Cheap flights from St. Louis to Boise from $316
This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Boise departing on 2/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from St. Louis to Boise
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Boise?
The month of October is, on average, the cheapest month to fly to Boise from St. Louis, with most prices found around $351. If you aren’t able to travel during the month of October, then book flights to Boise from St. Louis during January instead. Flights to Boise in January, while not as cheap as those in October, still average around $366.
What is the cheapest day to depart on your flight to Boise?
Our data shows that Wednesday is the least expensive day to fly to Boise. Tickets to fly out on this day can be as low as $371. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $590. These prices are subject to change though, so be sure to set up a Price Alert for flights to Boise.
What is the cheapest time of day to depart on your flight to Boise?
Our data shows that the cheapest St. Louis to Boise flights are usually those with departure times at noon. Our users have found flights to Boise at noon for as low as $435. In the afternoon is when there is more demand to fly to Boise, so prices are often more expensive at around $489 per ticket.
How far in advance should I book a flight to Boise?
The ideal time to book your flight to Boise is 54 days in advance when prices tend to average $457. Keep in mind that you might also find cheap flights to Boise outside of this time window. In fact, momondo users recently found flights from St. Louis to Boise for $204.
When to book flights from St. Louis to Boise
Cheap St. Louis to Boise (STL to BOI) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from St. Louis to Boise
How far is Lambert-St Louis to Boise Air Term. Gowen Fld by plane?
Lambert-St Louis and Boise Air Term. Gowen Fld are 1389.5 mi apart from one another. By plane, this route typically takes 5h 13m.
When did momondo last update prices for flights from Lambert-St Louis Airport to Boise Air Term. Gowen Fld Airport?
Prices for flights from Lambert-St Louis Airport to Boise Air Term. Gowen Fld Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Lambert-St Louis Airport to Boise Air Term. Gowen Fld Airport?
As of January 2025, there are 4 operators available to choose from for flights from Lambert-St Louis Airport to Boise Air Term. Gowen Fld Airport.
How old do you have to be to fly from Lambert-St Louis Airport to Boise Air Term. Gowen Fld Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Boise Air Term. Gowen Fld Airport.
What documentation or ID do you need to fly to Boise Air Term. Gowen Fld Airport?
The travel and health documents required for your trip to Boise Air Term. Gowen Fld Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Boise Air Term. Gowen Fld Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from St. Louis to Boise?
Based on momondo bookings for this flight route, the most popular airline on flight routes from St. Louis to Boise is Delta (55% of total bookings). The next most popular airlines are United Airlines (23%), American Airlines (14%), and Southwest (8%).
Best airlines flying from St. Louis to Boise
Compare and see reviews for airlines that fly from St. Louis to Boise with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $296 | Free Cancellation | Rating 7.4 8,974 reviews | |||
| PriceFrom $296 | Free Cancellation | Rating 8.0 8,537 reviews | |||
| PriceFrom $334 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $367 | Free Cancellation | Rating 8.1 4,699 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from St. Louis to Boise?
It is quick and easy to find St. Louis to Boise flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Boise that suits you.
Can I find flights from St. Louis to Boise with flexible booking policies on momondo?
Flights from St. Louis to Boise with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from St. Louis to Boise?
momondo provides multiple filters to help you find the best flight to Boise from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from St. Louis to Boise right now. Can momondo alert me if prices change?
Yes. momondo can track prices for St. Louis to Boise flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.