$137 Cheap flight deals from St. Louis (STL) to Mountain Home (BOI)
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This Weekend's Flight Deals from St. Louis to Mountain Home
This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
Airfares from $137 One Way, $252 Round Trip from St. Louis to Mountain Home
Prices starting at $252 for return flights and $137 for one-way flights to Mountain Home were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
Mountain Home economy flight packages
Shilo Inn Suites Hotel - Nampa Suites - Idaho
Nov 7 - Nov 15
St. Louis (STL) to Boise (BOI)
Reviewed on Jul 13, 2023
The Avery Hotel
Nov 2 - Nov 9
St. Louis (STL) to Boise (BOI)
Reviewed on Aug 14, 2025
Boise Guest House
Nov 7 - Nov 15
St. Louis (STL) to Boise (BOI)
Reviewed on Oct 2, 2024
More About Flying To Mountain Home from St. Louis
Route Information for Flights from St. Louis to Mountain Home
Origin Airport IATA Code | STL |
|---|---|
Destination Airport IATA Code | BOI |
Distance | |
Direct Flight Airlines | |
Earliest Flight Arrival | |
Latest Flight Arrival |
St. Louis to Mountain Home
When you’re searching for St. Louis to Mountain Home flights for your family vacation, check out the guaranteed low prices at Orbitz. If you are looking for the best prices on hotels too, you’ll be sure to find great deals to suit your budget. You’ll also benefit from the following features:
Suitable Schedules
Orbitz simplifies the process of finding and booking budget flights from St. Louis to Mountain Home. Since we monitor hundreds of flight fares, you can compare several flights from a range of different airlines to find the best fares and most suitable departure and arrival times. Mix and match your departure and return flight for even more discounts and travel flexibility.
Mobile Apps
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Flight Alerts
Orbitz won’t leave you wondering whether your flight will take off on time. We can send you free alerts about your flights from St. Louis to Mountain Home to your mobile phone and email. Whether your flights from St. Louis to Mountain Home are running just a few minutes to a few hours late, we will let you know.
Miles and Points
If you travel regularly, you can still earn miles and points when you book qualifying St. Louis to Mountain Home flights. Enter your frequent flyer number with your reservation to see the miles rack up.
Flights from St. Louis
- St. Louis to Orlando
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- St. Louis to Denver
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- St. Louis to Phoenix
- St. Louis to Los Angeles
- St. Louis to New Orleans
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- St. Louis to Washington
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- St. Louis to London
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- St. Louis to Rome
- St. Louis to Montreal
- St. Louis to Vancouver
St. Louis Airports
Mountain Home Airports
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Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.
Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.
Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.