Good to know - Cheap tickets Saint Louis — Ontario
| Flight distance | 2500 km |
|---|---|
| Round-trip from | $116 |
| Cheapest month to fly | October |
Airfare Saint Louis – Ontario by month
Here you can find out in what months how much a ticket Saint Louis – Ontario costs to buy cheap plane tickets.
| Month | One-way | Round-trip |
|---|---|---|
| October 2026 | ||
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Remember that the optimal time for booking air tickets is 59 days before the departure date, this is the average time at which air tickets were sold at the lowest prices.
Popular airlines flying Saint Louis — Ontario
Flight Saint Louis – Ontario is served by 11 airlines.
Dynamics airfare Saint Louis — Ontario by month for the last year
according to LowCost.Club for the last year
The airfare depends on the departure date. Our chart shows the low season prices on route Saint Louis — Ontario
The graph shows that booking flights Saint Louis — Ontario is best planned for October and flights Saint Louis — Ontario — Saint Louis in the month of February.
Flights Saint Louis — Ontario
The selection of cheap flights Saint Louis — Ontario
The price of the flight Saint Louis — Ontario (United States) — Saint Louis from $116 (round-trip).
The average price of the flight Saint Louis — Ontario (United States) — Saint Louis $243 (round-trip).
- Departure city: Saint Louis
- IATA code of the city of origin: STL
- Departure airports: St. Louis Downtown Airport, Spirit of St. Louis Airport, Lambert-St. Louis International Airport
- Departure country: United States
- Destination city: Ontario
- IATA code of the destination city: ONT
- Destination airports: Ontario International Airport, International Heliport
- Destination country: United States
Low cost flights Saint Louis — Ontario (STL — ONT)
The distance between Saint Louis and Ontario 1553 miles (or 2500 kilometres).
The time difference between Saint Louis and Ontario is 2 h.
Routes from nearby cities to Ontario
A flight from a neighbouring city can help you save money on plane tickets.
The closest airports to Saint Louis with a flight to Ontario are in Kansas City.
Popular International routes from Saint Louis
Popular routes from Ontario
If you are going to fly from Ontario, then study the popular flights. The most popular flights from Ontario:
Popular domestic routes from Saint Louis
FAQ about Saint Louis — Ontario
Can we fly from Saint Louis to Ontario?
Yes, you can fly from Saint Louis to Ontario. Saint Louis has 3 airports (St. Louis Downtown Airport, Spirit of St. Louis Airport, Lambert-St. Louis International Airport) for flights. There are non-direct flights through Alaska Airlines, Alpine Air Express, American Eagle, Delta Connection, FedEx, Frontier (Penny the Owl Livery), NetJets, SkyWest Airlines, Southwest Airlines, United Express, UPS.
How much do flights Saint Louis — Ontario cost?
The price of flights Saint Louis — Ontario starts from $116.
What airports are there in Saint Louis and Ontario?
In Saint Louis — St. Louis Downtown Airport, Spirit of St. Louis Airport, Lambert-St. Louis International Airport. In Ontario — Ontario International Airport, International Heliport.
What month is the cheapest to fly from Saint Louis to Ontario?
High season is considered to be April and the cheapest month is October. Enter your preferred airports (or cities) and dates into the search form above to unlock the latest Saint Louis — Ontario flight deals.
Which airlines fly from Saint Louis to Ontario?
All the following airlines flights Saint Louis — Ontario: Alaska Airlines, Alpine Air Express, American Eagle, Delta Connection, FedEx, Frontier (Penny the Owl Livery), NetJets, SkyWest Airlines, Southwest Airlines, United Express, UPS.