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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 $321 2 $326 3 $348 4 $324
5 $335 6 $324 7 $311 8 $306 9 $326 10 $320 11 $328
12 $320 13 $363 14 $311 15 $306 16 $318 17 $320 18 $306
19 $320 20 $410 21 $311 22 $311 23 $318 24 $320 25 $320
26 $327 27 $327 28 $311 29 $319 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 11:00 am Sep 17 - Sep 29
2200 8:55 am 11:15 am Oct 1 - Oct 31
6322 8:55 am 11:15 am Oct 5 - Oct 26
4425 9:10 am 11:15 am Sep 20 - Sep 27
4425 9:10 am 11:25 am Oct 4 - Nov 1