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

Columbus, OH (CMH) to Philadelphia, PA (PHL) flight delay odds

76.9% of 1,378 official scheduled CMH-to-PHL flights arrived on time; 13.3% arrived at least 30 minutes late and 3.2% 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 SIGNALVariable
76.9%arrived on time
13.3%30+ min late
3.2%cancelled
1,378scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.8%all scheduled flights
120+ minutes late3.0%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+6.1 mincompleted flights

Which departure time was most reliable for CMH to PHL?

Among qualifying CMH-to-PHL departure window results, Early morning had the highest on-time rate: 86.6% of 508 flights. Evening was lowest at 63.5% across 244 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning50886.6%6.5%2.2%
Late morning23782.3%9.3%2.1%
Afternoon38969.2%18.3%3.9%
Evening24463.5%23.4%5.3%

Which weekday was most reliable for CMH to PHL?

Among qualifying CMH-to-PHL weekday results, Saturday had the highest on-time rate: 84.4% of 160 flights. Monday was lowest at 71.3% across 209 flights.

DayFlightsOn time30+ minCancelled
Monday20971.3%14.4%6.2%
Tuesday20083.0%9.0%3.0%
Wednesday19474.7%16.0%3.1%
Thursday20573.2%17.1%2.4%
Friday20679.1%12.6%1.5%
Saturday16084.4%8.1%2.5%
Sunday20474.0%14.7%3.4%

Which airline was most reliable for CMH to PHL?

Among qualifying CMH-to-PHL airline results, Republic Airways had the highest on-time rate: 85.4% of 542 flights. American Airlines was lowest at 69.8% across 490 flights.

AirlineFlightsOn time30+ minCancelled
Republic Airways54285.4%7.0%1.5%
American Airlines49069.8%18.6%3.5%
PSA Airlines34673.4%15.6%5.5%

Which month was most reliable for CMH to PHL?

Among qualifying CMH-to-PHL month results, April 2026 had the highest on-time rate: 91.3% of 103 flights. July 2025 was lowest at 48.8% across 127 flights.

MonthFlightsOn time30+ minCancelled
July 202512748.8%26.8%7.9%
August 202516975.1%17.2%3.0%
September 202512677.8%13.5%0.8%
October 202516576.4%13.9%1.2%
November 20258881.8%12.5%1.1%
December 20259174.7%11.0%5.5%
January 20268578.8%8.2%7.1%
February 20266081.7%10.0%5.0%
March 20265874.1%13.8%5.2%
April 202610391.3%4.9%0.0%
May 202613884.1%10.9%1.4%
June 202616881.5%10.7%3.6%

What drove CMH to PHL delay minutes?

Late aircraft was the largest recorded CMH-to-PHL delay category, accounting for 46.5% of 21,362 BTS-attributed delay minutes during July 2025–June 2026.

Airline26.7%
Late aircraft46.5%
National airspace22.6%
Weather4.1%
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.