Chicago O'Hare International Airport (ORD) delays & on-time performance
Chicago, Illinois · 193 nonstop destinations · 12 airlines · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at ORD right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
On-time arrivals
72%
arrived < 15 min late
Cancelled
2.8%
10,154 flights
Avg arrival delay
23 min
78 min when late
Departed on time
73%
avg taxi-out 28 min
Figures cover 359,911 departures from ORD; on-time is measured at arrival. Arrivals into ORD were on time 74% of the time.
Key facts
- Flights departing Chicago O'Hare International Airport (ORD) arrived on time 72% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 2.8% were cancelled, and 11% arrived an hour or more late.
- Envoy Air was the most punctual airline here (77% on time); SkyWest Airlines was the least (67%).
- Departures scheduled around 6am did best (86% on time); around 6pm did worst (62%).
- The largest source of delay minutes was late-arriving aircraft (41%).
Most delayed routes from ORD
Lowest on-time arrival rates among regularly flown routes.
- EGE · Eagle57%413 flts
- SLN · Salina59%362 flts
- ASE · Aspen61%1,134 flts
- SUX · Sioux City62%365 flts
- CRW · Charleston/Dunbar62%948 flts
- LNK · Lincoln63%1,586 flts
- RNO · Reno64%363 flts
- SBN · South Bend64%2,737 flts
- JST · Johnstown64%362 flts
- FSD · Sioux Falls64%1,799 flts
Most reliable routes from ORD
Highest on-time arrival rates among regularly flown routes.
- MHT · Manchester84%602 flts
- ILM · Wilmington83%542 flts
- ECP · Panama City82%619 flts
- EYW · Key West81%775 flts
- MYR · Myrtle Beach80%495 flts
- PNS · Pensacola80%727 flts
- MSO · Missoula80%499 flts
- RAP · Rapid City79%692 flts
- BHM · Birmingham78%1,116 flts
- GSO · Greensboro/High Point78%1,564 flts
Best airline at ORD
Departures from this airport, ranked by on-time arrival.
| Airline | On time | Cancelled | Avg delay | Routes | Flights |
|---|---|---|---|---|---|
| Envoy Air | 77% | 2.9% | 15 min | 111 | 57,363 |
| JetBlue | 77% | 5.2% | 23 min | 3 | 1,192 |
| Republic Airways | 77% | 3.8% | 18 min | 82 | 32,790 |
| United Airlines | 74% | 1.4% | 20 min | 108 | 100,681 |
| Delta Air Lines | 73% | 3.0% | 25 min | 9 | 10,620 |
| Southwest Airlines | 72% | 1.3% | 21 min | 12 | 3,547 |
| Alaska Airlines | 69% | 1.8% | 22 min | 5 | 3,307 |
| Frontier Airlines | 68% | 3.7% | 36 min | 23 | 4,176 |
| American Airlines | 67% | 2.6% | 28 min | 81 | 60,898 |
| SkyWest Airlines | 67% | 4.1% | 30 min | 137 | 78,162 |
| Spirit Airlines | 65% | 5.3% | 30 min | 18 | 4,062 |
| PSA Airlines | 61% | 6.8% | 52 min | 32 | 3,113 |
Best time to fly out of ORD
On-time arrival rate by scheduled departure hour (local time).
- 6am86%12,581 flts
- 7am84%23,788 flts
- 8am80%30,496 flts
- 9am77%24,893 flts
- 10am75%25,526 flts
- 11am75%19,241 flts
- 12pm74%18,400 flts
- 1pm74%22,829 flts
- 2pm71%23,610 flts
- 3pm68%19,718 flts
- 4pm65%22,112 flts
- 5pm62%19,044 flts
- 6pm62%24,123 flts
- 7pm63%23,401 flts
- 8pm63%20,848 flts
- 9pm65%16,907 flts
- 10pm64%8,209 flts
Monthly trend
Why departures were late
- Late-arriving aircraft41%
- Airline (crew, maintenance, cleaning, fueling)28%
- Air traffic control & airport congestion20%
- Extreme weather10%
- Security0%
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.