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

Philadelphia, PA (PHL) to Salt Lake City, UT (SLC) flight delay odds

74.9% of 833 official scheduled PHL-to-SLC flights arrived on time; 12.7% arrived at least 30 minutes late and 2.4% 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
74.9%arrived on time
12.7%30+ min late
2.4%cancelled
833scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.2%all scheduled flights
120+ minutes late3.1%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+8.6 mincompleted flights

Which departure time was most reliable for PHL to SLC?

Among qualifying PHL-to-SLC departure window results, Early morning had the highest on-time rate: 83.0% of 364 flights. Evening was lowest at 68.4% across 456 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning36483.0%6.0%1.6%
Evening45668.4%18.4%2.9%

Which weekday was most reliable for PHL to SLC?

Among qualifying PHL-to-SLC weekday results, Tuesday had the highest on-time rate: 79.4% of 107 flights. Thursday was lowest at 69.2% across 130 flights.

DayFlightsOn time30+ minCancelled
Monday13175.6%13.0%3.1%
Tuesday10779.4%8.4%3.7%
Wednesday10675.5%13.2%1.9%
Thursday13069.2%14.6%2.3%
Friday13076.2%12.3%0.8%
Saturday10076.0%11.0%1.0%
Sunday12973.6%15.5%3.9%

Which airline was most reliable for PHL to SLC?

Among qualifying PHL-to-SLC airline results, Delta Air Lines had the highest on-time rate: 77.2% of 613 flights. American Airlines was lowest at 68.6% across 220 flights.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines61377.2%10.8%1.3%
American Airlines22068.6%18.2%5.5%

Which month was most reliable for PHL to SLC?

Among qualifying PHL-to-SLC month results, April 2026 had the highest on-time rate: 92.0% of 88 flights. December 2025 was lowest at 50.8% across 63 flights.

MonthFlightsOn time30+ minCancelled
July 20259254.3%26.1%6.5%
August 20258773.6%18.4%2.3%
September 20254885.4%6.2%0.0%
October 20254887.5%6.2%0.0%
November 20254484.1%6.8%0.0%
December 20256350.8%22.2%3.2%
January 20264969.4%10.2%4.1%
February 20266770.1%11.9%7.5%
March 20268977.5%12.4%1.1%
April 20268892.0%3.4%0.0%
May 20268286.6%6.1%1.2%
June 20267673.7%14.5%1.3%

What drove PHL to SLC delay minutes?

Airline was the largest recorded PHL-to-SLC delay category, accounting for 42.7% of 12,485 BTS-attributed delay minutes during July 2025–June 2026.

Airline42.7%
Late aircraft25.4%
National airspace28.0%
Weather3.8%
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.