About 1 in 4 UA 3633 flights from Cleveland arrived 15+ minutes late, diverted or cancelled over the past year (28%); 8.1% were cancelled. The typical flight landed 14 minutes early.
UA 3633: CLE → EWR
Scheduled to leave Cleveland at 5:42 p.m. local time, operated by Republic Airways as YX 3633. Over the past year it arrived on time 72% of the time (261 flights), in line with other UA flights on the route at that hour (71%). Last seen in the data Aug 10, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 41 | 73% |
| Tuesday | 41 | 71% |
| Wednesday | 41 | 78% |
| Thursday | 42 | 81% |
| Friday | 42 | 71% |
| Saturday | 13 | — |
| Sunday | 41 | 56% |
Why it was late
All flights CLE → EWR · Connecting off UA 3633? Check the risk
Questions
How often is UA 3633 from CLE to EWR late?
United Airlines 3633 from Cleveland, OH to Newark, NJ arrived 15 or more minutes late, was diverted or was cancelled on 28% of 261 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 United Airlines for today's flight. Method.