Flight number record
YX 3633
Republic Airways · Cleveland to Newark
- Route
- CLE → EWR
- Departs
- 17:42
- Flights
- 261
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s YX 3633, check with Republic Airways. Republic Airways flies under contract for larger airlines, so a ticket for this flight may show a different airline code and number.
YX 3633 lands a B−, 2 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That rests on 261 flights, with a median arrival 14 minutes early.
Key figures
On time
79.1%
Arrivals under 15 minutes late, of 239 completed flights
Avg delay
68 min
Across delayed arrivals only, not all flights
Cancelled
8.05%
National rate is 1.89%
1 hour+ late
8.4%
National rate is 8.3%
These figures cover 261 flights between September 2025 and August 2026. Beyond the headline rate, 8.4% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When YX 3633 flies
YX 3633 flies CLE to EWR without a single fixed slot. Its most common scheduled departure was 17:42, used on 40 of 261 flights, with 17:16 (31 flights) and 17:19 (30 flights) next.
- Departs 17:4240 flights15.3%
- Departs 17:1631 flights11.9%
- Departs 17:1930 flights11.5%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 17:42 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and YX 3633 runs 11 points better at 79.1%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
YX 3633 next to CLE to EWR
Every carrier on CLE to EWR combined arrived on time 80.1% of the time across 2,162 flights, so YX 3633 is about level with it. Republic flew 718 flights on the same city pair under all its flight numbers, including this one, and those ran 80.7% on time. Across its whole network Republic Airways managed 78.1%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| YX 3633thin sample | 261 | 79.1% | 68 min | 8.05% | B− |
| All Republic Airways on CLE–EWR | 718 | 80.7% | 63 min | 6.55% | B− |
| All carriers on CLE–EWR | 2,162 | 80.1% | 93 min | 3.84% | B− |
| Republic Airways, whole network | 364,452 | 78.1% | 74 min | 4.55% | B− |
Across the year
YX 3633 quarter by quarter
YX 3633 did not run the same all year. Its best quarter was Apr–Jun 2026 at 91.4% on time and its weakest Oct–Dec 2025 at 63.6%, a swing of 28 points on roughly 87 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 20255 flights—
- Oct–Dec 202559 flights63.6%
- Jan–Mar 202678 flights88.9%
- Apr–Jun 202684 flights91.4%
- Jul–Sep 202635 flights—
Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, YX 3633 did best on Thursday at 87.2% on time and worst on Sunday at 65.7%. Each day rests on about 37 flights, so a gap of 22 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late YX 3633 runs when it is late
YX 3633 often beats the schedule: 119 of 239 completed flights, 50%, arrived 15 minutes or more early. The 50 late arrivals split 17 under half an hour, 13 between 30 and 60 minutes, and 20 an hour or more.
- 15+ min early119 flights49.8%
- Within 15 min70 flights29.3%
- 15–29 min late17 flights7.1%
- 30–59 min late13 flights5.4%
- 1–2 hours late12 flights5.0%
- 2+ hours late8 flights3.3%
Scale runs 0% to 100%.
Share of 239 completed flights by arrival against schedule.
7 of 40 late departures made up the time and arrived on time, 18% of them. In the other direction, 17 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at EWR.
The worst days
Worst days for YX 3633
The latest arrival of the period was on 15 July 2026, 4 hours 39 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. Three of the five worst days fell in July 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 15 July 2026 | 4 hours 39 minutes | National Airspace System |
| 27 July 2026 | 4 hours 37 minutes | National Airspace System |
| 3 July 2026 | 3 hours 21 minutes | National Airspace System |
| 5 August 2026 | 3 hours 1 minute | National Airspace System |
| 2 December 2025 | 2 hours 35 minutes | Carrier |
Delay causes
Why YX 3633 runs late
National Airspace System accounts for 79% of the 3,414 delay minutes carriers reported here, and the remaining four split what is left.
- 79%National Airspace System
- 11%Late-arriving aircraft
- 9%Carrier
79% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 2,713 minutes out of 3,414, against a national NAS share of 21%. The split is drawn from 3,414 delay minutes reported on YX 3633.
Cancellations run at 8.05%, against 1.89% nationally. That is about one flight in twelve cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and routes
What a delay on this flight costs
8.4% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
The same number turns up on nine other city pairs in the data, including IAD to CVG (26), IND to EWR (24) and CMH to EWR (21), but none flew often enough under YX 3633 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to CLE to EWR only.
One caution: this is a thin sample. 261 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking YX 3633
For a booking, the cancellation rate is the figure to plan around on YX 3633: 8.05% of its 261 scheduled flights did not operate. A late arrival costs a little over an hour, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- CLE to EWR, every carrier and departure
- EWR to CLE, the return direction
- United Airlines 601 on the same route92.8%
- Cleveland Hopkins International (CLE) delay statistics
- Newark Liberty International (EWR) delay statistics
- Republic Airways on-time record
- Every Republic Airways flight number with a record
- The most and least reliable flight numbers in the US
- What a cancellation rate actually tells you (and what it hides)
A flight number here means Republic Airways’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.