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

Denver, CO (DEN) to Birmingham, AL (BHM) flight delay odds

73.4% of 1,192 official scheduled DEN-to-BHM flights arrived on time; 16.7% arrived at least 30 minutes late and 0.5% 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
73.4%arrived on time
16.7%30+ min late
0.5%cancelled
1,192scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.6%all scheduled flights
120+ minutes late3.1%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+7.8 mincompleted flights

Which departure time was most reliable for DEN to BHM?

Among qualifying DEN-to-BHM departure window results, Late morning had the highest on-time rate: 78.8% of 481 flights. Afternoon was lowest at 68.8% across 96 flights.

Departure windowFlightsOn time30+ minCancelled
Late morning48178.8%11.4%0.4%
Afternoon9668.8%17.7%0.0%
Evening58869.7%20.7%0.7%

Which weekday was most reliable for DEN to BHM?

Among qualifying DEN-to-BHM weekday results, Tuesday had the highest on-time rate: 77.8% of 176 flights. Thursday was lowest at 67.8% across 171 flights.

DayFlightsOn time30+ minCancelled
Monday17373.4%15.6%0.6%
Tuesday17677.8%14.2%0.0%
Wednesday17274.4%16.9%0.0%
Thursday17167.8%19.9%1.2%
Friday17268.6%18.0%1.2%
Saturday15675.6%13.5%0.6%
Sunday17276.2%18.6%0.0%

Which airline was most reliable for DEN to BHM?

Among qualifying DEN-to-BHM airline results, SkyWest Airlines had the highest on-time rate: 80.1% of 667 flights. Southwest Airlines was lowest at 64.0% across 464 flights.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines66780.1%12.9%0.3%
Southwest Airlines46464.0%22.4%0.9%
United Airlines6172.1%14.8%0.0%

Which month was most reliable for DEN to BHM?

Among qualifying DEN-to-BHM month results, November 2025 had the highest on-time rate: 86.4% of 88 flights. June 2026 was lowest at 57.8% across 116 flights.

MonthFlightsOn time30+ minCancelled
July 20259363.4%26.9%2.2%
August 20259366.7%18.3%1.1%
September 20258974.2%16.9%0.0%
October 20259380.6%8.6%0.0%
November 20258886.4%13.6%0.0%
December 20259373.1%21.5%0.0%
January 20269386.0%9.7%0.0%
February 20268479.8%7.1%0.0%
March 202611674.1%16.4%2.6%
April 202611676.7%13.8%0.0%
May 202611867.8%16.1%0.0%
June 202611657.8%28.4%0.0%

What drove DEN to BHM delay minutes?

Late aircraft was the largest recorded DEN-to-BHM delay category, accounting for 43.2% of 18,202 BTS-attributed delay minutes during July 2025–June 2026.

Airline38.3%
Late aircraft43.2%
National airspace14.9%
Weather3.6%
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.