Lexington (LEX) to Chicago (ORD): On-Time Performance
Data through July 2026
When you fly LEX to ORD matters as much as anything else about the booking: the route swung from 85% on-time in October 2024 to just 50% in December 2025. Across the full period the route averages 74% on-time against a national 78%. Morning departures also hold up better than evening ones (83% vs 58%), which matters most in the rough months.
- On-time
- 74%
- arrived <15 min late
- Avg delay
- 23 min
- completed flights
- Cancelled
- 2.1%
- Flights/day
- 4.7
- last 12 months
- Duration
- 1h 43m
- scheduled
- Distance
- 323 mi
Best airline from LEX to ORD
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Republic Airwaysmost reliable | 89% | 10 min | 0.0% | 84 |
| Envoy Air | 78% | 17 min | 1.4% | 666 |
| SkyWest Airlines | 73% | 25 min | 2.4% | 2,426 |
Monthly on-time trend
Best time to fly from LEX to ORD
Aim for departures around 7 a.m. (89% on-time); avoid 7 p.m. departures (46%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 76% | 24 min |
| Tuesdaybest | 76% | 18 min |
| Wednesday | 76% | 19 min |
| Thursday | 74% | 25 min |
| Friday | 72% | 23 min |
| Saturday | 74% | 21 min |
| Sunday | 72% | 29 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft28%
- Airline operations39%
- National airspace system23%
- Weather10%
Frequently asked questions
- How often are flights from LEX to ORD delayed?
- 26% of LEX–ORD flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 23 minutes.
- Which airline is most reliable from LEX to ORD?
- Republic Airways has the best on-time record on this route at 89%, based on 84 flights. 3 airlines flew LEX–ORD frequently enough to compare in this period.
- What is the best time of day to fly from LEX to ORD?
- Departures around 7 a.m. have the best record (89% on-time), while departures around 7 p.m. have the worst (46%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from LEX to ORD?
- The scheduled LEX–ORD flight time averages 1h 43m over 323 miles. Actual arrival times vary — flights on this route land 15+ minutes late 26% of the time.
- How often are LEX to ORD flights cancelled?
- 2.1% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from LEX to ORD?
- December 2025 was the roughest month in this dataset, with only 50% of arrivals on time. The best was October 2024 at 85%. If your dates are flexible, that 35-point gap is worth planning around.
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Based on 3,199 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.