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

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

Historically, 67.4% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 439 flights.

HISTORICAL ROUTE SIGNALVariable
67.4%arrived on time
25.1%30+ min late
1.1%cancelled
439scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late12.5%all scheduled flights
120+ minutes late4.1%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+13.7 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
Late morning10484.6%9.6%1.0%
Afternoon33362.2%29.7%1.2%

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
Monday5560.0%25.5%1.8%
Tuesday5874.1%20.7%0.0%
Wednesday5766.7%24.6%1.8%
Thursday5757.9%29.8%3.5%
Friday5658.9%35.7%0.0%
Saturday8578.8%16.5%0.0%
Sunday7169.0%26.8%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 Airways18067.2%25.6%1.1%
Republic Airways13576.3%17.0%0.0%
Envoy Air12458.1%33.1%2.4%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 20257375.3%15.1%4.1%
August 20257187.3%9.9%0.0%
September 20256963.8%29.0%1.4%
October 20256443.8%48.4%1.6%
November 2025366.7%33.3%0.0%
April 20262867.9%17.9%0.0%
May 20266765.7%25.4%0.0%
June 20266465.6%28.1%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.

Airline7.2%
Late aircraft25.3%
National airspace57.2%
Weather10.2%
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.