|Best Price Found||$158||The best flight deal from St. Louis to Ontario found on momondo in the last 72 hours is $158|
|Fastest flight time||5h 49m||The fastest flight from St. Louis to Ontario takes 5h 49m|
|Direct flights||None||There are no direct flights from St. Louis to Ontario. Popular non-direct route for this connection is Lambert-St Louis Airport - Ontario Airport.|
|Airports in Ontario||1 airport||There is 1 airport near Ontario: Ontario (ONT)|
The cheapest time of year to fly to Ontario from St. Louis is August. Most expensive is December
The cheapest day of the week is typically Tuesday. The most expensive is typically Sunday
in the morning
St. Louis to Ontario flights are approximately 24% more expensive in the afternoon than in the morning
American Airlines, Delta, and Frontier are the most popular carriers operating from St. Louis to Ontario
Lambert-St Louis - Ontario
Fly from Lambert-St Louis to Ontario for the best St. Louis - Ontario flight prices
42 days before
The cheapest time to buy a flight from St. Louis to Ontario is approximately 42 days to departure
I tried to check in at the kiosk, this should have been fast because I prepaid for my carry on and wasn’t checking a bag. The kiosk said I needed to get in line to check in and it was a long line. Once I got to an agent, 35 minutes before my plane was to leave, he said I missed checkin and would have to be rescheduled. This new flight was 4 hours longer and then he forgot to return my passport to me, luckily he found me on the way to the restroom. I will do my best not to fly Frontier again.
Basic economy experience needs to be at least on par with other airlines. Gate agent was rude and singled us out to step aside. Bags were lost despite paying for then, and claim agent told me it was because I was basic economy.
Flight attendant for first class is definitely not a morning person. Oh and the WiFi DID NOT WORK!
Due to the global impact of COVID-19, some of our airline partners operating flights from Lambert-St Louis to Ontario, such as American Airlines, Frontier, and United Airlines may have put in place flexible cancellation policies. Use our site to search for all of the airlines offering this flexibility to you.
A flight from Lambert-St Louis to Ontario will travel around 1552.8 mi. 5h 45m is a normal flight duration for this route.