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

Boston, MA (BOS) to Columbus, OH (CMH) flight delay odds

Historically, 78.5% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 2,000 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
78.5%arrived on time
13.7%30+ min late
2.3%cancelled
2,000scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.7%all scheduled flights
120+ minutes late2.8%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+2.5 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 morning46390.3%4.3%1.3%
Late morning25084.0%8.0%2.4%
Afternoon69681.0%13.2%1.3%
Evening58164.0%23.8%4.3%

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
Monday30573.4%16.1%4.9%
Tuesday30678.1%12.4%4.2%
Wednesday29681.4%10.8%1.4%
Thursday30082.7%11.7%1.7%
Friday30278.8%12.9%0.0%
Saturday19482.5%13.4%0.0%
Sunday29774.4%18.2%3.0%

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
Republic Airways1,91178.3%13.9%2.4%
Envoy Air7181.7%9.9%0.0%
Spirit Airlines1894.4%0.0%0.0%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 202517273.3%14.5%2.3%
August 202517583.4%10.9%1.1%
September 202518075.6%16.1%1.1%
October 202517972.1%21.2%0.6%
November 202515077.3%18.7%1.3%
December 202514879.1%17.6%0.7%
January 202616476.8%10.4%9.1%
February 202615374.5%10.5%7.8%
March 202617877.0%14.0%1.7%
April 202616484.8%10.4%0.0%
May 202616882.7%11.3%1.2%
June 202616986.4%8.3%1.2%

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.

Airline29.0%
Late aircraft54.3%
National airspace13.7%
Weather2.8%
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.