ON TIMEBOARD

UA 3591 on time

United Airlines 3591: Burlington to Newark at 10:35 a.m. (past 12 months)

On time
83%
303 flights · likely 78–86%
Cancelled
2.6%
of scheduled flights
Typical arrival
−17 min
median vs schedule
When late
+56 min
average delay
Similar flights
84%
UA, same route & hour

About 1 in 6 UA 3591 flights from Burlington arrived 15+ minutes late, diverted or cancelled over the past year (17%); 2.6% were cancelled. The typical flight landed 17 minutes early.

UA 3591: BTV → EWR

Scheduled to leave Burlington at 10:35 a.m. local time, operated by Republic Airways as YX 3591. Over the past year it arrived on time 83% of the time (303 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%Sep 2025: 76% on time (29 flights)76SepOct 2025: 81% on time (31 flights)81OctNov 2025: 78% on time (23 flights)78NovDec 2025: 74% on time (31 flights)74DecJan 2026: 84% on time (31 flights)84JanFeb 2026: 95% on time (20 flights)95FebMar 2026: 95% on time (19 flights)95MarApr 2026: 100% on time (30 flights)100AprMay 2026: 89% on time (28 flights)89MayJun 2026: 69% on time (26 flights)69JunJul 2026: 74% on time (27 flights)74JulAug 2026: too few flights (8 flights)Aug

By day of week

DayFlightsOn time
Monday4676%
Tuesday4283%
Wednesday4589%
Thursday4888%
Friday4678%
Saturday3187%
Sunday4578%

Why it was late

Air traffic & airport (NAS) 60%Late inbound plane 23%Airline (crew, maintenance, ops) 17%Severe weather 1%

All flights BTV → EWR · Connecting off UA 3591? Check the risk

Questions

How often is UA 3591 from BTV to EWR late?

United Airlines 3591 from Burlington, VT to Newark, NJ arrived 15 or more minutes late, was diverted or was cancelled on 17% of 303 scheduled flights between September 2025 and August 2026. 2.6% 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.