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

Washington, DC (DCA) to Philadelphia, PA (PHL) flight delay odds

62.9% of 819 official scheduled DCA-to-PHL flights arrived on time; 23.6% arrived at least 30 minutes late and 3.3% 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
62.9%arrived on time
23.6%30+ min late
3.3%cancelled
819scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late13.6%all scheduled flights
120+ minutes late6.7%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+21.7 mincompleted flights

Which departure time was most reliable for DCA to PHL?

Among qualifying DCA-to-PHL departure window results, Early morning had the highest on-time rate: 96.7% of 121 flights. Evening was lowest at 54.8% across 84 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning12196.7%2.5%0.0%
Afternoon57957.9%27.5%2.4%
Evening8454.8%28.6%4.8%

Which weekday was most reliable for DCA to PHL?

Among qualifying DCA-to-PHL weekday results, Saturday had the highest on-time rate: 69.5% of 118 flights. Thursday was lowest at 55.6% across 117 flights.

DayFlightsOn time30+ minCancelled
Monday11764.1%18.8%6.0%
Tuesday12066.7%20.0%2.5%
Wednesday11760.7%25.6%3.4%
Thursday11755.6%33.3%0.9%
Friday11862.7%22.0%4.2%
Saturday11869.5%21.2%0.8%
Sunday11260.7%24.1%5.4%

Which airline was most reliable for DCA to PHL?

Among qualifying DCA-to-PHL airline results, Republic Airways had the highest on-time rate: 81.2% of 218 flights. PSA Airlines was lowest at 56.2% across 601 flights.

AirlineFlightsOn time30+ minCancelled
PSA Airlines60156.2%29.1%3.8%
Republic Airways21881.2%8.3%1.8%

Which month was most reliable for DCA to PHL?

Among qualifying DCA-to-PHL month results, September 2025 had the highest on-time rate: 83.0% of 88 flights. December 2025 was lowest at 47.5% across 61 flights.

MonthFlightsOn time30+ minCancelled
July 20258958.4%24.7%12.4%
August 20256675.8%18.2%0.0%
September 20258883.0%9.1%1.1%
October 20259371.0%16.1%0.0%
November 20256065.0%26.7%0.0%
December 20256147.5%26.2%1.6%
January 20266251.6%25.8%6.5%
February 20265653.6%33.9%7.1%
March 20266248.4%43.5%1.6%
April 20266068.3%23.3%0.0%
May 20266269.4%14.5%1.6%
June 20266050.0%31.7%6.7%

What drove DCA to PHL delay minutes?

Late aircraft was the largest recorded DCA-to-PHL delay category, accounting for 56.5% of 22,726 BTS-attributed delay minutes during July 2025–June 2026.

Airline20.7%
Late aircraft56.5%
National airspace10.8%
Weather11.5%
Security0.6%
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.