ON TIMEBOARD

UA 1787 on time

United Airlines 1787: Portland to Denver at 4:15 p.m.; Denver to Omaha at 9:05 p.m. (past 12 months). Figures below the title are for PDX → DEN, its busiest leg

On time
82%
251 flights · likely 76–86%
Cancelled
0.0%
of scheduled flights
Typical arrival
−6 min
median vs schedule
When late
+55 min
average delay
Similar flights
81%
UA, same route & hour

About 1 in 5 UA 1787 flights from Portland arrived 15+ minutes late, diverted or cancelled over the past year (18%); 0.0% were cancelled. The typical flight landed 6 minutes early.

UA 1787: PDX → DEN

Scheduled to leave Portland at 4:15 p.m. local time. Over the past year it arrived on time 82% of the time (251 flights), in line with other UA flights on the route at that hour (81%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Dec 2025: too few flights (14 flights)DecJan 2026: 85% on time (27 flights)85JanFeb 2026: 85% on time (27 flights)85FebMar 2026: 94% on time (31 flights)94MarApr 2026: 90% on time (30 flights)90AprMay 2026: 87% on time (31 flights)87MayJun 2026: 73% on time (30 flights)73JunJul 2026: 77% on time (30 flights)77JulAug 2026: 65% on time (31 flights)65Aug

By day of week

DayFlightsOn time
Monday3770%
Tuesday3683%
Wednesday3681%
Thursday3781%
Friday3784%
Saturday3194%
Sunday3781%

Why it was late

Late inbound plane 50%Air traffic & airport (NAS) 43%Airline (crew, maintenance, ops) 7%

All flights PDX → DEN · Connecting off UA 1787? Check the risk

UA 1787: DEN → OMA

Scheduled to leave Denver at 9:05 p.m. local time. Over the past year it arrived on time 67% of the time (202 flights), better than other UA flights on the route at that hour (62%). Last seen in the data Aug 31, 2026.

Usually United Airlines's last flight of the day from Denver to Omaha (100% of days). United Airlines's last DEN–OMA flight was cancelled 1.1% of the time, against 0.1% for its earlier ones. If it's cancelled, the next United Airlines flight is usually around 8:05 a.m. the next morning.

Month by month

20%60%100%Mar 2025: 69% on time (29 flights)69MarMay 2025: 55% on time (31 flights)55MayJun 2025: 32% on time (25 flights)32JunAug 2025: too few flights (13 flights)AugSep 2025: 67% on time (30 flights)67SepOct 2025: 84% on time (25 flights)84OctMar 2026: 79% on time (24 flights)79MarApr 2026: too few flights (1 flights)AprMay 2026: 65% on time (31 flights)65MayJun 2026: 67% on time (30 flights)67JunJul 2026: 60% on time (30 flights)60JulAug 2026: 52% on time (31 flights)52Aug

By day of week

DayFlightsOn time
Monday2969%
Tuesday2879%
Wednesday2850%
Thursday3067%
Friday3067%
Saturday2969%
Sunday2868%

Why it was late

Late inbound plane 57%Airline (crew, maintenance, ops) 27%Air traffic & airport (NAS) 15%Severe weather 1%

All flights DEN → OMA · Connecting off UA 1787? Check the risk

Questions

How often is UA 1787 from PDX to DEN late?

United Airlines 1787 from Portland, OR to Denver, CO arrived 15 or more minutes late, was diverted or was cancelled on 18% of 251 scheduled flights between September 2025 and August 2026. 0.0% were cancelled.

How often is UA 1787 from DEN to OMA late?

United Airlines 1787 from Denver, CO to Omaha, NE arrived 15 or more minutes late, was diverted or was cancelled on 33% of 202 scheduled flights between September 2025 and August 2026. 1.0% 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.