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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
United Nov 3, 2017 Nov 7, 2017 $277
United Oct 7, 2017 Oct 14, 2017 $277
United Oct 27, 2017 Nov 1, 2017 $277
United Aug 6, 2017 Aug 12, 2017 $326
Alaska Aug 13, 2017 Aug 18, 2017 $333
United Oct 6, 2017 Oct 11, 2017 $346
United Nov 8, 2017 Nov 13, 2017 $349
United Oct 5, 2017 Oct 13, 2017 $358
Alaska Aug 3, 2017 Aug 8, 2017 $397
Alaska Nov 21, 2017 Dec 5, 2017 $397

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 7/14/17 7/17/17 $453

Flight Schedule Summaries Last modified: Jun 24, 2017 4:24 -04:00Number of routes searched: 408Number of itineraries searched: 193,321

Ontario, California to Chicago
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American -
Alaska -
United -
Virgin America -
American ABQ
American DEN
American DFW
American OKC
Alaska SEA
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 BOS
United CLE
Virgin America SFO

Cheap Domestic Flights from Ontario - ONT Last modified: Jun 24, 2017 4:24 -04:00Prices shown were found by travelers like you over the past 30 days

Cheap Flights from Ontario, California to Illinois - from $277 Round trip from ONT to IL