Showing United only (incl. its regional partners)All airlines ×

9,073 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am from Ontario: 93% depart on time. After 4 pm it’s 7 in 10.

Best time to leave 6–7 am 93% arrive on time from LAX, 92% arrive on time from ONT

Best airport pair SNA → SFO 69% on time, 1.1% cancelled, 2,172 flights

Best single flight UA 2363 ONT 06:00 → SFO 07:25 · 91% on time Avoid UA 5339 SNA 19:27 → SFO 21:05 · 50% 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).

LAX

BUR

SNA

ONT

% 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.


UA 2363	ONT 06:00	SFO 07:25	91%
UA 233	LAX 17:10	SFO 18:38	83%
UA 488	BUR 07:02	SFO 08:30	80%
UA 469	LAX 13:25	SFO 14:53	77%
UA 2019	LAX 16:14	SFO 17:42	68%
· · ·
UA 1791	LAX 10:55	SFO 12:30	58%
UA 2854	BUR 20:22	SFO 21:50	53%
UA 5339flown by SkyWest	SNA 19:27	SFO 21:05	50%

All 29 United 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.


UA 2647	LAX 06:00	SFO 07:35	1h 35m	105	94%	1.0%	71 min
UA 2363	ONT 06:00	SFO 07:25	1h 25m	201	91%	1.0%	100 min
UA 1604	SNA 07:00	SFO 08:31	1h 31m	72	69%	0.0%	55 min
UA 488	BUR 07:02	SFO 08:30	1h 28m	316	80%	0.3%	62 min
UA 1372	LAX 07:30	SFO 09:06	1h 36m	122	49%	0.0%	63 min
UA 433	LAX 09:10	SFO 10:45	1h 35m	70	30%	0.0%	59 min
UA 520	LAX 09:10	SFO 10:45	1h 35m	89	65%	0.0%	51 min
UA 5562flown by SkyWest	SNA 09:45	SFO 11:21	1h 36m	72	33%	0.0%	72 min
UA 2386	BUR 10:53	SFO 12:21	1h 28m	140	52%	0.7%	73 min
UA 1791	LAX 10:55	SFO 12:30	1h 35m	336	58%	0.0%	47 min
UA 469	LAX 13:25	SFO 14:53	1h 28m	197	77%	0.5%	78 min
UA 372	LAX 13:25	SFO 14:53	1h 28m	37	65%	0.0%	60 min
UA 5424flown by SkyWest	LAX 13:35	SFO 15:12	1h 37m	11	55%	0.0%	63 min
UA 1453	BUR 13:45	SFO 15:13	1h 28m	275	66%	1.8%	68 min
UA 1375	ONT 13:50	SFO 15:15	1h 25m	129	57%	0.0%	60 min
UA 1383	SNA 14:47	SFO 16:18	1h 31m	88	38%	1.1%	50 min
UA 2823	SNA 14:47	SFO 16:18	1h 31m	37	35%	0.0%	54 min
UA 5351flown by SkyWest	SNA 16:12	SFO 17:50	1h 38m	144	67%	2.1%	38 min
UA 357	BUR 16:13	SFO 17:41	1h 28m	71	46%	0.0%	50 min
UA 2019	LAX 16:14	SFO 17:42	1h 28m	364	68%	0.0%	55 min
UA 233	LAX 17:10	SFO 18:38	1h 28m	197	83%	0.0%	65 min
UA 2657	SNA 18:20	SFO 19:51	1h 31m	125	41%	3.2%	59 min
UA 5624flown by SkyWest	ONT 18:39	SFO 20:07	1h 28m	62	16%	1.6%	54 min
UA 1508	BUR 18:42	SFO 20:10	1h 28m	143	41%	0.0%	81 min
UA 2681	LAX 18:45	SFO 20:10	1h 25m	149	38%	0.0%	59 min
UA 5339flown by SkyWest	SNA 19:27	SFO 21:05	1h 38m	170	50%	2.9%	86 min
UA 1195	LAX 20:10	SFO 21:38	1h 28m	124	28%	0.8%	61 min
UA 2854	BUR 20:22	SFO 21:50	1h 28m	225	53%	0.4%	71 min
UA 2056	LAX 21:34	SFO 23:02	1h 28m	268	61%	0.4%	62 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.


United	SNA	SFO	1h 35m	69%	1.1%	2,172	Flying now
United	ONT	SFO	1h 27m	67%	0.5%	1,113	Flying now
United	LAX	SFO	1h 32m	67%	0.2%	3,621	Flying now
United	BUR	SFO	1h 36m	65%	1.0%	2,166	Flying now
United	LAX	SJC	–	100%few flights	0.0%	1	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