Showing United only (incl. its regional partners)All airlines ×

1,113 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 3 in 4 depart on time. After 4 pm it’s 65%.

Best time to leave 9–10 am 77% arrive on time from EWR

Best single flight UA 1556 EWR 09:46 → SJU 13:45 · 77% on time Avoid UA 1543 EWR 19:45 → SJU 23:50 · 67% on time

Time of day × airport

Share of this route’s flights leaving within 15 minutes, by airport and scheduled departure hour, over Aug 2025 – Jul 2026. Blank: no flights then (or fewer than 40 in the year).

EWR

% of this route’s flights leaving within 15 min (small number: flights in the Jun 6 – Jul 31, 2026 schedule): 85+75–8465–7455–64under 55

Pick an hour to see this route’s flights leaving then.

Flights, best and worst

Flights in the Jun 6 – Jul 31, 2026 schedule that ran 150+ times in the year. Times are local. Pick a flight for its history.


UA 1556	EWR 09:46	SJU 13:45	77%
UA 2143	EWR 08:00	SJU 12:04	69%
UA 1543	EWR 19:45	SJU 23:50	67%

All 3 United flights in the current schedule

Every flight that flew in the Jun 6 – Jul 31, 2026 schedule, with its record over Aug 2025 – Jul 2026. Times are local. Click a column to sort.


UA 2143	EWR 08:00	SJU 12:04	4h 04m	365	69%	3.6%	111 min
UA 1556	EWR 09:46	SJU 13:45	3h 59m	365	77%	1.4%	50 min
UA 1543	EWR 19:45	SJU 23:50	4h 05m	364	67%	1.4%	74 min

Nonstops by airline and airport

Arriving within 15 minutes, Aug 2025 – Jul 2026. Pick a row to see that airline’s flights on that airport pair.


United	EWR	SJU	4h 04m	71%	2.2%	1,113	Flying now

Flying on a particular day? Pick a date above and the same ranking uses our forecast odds for each flight that day: Tomorrow.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON