Flight Reliability
UA 2036 · United Airlines
San Juan → Newark (SJU–EWR)
79
Usually Fine
WanderNerd Reliability Score
- 81%
- Arrive within 15 minutes
- 8 min
- Average arrival delay
- 2.2%
- Cancelled
- 8 min early
- Median arrival delay
Based on 364 historical flights. Data through May 2026.
What the data says
Mondays have been rough.
UA 2036 arrived on time 90% of the time on Tuesdays and just 74% on Mondays. That gap is worth planning around.
A bit ahead of the SJU–EWR route.
UA 2036 arrived on time 81% of the time, versus 75% across the SJU–EWR route.
The breakdown
- Mon74%(50 flights)
- Tue90%(52 flights)
- Wed86%(50 flights)
- Thu82%(50 flights)
- Fri86%(51 flights)
- Sat75%(51 flights)
- Sun75%(51 flights)
- 12–3 PM80%(15 flights)
- 3–6 PM82%(17 flights)
- 6–9 PM81%(323 flights)
87%
May
Jun 83% → May 87% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 83% | 29 |
| July 2025 | 65% | 31 |
| August 2025 | 70% | 30 |
| September 2025 | 83% | 30 |
| October 2025 | 94% | 31 |
| November 2025 | 93% | 29 |
| December 2025 | 80% | 30 |
| January 2026 | 79% | 29 |
| February 2026 | 80% | 25 |
| March 2026 | 65% | 31 |
| April 2026 | 97% | 29 |
| May 2026 | 87% | 31 |
- Departures on time
- 79%
- Diverted
- 0.3%
- Flights flown
- 355
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 364 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.