$609 Cheap Flights from St. Louis (STL) to Pocatello (PIH)

View $609 flight on Mon, Oct 13, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Pocatello, ID (PIH-Pocatello Regional)

Cheap Flights from St. Louis to Pocatello (STL-PIH)

Prices were available within the past 7 days and start at $609 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Pocatello Regional Airport (PIH) cost?
Secure a cheap one-way flight from $609 or cheap return flight from Lambert-St. Louis Intl. Airport (STL) to Pocatello Regional Airport (PIH) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Pocatello Regional Airport (PIH)?
Traveling in is a great way to save, as it's the cheapest month for flights between STL and PIH. You'll usually find the lowest fares during off-peak months.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Pocatello Regional Airport (PIH)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest STL to PIH flight.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Pocatello Regional Airport (PIH)?
You'll have to take a flight with a layover if you're traveling from Lambert-St. Louis Intl. Airport (STL) to Pocatello Regional Airport (PIH). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from STL to PIH?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary depending on a number of factors, including the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Pocatello Regional Airport (PIH)?
Opt for a flight from Lambert-St. Louis Intl. Airport (STL) to Pocatello Regional Airport (PIH) that takes off before 3 PM to reduce the risk of cancellations and delays. Departures later than this are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Pocatello Regional Airport (PIH) last-minute?
Last-minute fares from STL to PIH are usually more expensive. To secure the best rates, start looking for flights as soon as possible. That being said, if you're flexible with your travel dates, you may land a cheap fare right before you leave.
Is it cheaper to book a STL to PIH flight and hotel package?
Compared with arranging hotels and flights separately, booking a STL to PIH flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one convenient place will take the hassle out of planning your trip. Simply pick your flights and select from our wide range of stays, then personalize your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Pocatello Regional Airport (PIH)?
Typically, you can cancel or reschedule your STL to PIH flight. However, there may be additional charges, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you'd like further information, head to our Customer Service portal.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Pocatello Regional
Distance
1193 mi

Book with confidence

St. Louis to Pocatello Flights

The cheapest times to fly from St. Louis to Pocatello

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Pocatello are during the month of . You can find some of the cheapest flights from St. Louis to Pocatello with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Pocatello

Sunday is one of the best days to book for cheap flights from St. Louis to Pocatello: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Pocatello

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Pocatello in 2025. You can also book with separate airlines for your outbound and return journeys, from $609 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Pocatello flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Pocatello airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

St. Louis to Pocatello Flights

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*Available to One Key members.