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5,617 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 73%.

Best time to leave 5–6 am 95% arrive on time from SFO
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
95
95
93
90
76
59
71
68
66
69
70
67
69
75
75
% 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 SFO 11 pm–12 am: 2Close ×
AA 2554 SFO 23:08 ORD 05:29 4h 15m 72 73% 1.4% 81 min
UA 368 SFO 23:30 ORD 05:57 4h 27m 72 86% 1.4% 42 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 3,830 78% 0.9% 75 min
American 1,768 73% 1.8% 107 min
Alaska 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 22 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 SFO ORD 4h 26m 78% 0.9% 3,830 Flying now
American SFO ORD 4h 27m 73% 1.8% 1,768 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