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

Los Angeles, CA (LAX) to Philadelphia, PA (PHL) flight delay odds

77.3% of 2,412 official scheduled LAX-to-PHL flights arrived on time; 12.6% arrived at least 30 minutes late and 1.7% 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
77.3%arrived on time
12.6%30+ min late
1.7%cancelled
2,412scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.3%all scheduled flights
120+ minutes late3.6%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+6.1 mincompleted flights

Which departure time was most reliable for LAX to PHL?

Among qualifying LAX-to-PHL departure window results, Early morning had the highest on-time rate: 86.0% of 566 flights. Late morning was lowest at 71.1% across 436 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning56686.0%5.7%1.8%
Late morning43671.1%17.2%1.1%
Afternoon65172.8%17.4%1.8%
Night75978.1%11.2%1.7%

Which weekday was most reliable for LAX to PHL?

Among qualifying LAX-to-PHL weekday results, Tuesday had the highest on-time rate: 79.7% of 345 flights. Sunday was lowest at 72.9% across 351 flights.

DayFlightsOn time30+ minCancelled
Monday35277.8%13.1%1.7%
Tuesday34579.7%11.0%1.7%
Wednesday32878.0%11.3%0.9%
Thursday34775.5%13.5%0.9%
Friday35979.4%12.5%1.1%
Saturday33077.6%13.0%1.8%
Sunday35172.9%14.0%3.4%

Which airline was most reliable for LAX to PHL?

Among qualifying LAX-to-PHL airline results, American Airlines had the highest on-time rate: 78.3% of 2,322 flights. Frontier Airlines was lowest at 48.8% across 86 flights.

AirlineFlightsOn time30+ minCancelled
American Airlines2,32278.3%11.8%1.6%
Frontier Airlines8648.8%36.0%3.5%
Spirit Airlines475.0%0.0%0.0%

Which month was most reliable for LAX to PHL?

Among qualifying LAX-to-PHL month results, April 2026 had the highest on-time rate: 85.9% of 198 flights. July 2025 was lowest at 61.0% across 264 flights.

MonthFlightsOn time30+ minCancelled
July 202526461.0%23.9%4.9%
August 202525276.2%16.3%0.4%
September 202520980.4%9.6%0.5%
October 202524381.9%9.5%0.0%
November 202516672.3%16.3%0.0%
December 202517380.9%11.0%0.6%
January 202615570.3%12.9%6.5%
February 202613978.4%7.2%4.3%
March 202615580.0%13.5%1.3%
April 202619885.9%7.1%0.5%
May 202622483.9%9.4%0.0%
June 202623478.6%11.1%2.1%

What drove LAX to PHL delay minutes?

Late aircraft was the largest recorded LAX-to-PHL delay category, accounting for 52.5% of 39,859 BTS-attributed delay minutes during July 2025–June 2026.

Airline36.1%
Late aircraft52.5%
National airspace10.9%
Weather0.1%
Security0.4%
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.