SEARCH ONE AND DONE. - Compare hundreds of travel sites at once.
Choose where to book.
Find deals from over 400 airlines worldwide.

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.

Best fares from CHI to ONT (Found by others)

Sun Mon Tue Wed Thu Fri Sat
          1 $441 2 $470
3 $465 4 $399 5 $410 6 $344 7 $389 8 $389 9 $379
10 $453 11 $410 12 $391 13 $344 14 $364 15 $354 16 $344
17 $395 18 $339 19 $329 20 $329 21 $329 22 $324 23 $324
24 $356 25 $329 26 $327 27 $327 28 $327 29 $349 30 $327
31 $329            
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 29
3705 8:55 am 11:00 am Sep 1 - Sep 1
2200 9:10 am 11:15 am Aug 10 - Aug 29
4425 9:10 am 11:15 am Aug 16 - Aug 23
4425 9:10 am 11:15 am Aug 30 - Aug 30
5748 9:20 am 11:25 am Jul 27 - Aug 8
4748 8:30 pm 10:35 pm Aug 9 - Aug 9