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Cheap Flights from Ontario to Chicago (ONT - MDW)

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 ONT to MDW (Found by others)

Sun Mon Tue Wed Thu Fri Sat
      1
$2
2 $681 3 $636 4 $1131
5 $823 6
$823
7
$823
8
$823
9 $577 10 $577 11 $822
12
$822
13
$822
14
$822
15 $757 16 $912 17 $556 18
$556
19
$556
20
$556
21
$556
22 $453 23 $527 24 $639 25
$639
26 $726 27 $687 28
$687
29 $436 30
$436
31 $585  
KAYAK searches hundreds of sites to find the best rate for your next flight from Ontario to Chicago. Get the best flight deal for your Chicago trip!
Here's how it works. Search KAYAK for a flight ticket from Ontario to Chicago. 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:  Southwest
Direct flights ONT to MDW on Southwest
Flight # Depart ONT Arrive MDW Sun Mon Tue Wed Thu Fri Sat Valid Between
3940 6:00 am 11:55 am Sep 22 - Oct 31
817 6:40 am 12:35 pm Oct 5 - Oct 26
4297 1:35 pm 7:25 pm Sep 20 - Oct 25