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

Dallas, TX (DAL) to Denver, CO (DEN) flight delay odds

68.0% of 3,002 official scheduled DAL-to-DEN flights arrived on time; 19.4% arrived at least 30 minutes late and 1.4% 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 SIGNALVariable
68.0%arrived on time
19.4%30+ min late
1.4%cancelled
3,002scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.9%all scheduled flights
120+ minutes late3.2%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+13.8 mincompleted flights

Which departure time was most reliable for DAL to DEN?

Among qualifying DAL-to-DEN departure window results, Early morning had the highest on-time rate: 84.9% of 634 flights. Evening was lowest at 52.3% across 662 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning63484.9%6.3%0.9%
Late morning50576.8%11.7%2.0%
Afternoon1,00265.5%20.5%1.4%
Evening66252.3%33.8%1.4%
Night19957.3%27.6%1.5%

Which weekday was most reliable for DAL to DEN?

Among qualifying DAL-to-DEN weekday results, Tuesday had the highest on-time rate: 72.8% of 419 flights. Thursday was lowest at 63.0% across 443 flights.

DayFlightsOn time30+ minCancelled
Monday45267.7%17.3%1.8%
Tuesday41972.8%17.4%1.4%
Wednesday40470.8%16.8%0.7%
Thursday44363.0%21.9%0.9%
Friday44767.8%19.7%1.1%
Saturday37168.5%21.6%2.2%
Sunday46666.3%21.2%1.7%

Which airline was most reliable for DAL to DEN?

Only Southwest Airlines met the DAL-to-DEN airline threshold: 68.0% of 3,002 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines3,00268.0%19.4%1.4%

Which month was most reliable for DAL to DEN?

Among qualifying DAL-to-DEN month results, January 2026 had the highest on-time rate: 79.5% of 249 flights. June 2026 was lowest at 57.0% across 263 flights.

MonthFlightsOn time30+ minCancelled
July 202528961.6%22.8%1.7%
August 202523762.9%21.5%0.0%
September 202522369.1%17.0%0.0%
October 202523769.2%19.8%0.4%
November 202523470.5%15.0%5.1%
December 202525570.6%18.4%0.0%
January 202624979.5%8.0%3.6%
February 202623477.8%13.2%0.9%
March 202627071.9%20.7%0.4%
April 202625471.3%16.5%0.4%
May 202625757.2%28.4%1.9%
June 202626357.0%29.3%2.3%

What drove DAL to DEN delay minutes?

Late aircraft was the largest recorded DAL-to-DEN delay category, accounting for 43.2% of 52,510 BTS-attributed delay minutes during July 2025–June 2026.

Airline26.2%
Late aircraft43.2%
National airspace24.4%
Weather6.1%
Security0.1%
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.