ON TIMEBOARD
United Airlines / MCO → EWR

UA 1643 on time

United Airlines 1643: Orlando to Newark at 2:37 p.m.; Chicago to Orlando at 9:12 a.m. (past 12 months). Figures below the title are for MCO → EWR, its busiest leg

On time
67%
252 flights · likely 61–73%
Cancelled
4.4%
of scheduled flights
Typical arrival
−6 min
median vs schedule
When late
+113 min
average delay
Similar flights
69%
UA, same route & hour

About 1 in 3 UA 1643 flights from Orlando arrived 15+ minutes late, diverted or cancelled over the past year (33%); 4.4% were cancelled. The typical flight landed 6 minutes early.

UA 1643: MCO → EWR

Scheduled to leave Orlando at 2:37 p.m. local time. Over the past year it arrived on time 67% of the time (252 flights), in line with other UA flights on the route at that hour (69%). Last seen in the data Aug 31, 2026.

Month by month

20%60%100%May 2025: 26% on time (19 flights)26MayOct 2025: too few flights (6 flights)OctNov 2025: 59% on time (29 flights)59NovDec 2025: 77% on time (31 flights)77DecJan 2026: 71% on time (31 flights)71JanFeb 2026: 71% on time (28 flights)71FebMar 2026: too few flights (4 flights)MarApr 2026: too few flights (1 flights)AprMay 2026: 87% on time (30 flights)87MayJun 2026: 70% on time (30 flights)70JunJul 2026: 55% on time (31 flights)55JulAug 2026: 55% on time (31 flights)55Aug

By day of week

DayFlightsOn time
Monday3757%
Tuesday3678%
Wednesday3683%
Thursday3569%
Friday3661%
Saturday3667%
Sunday3658%

Why it was late

Air traffic & airport (NAS) 53%Late inbound plane 36%Airline (crew, maintenance, ops) 8%Severe weather 3%

All flights MCO → EWR · Connecting off UA 1643? Check the risk

UA 1643: ORD → MCO

Scheduled to leave Chicago at 9:12 a.m. local time. Over the past year it arrived on time 85% of the time (156 flights), in line with other UA flights on the route at that hour (82%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Mar 2026: too few flights (3 flights)MarApr 2026: 73% on time (30 flights)73AprMay 2026: 87% on time (31 flights)87MayJun 2026: 83% on time (30 flights)83JunJul 2026: 90% on time (31 flights)90JulAug 2026: 87% on time (31 flights)87Aug

By day of week

DayFlightsOn time
Monday2387%
Tuesday2295%
Wednesday2286%
Thursday2286%
Friday2264%
Saturday2277%
Sunday2396%

Why it was late

Air traffic & airport (NAS) 41%Airline (crew, maintenance, ops) 37%Late inbound plane 21%

All flights ORD → MCO · Connecting off UA 1643? Check the risk

Questions

How often is UA 1643 from MCO to EWR late?

United Airlines 1643 from Orlando, FL to Newark, NJ arrived 15 or more minutes late, was diverted or was cancelled on 33% of 252 scheduled flights between September 2025 and August 2026. 4.4% were cancelled.

How often is UA 1643 from ORD to MCO late?

United Airlines 1643 from Chicago, IL to Orlando, FL arrived 15 or more minutes late, was diverted or was cancelled on 15% of 156 scheduled flights between September 2025 and August 2026. 0.0% 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.