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Showing Frontier only (incl. its regional partners)All airlines ×
855 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Fly Orange County to SFO: 62% arrive on time, against 2 in 5 from Ontario to SFO.

Best time to leave 1–2 pm 68% arrive on time from SNA
Best airport pair SNA → SFO 62% on time, fewest cancelled (1.3%), 151 flights
Best single flight F9 4593 LAX 18:57 → SFO 20:30 · 49% on time Avoid F9 2677 ONT 20:36 → SFO 22:13 · 42% 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).

8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
LAX
70
59
46
50
SNA
66
ONT
27
17
61
% 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.

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.
F9 4593 LAX 18:57 SFO 20:30 49%
F9 2677 ONT 20:36 SFO 22:13 42%

All 5 Frontier flights in the current schedule

Every flight that flew in the Jun 6 – Jul 31, 2026 schedule, with its record over Aug 2025 – Jul 2026. Times are local. Click a column to sort.
F9 1159 ONT 08:58 SFO 10:30 1h 32m 27 23% 3.7% 57 min
F9 3581 SNA 13:16 SFO 14:58 1h 42m 144 61% 1.4% 95 min
F9 2457 LAX 18:11 SJC 19:28 1h 17m 117 81% 3.4% 53 min
F9 4593 LAX 18:57 SFO 20:30 1h 38m 175 49% 1.7% 63 min
F9 2677 ONT 20:36 SFO 22:13 1h 37m 169 42% 2.4% 71 min

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.
Frontier LAX SJC 1h 17m 81% 3.4% 117 Flying now
Frontier SNA SFO 1h 42m 62% 1.3% 151 Flying now
Frontier LAX SFO 1h 37m 50% 2.3% 391 Flying now
Frontier ONT SFO 1h 37m 39% 2.6% 196 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