Saint Louis to Ontario Flight Tickets
Compare the best flight deals from Saint Louis to Ontario
Ara
About Saint Louis - Ontario Flights
Find the best prices for flights between Saint Louis (United States) and Ontario (United States) on Tripuck. We compare prices from hundreds of airlines to offer you the best options.
Saint Louis has 2 airports, while Ontario has 1 airports. Compare flights between all airports to find the best deal.
Cheapest Months for Saint Louis - Ontario Flights
Best month to fly
June 2026 - 4,249 ₺
June 2026
4,249 ₺
1 stops
CheapestApril 2026
8,936 ₺
1 stops
August 2026
10,859 ₺
1 stops
| Ay | Flight Type | Price |
|---|---|---|
| June 2026Cheapest | 1 stops | 4,249 ₺ |
| April 2026 | 1 stops | 8,936 ₺ |
| August 2026 | 1 stops | 10,859 ₺ |
Prices may change. Based on recent searches.
Popular Saint Louis - Ontario Flights
Saint Louis - Ontario
Airlines on Saint Louis - Ontario Route
| Havayolu | Uçuş Tipi | Fiyat |
|---|---|---|
 Frontier Airlines | 1 stops | 8,936 ₺ |
Saint Louis Airports
Ontario Airports
Alternative Routes
Alternative Routes from Saint Louis
Frequently Asked Questions About Saint Louis - Ontario Flights
The cheapest Saint Louis to Ontario flight tickets start from 8,936 ₺. Prices may vary depending on the season, airline, and booking time.
For Saint Louis, you can use Spirit of St. Louis Airport (SUS), Lambert-St. Louis International Airport (STL). For Ontario, you can use Ontario International Airport (ONT).
The flight duration from Saint Louis to Ontario varies for direct flights. Connecting flights may take longer depending on the number of layovers.
Several airlines operate on the Saint Louis to Ontario route. Search for the latest list of airlines.
The cheapest Saint Louis to Ontario flights are usually found in Nisan and on Perşembes.
Frontier Airlines offers the cheapest Saint Louis to Ontario flights starting from 8,936 ₺.