Best Time to Fly LEX to ORD: On-Time Stats by Hour & Airline
Blue Grass → Chicago O'Hare International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 73.4% of Lexington (LEX) to Chicago (ORD) flights arrived on time (1,710 scheduled flights). That is 4.2 points below the national average of 77.6%.
Envoy Air was the most punctual of the 2 airlines on the route at 76.7%, while SkyWest Airlines trailed at 72.5%.
April has been the best month (81% on time) and Friday the weakest day of the week (72%).
3.2% of flights were cancelled, versus 1.8% nationally.
LEX 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 |
|---|---|---|---|---|
| Envoy Air | 76.7% | 89 min | 1.4% | 296 |
| SkyWest Airlines | 72.5% | 104 min | 3.6% | 1,391 |
| PSA Airlines | Limited data | 23 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly LEX to ORD
On-time arrival % by scheduled departure hour (local time), 3,072 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 82.6% | 3.4% | 89 |
| 6am–7am | 85.1% | 1.3% | 469 |
| 7am–8am | 88.2% | 1.7% | 472 |
| 8am–9am | 75.0% | 4.2% | 72 |
| 10am–11am | 83.5% | 0.0% | 103 |
| 11am–12pm | 73.5% | 1.8% | 396 |
| 12pm–1pm | 87.8% | 0.0% | 98 |
| 1pm–2pm | 81.0% | 1.2% | 165 |
| 2pm–3pm | 73.8% | 0.6% | 169 |
| 3pm–4pm | Limited data | 3 | |
| 4pm–5pm | 69.7% | 4.3% | 93 |
| 5pm–6pm | 61.8% | 1.9% | 463 |
| 6pm–7pm | 55.6% | 4.8% | 357 |
| 7pm–8pm | 46.4% | 5.0% | 119 |
| 8pm–9pm | Limited data | 2 | |
| 10pm–11pm | 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 LEX 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) | 61.5% | -14.4 pts | 10.3% | 58 |
| Christmas & New Year (Dec 20 - Jan 3) | 75.0% | -0.9 pts | 0.0% | 68 |
| Summer peak (Jun 15 - Aug 15) | 67.6% | -8.3 pts | 2.4% | 551 |
| All other days | 75.9% | — | 2.0% | 2,395 |
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).