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5,616 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 85% depart on time. After 4 pm it’s 57%.

Best time to leave 6–7 am 90% arrive on time from ORD
Best single flight UA 2106 ORD 21:35 → SFO 00:32 · 78% on time Avoid UA 2179 ORD 18:20 → SFO 21:18 · 48% 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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ORD
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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
San Francisco flights leaving ORD 5–6 pm: 1Close ×
AA 1620 ORD 17:59 SFO 20:46 4h 47m 77 34% 3.9% 76 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 3,828 71% 1.1% 76 min
American 1,769 63% 1.8% 74 min
Alaska 19 – 5.3% 58 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 2106 ORD 21:35 SFO 00:32 78%
UA 1577 ORD 14:30 SFO 17:19 74%
AA 1253 ORD 15:18 SFO 17:58 70%
UA 2179 ORD 18:20 SFO 21:18 48%
All 18 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 SFO 4h 52m 71% 1.1% 3,828 Flying now
American ORD SFO 4h 47m 63% 1.8% 1,769 Flying now
Alaska ORD SFO 4h 48m 56%few flights 5.3% 19 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