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

Atlanta, GA (ATL) to Salt Lake City, UT (SLC) flight delay odds

82.5% of 2,965 official scheduled ATL-to-SLC flights arrived on time; 11.1% arrived at least 30 minutes late and 0.4% 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 SIGNALLower disruption
82.5%arrived on time
11.1%30+ min late
0.4%cancelled
2,965scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late5.2%all scheduled flights
120+ minutes late1.9%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+2.8 mincompleted flights

Which departure time was most reliable for ATL to SLC?

Among qualifying ATL-to-SLC departure window results, Early morning had the highest on-time rate: 88.3% of 383 flights. Night was lowest at 72.6% across 365 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning38388.3%6.3%1.0%
Late morning72587.9%6.5%0.6%
Afternoon75682.9%9.8%0.1%
Evening73678.7%15.1%0.1%
Night36572.6%20.3%0.5%

Which weekday was most reliable for ATL to SLC?

Among qualifying ATL-to-SLC weekday results, Wednesday had the highest on-time rate: 88.6% of 422 flights. Monday was lowest at 79.8% across 420 flights.

DayFlightsOn time30+ minCancelled
Monday42079.8%13.1%0.2%
Tuesday42785.0%9.6%0.2%
Wednesday42288.6%6.4%0.0%
Thursday41881.3%12.7%0.0%
Friday42081.7%11.0%0.7%
Saturday43781.2%11.7%0.7%
Sunday42179.8%13.5%1.0%

Which airline was most reliable for ATL to SLC?

Only Delta Air Lines met the ATL-to-SLC airline threshold: 82.5% of 2,959 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines2,95982.5%11.1%0.4%
Frontier Airlines666.7%33.3%0.0%

Which month was most reliable for ATL to SLC?

Among qualifying ATL-to-SLC month results, September 2025 had the highest on-time rate: 90.1% of 242 flights. January 2026 was lowest at 77.7% across 256 flights.

MonthFlightsOn time30+ minCancelled
July 202525078.0%17.6%0.0%
August 202525078.8%13.6%0.8%
September 202524290.1%5.8%0.0%
October 202525082.4%8.4%0.0%
November 202523985.8%9.6%0.0%
December 202525079.2%16.0%0.0%
January 202625677.7%10.9%2.0%
February 202623184.0%12.1%0.0%
March 202625681.6%12.5%1.6%
April 202625187.6%8.4%0.0%
May 202624885.5%7.7%0.0%
June 202624279.8%10.7%0.4%

What drove ATL to SLC delay minutes?

Airline was the largest recorded ATL-to-SLC delay category, accounting for 59.1% of 29,841 BTS-attributed delay minutes during July 2025–June 2026.

Airline59.1%
Late aircraft19.9%
National airspace15.3%
Weather5.7%
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.