Historical on-time performance
Key West to Miami
125 miData through May 2026Source: US DOT · BTS
Flights on EYW–MIA arrive on time 81% of the time over the last 12 months.
On-time rate81%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights
based on 1,160 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Envoy AirOn-time81%Medianon timep9035 minCancel0.6%Flights1,160
Why flights run late
Delay causes
- Airline21%
- Weather10%
- Air traffic (NAS)11%
- Late aircraft58%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather29%
- Air traffic (NAS)71%
- Security0%
Most cancellations here are attributed to Air traffic (NAS). Shares are among 7 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly EYW → MIA
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 96% on time.
- Mornings96% on time · p90 5 min · 109 flights · limited
- Evenings81% on time · p90 35 min · 1,109 flights
- Middays80% on time · p90 35 min · 1,620 flights
- Afternoons67% on time · p90 65 min · 806 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 72% to 85% on time.
- Wednesdays85% on time · p90 20 min · 502 flights
- Tuesdays82% on time · p90 35 min · 523 flights
- Fridays79% on time · p90 35 min · 531 flights
- Mondays78% on time · p90 40 min · 529 flights
- Thursdays76% on time · p90 50 min · 512 flights
- Sundays73% on time · p90 50 min · 534 flights
- Saturdays72% on time · p90 55 min · 569 flights
Keep exploring