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Fares from $145 One Way, $188 Round Trip from St. Louis to Idaho Falls

Prices starting at $188 for return flights and $145 for one-way flights to Idaho Falls were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

More About Flying To Idaho Falls from St. Louis

Route Information for Flights from St. Louis to Idaho Falls

Origin Airport IATA CodeSTL
Destination Airport IATA CodeIDA
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

Plan Your Trip from St Louis to Idaho Falls

Lambert-St. Louis International Airport

Planning a trip on a budget can often be a challenge. Orbitz.com allows travelers to search many different airlines at once to find cheap flights from St. Louis, Missouri. The Lambert-St. Louis International Airport is located 15 miles northwest of downtown on Airflight Drive. Thirteen airlines provide services to the airport, including US Airways, United Airlines, Delta and American Airlines.

Parking at the Airport

Parking at the Lambert-St. Louis International Airport is provided by Super Park. Both long-term and short-term parking are available. Shuttle services are available 24 hours a day to and from the parking areas to the main terminal. Super Park ensures the closest parking available, and in many cases, parking is within walking distance to the terminal. Fees are charged by the hour or by the day with discounts for weekly parking.

Transportation to the Airport

Go Best Express Airport Shuttle offers shared shuttle rides to and from all downtown hotels and businesses in St. Louis. Shuttles are available every 15 to 30 minutes all day, and reservations are recommended. The MetroLink has 37 stations that provide service to and from the airport. The Link is available for a flat fee. The Metropolitan Taxicab Commission services the Lambert-St. Louis International Airport, and it provides metered transportation in and around St. Louis. Exact fares depend on the destination, and taxis require an additional $3 airport fee. Limos are available for rent by the day or by the hour, and many local hotels provide complimentary shuttles to and from the airport for their guests. Orbitz.com can assist travelers in locating cheap car rental agencies in the area.

Dining Options at Lambert-St. Louis International Airport

The Lambert-St. Louis International Airport offers many excellent food options for those who want to eat before their flight. The Great American Bagel Company offers many bagel varieties, as well as fresh coffee and juice. Starbucks is available at the Lambert's East Terminal and has a selection of blended coffees and bakery items. For travelers who prefer a sit-down meal before reaching the airport, Half and Half is located near the airport in St. Louis and offers eggs, toast, bacon and fresh donuts. For individuals looking for travel deals, Orbitz.com can provide assistance in locating cheap flights from St. Louis.

Idaho Falls Airport Information

Orbitz.com can help you find cheap flights to Idaho Falls. The Idaho Falls Regional Airport is located at 2140 N. Skyline Drive in the northwest section of downtown, two miles from the center of the business district. It offers regional service to Salt Lake City, Denver, San Francisco, Las Vegas, Los Angeles, Oakland and Phoenix on Skywest/Delta Airlines, United Express and Allegiant Air. The closest international airport is Salt Lake International Airport in Salt Lake City, but that airport is a three-hour drive from Idaho Falls and can be an impractical choice in bad weather.

Idaho Falls Airport Transportation Options

Idaho Falls Regional Airport does not offer any mass transit options for getting to or from the airport. However, the airport is located in the downtown area, so it is feasible to walk to many of the local hotels if you don't have too much luggage. Most of the downtown hotels offer free shuttle service to the airport. Other options for transportation include taxicab service and rental cars. For approximately $10, you can take a taxi from the airport to most points in the downtown area. Avis, Budget, National, Enterprise, Thrifty, Alamo and Hertz rental car companies have an outlet at the airport. Orbitz.com can help you find the best price on a rental car when you make your flight reservations.

Weather Information for Idaho Falls

Idaho Falls averages 38 inches of snowfall annually in the winter months, so travel during this time of the year can be difficult unless you are planning your trip around winter sports options. July is the area's hottest month of the year, with an average temperature around 86 degrees F, whereas January is the coldest, with average temperatures as low as 10 degrees F.

Popular Attractions in the Idaho Falls Area

Idaho Falls River Walk, the Tautphaus Park Zoo and the Museum of Idaho are popular attractions in the local area. If you rent a car and are willing to drive a short distance, Yellowstone National Park, Grand Teton National Park and Targhee National Forest are all within 100 miles. Orbitz.com can help you find sales and low-cost tickets to local attractions, as well as help you buy cheap flights to Idaho Falls whenever you want to travel.

Flights from St. Louis to Idaho Falls - Frequently Asked Questions

What is the shortest flight from St. Louis to Idaho Falls?

Getting from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional) will take a minimum of 3 hours and 38 minutes. Enjoy a tipple and watch a movie or two — here's your chance to sit back and chill out.

What airlines fly from St. Louis to Idaho Falls most frequently?
If I am not able to travel due to COVID-19, can I cancel my flight to Idaho Falls?

We get that traveling right now has its challenges, so it's good to know that many reservations booked through us are able to be cancelled or changed. If your travel plans to Idaho Falls have been affected by COVID-19, a lot of airlines are making things easier by offering credits to use at a later date. Just sign in to your account and you'll quickly see what options are available. Our Customer Service Portal is the place to go for more information.

Are there flights to Idaho Falls with flexible change policies?

In most cases you'll have the option to reschedule your flight to Idaho Falls without a change fee. All you have to do then is pay the difference between the old flight and the new one. Look for the "no change fees" filter and book with confidence.

What is the cheapest day of the week to fly?

Consider flying out early in the week to save on your airfare. Orbitz data from 2019 shows that Tuesday is the cheapest day to depart, followed by Monday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.

What is the cheapest month to fly?

We won't keep you guessing, according to Orbitz data the cheapest month to fly is February. Perfect for those who need a weekend getaway, or just a fresh start to the new year. Be aware that the most expensive time to fly isn't the height of summer, as most people assume, but the festive month of December.

How can I save money on flights?

To really save big on your next vacation, think outside the box. Select two different airlines or fare types for your return trip and you'll generally get a much better deal. Those who tried this on Orbitz in 2019 saved over 50% on their airfares. Get mixing and matching today!

*According to flight demand on Orbitz.com from January to December 2019. Savings are subject to change based on departure location, date and destination.

^Savings based on all package bookings with Flight + Hotel made on Orbitz.com from January 1, 2019 to December 31, 2019 as compared to the price of the same components booked separately. Savings will vary based on origin/destination, length of trip, stay dates and selected travel supplier(s). Savings not available on all packages.