Best Time to Fly PBI to ORD: On-Time Stats by Hour & Airline
Palm Beach International → Chicago O'Hare International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 68.0% of West Palm Beach/Palm Beach (PBI) to Chicago (ORD) flights arrived on time (1,328 scheduled flights). That is 9.6 points below the national average of 77.6%.
American Airlines was the most punctual of the 2 airlines on the route at 69.2%, while United Airlines trailed at 66.2%.
September has been the best month (77% on time) and Friday the weakest day of the week (65%).
1.7% of flights were cancelled, versus 1.8% nationally.
PBI to ORD 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 |
|---|---|---|---|---|
| American Airlines | 69.2% | 106 min | 2.4% | 796 |
| United Airlines | 66.2% | 91 min | 0.8% | 532 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly PBI to ORD
On-time arrival % by scheduled departure hour (local time), 2,383 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 83.3% | 0.0% | 78 |
| 7am–8am | 82.9% | 2.4% | 42 |
| 8am–9am | 90.7% | 0.8% | 130 |
| 9am–10am | 84.3% | 0.0% | 103 |
| 10am–11am | Limited data | 2 | |
| 11am–12pm | 76.5% | 0.0% | 51 |
| 12pm–1pm | 81.9% | 0.8% | 385 |
| 1pm–2pm | 71.4% | 0.7% | 281 |
| 2pm–3pm | 69.7% | 2.6% | 78 |
| 3pm–4pm | 64.8% | 2.7% | 73 |
| 4pm–5pm | 61.1% | 0.7% | 579 |
| 5pm–6pm | 66.3% | 2.4% | 254 |
| 6pm–7pm | 52.2% | 3.9% | 310 |
| 7pm–8pm | Limited data | 14 | |
| 8pm–9pm | Limited data | 1 | |
| 9pm–10pm | Limited data | 2 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on PBI to ORD
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) | 53.9% | -17.6 pts | 5.5% | 55 |
| Christmas & New Year (Dec 20 - Jan 3) | 68.4% | -3.0 pts | 0.6% | 180 |
| Summer peak (Jun 15 - Aug 15) | 62.2% | -9.2 pts | 2.4% | 287 |
| All other days | 71.4% | — | 1.2% | 1,861 |
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).