ON TIMEBOARD
United Airlines / IAH → IAD

UA 2366 on time

United Airlines 2366: Houston to Washington at 12:10 p.m.; Salt Lake City to Houston at 7:00 a.m. (past 12 months). Figures below the title are for IAH → IAD, its busiest leg

On time
81%
365 flights · likely 77–85%
Cancelled
0.3%
of scheduled flights
Typical arrival
−1 min
median vs schedule
When late
+54 min
average delay
Similar flights
81%
UA, same route & hour

About 1 in 5 UA 2366 flights from Houston arrived 15+ minutes late, diverted or cancelled over the past year (19%); 0.3% were cancelled. The typical flight landed 1 minutes early.

UA 2366: IAH → IAD

Scheduled to leave Houston at 12:10 p.m. local time. Over the past year it arrived on time 81% of the time (365 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%Sep 2025: 90% on time (30 flights)90SepOct 2025: 87% on time (31 flights)87OctNov 2025: 83% on time (30 flights)83NovDec 2025: 87% on time (31 flights)87DecJan 2026: 84% on time (31 flights)84JanFeb 2026: 71% on time (28 flights)71FebMar 2026: 77% on time (31 flights)77MarApr 2026: 90% on time (30 flights)90AprMay 2026: 90% on time (31 flights)90MayJun 2026: 60% on time (30 flights)60JunJul 2026: 65% on time (31 flights)65JulAug 2026: 90% on time (31 flights)90Aug

By day of week

DayFlightsOn time
Monday5383%
Tuesday5288%
Wednesday5281%
Thursday5279%
Friday5279%
Saturday5283%
Sunday5277%

Why it was late

Air traffic & airport (NAS) 41%Airline (crew, maintenance, ops) 30%Late inbound plane 21%Severe weather 9%

All flights IAH → IAD · Connecting off UA 2366? Check the risk

UA 2366: SLC → IAH

Scheduled to leave Salt Lake City at 7:00 a.m. local time. Over the past year it arrived on time 93% of the time (311 flights), in line with other UA flights on the route at that hour (94%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Aug 2025: too few flights (13 flights)AugSep 2025: 93% on time (30 flights)93SepOct 2025: 96% on time (25 flights)96OctDec 2025: too few flights (14 flights)DecJan 2026: 94% on time (31 flights)94JanFeb 2026: 100% on time (28 flights)100FebMar 2026: 84% on time (31 flights)84MarApr 2026: 93% on time (30 flights)93AprMay 2026: 90% on time (31 flights)90MayJun 2026: 87% on time (30 flights)87JunJul 2026: 90% on time (31 flights)90JulAug 2026: 100% on time (30 flights)100Aug

By day of week

DayFlightsOn time
Monday4589%
Tuesday4393%
Wednesday4495%
Thursday4593%
Friday4598%
Saturday4589%
Sunday4493%

Why it was late

Airline (crew, maintenance, ops) 63%Air traffic & airport (NAS) 35%Severe weather 1%

All flights SLC → IAH · Connecting off UA 2366? Check the risk

Questions

How often is UA 2366 from IAH to IAD late?

United Airlines 2366 from Houston, TX to Washington, DC arrived 15 or more minutes late, was diverted or was cancelled on 19% of 365 scheduled flights between September 2025 and August 2026. 0.3% were cancelled.

How often is UA 2366 from SLC to IAH late?

United Airlines 2366 from Salt Lake City, UT to Houston, TX arrived 15 or more minutes late, was diverted or was cancelled on 7% of 311 scheduled flights between September 2025 and August 2026. 1.6% 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.