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DelayAtlas

Airport month record

ORDNOV

Chicago O'Hare International in November 2025

Departures
28,703
Month
November 2025
National, same month
79.4%
Carriers
12
C−GRADE

Historical statistics for November 2025, not live status or a forecast for this year’s November. For today’s conditions at ORD, see live FAA status.

ORD in November carries a cancellation problem, not just a delay problem: 5.6% of scheduled flights never operate, against 2.5% nationally. Of the ones that do fly, close to three flights in four arrive on time, worth a C− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 28,703 flights, of which Envoy Air flew 4,377 at 79.1% on time.

Envoy Air is the most reliable of the eight carriers covered here at 79.1% on time across 4,377 flights.

Key figures

On time

73.3%

Arrivals under 15 minutes late, of 27,040 completed departures

Avg delay

82 min

Across delayed arrivals only, not all flights

Cancelled

5.59%

Nationally in November: 2.49%

Whole year

70.8%

ORD across all twelve months

These figures cover 28,703 departures from Chicago O'Hare International in November 2025. On time means an arrival less than 15 minutes after the scheduled gate time, the DOT's threshold, and the national comparison uses every US departure in the same month rather than the whole year.

Against the year

November next to ORD's other months

Against ORD's own year, November ran 3 points better than the twelve-month rate of 70.8%, which makes it number five of twelve months, best first. Cancellations are where November stands out: 5.59% of scheduled departures were called off, 2.0 times the airport's rate across the year. Either side of it, October ran 74.7% on time and December 61.0%, so a trip moved by a few weeks would have landed in a worse stretch.

ORD month by month
MonthFlightsOn timeAvg delayCancelledGrade
September 202528,86779.2%68 min0.42%B+
October 202531,09674.7%64 min0.23%C+
November 2025 (this page)28,70373.3%82 min5.59%C−
December 202527,79061.0%91 min2.53%D
January 202625,13167.4%79 min3.74%C−
February 202625,53873.7%67 min1.11%C
March 202631,37365.9%85 min5.71%C−
April 202633,20669.7%75 min3.54%C−
May 202633,73376.1%73 min1.01%B
June 202631,37471.3%80 min3.19%C−
July 202633,01071.4%85 min4.18%C−
August 202633,18764.6%87 min2.31%D

Departure window

The best time of day to leave ORD in November

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 18 points, against 12 points between the best and worst carrier.

  • 5am–8am2,971 flights83.7%
  • 8am–11am6,371 flights77.1%
  • 11am–2pm4,771 flights74.4%
  • 2pm–5pm5,464 flights72.1%
  • 5pm–8pm5,085 flights65.7%
  • 8pm–5am4,041 flights69.1%

Scale runs 55% to 90%.

Book the early departure. Flights leaving between 5am–8am arrive on time 83.7% of the time, against 65.7% 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 6,371 flights scheduled in it.

Across the week, Thursday is the strongest day at 80.3% on time and Sunday the weakest at 59.2%, a spread of 21 points.

On-time rate by day of the week74.6Mon80.1Tue69.9Wed80.3Thu80.2Fri73.0Sat59.2Sun
Monday: 74.6 percent on time. Tuesday: 80.1 percent on time. Wednesday: 69.9 percent on time. Thursday: 80.3 percent on time. Friday: 80.2 percent on time. Saturday: 73.0 percent on time. Sunday: 59.2 percent on time

Carrier by carrier

Which airlines ran best at ORD in November

The choice of carrier is not cosmetic here. Envoy Air arrives on time 79.1% of the time; Frontier Airlines manages 67.2%. Sample sizes sit next to every figure, because a two-point gap across 390 flights means less than a ten-point one.

Carriers at ORD in November 2025
AirlineFlightsOn timeAvg delayCancelledGrade
United Airlines7,79272.2%81 min2.35%C
SkyWest Airlines6,40770.1%79 min8.63%C−
Envoy Air4,37779.1%70 min6.67%B−
American Airlines4,29574.8%82 min4.38%C−
Republic Airways3,08677.1%81 min7.52%B−
Delta Air Lines96568.5%123 min3.52%C−
Spirit Airlines43574.4%98 min7.59%C−
Frontier Airlines39067.2%91 min7.69%C−
PSA Airlinesthin sample35264.8%125 min9.66%D−
Alaska Airlinesthin sample26554.8%75 min4.91%F−
Southwest Airlinesthin sample25573.0%99 min3.92%C−
JetBlue Airwaysthin sample8470.0%80 min3.57%C−

SkyWest Airlines cancels 8.6% 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

Busiest routes out of ORD in November

Routes from ORD in November 2025
RouteFlightsOn timeAvg delayCancelledGrade
ORD to LGA · New York97759.3%101 min4.40%D−
ORD to BOS · Boston63973.1%94 min4.69%C−
ORD to DFW · Dallas-Fort Worth59273.9%97 min5.74%C−
ORD to LAX · Los Angeles58877.9%72 min3.57%B−
ORD to DCA · Washington56268.9%66 min4.45%C−
ORD to ATL · Atlanta52677.7%100 min5.13%B−
ORD to EWR · Newark52168.4%111 min5.76%C−
ORD to MSP · Minneapolis51272.9%80 min5.47%C−
ORD to MCO · Orlando50377.9%84 min2.98%B
ORD to DTW · Detroit47274.4%76 min9.75%C−
ORD to IAH · Houston46777.5%77 min3.00%B
ORD to MKE · Milwaukee46470.9%84 min11.21%C−
ORD to PHX · Phoenix44575.1%85 min4.27%B−
ORD to BNA · Nashville42769.4%76 min4.22%C−
ORD to DEN · Denver42374.8%70 min3.55%C−
ORD to SFO · San Francisco41269.3%98 min2.67%C
ORD to PHL · Philadelphia41072.8%78 min4.63%C−
ORD to IND · Indianapolis40475.3%75 min8.91%B−
ORD to CLE · Cleveland40368.4%61 min7.20%C−
ORD to CMH · Columbus39177.7%95 min5.88%B−
ORD to SEA · Seattle39162.2%79 min3.84%D−
ORD to LAS · Las Vegas38980.5%90 min2.57%B
ORD to CVG · Cincinnati37873.2%70 min8.20%C−
ORD to MSN · Madison37070.3%101 min10.00%C−
ORD to GRR · Grand Rapidsthin sample35871.0%91 min7.26%C−

Delay causes

What held ORD up in November

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 593,000 reported delay minutes.

  • Late-arriving aircraft
    39%
  • Carrier
    25%
  • National Airspace System
    25%
  • Extreme weather
    10%
  • Security
    0%

39% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 593,000 reported delay minutes here, that single category outweighs weather by 4 to one. The split is drawn from 593,362 reported delay minutes.

Cancellations run at 5.59%, against 2.49% nationally. That is roughly one flight in twenty 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.

11.6% of arrivals land a full hour or more behind schedule, against 7.8% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.

What to do with this

Flying from ORD in November

For a November trip through ORD: expect 73.3% on time and 5.59% cancelled, going by November 2025. The 5am–8am window was the strongest part of the day.

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.