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Cheap Flights from Ontario to St Louis - ONT to STL (reverse)

Popular Flights from Ontario to St Louis

  • Airfare from Ontario to St Louis on American from $368 round trip
  • Airfare from Ontario to St Louis on Delta from $368 round trip
  • Airfare from Ontario to St Louis on United from $368 round trip
  • Airfare from Ontario to St Louis on US Airways from $368 round trip
  • Airfare from Ontario to St Louis on Alaska from $590 round trip

Did You Know?

  • 108,393 seats are available per day to fly out of Ontario, CA connecting to St Louis, MO
  • Continental has 5 one stop flights between Ontario, CA and St Louis, MO.
  • The shortest flight between Ontario, CA and St Louis, MO on Continental is 1,960 miles.
  • The largest aircraft operated by Alaska flying between Ontario, CA and St Louis, MO is a 737 with 144 seats.
  • Dallas-Fort Worth, TX is the most popular connection for one stop flights between Ontario, CA and St Louis, MO.
  • 96 flights per week fly out of Ontario, CA connecting to St Louis, MO
  • 8 airlines operate between Ontario, CA and St Louis, MO
  • Southwest has the most one stop flights between Ontario, CA and St Louis, MO.

Expert Travel Advice Provided by Farecompare

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Advance Purchase Prices from Ontario to St Louis

  • Carrier
    0 Days
    1 Day
    3 Days
    7 Days
    10 Days
    14 Days
    21 Days
  • Alaska
    $1131
    $1131
    $1131
    $949
    $949
    $671
    $671
  • American
    $521
    $521
    $521
    $401
    $401
    $307
    $307
  • Continental
    $521
    $521
    $521
    $401
    $401
    $321
    $321
  • Delta
    $521
    $521
    $521
    $401
    $401
    $307
    $307
  • US Airways
    $521
    $521
    $521
    $421
    $421
    $341
    $341
  • United
    $521
    $521
    $521
    $401
    $401
    $321
    $321

Cheap Domestic Flights from Ontario - ONT

Flights
Airline
Lowest Price
Ontario to Phoenix
Alaska, United, US Airways
$116
Ontario to Las Vegas
Alaska, US Airways
$240
Ontario to Denver
Alaska, United, Delta, US Airways
$236
Ontario to Oakland
US Airways
$240
Ontario to Dallas-Fort Worth
US Airways, Alaska, United, Delta, American
$314
Ontario to Seattle
Alaska, United, US Airways, Delta, American
$159
Ontario to Sacramento
United, US Airways
$240
Ontario to Chicago
American, Alaska, United, Delta, US Airways
$358
Ontario to San Jose
Delta, US Airways
$240
Ontario to Los Angeles
Alaska
$654
Ontario to Houston
Alaska, United, Delta, US Airways, American, AirTran
$194
Ontario to San Francisco
United, US Airways
$212
Ontario to Salt Lake City
US Airways, Delta, United, Alaska
$232
Ontario to Atlanta
United, AirTran, American, US Airways, Delta, Alaska
$331
Ontario to Portland
Alaska, US Airways, American, United, Delta
$198
Ontario to San Diego
 
 
Ontario to New York
United, American, AirTran, US Airways
$378
Ontario to Minneapolis-St Paul
Alaska, United, Delta, US Airways, American
$378
Ontario to Santa Ana
 
 
Ontario to Burbank
 
 
Ontario to Washington
Delta, Alaska, AirTran, American, US Airways, United
$398
Ontario to Honolulu
United, Delta, Alaska, US Airways
$707
Ontario to Charlotte
Delta, Alaska, US Airways, United, American
$416
Ontario to Detroit
Alaska, United, Delta, US Airways, American
$388
Ontario to Newark
Delta, United, American, Alaska, US Airways
$378
Ontario to Philadelphia
United, Alaska, American, Delta, US Airways
$378
Ontario to Boston
Delta, United, American, US Airways, AirTran, Alaska
$358
Ontario to Long Beach
 
 
Ontario to Albuquerque
Delta, US Airways, United
$248
Ontario to Austin
American, Alaska, Delta, US Airways, United
$319
Ontario to Orlando
AirTran, Alaska, United, American, US Airways, Delta
$299
Ontario to Baltimore
US Airways, United, Delta, American, AirTran
$378
Ontario to Reno
United, US Airways, Alaska, Delta
$198
Ontario to Kansas City
Alaska, Delta, US Airways, American, United
$326
Ontario to Kahului
US Airways, Alaska, United, Delta
$735
Ontario to San Antonio
US Airways, Alaska, United, Delta, American
$415
Ontario to Spokane
US Airways, United, Delta, Alaska
$388
Ontario to Miami
American, US Airways, United, Delta
$415
Ontario to Boise
United, US Airways, Alaska, Delta
$418
Ontario to Anchorage
US Airways, Delta, Alaska, United
$335
Ontario to Fort Lauderdale
US Airways, American, AirTran, Delta, United, Alaska
$371
Ontario to Nashville
United, US Airways, American, Delta
$416
Ontario to Tampa
United, Delta, US Airways, AirTran, American
$415
Ontario to Milwaukee
US Airways, American, United, Delta
$254
Ontario to El Paso
United, US Airways
$248
Ontario to Tucson
Alaska, United, US Airways
$308
Ontario to New Orleans
United, Alaska, Delta, US Airways, American
$415
Ontario to Indianapolis
Delta, American, AirTran, United, US Airways
$406
Ontario to Cleveland
American, US Airways, United, Alaska, Delta
$418
Ontario to Omaha
American, US Airways, United, Alaska, Delta
$343
Ontario to Oklahoma City
United, Delta, US Airways, American
$418
Ontario to Pittsburgh
AirTran, American, US Airways, Delta, United
$418
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updated: 2013-06-19T08:21-04:00
Cheap Flights from Ontario to St Louis, from $368 Round trip from ONT to STL