ILM to MIA flight delays
Wilmington, NC (ILM) Miami, FL (MIA) · 601 miles
456 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
85.39%
Arrived on time
Within 15 minutes of schedule
1.75%
Cancelled
Share of scheduled flights
84 min
When late, late by
Average across delayed arrivals
13 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The shape of the lateness matters here. Flights on this route are not late often, but when they are late they are late by about 84 minutes — long enough to lose a connection or an evening. The on-time percentage looks reassuring and understates the consequence of being on the wrong flight.
The season swings this route hard. In April it ran 23.1 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 ILM arrives on time 7.8 points less 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.
This is a thin route — 456 flights across the whole period. On a route this infrequent a cancellation is far more costly than the rate suggests, because the next departure may not be the same day.
Which airline should you fly on this route?
Over January 2025 – August 2026, Envoy Air arrived on time most often on ILM to MIA. American Airlines was late most often. Flights ran closest to schedule in April and worst in March.
Every airline on ILM 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 | 250 | 88.31% | 0.4% | 62 min | A |
| American Airlines | 187 | 82.68% | 3.21% | 110 min | C |
| Republic Airways | 19 | 72.22% | 5.26% | 49 min | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
MIA to ILM Miami back to Wilmington 77.63% on time CCommon questions
Are flights from Wilmington to Miami usually delayed?
85.39% of flights on the ILM to MIA route arrived within 15 minutes of schedule, so roughly 1 in every ten arrived late. That is better than the average route in this record.
Which airline is most on time from Wilmington to Miami?
Envoy Air, at 88.31% on time across 250 flights. The least punctual on the route was American Airlines at 82.68%.
How often are ILM to MIA flights cancelled?
1.75% of scheduled flights did not operate — about 18 in every thousand. That is in the normal range.
What is the best month to fly Wilmington to Miami?
April, when 95.5% of flights arrived on time. The worst was March at 72.4%.
When ILM to MIA flights are late, how late are they?
About 84 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 ILM 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 →