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

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Frequently asked questions

How much is a flight from BOI to Lambert-St. Louis Intl. Airport (STL)?
Start packing your bags, because round-trip flights between BOI and St. Louis Lambert International Airport start from . That’s based on airfares available within the last 7 days on Expedia for flights departing within the next year. Prices can rise quickly, so book now to get the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Boise Airport to St. Louis Lambert International Airport?
Each air carrier has its own set of terms and conditions. If you do decide to cancel, follow the simple instructions on our Customer Service Portal.
How do I find cheap flights from BOI to Lambert Field 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 Boise Airport (BOI) to STL flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from Boise Airport (BOI) to Lambert-St. Louis Intl. Airport (STL)?
The flying distance between Boise Airport (BOI) and STL (STL) is 2,200 kilometres. Listen to your favourite tunes or bury your nose in a book and the journey will zip on by.
Which airlines fly direct from Boise Airport to Lambert Field?
You won’t find any airlines operating directly between Boise Airport and Lambert Field, so be prepared to make at least one stop on your journey. A layover, whether short or long, can be a welcome way to break up a trip!
Are Boise Airport to Lambert-St. Louis Intl. Airport (STL) flight tickets cheaper when they're purchased at the last minute?
Fares from Boise Airport (BOI) to St. Louis Lambert International Airport are available up to 12 months prior to departure on Expedia. And although you may occasionally pick up a fantastic last-minute deal, it’s not something you should count on. Also, booking your flights in advance means you’ll have more options — and you can avoid getting trapped in the dreaded middle seat! We regularly update our fares to bring you the biggest bargains, so check back often for all the latest specials.
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