ON TIMEBOARD

UA 1959 on time

United Airlines 1959: Anchorage to Denver at 11:59 p.m. (past 12 months)

On time
87%
317 flights · likely 83–90%
Cancelled
0.9%
of scheduled flights
Typical arrival
−12 min
median vs schedule
When late
+88 min
average delay
Similar flights
87%
UA, same route & hour

About 1 in 8 UA 1959 flights from Anchorage arrived 15+ minutes late, diverted or cancelled over the past year (13%); 0.9% were cancelled. The typical flight landed 12 minutes early.

UA 1959: ANC → DEN

Scheduled to leave Anchorage at 11:59 p.m. local time. Over the past year it arrived on time 87% of the time (317 flights), in line with other UA flights on the route at that hour (87%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 93% on time (30 flights)93SepOct 2025: 94% on time (31 flights)94OctNov 2025: 80% on time (30 flights)80NovDec 2025: 81% on time (31 flights)81DecJan 2026: 84% on time (19 flights)84JanFeb 2026: 88% on time (25 flights)88FebMar 2026: 71% on time (31 flights)71MarApr 2026: 93% on time (30 flights)93AprMay 2026: 96% on time (28 flights)96MayJun 2026: too few flights (12 flights)JunJul 2026: 86% on time (21 flights)86JulAug 2026: 90% on time (29 flights)90Aug

By day of week

DayFlightsOn time
Monday4885%
Tuesday3897%
Wednesday3887%
Thursday4789%
Friday4785%
Saturday4984%
Sunday5082%

Why it was late

Airline (crew, maintenance, ops) 62%Late inbound plane 31%Air traffic & airport (NAS) 6%Severe weather 2%

All flights ANC → DEN · Connecting off UA 1959? Check the risk

Questions

How often is UA 1959 from ANC to DEN late?

United Airlines 1959 from Anchorage, AK to Denver, CO arrived 15 or more minutes late, was diverted or was cancelled on 13% of 317 scheduled flights between September 2025 and August 2026. 0.9% 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.