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Ontario, California to St Louis Last modified: Mar 26, 2023 2:01 -04:00
Oops... We've scanned 92,331,858 round trip itineraries and didn't find any recent prices to St Louis that we think are great deals. Run an airfare search now to update and compare prices. Find Flights
Where To Buy Cheap Flights from Ontario, California to St Louis?
The best way to find a great deal on airfare is to search multiple sites. When you run a search on FareCompare, we search multiple sites and fare sources all at once so you don't have to - which is why we think FareCompare is the best place to find cheap tickets. Airlines can adjust prices for tickets from Ontario, California to St Louis based on the day and time that you decide to book your flight. We have collected data from all airlines, and have found that Tuesdays, Wednesdays, and Saturdays are often the best days to book flights. If you'd like to learn more, read our article about the best time to buy airline tickets.
Cheapest Day To Fly from Ontario, California to St Louis
We've examined 184,663,716 itinerary searches that we've seen for departures in the next 90 days and found that the cheapest day to fly from Ontario, California to St Louis is Tuesday. See the chart below to compare prices for other days of the week.
Compare Flight Prices from Ontario, California to St Louis by Month
Low priced flights are most commonly available by purchasing between one and three months in advance. International or holiday flights may need to be purchased even further in advance. The chart below shows the cheapest flight prices by month for Ontario, California to St Louis flights.
|Month||Origin||Destination||Carrier||Depart Date||Return Date||Stops||Price|
|July||Ontario, California||St Louis||00||7/20/21||8/4/21||0||$177|
|August||Ontario, California||St Louis||00||8/10/21||8/14/21||0||$179|
|September||Ontario, California||St Louis||00||9/17/21||10/1/21||0||$320|
|October||Ontario, California||St Louis||00||10/19/21||10/26/21||0||$266|
|November||Ontario, California||St Louis||00||11/3/21||11/10/21||0||$266|
|January||Ontario, California||St Louis||00||1/9/22||1/15/22||0||$991|
|March||Ontario, California||St Louis||00||3/12/22||3/16/22||0||$565|
Cheap Last Minute Flights from Ontario, California to St Louis
Looking for cheap last minute flights or a weekend getaway? We've got you covered with weekend flight deals from Ontario, California to St Louis. The chart below shows the best last minute deals and cheap flights this weekend we could find.
Next 30 Days
Connecting Flights vs Direct Flights from Ontario, California to St Louis
Flights between some cities may be significantly cheaper if you choose a multi-stop airline ticket. Although these connecting flights sacrifice some convenience, on average, travelers save 20%-60% when they choose to fly multi-stop versus a direct flight.
The average price for connecting flights from Ontario, California to St Louis is not available.
The average price for direct flights from Ontario, California to St Louis is $254.
One Way Flights vs Round Trip Flights from Ontario, California to St Louis
We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from Ontario, California to St Louis. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.
The average price for one way flights from Ontario, California to St Louis is $150.
The average price for round trip flights from Ontario, California to St Louis is $254.
Airlines in Ontario, California flying to St Louis Last modified: Mar 26, 2023 2:01 -04:00Number of routes searched: 0Number of itineraries searched: 0
Wondering which airlines fly out of Ontario, California to St Louis? We've gathered the average price of Ontario, California airlines with flights to St Louis. Different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.
Ontario, California to St Louis Airports
These are the major commercial airports we're currently monitoring in Ontario, California and St Louis. If your route includes a city with multiple airports, you may be able to find substantial savings by choosing an alternate airport.
Farecompare Research Tools
FareCompare's Flight Schedule Search Tool helps you find information about airline schedule filings, including flight numbers, depart times, and travel distance.
Cheap Domestic Flights from Ontario - ONT Last modified: Mar 26, 2023 2:01 -04:00
|Ontario, California to Chicago||Check Dates|
Cheap Domestic Flights to St Louis - STL Last modified: Mar 26, 2023 2:01 -04:00
Cheap International Flights to St Louis - STL Last modified: Mar 26, 2023 2:01 -04:00
|Los Angeles, California to Toronto||$326|