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

Dallas/Fort Worth, TX (DFW) to Aspen, CO (ASE) flight delay odds

Historically, 61.8% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 1,187 flights.

HISTORICAL ROUTE SIGNALHigher disruption
61.8%arrived on time
20.1%30+ min late
4.7%cancelled
1,187scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late12.0%all scheduled flights
120+ minutes late5.0%all scheduled flights
Diverted6.3%did not reach as scheduled
Average arrival+14.2 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
Early morning21669.9%14.8%4.2%
Late morning35465.8%17.5%2.8%
Afternoon39553.4%24.6%5.3%
Evening22262.6%21.2%7.2%

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
Monday17061.2%22.9%2.9%
Tuesday16570.3%16.4%2.4%
Wednesday16175.2%9.9%4.3%
Thursday17072.4%16.5%1.8%
Friday17053.5%23.5%6.5%
Saturday18047.2%30.6%10.0%
Sunday17155.0%19.3%4.7%

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 Airlines1,18761.8%20.1%4.7%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 202512366.7%14.6%2.4%
August 202512465.3%17.7%0.8%
September 20258878.4%17.0%1.1%
October 20256774.6%11.9%0.0%
November 20255972.9%18.6%1.7%
December 202511451.8%33.3%0.0%
January 202616058.1%19.4%10.6%
February 202614345.5%27.3%10.5%
March 202615952.8%20.1%7.5%
April 20264682.6%13.0%2.2%
May 20261877.8%5.6%0.0%
June 20268665.1%19.8%5.8%

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.

Airline43.3%
Late aircraft8.4%
National airspace25.7%
Weather22.7%
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.