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

Atlanta, GA (ATL) to Aspen, CO (ASE) flight delay odds

Historically, 67.3% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 450 flights.

HISTORICAL ROUTE SIGNALVariable
67.3%arrived on time
17.1%30+ min late
1.6%cancelled
450scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late11.3%all scheduled flights
120+ minutes late5.3%all scheduled flights
Diverted5.8%did not reach as scheduled
Average arrival+15.8 mincompleted flights

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

Departure windowFlightsOn time30+ minCancelled
Late morning33670.2%13.4%1.5%
Afternoon11458.8%28.1%1.8%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

DayFlightsOn time30+ minCancelled
Monday6464.1%20.3%0.0%
Tuesday6573.8%10.8%3.1%
Wednesday6479.7%7.8%0.0%
Thursday6366.7%14.3%0.0%
Friday6462.5%21.9%0.0%
Saturday6558.5%21.5%6.2%
Sunday6566.2%23.1%1.5%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines45067.3%17.1%1.6%

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

MonthFlightsOn time30+ minCancelled
July 20253167.7%16.1%0.0%
August 20253174.2%9.7%0.0%
September 20253086.7%10.0%0.0%
October 20253164.5%6.5%0.0%
November 20253080.0%10.0%0.0%
December 20254358.1%30.2%0.0%
January 20266259.7%16.1%6.5%
February 20265644.6%39.3%3.6%
March 20266272.6%17.7%0.0%
April 20263479.4%8.8%2.9%
May 202610100.0%0.0%0.0%
June 20263066.7%6.7%0.0%

What drove reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

Airline52.7%
Late aircraft0.0%
National airspace25.7%
Weather21.4%
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.