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

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

80.8% of 2,002 official scheduled CMH-to-BOS flights arrived on time; 12.3% arrived at least 30 minutes late and 2.0% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

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

Which departure time was most reliable for CMH to BOS?

Among qualifying CMH-to-BOS departure window results, Early morning had the highest on-time rate: 90.9% of 747 flights. Evening was lowest at 66.7% across 390 flights.

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%

Which weekday was most reliable for CMH to BOS?

Among qualifying CMH-to-BOS weekday results, Saturday had the highest on-time rate: 85.6% of 194 flights. Monday was lowest at 75.1% across 305 flights.

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%

Which airline was most reliable for CMH to BOS?

Among qualifying CMH-to-BOS airline results, Republic Airways had the highest on-time rate: 81.7% of 1,913 flights. Envoy Air was lowest at 73.2% across 71 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%

Which month was most reliable for CMH to BOS?

Among qualifying CMH-to-BOS month results, June 2026 had the highest on-time rate: 90.5% of 169 flights. September 2025 was lowest at 65.0% across 180 flights.

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 CMH to BOS delay minutes?

National airspace was the largest recorded CMH-to-BOS delay category, accounting for 56.0% of 21,442 BTS-attributed delay minutes during July 2025–June 2026.

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.