ON TIMEBOARD

UA 2012 on time

United Airlines 2012: Baltimore to Denver at 4:23 p.m. (past 12 months)

On time
78%
306 flights · likely 73–83%
Cancelled
0.3%
of scheduled flights
Typical arrival
−5 min
median vs schedule
When late
+69 min
average delay
Similar flights
77%
UA, same route & hour

About 1 in 5 UA 2012 flights from Baltimore arrived 15+ minutes late, diverted or cancelled over the past year (22%); 0.3% were cancelled. The typical flight landed 5 minutes early.

UA 2012: BWI → DEN

Scheduled to leave Baltimore at 4:23 p.m. local time. Over the past year it arrived on time 78% of the time (306 flights), in line with other UA flights on the route at that hour (77%). Last seen in the data Aug 10, 2026.

Usually United Airlines's last flight of the day from Baltimore to Denver (100% of days). United Airlines's last BWI–DEN flight was cancelled 0.3% of the time, against 0.6% for its earlier ones. If it's cancelled, the next United Airlines flight is usually around 8:30 a.m. the next morning.

Month by month

40%70%100%Aug 2025: 61% on time (31 flights)61AugSep 2025: 83% on time (30 flights)83SepOct 2025: 88% on time (25 flights)88OctDec 2025: 77% on time (30 flights)77DecJan 2026: 81% on time (31 flights)81JanFeb 2026: 86% on time (28 flights)86FebMar 2026: 65% on time (31 flights)65MarApr 2026: 93% on time (30 flights)93AprMay 2026: 87% on time (31 flights)87MayJun 2026: 60% on time (30 flights)60JunJul 2026: 73% on time (30 flights)73JulAug 2026: too few flights (10 flights)Aug

By day of week

DayFlightsOn time
Monday4470%
Tuesday4489%
Wednesday4486%
Thursday4475%
Friday4475%
Saturday4377%
Sunday4377%

Why it was late

Air traffic & airport (NAS) 50%Late inbound plane 36%Airline (crew, maintenance, ops) 7%Severe weather 7%

All flights BWI → DEN · Connecting off UA 2012? Check the risk

Questions

How often is UA 2012 from BWI to DEN late?

United Airlines 2012 from Baltimore, MD to Denver, CO arrived 15 or more minutes late, was diverted or was cancelled on 22% of 306 scheduled flights between September 2025 and August 2026. 0.3% were cancelled.

Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check United Airlines for today's flight. Method.