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

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Frequently asked questions

How much is a flight from STL to Boise Airport?
Round-trip flights between Lambert Field and Boise Airport start from . This price is based on fares available within the last 7 days on Expedia for flights departing within the next year — make your booking ASAP to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from STL to Boise Airport?
This varies between airlines, as each one has its own terms and conditions. Head to the Customer Service Portal, where there are instructions on how to cancel online.
How do I find cheap flights from Lambert Field to Boise Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for Lambert-St. Louis Intl. Airport (STL) to Boise Airport flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from STL to Boise Airport (BOI)?
Around 2,200 kilometers separates St. Louis and Boise, so pack some in-flight entertainment to keep you busy for a few hours. That gripping novel you haven’t finished will do the trick.
Which airlines fly direct from Lambert-St. Louis Intl. Airport (STL) to Boise Airport?
Right now, no airlines offer flights directly from Lambert Field to Boise Airport (BOI). You’ll have to book a flight with one or more stops. To get the best price and connections, lock in your fare ahead of time.
Are St. Louis Lambert International Airport to BOI flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can occasionally nab a bargain, with some super cheap airfares from Lambert-St. Louis Intl. Airport (STL) to Boise Airport (BOI) appearing a few weeks prior to the departure date. If you’d rather plan ahead of time, Expedia compares and updates all the best flight deals continually — as early as 12 months in advance in some cases. It does depend on the carrier though, as not every airline advertises prices that far in advance.
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