St. Louis (STL) to Ontario (ONT) September 11, 2025 Flight Schedule

Flight St. Louis(STL) to Ontario(ONT)
CHANGE DIRECTION

St. Louis Lambert International Airport LA/Ontario International Airport
STL : St. Louis , United States ONT : Ontario , United States
UTC-5(DST) UTC-7(DST)

St. Louis to Ontario Flight Schedule(September 11, 2025)

Flight from St. Louis(STL) to Ontario(ONT) is operated by 1 airline : Southwest Airlines (WN). You can check flight schedules, flight duration, and aircraft types.

Change Direction(ONT to STL)

St. Louis (STL) to Ontario (ONT) Flight Schedule

LastUpdate : 2025/09/01 06:53

Flight Schedule on September 11, 2025 , Direct flight departure from St. Louis with all airlines , flight number, flight duration, aircraft type.

September 2025
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Flight Number / Airline Departure Time Arrival Time Flight Duration Operating Days Aircraft Type Airfare / Tickets
WN680
Southwest Airlines 		16:40 19:55 5h15m
1 Transfer
---T--- (Sep 11)
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WN1958
Southwest Airlines 		18:00 21:05 5h5m
1 Transfer
---T--- (Sep 11)
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Change Direction(ONT to STL)
Flight schedules as of September 01, 2025, 06:53 AM(OAG data). Schedules may change without notice, so please check with airlines before booking. Refer to FlyTeam's terms of use before proceeding. Some airlines and flight numbers may not be displayed.

FAQ : St. Louis to Ontario

How many airlines fly from St. Louis to Ontario ?
As of September 11, 2025, 1 airline operate direct flights from St. Louis (STL) to Ontario (ONT) : Southwest Airlines.
What is the time difference between St. Louis to Ontario?
The time difference between St. Louis Lambert International Airport(St. Louis) and LA/Ontario International Airport(Ontario) is -2 hours. Ontario is 2 hours behind St. Louis.St. Louis is currently observing daylight saving time (DST) from March 9, 2025 to November 2, 2025.Ontario is currently observing daylight saving time (DST) from March 9, 2025 to November 2, 2025.