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Cheap Flights from Chicago to Ontario (CHI - ONT)

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1 adult
Note: some airlines charge for infants in laps.
The price shown for each flight will be the average for all passengers including any infants.
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Best fares from CHI to ONT (Found by others)

Sun Mon Tue Wed Thu Fri Sat
      1 $344 2 $342 3 $344 4 $344
5 $344 6 $326 7 $344 8 $318 9 $370 10 $329 11 $393
12 $320 13 $419 14 $311 15 $329 16 $318 17 $320 18 $329
19 $329 20 $422 21 $329 22 $329 23 $329 24 $329 25 $324
26 $329 27
$329
28 $320 29 $311 30 $318 31 $320  
KAYAK searches hundreds of sites to find the best rate for your next flight from Chicago to Ontario. Get the best flight deal for your Ontario trip!
Here's how it works. Search KAYAK for a flight ticket from Chicago to Ontario. Sort, filter and compare results on one web page. Then book your plane ticket direct on the airline or travel agent site of your choice!
Select an airline:  AirTran
Direct flights CHI to ONT on AirTran
Flight # Depart MDW Arrive ONT Sun Mon Tue Wed Thu Fri Sat Valid Between
2200 8:55 am 11:15 am Oct 1 - Oct 31
2200 8:55 am 11:00 am Sep 18 - Sep 29
6322 8:55 am 11:15 am Oct 5 - Oct 26
4425 9:10 am 11:25 am Oct 4 - Nov 1