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

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

Historically, 80.8% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 2,002 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
80.8%arrived on time
12.3%30+ min late
2.0%cancelled
2,002scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.0%all scheduled flights
120+ minutes late2.0%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival-0.6 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 morning74790.9%3.9%1.2%
Late morning41686.5%8.4%1.7%
Afternoon43971.1%20.7%1.8%
Evening39066.7%22.6%4.1%

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
Monday30575.1%14.8%4.6%
Tuesday30784.0%10.7%1.6%
Wednesday29679.1%14.5%1.7%
Thursday30181.1%10.3%1.3%
Friday30282.8%11.6%0.7%
Saturday19485.6%8.8%0.0%
Sunday29779.8%14.1%3.4%

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
Republic Airways1,91381.7%11.3%2.0%
Envoy Air7173.2%22.5%1.4%
Spirit Airlines1822.2%77.8%0.0%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 202517281.4%15.1%0.6%
August 202517587.4%6.9%1.1%
September 202518065.0%27.8%1.7%
October 202517973.7%17.3%1.7%
November 202515183.4%13.2%0.0%
December 202514881.1%9.5%1.4%
January 202616577.6%9.1%7.9%
February 202615380.4%8.5%7.8%
March 202617881.5%11.8%1.7%
April 202616482.3%12.2%0.0%
May 202616886.9%6.0%0.6%
June 202616990.5%8.3%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.

Airline19.8%
Late aircraft20.5%
National airspace56.0%
Weather3.5%
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.