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

Boston, MA (BOS) to Charlotte, NC (CLT) flight delay odds

Historically, 80.3% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 4,017 flights.

HISTORICAL ROUTE SIGNALVariable
80.3%arrived on time
12.2%30+ min late
2.7%cancelled
4,017scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.9%all scheduled flights
120+ minutes late3.2%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+0.8 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 morning1,14489.9%5.0%2.5%
Late morning88684.5%10.4%1.8%
Afternoon1,11176.4%14.0%2.6%
Evening87668.3%21.5%3.9%

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
Monday60977.7%12.3%5.4%
Tuesday56783.4%9.7%2.8%
Wednesday56284.9%9.1%1.6%
Thursday60477.3%16.1%1.5%
Friday59381.5%13.0%1.0%
Saturday49783.5%11.7%2.0%
Sunday58574.5%13.5%4.3%

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
American Airlines2,73581.8%11.3%2.3%
Republic Airways1,19977.6%13.7%3.4%
Spirit Airlines7869.2%24.4%2.6%
Envoy Air580.0%0.0%20.0%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 202535969.1%18.9%5.3%
August 202535386.4%9.3%0.8%
September 202531870.4%20.4%1.9%
October 202537075.9%15.1%1.1%
November 202534781.6%11.2%2.9%
December 202533183.1%11.8%0.3%
January 202629171.5%12.4%11.0%
February 202627576.0%10.9%8.7%
March 202632782.9%11.3%1.8%
April 202633990.6%6.8%0.0%
May 202635586.2%9.6%0.0%
June 202635287.2%9.1%0.9%

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.

Airline33.2%
Late aircraft45.0%
National airspace16.2%
Weather5.5%
Security0.1%
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.