Best Time to Fly ORD to EWR: On-Time Stats by Hour & Airline
Chicago O'Hare International → Newark Liberty International
Data through July 2026 · Last updated October 18, 2026
6,071 flights were scheduled from Chicago (ORD) to Newark (EWR) in the last 12 months, and 69.9% of those that flew arrived on time, 7.7 points below the US average of 77.6%.
Among 5 airlines, Envoy Air led with 78.9% on time and Spirit Airlines was last with 45.6%.
Over 24 months, Tuesday was the most reliable day (77% on time) and July the worst month (57%).
The cancellation rate was 3.5% (US average 1.8%).
ORD to EWR on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Envoy Air | 78.9% | 62 min | 5.2% | 595 |
| United Airlines | 72.1% | 87 min | 2.5% | 4,391 |
| Republic Airways | 60.2% | 83 min | 7.8% | 102 |
| American Airlines | 56.9% | 84 min | 4.8% | 833 |
| Spirit Airlines | 45.6% | 79 min | 15.3% | 150 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ORD to EWR
On-time arrival % by scheduled departure hour (local time), 12,345 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 12am–1am | Limited data | 1 | |
| 5am–6am | 96.5% | 3.3% | 120 |
| 6am–7am | 91.1% | 1.9% | 859 |
| 7am–8am | 87.8% | 0.8% | 1,039 |
| 8am–9am | 84.4% | 2.1% | 675 |
| 9am–10am | 79.0% | 2.5% | 591 |
| 10am–11am | 73.5% | 2.4% | 1,101 |
| 11am–12pm | 70.7% | 0.8% | 490 |
| 12pm–1pm | 76.0% | 1.4% | 504 |
| 1pm–2pm | 62.8% | 2.9% | 1,031 |
| 2pm–3pm | 66.5% | 3.4% | 896 |
| 3pm–4pm | 62.7% | 5.8% | 709 |
| 4pm–5pm | 60.8% | 3.1% | 808 |
| 5pm–6pm | 56.0% | 3.4% | 417 |
| 6pm–7pm | 56.5% | 3.6% | 931 |
| 7pm–8pm | 55.5% | 3.2% | 851 |
| 8pm–9pm | 55.7% | 4.0% | 553 |
| 9pm–10pm | 65.5% | 2.5% | 707 |
| 10pm–11pm | 80.4% | 5.1% | 59 |
| 11pm–12am | Limited data | 3 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on ORD to EWR
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 60.1% | -12.0 pts | 4.1% | 243 |
| Christmas & New Year (Dec 20 - Jan 3) | 69.6% | -2.6 pts | 1.1% | 465 |
| Summer peak (Jun 15 - Aug 15) | 60.5% | -11.7 pts | 5.5% | 2,070 |
| All other days | 72.1% | — | 2.2% | 9,567 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).