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

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

75.6% of 2,868 official scheduled DEN-to-BWI flights arrived on time; 13.5% arrived at least 30 minutes late and 1.2% 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
75.6%arrived on time
13.5%30+ min late
1.2%cancelled
2,868scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.3%all scheduled flights
120+ minutes late1.9%all scheduled flights
Diverted0.4%did not reach as scheduled
Average arrival+6.0 mincompleted flights

Which departure time was most reliable for DEN to BWI?

Among qualifying DEN-to-BWI departure window results, Early morning had the highest on-time rate: 90.9% of 595 flights. Evening was lowest at 57.3% across 654 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning59590.9%2.7%0.8%
Late morning61483.1%7.3%0.8%
Afternoon62367.7%17.5%2.4%
Evening65457.3%28.1%1.4%
Night38283.5%8.6%0.3%

Which weekday was most reliable for DEN to BWI?

Among qualifying DEN-to-BWI weekday results, Tuesday had the highest on-time rate: 80.0% of 409 flights. Sunday was lowest at 71.0% across 389 flights.

DayFlightsOn time30+ minCancelled
Monday43673.2%13.8%0.7%
Tuesday40980.0%10.8%0.0%
Wednesday40579.5%10.6%1.5%
Thursday41372.9%16.2%0.5%
Friday43476.7%14.7%1.2%
Saturday38275.7%12.6%0.8%
Sunday38971.0%15.7%4.1%

Which airline was most reliable for DEN to BWI?

Among qualifying DEN-to-BWI airline results, United Airlines had the highest on-time rate: 79.8% of 901 flights. Frontier Airlines was lowest at 71.7% across 60 flights.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines1,90773.7%14.4%1.5%
United Airlines90179.8%11.2%0.8%
Frontier Airlines6071.7%18.3%0.0%

Which month was most reliable for DEN to BWI?

Among qualifying DEN-to-BWI month results, October 2025 had the highest on-time rate: 86.6% of 269 flights. July 2025 was lowest at 58.4% across 317 flights.

MonthFlightsOn time30+ minCancelled
July 202531758.4%24.9%2.5%
August 202528270.9%15.6%1.1%
September 202526579.2%11.7%0.0%
October 202526986.6%6.7%0.0%
November 202523981.6%9.6%1.3%
December 202524077.9%13.3%0.8%
January 202620182.6%3.5%5.0%
February 202618580.5%10.3%2.7%
March 202621276.4%14.6%0.9%
April 202620382.8%9.4%0.0%
May 202620774.4%13.5%1.0%
June 202624863.7%22.6%0.0%

What drove DEN to BWI delay minutes?

Late aircraft was the largest recorded DEN-to-BWI delay category, accounting for 50.3% of 34,384 BTS-attributed delay minutes during July 2025–June 2026.

Airline30.7%
Late aircraft50.3%
National airspace18.2%
Weather0.8%
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.