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Ontario International Airport to St. Louis Lambert International Airport flight

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

      • LAX 1:00 PM
        17h 25m
        1 stop
        STL Invalid Date
        Los Angeles - St. Louis | Fri, Apr 24 | Normal Airline
        STL 3:00 PM
        6h
        Nonstop
        LAX 4:00 PM
        St. Louis - Los Angeles | Sun, Apr 26 | Normal Airline
        Search
        Search
      • LAX 1:00 PM
        17h 25m
        1 stop
        STL Invalid Date
        Los Angeles - St. Louis | Fri, Apr 24 | Normal Airline
        STL 3:00 PM
        6h
        Nonstop
        LAX 4:00 PM
        St. Louis - Los Angeles | Sun, Apr 26 | Normal Airline
        Search
        Search
      • LAX 1:00 PM
        17h 25m
        1 stop
        STL Invalid Date
        Los Angeles - St. Louis | Fri, Apr 24 | Normal Airline
        STL 3:00 PM
        6h
        Nonstop
        LAX 4:00 PM
        St. Louis - Los Angeles | Sun, Apr 26 | Normal Airline
        Search
        Search
      • LAX 1:00 PM
        17h 25m
        1 stop
        STL Invalid Date
        Los Angeles - St. Louis | Fri, Apr 24 | Normal Airline
        STL 3:00 PM
        6h
        Nonstop
        LAX 4:00 PM
        St. Louis - Los Angeles | Sun, Apr 26 | Normal Airline
        Search
        Search
      • LAX 1:00 PM
        17h 25m
        1 stop
        STL Invalid Date
        Los Angeles - St. Louis | Fri, Apr 24 | Normal Airline
        STL 3:00 PM
        6h
        Nonstop
        LAX 4:00 PM
        St. Louis - Los Angeles | Sun, Apr 26 | Normal Airline
        Search
        Search
      • LAX 1:00 PM
        17h 25m
        1 stop
        STL Invalid Date
        Los Angeles - St. Louis | Fri, Apr 24 | Normal Airline
        STL 3:00 PM
        6h
        Nonstop
        LAX 4:00 PM
        St. Louis - Los Angeles | Sun, Apr 26 | Normal Airline
        Search
        Search
      • LAX 1:00 PM
        17h 25m
        1 stop
        STL Invalid Date
        Los Angeles - St. Louis | Fri, Apr 24 | Normal Airline
        STL 3:00 PM
        6h
        Nonstop
        LAX 4:00 PM
        St. Louis - Los Angeles | Sun, Apr 26 | Normal Airline
        Search
        Search
      • LAX 1:00 PM
        17h 25m
        1 stop
        STL Invalid Date
        Los Angeles - St. Louis | Fri, Apr 24 | Normal Airline
        STL 3:00 PM
        6h
        Nonstop
        LAX 4:00 PM
        St. Louis - Los Angeles | Sun, Apr 26 | Normal Airline
        Search
        Search
      • LAX 1:00 PM
        17h 25m
        1 stop
        STL Invalid Date
        Los Angeles - St. Louis | Fri, Apr 24 | Normal Airline
        STL 3:00 PM
        6h
        Nonstop
        LAX 4:00 PM
        St. Louis - Los Angeles | Sun, Apr 26 | Normal Airline
        Search
        Search
      • LAX 1:00 PM
        17h 25m
        1 stop
        STL Invalid Date
        Los Angeles - St. Louis | Fri, Apr 24 | Normal Airline
        STL 3:00 PM
        6h
        Nonstop
        LAX 4:00 PM
        St. Louis - Los Angeles | Sun, Apr 26 | Normal Airline
        Search
        Search
      • LAX 1:00 PM
        17h 25m
        1 stop
        STL Invalid Date
        Los Angeles - St. Louis | Fri, Apr 24 | Normal Airline
        Search
        Search
      • LAX 1:00 PM
        17h 25m
        1 stop
        STL Invalid Date
        Los Angeles - St. Louis | Fri, Apr 24 | Normal Airline
        Search
        Search
      • LAX 1:00 PM
        17h 25m
        1 stop
        STL Invalid Date
        Los Angeles - St. Louis | Fri, Apr 24 | Normal Airline
        Search
        Search
      • LAX 1:00 PM
        17h 25m
        1 stop
        STL Invalid Date
        Los Angeles - St. Louis | Fri, Apr 24 | Normal Airline
        Search
        Search
      • LAX 1:00 PM
        17h 25m
        1 stop
        STL Invalid Date
        Los Angeles - St. Louis | Fri, Apr 24 | Normal Airline
        Search
        Search
      • LAX 1:00 PM
        17h 25m
        1 stop
        STL Invalid Date
        Los Angeles - St. Louis | Fri, Apr 24 | Normal Airline
        Search
        Search
      • LAX 1:00 PM
        17h 25m
        1 stop
        STL Invalid Date
        Los Angeles - St. Louis | Fri, Apr 24 | Normal Airline
        Search
        Search
      • LAX 1:00 PM
        17h 25m
        1 stop
        STL Invalid Date
        Los Angeles - St. Louis | Fri, Apr 24 | Normal Airline
        Search
        Search
      • LAX 1:00 PM
        17h 25m
        1 stop
        STL Invalid Date
        Los Angeles - St. Louis | Fri, Apr 24 | Normal Airline
        Search
        Search
      • LAX 1:00 PM
        17h 25m
        1 stop
        STL Invalid Date
        Los Angeles - St. Louis | Fri, Apr 24 | Normal Airline
        Search
        Search

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

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

Flight distance2,485.2 km

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

  • How long is a flight from Ontario International Airport to St. Louis Lambert International Airport?

    It takes around 5 hours 20 minutes to fly from Ontario International Airport (ont) to St. Louis Lambert International Airport (stl).
  • There are around 1 daily flights from Ontario International Airport (ONT) to St. Louis Lambert International Airport (STL).
  • Tickets cost around TWD 10,395 in May, making it the cheapest month to book. Ontario International Airport (ONT) to St. Louis Lambert International Airport (STL) is a popular route, so don't forget to book your tickets in advance.
  • The route from Ontario International Airport (ONT) to St. Louis Lambert International Airport (STL) is quite popular. Without considering departure times or holidays, tickets cost around TWD 10,395 in May, the most expensive month to book this route.
    • The distance from St. Louis Lambert International Airport to downtown is about 20 km. It takes about 40 minutes by taxi.

Popular Destinations

Note: Prices shown on this page are the lowest estimated prices found in the last 24 hours and include all taxes and fees.

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Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before payment. Charges for checked baggage, onboard meals, Wi-Fi, and other optional services may also appear in the flight cards where applicable.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours, and for many routes the data may refresh in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

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Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.