7,426 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 barely half.

Best time to leave 6–7 am 90% arrive on time from ORD

Best airport pair MDW → SJC 70% on time, 1.5% cancelled, 519 flights

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).

ORD

MDW

% 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.


United	4,121	71%	1.1%	76 min
American	1,777	63%	1.7%	74 min
Southwest	1,509	62%	1.4%	54 min
Alaska ORD→SFO only	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 27 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 246	ORD 06:10	SFO 08:47	4h 37m	149	93%	0.7%	52 min
AA 2543	ORD 06:29	SFO 09:19	4h 40m	72	84%	2.8%	45 min
UA 1116	ORD 07:30	SFO 10:19	4h 49m	125	87%	1.6%	72 min
AA 1586	ORD 08:43	SFO 11:25	4h 42m	86	58%	0.0%	46 min
UA 2610	ORD 08:50	SFO 11:38	4h 48m	81	54%	6.2%	76 min
WN 3366	MDW 10:05	OAK 12:35	4h 30m	50	74%	0.0%	79 min
WN 1546	MDW 10:05	SFO 12:35	4h 30m	50	12%	0.0%	55 min
WN 3752	MDW 10:05	SJC 12:30	4h 25m	49	82%	0.0%	37 min
UA 543	ORD 10:25	SFO 13:14	4h 49m	149	63%	2.0%	89 min
AA 2550	ORD 11:04	SFO 13:45	4h 41m	72	41%	1.4%	136 min
UA 1902	ORD 12:45	SFO 15:28	4h 43m	35	29%	0.0%	59 min
UA 1577	ORD 14:30	SFO 17:19	4h 49m	359	74%	1.1%	110 min
AA 1253	ORD 15:18	SFO 17:58	4h 40m	311	70%	1.3%	80 min
UA 1334	ORD 15:26	SFO 18:18	4h 52m	114	66%	0.0%	100 min
UA 2251	ORD 15:57	SFO 18:49	4h 52m	100	69%	0.0%	71 min
UA 511	ORD 16:30	SFO 19:24	4h 54m	123	61%	0.0%	80 min
AA 1620	ORD 17:59	SFO 20:46	4h 47m	77	34%	3.9%	76 min
UA 2179	ORD 18:20	SFO 21:18	4h 58m	339	48%	1.2%	66 min
UA 481	ORD 19:58	SJC 22:43	4h 45m	72	67%	4.2%	97 min
UA 1495	ORD 20:04	SFO 22:57	4h 53m	143	45%	1.4%	78 min
WN 2659	MDW 20:50	SJC 23:30	4h 35m	41	38%	2.4%	57 min
WN 1662	MDW 20:55	SJC 23:28	4h 32m	16	73%	6.2%	34 min
WN 2710	MDW 21:00	OAK 23:32	4h 32m	16	50%	0.0%	79 min
AA 3054	ORD 21:00	SFO 23:58	4h 42m	72	32%	4.2%	68 min
WN 2893	MDW 21:30	SFO 00:12	4h 42m	50	51%	2.0%	64 min
UA 2106	ORD 21:35	SFO 00:32	4h 57m	198	78%	2.5%	67 min
WN 4042	MDW 21:40	OAK 00:15	4h 30m	34	48%	2.9%	63 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	ORD	SFO	4h 52m	71%	1.1%	3,828	Flying now
Southwest	MDW	SJC	4h 35m	70%	1.5%	519	Flying now
United	ORD	SJC	4h 55m	69%	1.7%	293	Flying now
Southwest	MDW	OAK	4h 35m	65%	1.4%	505	Flying now
American	ORD	SFO	4h 47m	63%	1.8%	1,769	Flying now
Southwest	MDW	SFO	4h 40m	49%	1.2%	485	Flying now
American	ORD	SJC	–	88%few flights	0.0%	8	Not 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