ON TIMEBOARD
United Airlines / EWR → SFO

UA 1343 on time

United Airlines 1343: Newark to San Francisco at 12:00 p.m.; Sarasota to Newark at 6:00 a.m. (past 12 months). Figures below the title are for EWR → SFO, its busiest leg

On time
63%
363 flights · likely 58–68%
Cancelled
1.7%
of scheduled flights
Typical arrival
+2 min
median vs schedule
When late
+90 min
average delay
Similar flights
61%
UA, same route & hour

About 1 in 3 UA 1343 flights from Newark arrived 15+ minutes late, diverted or cancelled over the past year (37%); 1.7% were cancelled. The typical flight landed 2 minutes late.

UA 1343: EWR → SFO

Scheduled to leave Newark at 12:00 p.m. local time. Over the past year it arrived on time 63% of the time (363 flights), in line with other UA flights on the route at that hour (61%). Last seen in the data Aug 31, 2026.

Month by month

30%65%100%Sep 2025: 77% on time (30 flights)77SepOct 2025: 65% on time (31 flights)65OctNov 2025: 67% on time (30 flights)67NovDec 2025: 55% on time (31 flights)55DecJan 2026: 71% on time (31 flights)71JanFeb 2026: 71% on time (28 flights)71FebMar 2026: 71% on time (31 flights)71MarApr 2026: 80% on time (30 flights)80AprMay 2026: 61% on time (31 flights)61MayJun 2026: 40% on time (30 flights)40JunJul 2026: 52% on time (31 flights)52JulAug 2026: 48% on time (29 flights)48Aug

By day of week

DayFlightsOn time
Monday5353%
Tuesday5275%
Wednesday5273%
Thursday5256%
Friday5271%
Saturday5058%
Sunday5256%

Why it was late

Airline (crew, maintenance, ops) 31%Air traffic & airport (NAS) 30%Late inbound plane 29%Severe weather 11%

All flights EWR → SFO · Connecting off UA 1343? Check the risk

UA 1343: SRQ → EWR

Scheduled to leave Sarasota at 6:00 a.m. local time. Over the past year it arrived on time 95% of the time (148 flights), in line with other UA flights on the route at that hour (92%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Mar 2026: too few flights (3 flights)MarApr 2026: 100% on time (30 flights)100AprMay 2026: 94% on time (31 flights)94MayJun 2026: 90% on time (30 flights)90JunJul 2026: 90% on time (30 flights)90JulAug 2026: 100% on time (24 flights)100Aug

By day of week

DayFlightsOn time
Monday2190%
Tuesday2291%
Wednesday22100%
Thursday2291%
Friday2195%
Saturday20100%
Sunday2095%

Why it was late

Airline (crew, maintenance, ops) 90%Air traffic & airport (NAS) 7%Late inbound plane 3%

All flights SRQ → EWR · Connecting off UA 1343? Check the risk

Questions

How often is UA 1343 from EWR to SFO late?

United Airlines 1343 from Newark, NJ to San Francisco, CA arrived 15 or more minutes late, was diverted or was cancelled on 37% of 363 scheduled flights between September 2025 and August 2026. 1.7% were cancelled.

How often is UA 1343 from SRQ to EWR late?

United Airlines 1343 from Sarasota/Bradenton, FL to Newark, NJ arrived 15 or more minutes late, was diverted or was cancelled on 5% of 148 scheduled flights between September 2025 and August 2026. 0.7% 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.