ON TIMEBOARD

UA 2671 on time

United Airlines 2671: Denver to Raleigh at 5:45 p.m.; Tucson to Denver at 1:29 p.m. (past 12 months). Figures below the title are for DEN → RDU, its busiest leg

On time
76%
287 flights · likely 71–81%
Cancelled
0.7%
of scheduled flights
Typical arrival
−6 min
median vs schedule
When late
+73 min
average delay
Similar flights
76%
UA, same route & hour

About 1 in 4 UA 2671 flights from Denver arrived 15+ minutes late, diverted or cancelled over the past year (24%); 0.7% were cancelled. The typical flight landed 6 minutes early.

UA 2671: DEN → RDU

Scheduled to leave Denver at 5:45 p.m. local time. Over the past year it arrived on time 76% of the time (287 flights), in line with other UA flights on the route at that hour (76%). Last seen in the data Aug 10, 2026.

Usually United Airlines's last flight of the day from Denver to Raleigh (100% of days). United Airlines's last DEN–RDU flight was cancelled 0.5% of the time, against 0.3% for its earlier ones. If it's cancelled, the next United Airlines flight is usually around 9:49 a.m. the next morning.

Month by month

40%70%100%Oct 2025: too few flights (6 flights)OctNov 2025: 76% on time (29 flights)76NovDec 2025: 84% on time (31 flights)84DecJan 2026: 87% on time (31 flights)87JanFeb 2026: 82% on time (28 flights)82FebMar 2026: 77% on time (31 flights)77MarApr 2026: 90% on time (30 flights)90AprMay 2026: 84% on time (31 flights)84MayJun 2026: 57% on time (30 flights)57JunJul 2026: 53% on time (30 flights)53JulAug 2026: too few flights (10 flights)Aug

By day of week

DayFlightsOn time
Monday4262%
Tuesday4188%
Wednesday4178%
Thursday4073%
Friday4183%
Saturday4075%
Sunday4276%

Why it was late

Late inbound plane 52%Airline (crew, maintenance, ops) 24%Air traffic & airport (NAS) 24%

All flights DEN → RDU · Connecting off UA 2671? Check the risk

UA 2671: TUS → DEN

Scheduled to leave Tucson at 1:29 p.m. local time. Over the past year it arrived on time 79% of the time (165 flights), in line with other UA flights on the route at that hour (80%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Feb 2026: 76% on time (17 flights)76FebMar 2026: 84% on time (31 flights)84MarApr 2026: 87% on time (30 flights)87AprMay 2026: 75% on time (20 flights)75MayJun 2026: too few flights (6 flights)JunJul 2026: 77% on time (30 flights)77JulAug 2026: 77% on time (31 flights)77Aug

By day of week

DayFlightsOn time
Monday2483%
Tuesday2391%
Wednesday2357%
Thursday2483%
Friday2483%
Saturday2374%
Sunday2483%

Why it was late

Air traffic & airport (NAS) 67%Late inbound plane 15%Airline (crew, maintenance, ops) 10%Severe weather 8%

All flights TUS → DEN · Connecting off UA 2671? Check the risk

Questions

How often is UA 2671 from DEN to RDU late?

United Airlines 2671 from Denver, CO to Raleigh/Durham, NC arrived 15 or more minutes late, was diverted or was cancelled on 24% of 287 scheduled flights between September 2025 and August 2026. 0.7% were cancelled.

How often is UA 2671 from TUS to DEN late?

United Airlines 2671 from Tucson, AZ to Denver, CO arrived 15 or more minutes late, was diverted or was cancelled on 21% of 165 scheduled flights between September 2025 and August 2026. 0.0% 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.