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Cheap Flights from Chicago to Ontario (CHI - ONT)

DepartReturn
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 $685 2 $533 3 $454 4 $454 5 $544 6 $454
7 $537 8 $359 9 $344 10 $390 11 $458 12 $481 13 $415
14 $438 15 $415 16 $415 17 $392 18 $392 19 $392 20 $392
21 $392 22 $359 23 $369 24 $369 25 $359 26 $359 27 $364
28
$364
29 $398 30
$398
       
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 3 - Sep 8
2200 8:55 am 11:00 am Sep 10 - 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 13 - Sep 27
4425 9:10 am 11:25 am Oct 4 - Nov 1