EYW to MIA flight delays
Key West, FL (EYW) Miami, FL (MIA) · 126 miles
1,244 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
80.39%
Arrived on time
Within 15 minutes of schedule
0.4%
Cancelled
Share of scheduled flights
70 min
When late, late by
Average across delayed arrivals
15 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The season swings this route hard. In October it ran 26.6 points more punctual than in March — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
The two directions do not behave alike. MIA to EYW arrives on time 5.8 points more often than the outbound. Delay accumulates through the flying day, so whichever direction is scheduled later tends to carry the worse record — which is an argument for booking the morning departure if the choice exists.
Only Envoy Air flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
The Key West to Miami route sits close to the middle of the record — neither notably punctual nor notably late.
Which airline should you fly on this route?
Over January 2025 – August 2026, Envoy Air arrived on time most often on EYW to MIA. Flights ran closest to schedule in October and worst in March.
Every airline on EYW to MIA
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Envoy Air | 1,154 | 81.55% | 0.43% | 69 min | B |
| Republic Airways | 65 | 61.54% | 0% | 72 min | — |
| American Airlines | 25 | 76% | 0% | 83 min | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
MIA to EYW Miami back to Key West 86.15% on time AOther routes from Key West
Common questions
Are flights from Key West to Miami usually delayed?
80.39% of flights on the EYW to MIA route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is better than the average route in this record.
Which airlines fly from Key West to Miami?
Only Envoy Air appears in the published record on this route, with 1,154 flights and 81.55% arriving on time.
How often are EYW to MIA flights cancelled?
0.4% of scheduled flights did not operate — about 4 in every thousand. That is in the normal range.
What is the best month to fly Key West to Miami?
October, when 91.5% of flights arrived on time. The worst was March at 64.9%.
When EYW to MIA flights are late, how late are they?
About 70 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on EYW to MIA during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →