Airport month record
ORDJUN
Chicago O'Hare International in June 2026
- Departures
- 31,374
- Month
- June 2026
- National, same month
- 74.3%
- Carriers
- 10
Historical statistics for June 2026, not live status or a forecast for this year’s June. For today’s conditions at ORD, see live FAA status.
ORD in June sits in the middle of the pack with a C−. About seven flights in ten arrive on time by the DOT's definition, 3 points worse than the national rate of 74.3%. The late ones land a little over an hour behind schedule. That rests on 31,374 flights, of which Republic Airways flew 2,529 at 81.1% on time.
Republic Airways is the most reliable of the seven carriers covered here at 81.1% on time across 2,529 flights.
Key figures
On time
71.3%
Arrivals under 15 minutes late, of 30,254 completed departures
Avg delay
80 min
Across delayed arrivals only, not all flights
Cancelled
3.19%
Nationally in June: 1.65%
Whole year
70.8%
ORD across all twelve months
These figures cover 31,374 departures from Chicago O'Hare International in June 2026. 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
June next to ORD's other months
Against ORD's own year, June ran level with the twelve-month rate of 70.8%, which makes it number seven of twelve months, best first. Either side of it, May ran 76.1% on time and July 71.4%, so a trip moved by a few weeks would have landed in a better stretch.
| Month | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| September 2025 | 28,867 | 79.2% | 68 min | 0.42% | B+ |
| October 2025 | 31,096 | 74.7% | 64 min | 0.23% | C+ |
| November 2025 | 28,703 | 73.3% | 82 min | 5.59% | C− |
| December 2025 | 27,790 | 61.0% | 91 min | 2.53% | D |
| January 2026 | 25,131 | 67.4% | 79 min | 3.74% | C− |
| February 2026 | 25,538 | 73.7% | 67 min | 1.11% | C |
| March 2026 | 31,373 | 65.9% | 85 min | 5.71% | C− |
| April 2026 | 33,206 | 69.7% | 75 min | 3.54% | C− |
| May 2026 | 33,733 | 76.1% | 73 min | 1.01% | B |
| June 2026 (this page) | 31,374 | 71.3% | 80 min | 3.19% | C− |
| July 2026 | 33,010 | 71.4% | 85 min | 4.18% | C− |
| August 2026 | 33,187 | 64.6% | 87 min | 2.31% | D |
Departure window
The best time of day to leave ORD in June
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 32 points, against 19 points between the best and worst carrier.
- 5am–8am3,754 flights87.6%
- 8am–11am6,582 flights83.0%
- 11am–2pm4,892 flights75.5%
- 2pm–5pm5,928 flights65.9%
- 5pm–8pm5,108 flights55.5%
- 8pm–5am5,110 flights60.5%
Scale runs 45% to 95%.
The 5pm–8pm window is where this operation falls apart: 55.5% on time, against 87.6% 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 8am–11am window is the busiest, with 6,582 flights scheduled in it.
Across the week, Tuesday is the strongest day at 78.9% on time and Wednesday the weakest at 61.9%, a spread of 17 points.
