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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 Aug 13, 2017 Aug 19, 2017 $257
American May 20, 2017 May 23, 2017 $260
American Sep 23, 2017 Sep 25, 2017 $263
American Aug 16, 2017 Aug 19, 2017 $266
American May 17, 2017 May 21, 2017 $266
American Aug 17, 2017 Aug 20, 2017 $266
American Aug 19, 2017 Aug 21, 2017 $266
American Aug 18, 2017 Aug 22, 2017 $266
American Aug 19, 2017 Aug 22, 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 5/20/17 5/23/17 $260
Peoria 5/25/17 5/30/17 $628

Flight Schedule Summaries Last modified: Apr 25, 2017 0:40 -04:00Number of routes searched: 628Number of itineraries searched: 140,146

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

Cheap Domestic Flights from Ontario - ONT Last modified: Apr 25, 2017 0:40 -04:00Prices shown were found by travelers like you over the past 30 days

Cheap Flights from Ontario, California to Illinois - from $257 Round trip from ONT to IL