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Cheap Flights from Ontario to Chicago - ONT to CHI (reverse)

Popular Flights from Ontario to Chicago

  • Airfare from Ontario to Chicago on American from $378 round trip
  • Airfare from Ontario to Chicago on Delta from $378 round trip
  • Airfare from Ontario to Chicago on United from $378 round trip
  • Airfare from Ontario to Chicago on US Airways from $378 round trip
  • Airfare from Ontario to Chicago on Alaska from $632 round trip

Did You Know?

  • 8 airlines operate between Ontario, CA and Chicago, IL
  • Southwest has the most nonstop flights between Ontario, CA and Chicago, IL.
  • Southwest has 1 nonstop flight between Ontario, CA and Chicago, IL.
  • The smallest aircraft operated by KLM flying between Ontario, CA and Chicago, IL is a 737 with 144 seats.
  • 118,819 seats are available per day to fly out of Ontario, CA connecting to Chicago, IL
  • Denver, CO is the most popular connection for one stop flights between Ontario, CA and Chicago, IL.
  • 89 flights per week fly out of Ontario, CA connecting to Chicago, IL
  • The shortest flight between Ontario, CA and Chicago, IL on United is 1,702 miles.

Expert Travel Advice Provided by Farecompare

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Advance Purchase Prices from Ontario to Chicago

  • Carrier
    0 Days
    1 Day
    3 Days
    7 Days
    10 Days
    14 Days
    21 Days
  • Alaska
    $1013
    $1013
    $1013
    $809
    $809
    $663
    $663
  • American
    $811
    $811
    $301
    $241
    $241
    $311
    $351
  • Continental
    $819
    $819
    $819
    $289
    $289
    $359
    $359
  • Delta
    $811
    $811
    $811
    $281
    $281
    $429
    $429
  • US Airways
    $439
    $439
    $439
    $249
    $249
    $319
    $319
  • United
    $819
    $819
    $819
    $289
    $289
    $359
    $359

Daily Non-stop Flight Schedules from Ontario International to Chicago Midway

  • Airline
    Mon
    Tue
    Wed
    Thu
    Fri
    Sat
    Sun
    Earliest Flight
    Latest Flight
  • Southwest
    1
    1
    1
    1
    1
    1
    1
    9:50 AM
    1:35 PM

Cheap Domestic Flights from Ontario - ONT

Flights
Airline
Lowest Price
Ontario to Phoenix
US Airways, United
$140
Ontario to Las Vegas
US Airways
$278
Ontario to Denver
Delta, United, Alaska, US Airways
$296
Ontario to Oakland
US Airways
$306
Ontario to Dallas-Fort Worth
US Airways, United, Delta, American
$314
Ontario to Seattle
US Airways, American, Delta, United, Alaska
$148
Ontario to Sacramento
United, US Airways
$278
Ontario to San Jose
Delta, US Airways
$306
Ontario to Los Angeles
Alaska
$654
Ontario to Houston
AirTran, American, US Airways, Delta, United
$279
Ontario to San Francisco
US Airways, United
$212
Ontario to Salt Lake City
Delta, United, US Airways
$238
Ontario to Atlanta
US Airways, American, AirTran, Delta, United
$336
Ontario to Portland
Delta, US Airways, American, United, Alaska
$196
Ontario to San Diego
 
 
Ontario to New York
Alaska, US Airways, United, Delta, AirTran, American
$300
Ontario to Minneapolis-St Paul
Alaska, American, US Airways, Delta, United
$598
Ontario to Santa Ana
 
 
Ontario to Burbank
 
 
Ontario to Washington
United, Alaska, Delta, US Airways, American, AirTran
$378
Ontario to Honolulu
United, Delta, Alaska, US Airways
$707
Ontario to Charlotte
US Airways, Alaska, United, Delta, American
$590
Ontario to Detroit
Delta, Alaska, US Airways, American, United
$484
Ontario to Newark
American, US Airways, Delta, United, Alaska
$300
Ontario to Philadelphia
Alaska, United, Delta, US Airways, American
$378
Ontario to Boston
American, AirTran, US Airways, Delta, United, Alaska
$360
Ontario to Long Beach
 
 
Ontario to Albuquerque
US Airways, Delta, United
$248
Ontario to Austin
US Airways, Alaska, United, Delta, American
$253
Ontario to Orlando
AirTran, American, Alaska, United, Delta, US Airways
$299
Ontario to Baltimore
United, AirTran, American, US Airways, Delta
$362
Ontario to Reno
US Airways, Delta, United
$224
Ontario to Kansas City
United, Delta, US Airways, American, Alaska
$378
Ontario to St Louis
US Airways, American, Delta, United, Alaska
$256
Ontario to Kahului
United, Delta, Alaska, US Airways
$735
Ontario to San Antonio
United, Delta, American, US Airways
$359
Ontario to Spokane
United, US Airways, Delta, Alaska
$448
Ontario to Miami
United, Delta, US Airways, American
$493
Ontario to Boise
US Airways, United, Delta, Alaska
$444
Ontario to Anchorage
United, Delta, Alaska, US Airways
$355
Ontario to Fort Lauderdale
AirTran, American, US Airways, Delta, United, Alaska
$371
Ontario to Nashville
American, US Airways, Delta, United
$539
Ontario to Tampa
United, American, AirTran, US Airways, Delta
$579
Ontario to Milwaukee
Delta, United, US Airways, American
$210
Ontario to El Paso
US Airways, United
$260
Ontario to Tucson
US Airways, United
$190
Ontario to New Orleans
Alaska, United, American, US Airways, Delta
$493
Ontario to Indianapolis
United, Delta, US Airways, American
$298
Ontario to Cleveland
Delta, Alaska, United, American, US Airways
$324
Ontario to Omaha
United, Alaska, Delta, US Airways, American
$537
Ontario to Oklahoma City
American, United, Delta, US Airways
$496
Ontario to Pittsburgh
American, US Airways, Delta, United
$306
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updated: 2013-05-25T20:58-04:00
Cheap Flights from Ontario to Chicago, from $378 Round trip from ONT to CHI