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

Boston, MA (BOS) to Wilmington, NC (ILM) flight delay odds

Historically, 85.0% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 439 flights.

HISTORICAL ROUTE SIGNALLower disruption
85.0%arrived on time
8.9%30+ min late
0.2%cancelled
439scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late4.6%all scheduled flights
120+ minutes late0.7%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival-1.8 mincompleted flights

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

Departure windowFlightsOn time30+ minCancelled
Early morning10488.5%5.8%1.0%
Late morning30086.3%7.3%0.0%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

DayFlightsOn time30+ minCancelled
Monday5587.3%7.3%0.0%
Tuesday5893.1%1.7%0.0%
Wednesday5791.2%3.5%0.0%
Thursday5780.7%14.0%0.0%
Friday5675.0%16.1%0.0%
Saturday8582.4%11.8%0.0%
Sunday7185.9%7.0%1.4%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

AirlineFlightsOn time30+ minCancelled
JetBlue Airways18082.2%12.2%0.6%
Republic Airways13587.4%5.9%0.0%
Envoy Air12486.3%7.3%0.0%

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

MonthFlightsOn time30+ minCancelled
July 20257389.0%5.5%1.4%
August 20257190.1%4.2%0.0%
September 20256987.0%2.9%0.0%
October 20256481.2%14.1%0.0%
November 2025366.7%33.3%0.0%
April 20262889.3%7.1%0.0%
May 20266780.6%9.0%0.0%
June 20266479.7%18.8%0.0%

What drove reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

Airline31.1%
Late aircraft41.0%
National airspace26.7%
Weather1.1%
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.