Chicago (ORD) to San Diego (SAN) flights

American Airlines, United Airlines, Alaska Airlines fly nonstop from Chicago O'Hare International Airport to San Diego International Airport, with about 89 flights a week in July 2026. The 1,723-mile flight takes about 4h 25m gate to gate.

From
ORD
Chicago
Chicago O'Hare International Airport
To
SAN
San Diego
San Diego International Airport
Distance
1,723 mi · 2,773 km
Flight time
4h 25m
Airlines
3
Seats filled
81%
Flights a week, July 2026
3,815 flights and 560,113 passengers in 12 months
SANSANORD
Map data: Natural Earth. Lines follow the shortest (great-circle) path.

Airlines flying ORD to SAN

AirlineFlights a weekAircraftPassengers (12 months)Flight time
American Airlines35Boeing 737-800, Airbus A321, Boeing 737 MAX 8203,0534h 22m
United Airlines34Airbus A321, Boeing 737-900ER, Boeing 737 MAX 9259,9194h 25m
Alaska Airlines20Boeing 737-800, Boeing 737-900ER, Boeing 737 MAX 992,6984h 30m
Frontier AirlinesSeasonal or endedn/aAirbus A320neo, Airbus A321, Airbus A320-100/2004,4434h 25m

Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.

ORD to SAN flight schedule

20 flight numbers flew this route in August 2026, 13 of them almost daily. The first usually leaves at 6:20am and the last at 9:30pm. Times are local and can change; check with the airline before you book.

FlightDepartsArrivesDays flown in August 2026On time (12 months)
AS 1470Alaska Airlines6:20am8:54am3176%
AA 2343American Airlines6:45am8:58am2781%
AA 2484American Airlines6:49am9:04am488%
UA 2428United Airlines7:05am9:32am3194%
UA 660United Airlines8:46am11:15am3182%
AA 2131American Airlines10:02am12:21pm2768%
AA 2482American Airlines10:05am12:27pm468%
UA 1811United Airlines12:40pm3:02pm2148%
UA 2683United Airlines1:00pm3:25pm1079%
AS 1447Alaska Airlines2:20pm4:59pm2868%
UA 2138United Airlines4:00pm6:30pm2152%
AA 1160American Airlines4:05pm6:25pm453%
UA 745United Airlines4:05pm6:32pm1067%
AA 1543American Airlines5:00pm7:19pm2765%
AA 1924American Airlines7:00pm9:22pm3158%
UA 1168United Airlines7:45pm10:10pm2114%
AS 1466Alaska Airlines7:59pm10:33pm2352%
UA 1531United Airlines8:05pm10:34pm1076%
AA 2457American Airlines9:10pm11:26pm444%
AA 2945American Airlines9:30pm11:47pm2737%

Is ORD to SAN on time?

From September 2025 to August 2026, 71% of 3,945 flights arrived within 15 minutes of schedule and 1.3% were cancelled. Flights leaving around 7am were the most punctual (90%), those around 7pm the least (56%). Most delay time was caused by late-arriving aircraft (41%).

AirlineFlightsOn timeAverage delayCancelled
United Airlines1,67776%16 min0.4%
American Airlines1,40064%24 min1.6%
Alaska Airlines86269%24 min2.6%

Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.

On-time arrivals by departure time

Scheduled departureFlightsOn time, relativeOn time
6am to 7am186
88%
7am to 8am415
90%
8am to 9am432
81%
9am to 10am308
70%
10am to 11am230
68%
11am to 12pm200
68%
1pm to 2pm290
79%
2pm to 3pm123
62%
3pm to 4pm170
71%
4pm to 5pm392
64%
5pm to 6pm159
67%
6pm to 7pm138
63%
7pm to 8pm442
56%
8pm to 9pm247
63%
9pm to 10pm148
42%

Flights by month

MonthFlightsFlights, relativePassengers
August 2025318
48,778
September 2025268
40,542
October 2025351
50,389
November 2025306
42,566
December 2025302
44,062
January 2026243
34,623
February 2026241
36,865
March 2026322
50,048
April 2026331
46,948
May 2026364
50,438
June 2026377
55,138
July 2026392
59,716

Related

Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.