Chicago (ORD) to Ontario (ONT) flight deal in economy from $72
ORDO'Hare International Airport
Chicago, United States
ONTOntario International Airport
Ontario, United States
$149 USD
-52%$72 USD
Verified about 3 hours agoSeptember 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Extremely Rare Availability
4% of dates checked are available within 10% of the lowest price
Saturday, September 5th, 2026
Outbound Flights
4h 29m·Nonstop
$72 USD
ORDSep 5 20:06
→ONTSep 5 22:35
UA 2800Boeing 737
7h 26m·1 stop
$105 USDORDSep 5 14:35
→SFOSep 5 17:23
UA 1577Boeing 757
1h 7m layover
SFOSep 5 18:30
→ONTSep 5 20:01
UA 2478Boeing 737
6h 27m·1 stop
$105 USDORDSep 5 16:26
→DENSep 5 18:25
UA 2415Boeing 737
1h 5m layover
DENSep 5 19:30
→ONTSep 5 20:53
UA 2028Boeing 737
8h 12m·1 stop
$105 USDORDSep 5 06:00
→SFOSep 5 08:38
UA 246Boeing 757
1h 59m layover
SFOSep 5 10:37
→ONTSep 5 12:12
UA 2661Boeing 737MAX 9 Passenger
7h 50m·1 stop
$105 USDORDSep 5 07:00
→DENSep 5 08:52
UA 1217Airbus A321neo
2h 38m layover
DENSep 5 11:30
→ONTSep 5 12:50
UA 430Boeing 737MAX 9 Passenger
9h 1m·1 stop
$105 USDORDSep 5 08:40
→SFOSep 5 11:20
UA 342Boeing 777
2h 50m layover
SFOSep 5 14:10
→ONTSep 5 15:41
UA 411Boeing 737
7h 25m·1 stop
$139 USDORDSep 5 12:47
→IAHSep 5 15:40
UA 1448Airbus A321neo
1h 7m layover
IAHSep 5 16:47
→ONTSep 5 18:12
UA 758Boeing 737
6h 21m·1 stop
$143 USDORDSep 5 08:29
→DENSep 5 10:21
UA 2139Airbus A321neo
1h 9m layover
DENSep 5 11:30
→ONTSep 5 12:50
UA 430Boeing 737MAX 9 Passenger