$43 Cheap Flights from Boise (BOI) to St. Louis (STL)

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Cheap Flights from Boise to St. Louis (BOI-STL)

Prices were available within the past 7 days and start at $43 for one-way flights and $118 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Spirit Airlines
Spirit Airlines
Spirit Airlines
Spirit Airlines
Spirit Airlines
Spirit Airlines
Spirit Airlines
Spirit Airlines
Spirit Airlines
Flights from Boise (BOI) to St. Louis (STL)
Origin airport
Boise
Destination airport
Lambert-St. Louis Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Spirit Airlines, United
Roundtrip price
$117
Distance
1379 mi

Boise to St. Louis Flights

Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from Boise to St. Louis offer the perfect respite. Not only does exploring St. Louis provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap airfare means you won’t bust your budget. So no matter whether your ideal itinerary involves flying one way, non-stop, or round trip, you’re bound to find flights that match your schedule on Expedia, and at prices that won’t shock your wallet.

Bagging a cheap flight from Boise to St. Louis may mean more dollars to spend on for one-of-a-kind souvenirs when you arrive, but it doesn’t mean you have to skimp on your travel experience, as Expedia offers a sizzling selection of cheap airlines that’ll put you in your happy place on their planes, whether that’s getting lost in a hair-raising airport thriller, dreaming on the passing landscape over a glass of bubbly, or jotting down your vacation bucket list at 38,000 feet. There’s also bound to be plenty of opportunities to snap a few photos of the high life that will make your friends green with envy. After all, enjoying the journey is part of the fun.

With so many affordable flights and so many wonderful adventures awaiting you, there’s no reason to put off booking a fantastic flight from to today. So don’t leave it to the last minute to make your dream trip a reality: pack your bags with your go-to travel accessories, put together your list of must-see attractions and can’t-miss activities, and get ready to broaden your horizons – with Expedia, the wonders of St. Louis are only a plane trip away. Book your travel arrangements with us today!

If you would like to book flights to St. Louis more flexibly many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to St. Louis is $43 now!

Frequently asked questions

Is it cheaper to buy a plane ticket from BOI to St. Louis Lambert International Airport last minute?
Being a spontaneous soul is a wonderful way to travel the world, but it’s not always the ideal way to score a cheap airfare. Consider booking your Boise Airport (BOI) to Lambert Field journey in advance instead of leaving it till the last minute. Based on flight pricing and demand studies in 2022, we have found that the best time to book domestic flights is between 28 – 35 days ahead of the departure date, and international flights three to four months in advance. Save all that spontaneity for when you’re exploring Lambert Field!
What is the cheapest airline flying from BOI to Lambert Field in the next 90 days?
The cheapest carrier traveling from Boise to St. Louis found on Expedia is Spirit Airlines, with fares starting at $66. This price is based on fares found on Expedia with a departure date within the next 90 days. The flight takes off from BOI on June 18 2024 and touches down at Lambert-St. Louis Intl. Airport (STL). The pricing information was updated on June 5 2024 and has not changed since.
What's the cheapest price for a flight from BOI to STL next month?
With a one-way flight from Boise to St. Louis on offer for only $66, you’ll have extra cash left in your wallet for sightseeing. This fare was found after looking at all available flights on Expedia within the next 30 days. This particular journey departs Boise Airport (BOI) on June 18 2024, lands at Lambert Field and is operated by Spirit Airlines. This price was last updated on June 5 2024 and has not changed since.
What airports do you fly into for Central United States from Boise?
There are three airports you can fly to on your journey from Boise to Central United States: Lambert-St. Louis Intl. Airport (STL), Spirit of St. Louis Airport (SUS) and St. Louis Downtown Airport (CPS). Lambert-St. Louis Intl. Airport (STL) is about 180 mi east of the middle of Central United States. Before selecting where to disembark, think about ticket prices and flight times, the distance to where you’re staying and the cost and convenience of getting from the airport.
Can I change the date of my flight from Boise Airport to STL?
Plans can change, so Expedia is here to help make things as easy as possible. First, find your Boise Airport (BOI) to STL itinerary through the Expedia Trips portal and look up the ticket rules and conditions to see if you can make changes. If you purchased your airfare in the last 24 hours, some airlines will let you cancel at no cost and organize new flights. If you bought your ticket more than 24 hours ago, get in touch with us through our Customer Service portal to see how we can assist.
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