Find The Best Day To Fly from St. Louis to Ontario
Amazing American Airlines STL to ONT Flight Deals
The cheapest flights to Los Angeles - Ontario Intl. found within the past 7 days were $212 round trip and $153 one way. Prices and availability subject to change. Additional terms may apply.
ONT From STL Economy Coach Packages on Similar Airlines
Frequently asked questions
Discover our best American Airlines flight from St. Louis STL to Ontario ONT
To find the best deals on flights to St. Louis from Ontario with American Airlines, just enter your travel dates, filter by American Airlines, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.
Return flights from St. Louis STL to Ontario ONT with American Airlines
If you’re planning a round trip, booking return flights with American Airlines is usually the most cost-effective option. With airfares ranging from $212 to $306, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply.
Book one-way American Airlines flights from St. Louis STL to Ontario ONT
A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way American Airlines flight from St. Louis to Ontario costs from $153. Prices and availability subject to change. Additional terms may apply.
The easy way to find cheap flights to Ontario ONT from St. Louis STL with American Airlines
To find a cheap American Airlines flight from St. Louis STL to Ontario ONT, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference.
How to find our best airfare deals on American Airlines flights from St. Louis STL to Ontario ONT
If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as February, or if you book a flight with a stopover.
Find nonstop flights from St. Louis STL to Ontario ONT with American Airlines
If you’re keen to be on Ontario soil fast, don’t waste time with a stopover—filter your search results to show direct American Airlines flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it.
Flexible airline tickets for American Airlines flights from St. Louis STL to Ontario ONT
Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.
There are a lot of reasons to book your flights to Ontario ONT from St. Louis STL with American Airlines on Travelocity
At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.
Airport code | Country | Airport name | Number of flights |
---|---|---|---|
DFW | USA | Dallas-Fort Worth Intl. | 599 |
CLT | USA | Charlotte-Douglas Intl. | 536 |
ORD | USA | O'Hare Intl. | 317 |
PHL | USA | Philadelphia Intl. | 247 |
MIA | USA | Miami Intl. | 193 |
DCA | USA | Ronald Reagan Washington National | 152 |
PHX | USA | Sky Harbor Intl. | 141 |
LAX | USA | Los Angeles Intl. | 81 |
LGA | USA | LaGuardia | 72 |
BOS | USA | Logan Intl. | 57 |
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Popular American Airlines Flight Routes from STL
- American Airlines STL to MSY
- American Airlines STL to MIA
- American Airlines STL to HNL
- American Airlines STL to BUF
- American Airlines STL to SJU
- American Airlines STL to PHL
- American Airlines STL to LAS
- American Airlines STL to CUN
- American Airlines STL to DEN
- American Airlines STL to LGA
- American Airlines STL to MCO
Top American Airlines Flight Routes from ONT
Top Flights for American Airlines originating from STL
Domestic
- Houston to San Salvador (IAH - SAL)
- Newark Liberty Intl. Airport to Orlando (EWR - MCO)
- Newark Liberty Intl. Airport to Orlando (EWR - MCO)
- Los Angeles to San Salvador (LAX - SAL)
- Newark Liberty Intl. Airport to Miami (EWR - MIA)
- Chicago to Orlando (ORD - MCO)
- Philadelphia to Orlando (PHL - MCO)
- Minneapolis to Orlando (MSP - MCO)
- Philadelphia to Orlando (PHL - MCO)
- Chicago to San Juan (ORD - SJU)
International
- Newark Liberty Intl. Airport to San Juan (EWR - SJU)
- Newark Liberty Intl. Airport to Santiago (EWR - STI)
- Philadelphia to Orlando (PHL - MCO)
- New York to Santiago (JFK - STI)
- Newark Liberty Intl. Airport to Orlando (EWR - MCO)
- Chicago to San Juan (ORD - SJU)
- Newark Liberty Intl. Airport to Santiago (EWR - STI)
- Los Angeles to San Salvador (LAX - SAL)
- Houston to San Salvador (IAH - SAL)
- Detroit to Orlando (DTW - MCO)