ON TIMEBOARD

AA 4534 on time

American Airlines 4534: New York to Greer at 9:43 a.m.; Greer to New York at 12:55 p.m. (past 12 months). Figures below the title are for LGA → GSP, its busiest leg

On time
70%
202 flights · likely 63–76%
Cancelled
6.9%
of scheduled flights
Typical arrival
−7 min
median vs schedule
When late
+60 min
average delay
Similar flights
75%
AA, same route & hour

About 1 in 3 AA 4534 flights from New York arrived 15+ minutes late, diverted or cancelled over the past year (30%); 6.9% were cancelled. The typical flight landed 7 minutes early.

AA 4534: LGA → GSP

Scheduled to leave New York at 9:43 a.m. local time, operated by Republic Airways as YX 4534. Over the past year it arrived on time 70% of the time (202 flights), worse than other AA flights on the route at that hour (75%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Jun 2025: 48% on time (29 flights)48JunJul 2025: 52% on time (31 flights)52JulAug 2025: 78% on time (27 flights)78AugSep 2025: 87% on time (30 flights)87SepOct 2025: 71% on time (31 flights)71OctNov 2025: 78% on time (27 flights)78NovDec 2025: 52% on time (21 flights)52DecJan 2026: 77% on time (22 flights)77JanFeb 2026: 73% on time (22 flights)73FebMar 2026: 59% on time (22 flights)59MarApr 2026: too few flights (4 flights)AprAug 2026: 52% on time (23 flights)52Aug

By day of week

DayFlightsOn time
Monday3471%
Tuesday3361%
Wednesday3376%
Thursday3367%
Friday3269%
Saturday12—
Sunday2568%

Why it was late

Late inbound plane 47%Air traffic & airport (NAS) 33%Airline (crew, maintenance, ops) 11%Severe weather 9%

All flights LGA → GSP · Connecting off AA 4534? Check the risk

AA 4534: GSP → LGA

Scheduled to leave Greer at 12:55 p.m. local time, operated by Republic Airways as YX 4534. Over the past year it arrived on time 63% of the time (198 flights), worse than other AA flights on the route at that hour (67%). Last seen in the data Aug 31, 2026.

Month by month

20%60%100%Jun 2025: 42% on time (26 flights)42JunJul 2025: 27% on time (26 flights)27JulAug 2025: 65% on time (26 flights)65AugSep 2025: 77% on time (26 flights)77SepOct 2025: 56% on time (27 flights)56OctNov 2025: 54% on time (26 flights)54NovDec 2025: 48% on time (21 flights)48DecJan 2026: 73% on time (22 flights)73JanFeb 2026: 83% on time (24 flights)83FebMar 2026: 56% on time (27 flights)56MarApr 2026: too few flights (5 flights)AprAug 2026: 55% on time (20 flights)55Aug

By day of week

DayFlightsOn time
Monday3459%
Tuesday3057%
Wednesday3364%
Thursday3253%
Friday3373%
Saturday3—
Sunday3367%

Why it was late

Late inbound plane 44%Air traffic & airport (NAS) 23%Severe weather 18%Airline (crew, maintenance, ops) 15%

All flights GSP → LGA · Connecting off AA 4534? Check the risk

Questions

How often is AA 4534 from LGA to GSP late?

American Airlines 4534 from New York, NY to Greer, SC arrived 15 or more minutes late, was diverted or was cancelled on 30% of 202 scheduled flights between September 2025 and August 2026. 6.9% were cancelled.

How often is AA 4534 from GSP to LGA late?

American Airlines 4534 from Greer, SC to New York, NY arrived 15 or more minutes late, was diverted or was cancelled on 37% of 198 scheduled flights between September 2025 and August 2026. 8.1% 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 American Airlines for today's flight. Method.