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St. Louis Lambert International Airport to Ontario International Airport flight

Search for flights from St. Louis to Los Angeles and check out affordable one-way and round-trip options.

      • STL 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        St. Louis - Los Angeles | Sat, Feb 7 | Normal Airline
        LAX 15:00
        6h
        Direct
        STL 16:00
        Los Angeles - St. Louis | Mon, Feb 9 | Normal Airline
        Search
        Search
      • STL 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        St. Louis - Los Angeles | Sat, Feb 7 | Normal Airline
        LAX 15:00
        6h
        Direct
        STL 16:00
        Los Angeles - St. Louis | Mon, Feb 9 | Normal Airline
        Search
        Search
      • STL 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        St. Louis - Los Angeles | Sat, Feb 7 | Normal Airline
        LAX 15:00
        6h
        Direct
        STL 16:00
        Los Angeles - St. Louis | Mon, Feb 9 | Normal Airline
        Search
        Search
      • STL 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        St. Louis - Los Angeles | Sat, Feb 7 | Normal Airline
        LAX 15:00
        6h
        Direct
        STL 16:00
        Los Angeles - St. Louis | Mon, Feb 9 | Normal Airline
        Search
        Search
      • STL 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        St. Louis - Los Angeles | Sat, Feb 7 | Normal Airline
        LAX 15:00
        6h
        Direct
        STL 16:00
        Los Angeles - St. Louis | Mon, Feb 9 | Normal Airline
        Search
        Search
      • STL 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        St. Louis - Los Angeles | Sat, Feb 7 | Normal Airline
        LAX 15:00
        6h
        Direct
        STL 16:00
        Los Angeles - St. Louis | Mon, Feb 9 | Normal Airline
        Search
        Search
      • STL 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        St. Louis - Los Angeles | Sat, Feb 7 | Normal Airline
        LAX 15:00
        6h
        Direct
        STL 16:00
        Los Angeles - St. Louis | Mon, Feb 9 | Normal Airline
        Search
        Search
      • STL 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        St. Louis - Los Angeles | Sat, Feb 7 | Normal Airline
        LAX 15:00
        6h
        Direct
        STL 16:00
        Los Angeles - St. Louis | Mon, Feb 9 | Normal Airline
        Search
        Search
      • STL 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        St. Louis - Los Angeles | Sat, Feb 7 | Normal Airline
        LAX 15:00
        6h
        Direct
        STL 16:00
        Los Angeles - St. Louis | Mon, Feb 9 | Normal Airline
        Search
        Search
      • STL 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        St. Louis - Los Angeles | Sat, Feb 7 | Normal Airline
        LAX 15:00
        6h
        Direct
        STL 16:00
        Los Angeles - St. Louis | Mon, Feb 9 | Normal Airline
        Search
        Search
      • STL 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        St. Louis - Los Angeles | Sat, Feb 7 | Normal Airline
        Search
        Search
      • STL 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        St. Louis - Los Angeles | Sat, Feb 7 | Normal Airline
        Search
        Search
      • STL 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        St. Louis - Los Angeles | Sat, Feb 7 | Normal Airline
        Search
        Search
      • STL 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        St. Louis - Los Angeles | Sat, Feb 7 | Normal Airline
        Search
        Search
      • STL 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        St. Louis - Los Angeles | Sat, Feb 7 | Normal Airline
        Search
        Search
      • STL 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        St. Louis - Los Angeles | Sat, Feb 7 | Normal Airline
        Search
        Search
      • STL 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        St. Louis - Los Angeles | Sat, Feb 7 | Normal Airline
        Search
        Search
      • STL 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        St. Louis - Los Angeles | Sat, Feb 7 | Normal Airline
        Search
        Search
      • STL 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        St. Louis - Los Angeles | Sat, Feb 7 | Normal Airline
        Search
        Search
      • STL 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        St. Louis - Los Angeles | Sat, Feb 7 | Normal Airline
        Search
        Search

Displayed flight fares from St. Louis to Los Angeles are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

St. Louis Lambert International Airport to Ontario International Airport Flights Info

Flight distance2,485.2km

FAQs for St. Louis Lambert International Airport to Ontario International Airport Flights

  • How long is the flights from St. Louis Lambert International Airport (STL) to Ontario International Airport (ONT)?

    It takes around 5 hours 10 minutes to fly from St. Louis Lambert International Airport (stl) to Ontario International Airport(ont).
  • There are around 2 daily flights from St. Louis Lambert International Airport (STL) to Ontario International Airport (ONT).
  • Tickets cost around CAD 729 in September, making it the cheapest month to book. St. Louis Lambert International Airport (STL) to Ontario International Airport (ONT) is a popular route, so don't forget to book your tickets in advance.
  • The route from St. Louis Lambert International Airport (STL) to Ontario International Airport (ONT) is quite popular. Without considering departure times or holidays, tickets cost around CAD 729 in September, the most expensive month to book this route.
    • The distance from Los Angeles International Airport to downtown is about 19km, by taxi about 30 minutes.
    • The distance from Ontario International Airport to downtown is about 59km, by taxi about 1 hour 10 minutes.

Most popular destination