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*Note: All fares are quoted in USD.
Last updated on Friday 06-27-2025 at 05:00 AM, the fares mentioned above are for flight tickets and inclusive of fuel surcharges, service fee and taxes . Based on historical data, these fares are subject to change without prior notice and cannot be guaranteed at the time of booking. Kindly go through our terms and conditions before booking.

Book Cheap Flights from Boise to St. Louis on FaresMojo

Book affordable flights from Boise to St. Louis on FaresMojo! Enjoy fantastic discounts and savings on flights to St. Louis from Boise. We offer a wide range of exclusive deals to help you save on flights from BOI to STL. Whether you're traveling for business or leisure, find the best flight options to suit your needs and budget.

Take advantage of our low-cost flight deals from Boise to St. Louis and enjoy a budget-friendly trip. Book your flight online or reach out to our 24/7 customer support team to find the best airline tickets to St. Louis from Boise.

Did You Know Facts on Flights from Boise to St. Louis?

  • Average airfare to St. Louis from Boise can range from $148.50 to $711.70. Early bookings often help secure the best prices on flight tickets.
  • St. Louis Lambert International Airport (STL) is served by over 14 airlines and handles approximately 15,632,586 passengers annually.
  • American Airlines, Alaska Airlines, and Frontier Airlines are the major airlines offering regular direct and connecting flights from Boise to St. Louis.
  • The first flight of the day from Boise departs around 12:25 AM.
  • June to August is the peak season for travel to St. Louis, with higher tourist activity.
  • November to February is the off-peak season, making it the least crowded time to visit St. Louis.
  • On average, there are about 127 direct and connecting flights departing from BOI to STL.
  • January is the most affordable time to fly from Boise to St. Louis, with potential savings on both flights and hotel rates.
  • The average flight time from Boise to St. Louis is around 3 hours 16 minutes.
  • The flight distance from Boise to St. Louis is approximately 1,383 miles.
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