ON TIMEBOARD
United Airlines / EWR → IAD

UA 1366 on time

United Airlines 1366: Newark to Washington at 6:00 a.m.; Washington to Nashville at 8:30 a.m. (past 12 months). Figures below the title are for EWR → IAD, its busiest leg

On time
93%
350 flights · likely 89–95%
Cancelled
3.1%
of scheduled flights
Typical arrival
−10 min
median vs schedule
When late
+94 min
average delay
Similar flights
93%
UA, same route & hour

About 1 in 13 UA 1366 flights from Newark arrived 15+ minutes late, diverted or cancelled over the past year (7%); 3.1% were cancelled. The typical flight landed 10 minutes early.

UA 1366: EWR → IAD

Scheduled to leave Newark at 6:00 a.m. local time. Over the past year it arrived on time 93% of the time (350 flights), in line with other UA flights on the route at that hour (93%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 93% on time (30 flights)93SepOct 2025: 94% on time (31 flights)94OctNov 2025: 93% on time (29 flights)93NovDec 2025: 94% on time (31 flights)94DecJan 2026: 87% on time (31 flights)87JanFeb 2026: 85% on time (27 flights)85FebMar 2026: 93% on time (28 flights)93MarApr 2026: 100% on time (30 flights)100AprMay 2026: 100% on time (31 flights)100MayJun 2026: 96% on time (23 flights)96JunJul 2026: 90% on time (31 flights)90JulAug 2026: 86% on time (28 flights)86Aug

By day of week

DayFlightsOn time
Monday5392%
Tuesday4894%
Wednesday5196%
Thursday5288%
Friday5194%
Saturday4391%
Sunday5292%

Why it was late

Air traffic & airport (NAS) 37%Airline (crew, maintenance, ops) 31%Severe weather 25%Late inbound plane 7%

All flights EWR → IAD · Connecting off UA 1366? Check the risk

UA 1366: IAD → BNA

Scheduled to leave Washington at 8:30 a.m. local time. Over the past year it arrived on time 89% of the time (162 flights), in line with other UA flights on the route at that hour (90%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Feb 2026: too few flights (13 flights)FebMar 2026: 93% on time (29 flights)93MarApr 2026: 93% on time (30 flights)93AprMay 2026: 92% on time (24 flights)92MayJun 2026: 81% on time (21 flights)81JunJul 2026: 87% on time (23 flights)87JulAug 2026: 91% on time (22 flights)91Aug

By day of week

DayFlightsOn time
Monday2986%
Tuesday8—
Wednesday2286%
Thursday2993%
Friday2990%
Saturday17—
Sunday2886%

Why it was late

Late inbound plane 47%Airline (crew, maintenance, ops) 38%Air traffic & airport (NAS) 15%

All flights IAD → BNA · Connecting off UA 1366? Check the risk

Questions

How often is UA 1366 from EWR to IAD late?

United Airlines 1366 from Newark, NJ to Washington, DC arrived 15 or more minutes late, was diverted or was cancelled on 7% of 350 scheduled flights between September 2025 and August 2026. 3.1% were cancelled.

How often is UA 1366 from IAD to BNA late?

United Airlines 1366 from Washington, DC to Nashville, TN arrived 15 or more minutes late, was diverted or was cancelled on 11% of 162 scheduled flights between September 2025 and August 2026. 0.6% 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.