ORD to EYW flight delays & on-time performance
Nonstop flights from Chicago O'Hare International Airport to Key West International Airport · 1,251 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at ORD or EYW right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Chicago (ORD) to Key West (EYW) arrived on time 81% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1.4% were cancelled, and 7% arrived an hour or more late.
- Envoy Air was the most punctual airline here (82% on time); United Airlines was the least (77%).
- Departures scheduled around 8am did best (84% on time); around 11am did worst (73%).
- Tuesday was the most reliable day to fly (88% on time) and Saturday the least (77%).
- The largest source of delay minutes was late-arriving aircraft (38%).
Which airline is most on time from ORD to EYW?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Envoy AirRegional airline operating American Eagle flights. | 82% | 1.4% | 12 min | 6.8% | 434 |
| Republic AirwaysRegional airline operating flights for American Eagle, Delta Connection and United Express. | 80% | 2.0% | 11 min | 5.6% | 203 |
| United Airlines | 77% | 0.7% | 19 min | 9.6% | 138 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am82%28 flights
- 8am84%197 flights
- 10am81%273 flights
- 11am73%114 flights
- 12pm80%12 flights
- 1pm81%114 flights
- 5pm81%33 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday80%4.7% cancelled
- Tuesday88%0.0% cancelled
- Wednesday83%0.0% cancelled
- Thursday80%0.0% cancelled
- Friday78%0.0% cancelled
- Saturday77%1.7% cancelled
- Sunday79%3.6% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft38%
- Air traffic control & airport congestion36%
- Airline (crew, maintenance, cleaning, fueling)17%
- Extreme weather9%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather82%
- Airline (crew, maintenance, cleaning, fueling)9%
- Air traffic control & airport congestion9%
- Security0%
ORD to EYW: common questions
- How often are ORD to EYW flights on time?
- 81% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Chicago to Key West cancelled?
- 1.4% of scheduled flights were cancelled (11 of 775).
- How long are typical delays?
- Across all flights the average arrival delay was 13 min (early arrivals count as zero). Flights that were late arrived 62 min behind schedule on average, and 7.0% of flights were an hour or more late.
- How long is taxi time at ORD?
- Flights on this route spent 31 min taxiing from the gate to takeoff on average.
Related routes
Return trip: EYW to ORD — 69% on time
More flights from Chicago
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: ORD → EYW, nonstop flights by US airlines that report to the DOT. How we calculate this.