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Amazing American Airlines STL to ONT Flight Deals

The cheapest flights to Los Angeles - Ontario Intl. found within the past 7 days were $247 round trip and $133 one way. Prices and availability subject to change. Additional terms may apply.

ONT From STL Economy Coach Packages on Similar Airlines


FAQs about American Airlines Flights from STL to ONT

What terminal is American Airlines at St. Louis Lambert International Airport?

Check your boarding pass to find out which St. Louis, MO Airport (STL-Lambert-St. Louis Intl.) terminal you'll be departing from on your way to Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.) with American Airlines. If you can't find the information on there, ask your airline.

Are there American Airlines non-stop flights from STL to ONT?

American Airlines doesn't provide direct flights between St. Louis, MO Airport (STL-Lambert-St. Louis Intl.) and Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.), so plan on making at least one stopover. If you've got time between flights, sit down and enjoy a coffee while you wait for your connection.

How long is an American Airlines flight from STL to ONT?

Enjoy some in-flight shut-eye and begin your getaway feeling refreshed and relaxed. You'll have time to do so when traveling with American Airlines between St. Louis, MO Airport (STL-Lambert-St. Louis Intl.) and Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.), with the flight taking around 5 hours and 8 minutes.

How many direct and indirect flights does American Airlines fly from STL to ONT?

You'll have a lot of flexibility if you want to fly with American Airlines between STL and ONT. Currently, it offers approximately 5 flights each day.

Flying Tips & Tricks How do I find my flight number?
  • You'll find a code written in your travel itinerary, which will be sent to you when you've finalized your booking. Just keep an eye out for the IATA airline code (which contains a couple of letters and a single digit) followed by a few other numbers — your flight number.
How early can you check bags for a flight?
  • Scheduled check-in times are different across airlines. However, with international flights you can typically drop your baggage three hours before departure. We recommend arriving at the airport with plenty of time to spare as check-in closes around an hour before takeoff. If you're traveling on a domestic flight, check-in and luggage drop open two hours before departure and close 45 minutes before takeoff.

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.