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Flights from St. Louis to Ontario Starting at NZD 48
We've found these cheap flights for you. You can book one-way or return flight tickets.
- One way
- Round-trip
- STL22:3227h 7m1 stopONT23:39Tue, Oct 29|St. Louis - Ontario|Frontier AirlinesNZD 48NZD 11960% OFF60% OFFNZD 119NZD 48
- STL18:466h 58m1 stopONT23:44Sat, Dec 7|St. Louis - Ontario|Frontier AirlinesNZD 90NZD 11924% OFF24% OFFNZD 119NZD 90
- STL17:278h 37m1 stopONT00:04Wed, Nov 13|St. Louis - Ontario|Frontier AirlinesNZD 91NZD 11923% OFF23% OFFNZD 119NZD 91
- STL17:278h 37m1 stopONT00:04Wed, Nov 20|St. Louis - Ontario|Frontier AirlinesNZD 91NZD 91
- STL17:278h 37m1 stopONT00:04Wed, Nov 6|St. Louis - Ontario|Frontier AirlinesNZD 92NZD 92
- STL17:258h 39m1 stopONT00:04Sat, Nov 9|St. Louis - Ontario|Frontier AirlinesNZD 92NZD 92
- STL17:378h 27m1 stopONT00:04Tue, Nov 19|St. Louis - Ontario|Frontier AirlinesNZD 92NZD 92
- STL17:378h 27m1 stopONT00:04Tue, Nov 5|St. Louis - Ontario|Frontier AirlinesNZD 93NZD 93
- STL17:208h 38m1 stopONT23:58Sat, Nov 2|St. Louis - Ontario|Frontier AirlinesNZD 95NZD 95
- STL15:4917h 36m1 stopONT07:25Fri, Nov 1|St. Louis - Ontario|Frontier AirlinesNZD 96NZD 96
- STL13:003h 5mDirectONT14:00Mon, Nov 4|St. Louis - Ontario|Frontier AirlinesFind More FlightsFind More Flights
Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
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Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Airlines Flying from St. Louis to Ontario
Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.
Frontier Airlines
From NZD 48
Delta Air Lines
From NZD 205
Alaska Airlines
From NZD 211
United Airlines
From NZD 224
American Airlines
From NZD 246
Southwest Airlines
From NZD 257
ANA airlines
Find more flights and airlines
Alternative Routes from St. Louis to Ontario
Searching for potential routes that might be cheaper and faster? Check out these alternative flights from St. Louis to Ontario.
- CheapestSTL22:3227h 7m1 transferONT23:39St. Louis Lambert International Airport - Ontario International AirportTue, Oct 29Frontier AirlinesNZD 48
- STL22:3227h 7m1 transferONT23:39St. Louis Lambert International Airport - Ontario International AirportTue, Oct 29Frontier AirlinesNZD 48Find More Flights
FAQ
How to find a cheap flight from St. Louis to Ontario
Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from St. Louis to Ontario. Book your flights at the right time and save more.
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Flight Information from St. Louis to Ontario
Cheapest nonstop flight price | NZD 47 |
---|---|
Cheapest round-trip ticket price | NZD 368 |
Off-season for travel | October |
Peak season for travel | November |
Flight distance | 10,023.47 km |
Popular airline | Frontier Airlines |
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