Cheap Flights from St. Louis to Idaho Falls

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Idaho Falls Regional Airport (IDA)

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Find the cheapest month to fly from St. Louis (STL) to Idaho Falls (IDA)

September is typically the cheapest month to fly

From S$385 - S$824 per traveller.

Frequently asked questions

How much is a flight from STL to Idaho Falls Regional Airport?
Round-trip flights from Lambert-St. Louis Intl. Airport (STL) to Idaho Falls Regional Airport start from . This price is based on fares available within the last 7 days on Expedia for flights departing within the next year — book today so you don't miss 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 Lambert Field to IDA?
We get that things crop up unexpectedly, so we've made it as easy as possible for you to cancel your flight online. Just visit the Customer Service Portal and follow the instructions.
How do I find cheap flights from STL to IDA 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 St. Louis Lambert International Airport to Idaho Falls Regional Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Lambert-St. Louis Intl. Airport (STL) to Idaho Falls Regional Airport?
Around 1,900 kilometres separates St. Louis and Idaho Falls, so pack some in-flight entertainment to help you while away a few hours. That juicy novel you haven't started will be ideal.
Which airlines fly direct from Lambert Field to Idaho Falls Regional Airport?
You won't find any airlines flying directly between Lambert-St. Louis Intl. Airport (STL) and Idaho Falls Regional Airport (IDA), 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 Lambert-St. Louis Intl. Airport (STL) to IDA flight tickets cheaper when they're purchased at the last minute?
Flight prices from Lambert-St. Louis Intl. Airport (STL) to Idaho Falls Regional Airport are available up to a year prior to departure on Expedia. And although you may occasionally pick up fantastic last-minute deals, it's never a sure thing. Also, booking your flights well in advance means you'll have more choices — and you can avoid ending up with the dreaded middle seat! We're always updating our fares to bring you the best bargains, so check back often for all the latest specials.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Idaho Falls Regional
Distance
1876 km

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Perfect flights from St. Louis to Idaho Falls

Your Journey from St. Louis to Idaho Falls

Start your unforgettable journey with Expedia. Our broad selection of flights from St. Louis to Idaho Falls caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including . Our selection of flights from Lambert-St. Louis Intl. to Idaho Falls Regional caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from airlines, you're bound to find the perfect flight.
 

Maximizing Value with St. Louis to Idaho Falls Flights

Experience the joy of finding cheap flights from Lambert-St. Louis Intl. to Idaho Falls Regional that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares and roundtrip prices *.
 

Pre-Flight Essentials

Ensure a smooth journey from St. Louis to Idaho Falls with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Idaho Falls

Picture yourself stepping off the plane in Idaho Falls and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your St. Louis to Idaho Falls Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from St. Louis to Idaho Falls.
 

Beyond the Flight – Exploring Idaho Falls

With Expedia, your adventure extends beyond the flight. Explore Idaho Falls at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from St. Louis to Idaho Falls with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from St. Louis to Idaho Falls with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.
Perfect flights from St. Louis to Idaho Falls

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