St. Louis (STL) to Ontario (ONT) September 5, 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 5, 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 5, 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
----F-- (Sep 5)
Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
WN1958
Southwest Airlines 		18:00 21:05 5h5m
1 Transfer
----F-- (Sep 5)
Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
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 5, 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.