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

Baltimore, MD (BWI) to Denver, CO (DEN) flight delay odds

74.5% of 2,867 official scheduled BWI-to-DEN flights arrived on time; 14.2% arrived at least 30 minutes late and 1.1% 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
74.5%arrived on time
14.2%30+ min late
1.1%cancelled
2,867scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.9%all scheduled flights
120+ minutes late2.5%all scheduled flights
Diverted0.4%did not reach as scheduled
Average arrival+7.8 mincompleted flights

Which departure time was most reliable for BWI to DEN?

Among qualifying BWI-to-DEN departure window results, Early morning had the highest on-time rate: 86.8% of 881 flights. Night was lowest at 50.9% across 57 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning88186.8%5.0%0.9%
Late morning41685.3%6.2%1.0%
Afternoon96768.7%18.2%1.2%
Evening54659.2%26.2%1.3%
Night5750.9%29.8%1.8%

Which weekday was most reliable for BWI to DEN?

Among qualifying BWI-to-DEN weekday results, Tuesday had the highest on-time rate: 81.9% of 409 flights. Wednesday was lowest at 71.9% across 402 flights.

DayFlightsOn time30+ minCancelled
Monday43675.2%12.2%1.8%
Tuesday40981.9%10.3%0.2%
Wednesday40271.9%15.7%0.5%
Thursday41472.9%15.9%1.0%
Friday43672.0%15.8%0.2%
Saturday37974.7%14.2%0.5%
Sunday39172.9%15.1%3.6%

Which airline was most reliable for BWI to DEN?

Among qualifying BWI-to-DEN airline results, United Airlines had the highest on-time rate: 84.8% of 902 flights. Frontier Airlines was lowest at 50.0% across 60 flights.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines1,90570.4%16.1%1.4%
United Airlines90284.8%8.4%0.6%
Frontier Airlines6050.0%38.3%0.0%

Which month was most reliable for BWI to DEN?

Among qualifying BWI-to-DEN month results, October 2025 had the highest on-time rate: 88.8% of 269 flights. December 2025 was lowest at 60.9% across 243 flights.

MonthFlightsOn time30+ minCancelled
July 202531761.8%26.8%2.8%
August 202528274.8%15.6%0.4%
September 202526683.8%11.3%0.0%
October 202526988.8%4.1%0.0%
November 202523783.1%8.9%0.8%
December 202524360.9%18.9%0.8%
January 202620074.5%8.5%4.5%
February 202618477.2%12.0%1.6%
March 202621167.3%17.1%2.8%
April 202620286.1%5.4%0.0%
May 202620877.9%12.0%0.0%
June 202624861.7%23.4%0.0%

What drove BWI to DEN delay minutes?

National airspace was the largest recorded BWI-to-DEN delay category, accounting for 32.6% of 40,728 BTS-attributed delay minutes during July 2025–June 2026.

Airline28.9%
Late aircraft30.8%
National airspace32.6%
Weather6.9%
Security0.8%
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.