Cheap Flights from St. Louis Lambert International Airport to Ontario (ONT) Find and Compare the Best Airline Deals | Skyticket

Departure Date

2025/12
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2025/12
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Total Fares（Round-Trip/Economy）: USD /Per Person

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Lambert－Ontario Airport
December Lowest Airfares
USD578

The airfare displayed above is for Delta Air Lines

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Lambert－Ontario Airport
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Lambert－Ontario Airport
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Lambert－Ontario Airport
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Lambert－Ontario Airport
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St. Louis－Ontario
Estimated Flight Time
4 Hours 58 Minutes
St. Louis－Ontario
Number of Operating Airlines
4

Operating Airlines for Lambert－Ontario Airport Route
American Airlines

Alaska Airlines

Delta Air Lines

United Airlines

Other Destinations from:St. Louis

Lambert－Philadelphia(PHL)
USD322〜
* Fares vary in accordance to seat availability
Other Departures to: Ontario

Syracuse Hancock Airport－Ontario(ONT)
USD298〜
Tallahassee Airport－Ontario(ONT)
USD517〜
Tampa Airport－Ontario(ONT)
USD479〜
Tulsa Airport－Ontario(ONT)
USD368〜
* Fares vary in accordance to seat availability