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1,398 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 84% depart on time. After 4 pm it’s 57%.

Best time to leave 2–3 pm 82% arrive on time from ORD
Best single flight UA 1996 ORD 08:49 → SJU 14:44 · 81% on time Avoid UA 695 ORD 14:38 → SJU 20:34 · 80% 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).

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% 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.

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.

United 665 80% 0.3% 50 min
American 429 73% 1.6% 63 min
Spirit 263 63% 7.6% 76 min
Frontier 41 – 7.3% 235 min

Dimmed: fewer than 150 flights in the year, too few to rank.

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 1996 ORD 08:49 SJU 14:44 81%
UA 695 ORD 14:38 SJU 20:34 80%
All 4 flights on this route →

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 ORD SJU 4h 56m 80% 0.3% 665 Flying now
American ORD SJU 4h 42m 73% 1.6% 429 Flying now
Frontier ORD SJU 5h 00m 63% 7.3% 41 Flying now
Spirit ORD SJU 4h 41m 63% 7.6% 263 Not 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