From
To
City
Select sites to compare prices

Find Flights

Search

Enter your destination to continue
Enter your travel dates to continue
Select at least 3 sites to continue
Select your depart date
Select your return date

Cheap Flights From Ontario, California To Illinois

Cheap flights from Ontario, California (ONT) to popular destinations in Illinois (IL)

Chicago
Carrier Departure Date Return Date Lowest Price
American May 7, 2017 May 7, 2017 $177
American Aug 1, 2017 Aug 12, 2017 $257
American May 13, 2017 May 17, 2017 $260
United Apr 18, 2017 Apr 25, 2017 $260
American Aug 30, 2017 Sep 3, 2017 $260
American May 13, 2017 May 31, 2017 $260
American Apr 18, 2017 Apr 25, 2017 $263
American May 8, 2017 May 18, 2017 $266

Cheap Last Minute Flights from Ontario, California to Illinois Prices shown were found by travelers like you over the past 30 days

Looking for cheap last minute flights or a weekend getaway? We've got you covered with weekend flight deals from Ontario, California to Illinois. The chart below shows the best last minute deals and cheap flights this weekend we could find.

DestinationDepartingReturningPrice
Chicago 4/15/17 4/18/17 $270
Springfield, Illinois 4/21/17 4/25/17 $400
Moline 4/21/17 4/23/17 $563

Flight Schedule Summaries Last modified: Mar 26, 2017 0:37 -04:00Number of routes searched: 651Number of itineraries searched: 144,719

Ontario, California to Chicago
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American -
Alaska -
United -
Virgin America -
American PDX
American PHX
American ABQ
American ATL
Alaska SEA
Alaska SJC
Alaska PDX
Alaska SFO
JetBlue BOS
Major Airlines SLC
Major Airlines ATL
Major Airlines DTW
Major Airlines MSP
Major Airlines CVG
Frontier DEN
United DEN
United SFO
United BOS
United DFW
Virgin America SFO

Cheap Domestic Flights from Ontario - ONT Last modified: Mar 26, 2017 0:37 -04:00Prices shown were found by travelers like you over the past 30 days

Cheap Flights from Ontario, California to Illinois - from $177 Round trip from ONT to IL