ON TIMEBOARD

UA 4709 on time

United Airlines 4709: Grand Junction to Denver at 11:19 a.m. (past 12 months)

On time
82%
364 flights · likely 78–86%
Cancelled
2.2%
of scheduled flights
Typical arrival
−9 min
median vs schedule
When late
+65 min
average delay
Similar flights
82%
UA, same route & hour

About 1 in 6 UA 4709 flights from Grand Junction arrived 15+ minutes late, diverted or cancelled over the past year (18%); 2.2% were cancelled. The typical flight landed 9 minutes early.

UA 4709: GJT → DEN

Scheduled to leave Grand Junction at 11:19 a.m. local time, operated by SkyWest as OO 4709. Over the past year it arrived on time 82% of the time (364 flights), in line with other UA flights on the route at that hour (82%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 90% on time (30 flights)90SepOct 2025: 87% on time (31 flights)87OctNov 2025: 77% on time (30 flights)77NovDec 2025: 81% on time (31 flights)81DecJan 2026: 90% on time (31 flights)90JanFeb 2026: 82% on time (28 flights)82FebMar 2026: 71% on time (31 flights)71MarApr 2026: 77% on time (30 flights)77AprMay 2026: 77% on time (30 flights)77MayJun 2026: 87% on time (30 flights)87JunJul 2026: 97% on time (31 flights)97JulAug 2026: 74% on time (31 flights)74Aug

By day of week

DayFlightsOn time
Monday5385%
Tuesday5279%
Wednesday5285%
Thursday5285%
Friday5281%
Saturday5279%
Sunday5184%

Why it was late

Air traffic & airport (NAS) 33%Late inbound plane 30%Airline (crew, maintenance, ops) 29%Severe weather 7%Security 1%

All flights GJT → DEN · Connecting off UA 4709? Check the risk

Questions

How often is UA 4709 from GJT to DEN late?

United Airlines 4709 from Grand Junction, CO to Denver, CO arrived 15 or more minutes late, was diverted or was cancelled on 18% of 364 scheduled flights between September 2025 and August 2026. 2.2% 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.