Carrier by carrier
Which airlines ran best at ORD in June
The choice of carrier is not cosmetic here. Republic Airways arrives on time 81.1% of the time; American Airlines manages 61.6%. Sample sizes sit next to every figure, because a two-point gap across 5,849 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| United Airlines | 9,284 | 72.5% | 79 min | 1.28% | C |
| SkyWest Airlines | 7,070 | 68.6% | 86 min | 4.30% | C− |
| American Airlines | 5,849 | 61.6% | 84 min | 3.54% | D− |
| Envoy Air | 4,738 | 79.5% | 62 min | 4.09% | B− |
| Republic Airways | 2,529 | 81.1% | 73 min | 4.23% | B− |
| Delta Air Lines | 1,089 | 73.1% | 93 min | 4.41% | C− |
| Alaska Airlines | 377 | 66.5% | 67 min | 1.86% | C |
| Frontier Airlinesthin sample | 270 | 66.2% | 99 min | 3.70% | C− |
| JetBlue Airwaysthin sample | 130 | 79.2% | 91 min | 3.85% | B− |
| Southwest Airlinesthin sample | 38 | 73.7% | 83 min | 0.00% | C+ |
Delta Air Lines cancels 4.4% 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 June
| Route | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| ORD to LGA · New York | 968 | 70.4% | 82 min | 5.58% | C− |
| ORD to BOS · Boston | 751 | 68.3% | 82 min | 2.66% | C |
| ORD to DFW · Dallas-Fort Worth | 666 | 62.8% | 84 min | 3.90% | D− |
| ORD to LAX · Los Angeles | 658 | 63.1% | 85 min | 1.67% | D |
| ORD to DCA · Washington | 638 | 71.6% | 98 min | 3.29% | C− |
| ORD to ATL · Atlanta | 583 | 76.9% | 98 min | 2.57% | B |
| ORD to SEA · Seattle | 582 | 67.8% | 63 min | 1.89% | C |
| ORD to DEN · Denver | 538 | 71.3% | 80 min | 1.12% | C |
| ORD to MSP · Minneapolis | 535 | 73.7% | 88 min | 3.55% | C− |
| ORD to SFO · San Francisco | 530 | 49.9% | 70 min | 1.51% | F |
| ORD to EWR · Newark | 529 | 70.7% | 85 min | 2.65% | C |
| ORD to IAH · Houston | 525 | 69.7% | 72 min | 1.33% | C |
| ORD to DTW · Detroit | 523 | 70.5% | 86 min | 4.78% | C− |
| ORD to PHL · Philadelphia | 492 | 71.4% | 97 min | 3.25% | C− |
| ORD to CMH · Columbus | 450 | 76.0% | 68 min | 3.33% | B− |
| ORD to MCO · Orlando | 431 | 67.2% | 86 min | 1.39% | C |
| ORD to IND · Indianapolis | 424 | 79.4% | 72 min | 5.19% | B− |
| ORD to CVG · Cincinnati | 420 | 78.2% | 102 min | 3.57% | B− |
| ORD to CLT · Charlotte | 417 | 72.5% | 87 min | 2.88% | C |
| ORD to PHX · Phoenix | 416 | 62.3% | 103 min | 1.92% | D |
| ORD to MKE · Milwaukee | 416 | 65.5% | 100 min | 3.85% | C− |
| ORD to BNA · Nashville | 413 | 66.8% | 86 min | 2.66% | C |
| ORD to LAS · Las Vegas | 396 | 68.0% | 64 min | 2.02% | C |
| ORD to CLE · Cleveland | 383 | 68.3% | 96 min | 3.66% | C− |
| ORD to SAN · San Diego | 380 | 67.8% | 74 min | 0.79% | C+ |
Delay causes
What held ORD up in June
Late-arriving aircraft accounts for 45% of the 696,000 delay minutes carriers reported here, and the remaining four split what is left.
- 45%Late-arriving aircraft
- 27%Carrier
- 20%National Airspace System
- 7%Extreme weather
- 0%Security
45% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 696,000 reported delay minutes here, that single category outweighs weather by 6 to one. The split is drawn from 695,945 reported delay minutes.
Cancellations run at 3.19%, against 1.65% nationally. That is about 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.
12.3% of arrivals land a full hour or more behind schedule, against 9.7% 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 June
For a June trip through ORD: expect 71.3% on time and 3.19% cancelled, going by June 2026. The 5am–8am window was the strongest part of the day.
Related
Where to go next
- Chicago O'Hare International (ORD), the whole year
- ORD in September79.2%
- ORD in October74.7%
- ORD in November73.3%
- ORD in December61.0%
- ORD in January67.4%
- ORD in February73.7%
- ORD in March65.9%
- ORD in April69.7%
- ORD in May76.1%
- ORD in July71.4%
- ORD in August64.6%
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.