Key West (EYW) to Chicago (ORD): On-Time Performance
Data through May 2026
Key West (EYW) to Chicago (ORD) effectively runs on two schedules. In May 2026, 83% of arrivals were on time; in February 2026 that fell to 56% — a 27-point seasonal swing. Across the full period the route averages 68% on-time against a national 78%.
- On-time
- 68%
- arrived <15 min late
- Avg delay
- 27 min
- completed flights
- Cancelled
- 1.3%
- Flights/day
- 1.8
- last 12 months
- Duration
- 3h 39m
- scheduled
- Distance
- 1,251 mi
Best airline from EYW to ORD
3 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Republic Airwaysmost reliable | 78% | 20 min | 1.2% | 168 |
| Envoy Air | 68% | 26 min | 1.4% | 587 |
| United Airlines | 64% | 32 min | 1.2% | 340 |
Monthly on-time trend
Best time to fly from EYW to ORD
Aim for departures around 7 a.m. (79% on-time); avoid 6 p.m. departures (64%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 68% | 27 min |
| Tuesdaybest | 71% | 18 min |
| Wednesday | 70% | 21 min |
| Thursday | 64% | 32 min |
| Friday | 66% | 35 min |
| Saturday | 70% | 29 min |
| Sunday | 66% | 27 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft45%
- Airline operations27%
- National airspace system24%
- Weather5%
Frequently asked questions
- How often are flights from EYW to ORD delayed?
- 32% of EYW–ORD flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 27 minutes.
- Which airline is most reliable from EYW to ORD?
- Republic Airways has the best on-time record on this route at 78%, based on 168 flights. 3 airlines flew EYW–ORD frequently enough to compare in this period.
- What is the best time of day to fly from EYW to ORD?
- Departures around 7 a.m. have the best record (79% on-time), while departures around 6 p.m. have the worst (64%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from EYW to ORD?
- The scheduled EYW–ORD flight time averages 3h 39m over 1,251 miles. Actual arrival times vary — flights on this route land 15+ minutes late 32% of the time.
- How often are EYW to ORD flights cancelled?
- 1.3% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from EYW to ORD?
- February 2026 was the roughest month in this dataset, with only 56% of arrivals on time. The best was May 2026 at 83%. If your dates are flexible, that 27-point gap is worth planning around.
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Based on 1,095 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.