Good to know - Cheap tickets Ontario — Saint Louis
| Flight distance | 2500 km |
|---|---|
| Round-trip from | $75 |
| Cheapest month to fly | October |
Airfare Ontario – Saint Louis by month
Here you can find out in what months how much a ticket Ontario – Saint Louis costs to buy cheap plane tickets.
| Month | One-way | Round-trip |
|---|---|---|
| January 2027 | ||
| September 2026 | ||
| August 2026 | ||
| June 2026 | ||
| May 2026 | ||
| April 2026 | ||
| March 2026 | ||
| February 2026 | ||
| January 2026 | ||
| November 2025 | ||
| October 2025 | ||
| September 2025 |
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 Ontario — Saint Louis
Flight Ontario – Saint Louis is served by 11 airlines.
Dynamics airfare Ontario — Saint Louis 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 Ontario — Saint Louis
The graph shows that booking flights Ontario — Saint Louis is best planned for October and flights Ontario — Saint Louis — Ontario in the month of April.
Flights Ontario — Saint Louis
The selection of cheap flights Ontario — Saint Louis
The price of the flight Ontario — Saint Louis (United States) — Ontario from $75 (round-trip).
The average price of the flight Ontario — Saint Louis (United States) — Ontario $309 (round-trip).
- Departure city: Ontario
- IATA code of the city of origin: ONT
- Departure airports: Ontario International Airport, International Heliport
- Departure country: United States
- Destination city: Saint Louis
- IATA code of the destination city: STL
- Destination airports: St. Louis Downtown Airport, Spirit of St. Louis Airport, Lambert-St. Louis International Airport
- Destination country: United States
Low cost flights Ontario — Saint Louis (ONT — STL)
The distance between Ontario and Saint Louis 1553 miles (or 2500 kilometres).
The time difference between Ontario and Saint Louis is 2 h.
Routes from nearby cities to Saint Louis
A flight from a neighbouring city can help you save money on plane tickets.
The closest airports to Ontario with a flight to Saint Louis are in Las Vegas.
Popular International routes from Ontario
Popular routes from Saint Louis
If you are going to fly from Saint Louis, then study the popular flights. The most popular flights from Saint Louis:
Popular domestic routes from Ontario
FAQ about Ontario — Saint Louis
Can we fly from Ontario to Saint Louis?
Yes, you can fly from Ontario to Saint Louis. Ontario has 2 airports (Ontario International Airport, International Heliport) 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 Ontario — Saint Louis cost?
The price of flights Ontario — Saint Louis starts from $75.
What airports are there in Ontario and Saint Louis?
In Ontario — Ontario International Airport, International Heliport. In Saint Louis — St. Louis Downtown Airport, Spirit of St. Louis Airport, Lambert-St. Louis International Airport.
What month is the cheapest to fly from Ontario to Saint Louis?
High season is considered to be January and the cheapest month is October. Enter your preferred airports (or cities) and dates into the search form above to unlock the latest Ontario — Saint Louis flight deals.
Which airlines fly from Ontario to Saint Louis?
All the following airlines flights Ontario — Saint Louis: Alaska Airlines, Alpine Air Express, American Eagle, Delta Connection, FedEx, Frontier (Penny the Owl Livery), NetJets, SkyWest Airlines, Southwest Airlines, United Express, UPS.