyWest Airlines78,95565.8%88 min4.06%C−
Spirit Airlines3,55863.4%83 min5.99%D−
PSA Airlines2,83260.2%127 min7.06%D−

PSA Airlines cancels 7.1% 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.

Route by route

Where Envoy Air flies from ORD

Envoy Air operates 25 routes out of ORD with enough volume to report. Route records inside one carrier at one airport still spread widely, because a short shuttle and a transcontinental have very different exposure to a late inbound.

Envoy Air routes from ORD
RouteFlightsOn timeAvg delayCancelledGrade
ORD to XNA · Bentonville1,59975.7%67 min1.56%B
ORD to HPN · White Plains1,56176.3%68 min3.78%B−
ORD to CMH · Columbus1,40974.3%71 min2.20%C
ORD to GRB · Green Bay1,38975.7%66 min3.74%B−
ORD to CVG · Cincinnati1,35772.4%78 min2.28%C
ORD to ATW · Appleton1,18574.0%65 min3.63%C−
ORD to COU · Columbia1,15173.9%69 min2.69%C
ORD to SGF · Springfield1,11677.7%65 min2.60%B
ORD to MSN · Madison1,11177.8%68 min3.51%B−
ORD to FAR · Fargo1,07876.1%66 min3.06%B−
ORD to CMI · Champaign1,07572.1%68 min3.81%C−
ORD to MSP · Minneapolis1,06575.9%65 min2.82%B
ORD to LSE · La Crosse1,06175.1%60 min4.71%B−
ORD to CWA · Mosinee1,01375.6%63 min4.15%B−
ORD to PIA · Peoria1,00173.7%57 min4.70%C−
ORD to LIT · Little Rock99375.1%65 min1.81%B
ORD to GRR · Grand Rapids96775.2%64 min3.93%B−
ORD to GSO · Greensboro94778.0%71 min2.43%B
ORD to DTW · Detroit94678.2%52 min3.38%B−
ORD to BNA · Nashville92176.1%60 min2.71%B
ORD to TUL · Tulsa88774.7%63 min3.38%C−
ORD to CLE · Cleveland87973.1%62 min4.10%C−
ORD to BMI · Bloomington87977.1%69 min3.87%B−
ORD to GSP · Greer86578.3%72 min3.58%B−
ORD to STL · St. Louis84374.6%53 min3.08%C−

Flight by flight

Envoy Air flight numbers from ORD

Departure window

Best time of day for this operation

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 18 points, against 16 points between the best and worst carrier.

  • 5am–8am2,454 flights87.1%
  • 8am–11am14,825 flights82.0%
  • 11am–2pm9,102 flights79.9%
  • 2pm–5pm10,170 flights74.9%
  • 5pm–8pm9,589 flights69.3%
  • 8pm–5am11,826 flights69.7%

Scale runs 60% to 95%.

Book the early departure. Flights leaving between 5am–8am arrive on time 87.1% of the time, against 69.3% for the evening window. That is 18 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 14,825 flights scheduled in it.

Across the year

Seasonal pattern

On-time rate by calendar month68J76F73M76A85M80J80J68A86S79O79N62D
Darker means more delays. Figures are on-time percentages.September best, December worst

December is the weak month at 61.9% on time, against 85.5% in September. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. March was the busiest month here, with 5,859 flights.

Delay causes

What holds this operation up

  • Late-arriving aircraft
    48%
  • National Airspace System
    23%
  • Carrier
    15%
  • Extreme weather
    14%
  • Security
    0%

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 2.4 times the usual weather exposure. The split is drawn from 868,209 reported delay minutes.

Cancellations run at 2.93%, against 1.89% nationally. That is roughly one flight in 30 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.

8.9% 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.

57,966 flights sit behind these numbers, which is a large enough sample that the headline rate is not moving on noise. Where a sub-group falls below 30 flights the site shows a dash instead of a percentage.

Put together: the delay figures matter less here than the 2.93% cancellation rate. A late arrival costs you about an hour; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 56,141 completed flights over 12 months sit behind that.

Common questions

Envoy Air at ORD

How often is Envoy Air at ORD delayed?

About one flight in four arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 23.9% of the 57,966 flights in this analysis, against 22.7% nationally. Delayed flights are late by about an hour on average.

Which airline is most reliable on Envoy Air at ORD?

Envoy Air leads at 76.1% on time across 57,966 flights. PSA Airlines is at the other end on 60.2%, a gap of 16 points. Sample size matters as much as the percentage: a rate built from a few hundred flights moves around far more than one built from ten thousand.

What time of day has the fewest delays on Envoy Air at ORD?

The 5am–8am departure window is the strongest at 87.1% on time. The 5pm–8pm window is the weakest at 69.3%, 18 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.

How bad are December delays on Envoy Air at ORD?

December is the weakest month at 61.9% on time, compared with 85.5% in September. Across the year that is 24 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.

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.