ONT - STL Price
|
$232 - $428
|
STL Temperature
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44.6 - 89.6 °F
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STL Rainfall
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2.2 - 5.1 inches
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Popular in December High demand for flights, 22% potential price rise |
Cheapest in September Best time to find cheap flights, 31% potential price drop |
Round-trip from $232 From Ontario to Lambert-St Louis Intl |
One-way from $153 One-way flight from Ontario to Lambert-St Louis Intl |
Flights from Ontario to Lambert-St Louis Intl are found to be more expensive on Thursday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Lambert-St Louis Intl.
To save up to 33% on this flight, we recommend booking at least 61 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Ontario to Lambert-St Louis Intl from $143 1-2 weeks out and tickets from $179 for flights departing within the next 72 hours.
The best pricing can be found in the month of June. Prices to Lambert-St Louis Intl from Ontario average $148. You can even find prices in June for less than $148, as users have found deals to Lambert-St Louis Intl from as low as $77. The month of July appears to be one of the more expensive times to travel to Lambert-St Louis Intl from Ontario. Flying in the targeted month can save you up to 34%.
It’s optimal to fly from Ontario to Lambert-St Louis Intl in the afternoon. By choosing this option you can save up to 32% on the cost of your flight, compared to a flight in the morning.
The chart below displays the airlines Cheapflights users traveling from Ontario to Lambert-St Louis Intl choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline | Cheapest | Average | Flexibility | On-time | COVID-19 safety | |
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$104 | $241 | No cancel fee | 62% | ||
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$149 | $333 | No cancel fee | N/A | ||
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$159 | $397 | No cancel fee | 69% | ||
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$159 | $416 | No cancel fee | 71% |