BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
MIA→EYW

Miami, FL (MIA) to Key West, FL (EYW) flight delay odds

85.5% of 1,244 official scheduled MIA-to-EYW flights arrived on time; 8.0% arrived at least 30 minutes late and 0.4% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALLower disruption
85.5%arrived on time
8.0%30+ min late
0.4%cancelled
1,244scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late3.5%all scheduled flights
120+ minutes late0.6%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival-1.4 mincompleted flights

Which departure time was most reliable for MIA to EYW?

Among qualifying MIA-to-EYW departure window results, Night had the highest on-time rate: 94.4% of 107 flights. Afternoon was lowest at 81.4% across 517 flights.

Departure windowFlightsOn time30+ minCancelled
Late morning30589.8%7.5%0.0%
Afternoon51781.4%9.9%0.0%
Evening31585.1%7.6%1.6%
Night10794.4%1.9%0.0%

Which weekday was most reliable for MIA to EYW?

Among qualifying MIA-to-EYW weekday results, Tuesday had the highest on-time rate: 90.1% of 181 flights. Saturday was lowest at 76.0% across 196 flights.

DayFlightsOn time30+ minCancelled
Monday17988.8%6.1%0.0%
Tuesday18190.1%5.0%0.0%
Wednesday16289.5%4.9%0.6%
Thursday17188.9%3.5%0.6%
Friday17784.7%7.9%1.1%
Saturday19676.0%15.8%0.5%
Sunday17882.0%11.8%0.0%

Which airline was most reliable for MIA to EYW?

Among qualifying MIA-to-EYW airline results, Envoy Air had the highest on-time rate: 86.7% of 1,154 flights. Republic Airways was lowest at 69.2% across 65 flights.

AirlineFlightsOn time30+ minCancelled
Envoy Air1,15486.7%7.1%0.4%
Republic Airways6569.2%21.5%0.0%
American Airlines2576.0%16.0%0.0%

Which month was most reliable for MIA to EYW?

Among qualifying MIA-to-EYW month results, May 2026 had the highest on-time rate: 93.8% of 96 flights. February 2026 was lowest at 75.2% across 105 flights.

MonthFlightsOn time30+ minCancelled
July 20258785.1%6.9%0.0%
August 20259377.4%16.1%0.0%
September 20259086.7%10.0%0.0%
October 202511893.2%5.1%0.0%
November 202512582.4%7.2%4.0%
December 202512885.2%10.2%0.0%
January 202615081.3%7.3%0.0%
February 202610575.2%7.6%0.0%
March 20267483.8%16.2%0.0%
April 20268992.1%4.5%0.0%
May 20269693.8%4.2%0.0%
June 20268993.3%3.4%0.0%

What drove MIA to EYW delay minutes?

Late aircraft was the largest recorded MIA-to-EYW delay category, accounting for 41.5% of 8,922 BTS-attributed delay minutes during July 2025–June 2026.

Airline19.3%
Late aircraft41.5%
National airspace24.9%
Weather14.3%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.