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1,394 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 95% depart on time. After 4 pm it’s 3 in 4.

Best time to leave 7–8 am 96% arrive on time from SJU
Best single flight UA 2089 SJU 07:40 → ORD 11:53 · 96% on time Avoid UA 2088 SJU 15:56 → ORD 20:15 · 71% 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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SJU
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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
Chicago flights leaving SJU 7–8 am: 1Close ×
UA 2089 SJU 07:40 ORD 11:53 5h 13m 296 96% 1.0% 35 min

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 82% 0.6% 40 min
Spirit 261 78% 6.9% 81 min
American 426 77% 2.1% 112 min
Frontier 42 – 4.8% 99 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 2089 SJU 07:40 ORD 11:53 96%
UA 2088 SJU 15:56 ORD 20:15 71%
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 SJU ORD 5h 19m 82% 0.6% 665 Flying now
American SJU ORD 5h 32m 77% 2.1% 426 Flying now
Frontier SJU ORD 5h 13m 61% 4.8% 42 Flying now
Spirit SJU ORD 5h 16m 78% 6.9% 261 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