Photo by Ontario Convention & Visitors Bureau / Jon Edwards.
$264 Cheap United flights St. Louis (STL) to Ontario (ONT)
Prices were available within the past 7 days and start at $264 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Find the cheapest month to fly from St. Louis (STL) to Ontario (ONT)
February is typically the cheapest month to fly
From $119 - $450 per traveler.
Travel information
Origin airport | Lambert-St. Louis Intl. |
|---|---|
Destination airport | Los Angeles - Ontario Intl. |
Distance | 2467 km |
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Most Popular United Routes from St. Louis
Most Popular United Routes from Ontario
- Chicago to Orlando (ORD - MCO)
- Kansas City to Phoenix (MCI - PHX)
- Washington to San Luis Obispo (DCA - SBP)
- Butte to Miami (BTM - MIA)
- Newark Liberty Intl. Airport to New Orleans (EWR - MSY)
- Los Angeles to Orlando (LAX - MCO)
- Sacramento to Tokyo (SMF - HND)
- Minneapolis to Pensacola (MSP - PNS)
- Washington to San Salvador (IAD - SAL)
- Ontario to Little Rock (ONT - LIT)
Popular Domestic Routes in Los Angeles - Ontario Intl.
- Sacramento to Tokyo (SMF - HND)
- Minneapolis to Pensacola (MSP - PNS)
- Newark Liberty Intl. Airport to Fort Lauderdale (EWR - FLL)
- Chicago to Orlando (ORD - MCO)
- Washington to San Luis Obispo (DCA - SBP)
- Atlanta to Denver (ATL - DEN)
- Chicago to Orlando (ORD - MCO)
- Appleton to Portland (ATW - PDX)
- Boston to San Francisco (BOS - SFO)
- Minneapolis to Pensacola (MSP - PNS)