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

Atlanta, GA (ATL) to Las Vegas, NV (LAS) flight delay odds

75.2% of 4,796 official scheduled ATL-to-LAS flights arrived on time; 15.0% arrived at least 30 minutes late and 0.8% 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
75.2%arrived on time
15.0%30+ min late
0.8%cancelled
4,796scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.4%all scheduled flights
120+ minutes late2.8%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+7.5 mincompleted flights

Which departure time was most reliable for ATL to LAS?

Among qualifying ATL-to-LAS departure window results, Early morning had the highest on-time rate: 89.1% of 930 flights. Night was lowest at 67.4% across 435 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning93089.1%4.4%0.5%
Late morning85176.3%13.4%0.9%
Afternoon95777.2%13.6%0.4%
Evening1,62367.5%21.0%0.9%
Night43567.4%21.4%1.4%

Which weekday was most reliable for ATL to LAS?

Among qualifying ATL-to-LAS weekday results, Wednesday had the highest on-time rate: 82.7% of 652 flights. Monday was lowest at 72.3% across 707 flights.

DayFlightsOn time30+ minCancelled
Monday70772.3%19.0%0.6%
Tuesday66375.7%14.5%0.2%
Wednesday65282.7%7.8%0.2%
Thursday70672.9%16.0%0.3%
Friday71274.7%15.9%1.1%
Saturday64676.0%14.4%1.1%
Sunday71072.5%16.8%2.0%

Which airline was most reliable for ATL to LAS?

Among qualifying ATL-to-LAS airline results, Spirit Airlines had the highest on-time rate: 81.7% of 186 flights. Frontier Airlines was lowest at 61.4% across 562 flights.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines3,32976.7%13.6%0.6%
Southwest Airlines71976.9%13.1%0.4%
Frontier Airlines56261.4%26.2%2.3%
Spirit Airlines18681.7%12.9%0.5%

Which month was most reliable for ATL to LAS?

Among qualifying ATL-to-LAS month results, September 2025 had the highest on-time rate: 80.5% of 389 flights. July 2025 was lowest at 68.3% across 419 flights.

MonthFlightsOn time30+ minCancelled
July 202541968.3%21.7%0.7%
August 202540476.5%13.1%1.0%
September 202538980.5%11.3%0.0%
October 202541575.4%14.7%0.0%
November 202539080.0%12.3%0.5%
December 202542778.9%12.4%1.6%
January 202639074.1%14.4%2.8%
February 202634075.6%13.2%0.0%
March 202640777.9%15.5%1.7%
April 202641974.0%12.9%0.2%
May 202640768.6%19.4%0.0%
June 202638972.8%18.5%0.5%

What drove ATL to LAS delay minutes?

Airline was the largest recorded ATL-to-LAS delay category, accounting for 44.8% of 68,734 BTS-attributed delay minutes during July 2025–June 2026.

Airline44.8%
Late aircraft29.9%
National airspace21.4%
Weather3.7%
Security0.2%
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.