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United Airlines / IAH → FLL

UA 277 on time

United Airlines 277: Houston to Fort Lauderdale at 4:50 p.m.; Los Angeles to Houston at 10:10 a.m. (past 12 months). Figures below the title are for IAH → FLL, its busiest leg

On time
82%
279 flights · likely 77–86%
Cancelled
0.7%
of scheduled flights
Typical arrival
−9 min
median vs schedule
When late
+57 min
average delay
Similar flights
84%
UA, same route & hour

About 1 in 6 UA 277 flights from Houston arrived 15+ minutes late, diverted or cancelled over the past year (18%); 0.7% were cancelled. The typical flight landed 9 minutes early.

UA 277: IAH → FLL

Scheduled to leave Houston at 4:50 p.m. local time. Over the past year it arrived on time 82% of the time (279 flights), in line with other UA flights on the route at that hour (84%). Last seen in the data Aug 10, 2026.

Month by month

40%70%100%Oct 2025: too few flights (6 flights)OctNov 2025: 90% on time (30 flights)90NovDec 2025: 87% on time (31 flights)87DecJan 2026: 100% on time (31 flights)100JanFeb 2026: 82% on time (28 flights)82FebMar 2026: 70% on time (27 flights)70MarApr 2026: 85% on time (26 flights)85AprMay 2026: 90% on time (31 flights)90MayJun 2026: 66% on time (29 flights)66JunJul 2026: 77% on time (30 flights)77JulAug 2026: too few flights (10 flights)Aug

By day of week

DayFlightsOn time
Monday4283%
Tuesday3394%
Wednesday4185%
Thursday4183%
Friday4168%
Saturday3982%
Sunday4281%

Why it was late

Late inbound plane 38%Air traffic & airport (NAS) 30%Airline (crew, maintenance, ops) 27%Severe weather 6%

All flights IAH → FLL · Connecting off UA 277? Check the risk

UA 277: LAX → IAH

Scheduled to leave Los Angeles at 10:10 a.m. local time. Over the past year it arrived on time 87% of the time (180 flights), in line with other UA flights on the route at that hour (89%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Mar 2026: 70% on time (27 flights)70MarApr 2026: 97% on time (30 flights)97AprMay 2026: 90% on time (31 flights)90MayJun 2026: 87% on time (30 flights)87JunJul 2026: 87% on time (31 flights)87JulAug 2026: 90% on time (31 flights)90Aug

By day of week

DayFlightsOn time
Monday2688%
Tuesday2584%
Wednesday2584%
Thursday2692%
Friday2681%
Saturday2688%
Sunday2692%

Why it was late

Late inbound plane 51%Air traffic & airport (NAS) 24%Airline (crew, maintenance, ops) 14%Severe weather 11%

All flights LAX → IAH · Connecting off UA 277? Check the risk

Questions

How often is UA 277 from IAH to FLL late?

United Airlines 277 from Houston, TX to Fort Lauderdale, FL arrived 15 or more minutes late, was diverted or was cancelled on 18% of 279 scheduled flights between September 2025 and August 2026. 0.7% were cancelled.

How often is UA 277 from LAX to IAH late?

United Airlines 277 from Los Angeles, CA to Houston, TX arrived 15 or more minutes late, was diverted or was cancelled on 13% of 180 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.