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7,427 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 93% depart on time. After 4 pm it’s 72%.

Best time to leave 6–7 am 93% arrive on time from SJC, 92% arrive on time from SFO
Best airport pair SJC → ORD 93% on time, 1.7% cancelled, 301 flights
Best single flight UA 2091 SFO 06:05 → ORD 12:41 · 93% on time Avoid UA 1954 SFO 10:05 → ORD 16:38 · 72% 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).

5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
SFO
94
94
94
90
75
59
71
68
66
69
70
67
69
75
70
OAK
91
84
68
SJC
95
90
70
52
87
% 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.
Southwest 1,509 82% 0.5% 38 min
United 4,123 79% 1.0% 74 min
American 1,776 73% 1.7% 107 min
Alaska SFO→ORD only 19 – 5.3% 50 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 2091 SFO 06:05 ORD 12:41 93%
AA 2614 SFO 06:00 ORD 12:31 92%
UA 1568 SFO 08:15 ORD 14:50 85%
UA 2278 SFO 22:38 ORD 05:01 81%
UA 1482 SFO 16:21 ORD 22:59 81%
· · ·
UA 1954 SFO 10:05 ORD 16:38 72%
All 32 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 SJC ORD 4h 24m 92% 1.7% 293 Flying now
Southwest OAK MDW 4h 05m 85% 0.2% 505 Flying now
Southwest SJC MDW 4h 05m 85% 0.2% 519 Flying now
United SFO ORD 4h 26m 78% 0.9% 3,830 Flying now
Southwest SFO MDW 4h 05m 74% 1.2% 485 Flying now
American SFO ORD 4h 27m 73% 1.8% 1,768 Flying now
American SJC ORD – 100%few flights 0.0% 8 Not flying now
Alaska SFO ORD 4h 23m 53%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