BOI - STL Price
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$255 - $609
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STL Temperature
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32 - 80.6 °F
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STL Rainfall
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2.2 - 4.7 inches
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Popular in May High demand for flights, 34% potential price rise |
Cheapest in January Best time to find cheap flights, 37% potential price drop |
Average price $442 Average for round-trip flights in June 2022 |
Round-trip from $255 From Boise Air Term. Gowen Fld to Lambert-St Louis |
When flying from Boise to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 25% versus a flight in the evening.
Users have found that booking a flight from Boise to St. Louis at least 49 days early can save you up to 65% on average compared to booking a flight this week. If booking 49 days before your flight isn’t an option for you, users have found flights from Boise to St. Louis for as little as $414 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $552 for flights departing within the next 3 days.
Departing on a Monday is a good option for securing a great price. You can expect to save up to 70% when planning your travel around this day of the week.
Airline | Cheapest | Average | Flexibility | On-time | COVID-19 safety | |
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$129 | $399 | No cancel fee | 75% | ||
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$208 | $421 | No cancel fee | 69% | ||
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$238 | $508 | No cancel fee | 71% | ||
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$254 | $469 | No cancel fee | N/A |