BOS to ILM flight delays
Boston, MA (BOS) Wilmington, NC (ILM) · 672 miles
439 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
85.16%
Arrived on time
Within 15 minutes of schedule
0.23%
Cancelled
Share of scheduled flights
52 min
When late, late by
Average across delayed arrivals
9 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The two directions do not behave alike. ILM to BOS arrives on time 17 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 route does better than its own airport. Departures from BOS overall run 8.3 points less punctual than this particular one — so whatever congestion BOS has, this route is largely escaping it.
This is a thin route — 439 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.
Flights from Boston to Wilmington keep to schedule more reliably than most. On a route this punctual the day you fly matters more than the airline you pick.
Which airline should you fly on this route?
Over January 2025 – August 2026, Republic Airways arrived on time most often on BOS to ILM. JetBlue Airways was late most often. Flights ran closest to schedule in July and worst in November.
Every airline on BOS to ILM
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 |
|---|---|---|---|---|---|
| JetBlue Airways | 180 | 82.68% | 0.56% | 67 min | B |
| Republic Airways | 135 | 87.41% | 0% | 39 min | A |
| Envoy Air | 124 | 86.29% | 0% | 39 min | A |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
ILM to BOS Wilmington back to Boston 68.2% on time DOther routes from Boston
Common questions
Are flights from Boston to Wilmington usually delayed?
85.16% of flights on the BOS to ILM 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 Boston to Wilmington?
Republic Airways, at 87.41% on time across 135 flights. The least punctual on the route was JetBlue Airways at 82.68%.
How often are BOS to ILM flights cancelled?
0.23% of scheduled flights did not operate — about 2 in every thousand. That is in the normal range.
What is the best month to fly Boston to Wilmington?
July, when 90.3% of flights arrived on time. The worst was June at 79.7%.
When BOS to ILM flights are late, how late are they?
About 52 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 BOS to ILM 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 →