$147 Cheap flights from Lambert-St. Louis Intl. to Boise (STL to BOI)

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Find The Best Dates To Fly from Lambert-St. Louis Intl. to Boise

Amazing STL to BOI Flight Deals

The cheapest flights to Boise found within the past 7 days were $94 round trip and $147 one way. Prices and availability subject to change. Additional terms may apply.

Wed, May 15 - Tue, May 21
STL
St. Louis
BOI
Boise
$94 Roundtrip, found 1 hour ago
$94
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Wed, May 15 from St. Louis to Boise, returning Tue, May 21, priced at $94 found 1 hour ago
Wed, May 8 - Thu, May 9
STL
St. Louis
BOI
Boise
$155 Roundtrip, found 2 days ago
$155
Roundtrip
found 2 days ago
Select Spirit Airlines flight, departing Wed, May 8 from St. Louis to Boise, returning Thu, May 9, priced at $155 found 2 days ago
Sun, May 26 - Thu, May 30
STL
St. Louis
BOI
Boise
$294 Roundtrip, found 3 days ago
$294
Roundtrip
found 3 days ago
Select Delta flight, departing Sun, May 26 from St. Louis to Boise, returning Thu, May 30, priced at $294 found 3 days ago
Fri, May 31 - Wed, Jun 5
STL
St. Louis
BOI
Boise
$295 Roundtrip, found 2 days ago
$295
Roundtrip
found 2 days ago
Select Delta flight, departing Fri, May 31 from St. Louis to Boise, returning Wed, Jun 5, priced at $295 found 2 days ago
Tue, Jun 4 - Wed, Jun 5
STL
St. Louis
BOI
Boise
$296 Roundtrip, found 2 days ago
$296
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Jun 4 from St. Louis to Boise, returning Wed, Jun 5, priced at $296 found 2 days ago
Wed, Sep 11 - Tue, Sep 17
STL
St. Louis
BOI
Boise
$296 Roundtrip, found 1 day ago
$296
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Wed, Sep 11 from St. Louis to Boise, returning Tue, Sep 17, priced at $296 found 1 day ago
Sat, May 18 - Tue, May 21
STL
St. Louis
BOI
Boise
$298 Roundtrip, found 1 hour ago
$298
Roundtrip
found 1 hour ago
Select Delta flight, departing Sat, May 18 from St. Louis to Boise, returning Tue, May 21, priced at $298 found 1 hour ago
Tue, Jul 16 - Mon, Jul 22
STL
St. Louis
BOI
Boise
$298 Roundtrip, found 3 days ago
$298
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Jul 16 from St. Louis to Boise, returning Mon, Jul 22, priced at $298 found 3 days ago
Wed, Jun 5 - Sat, Jun 8
STL
St. Louis
BOI
Boise
$301 Roundtrip, found 2 days ago
$301
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Jun 5 from St. Louis to Boise, returning Sat, Jun 8, priced at $301 found 2 days ago
Tue, Sep 10 - Wed, Sep 11
STL
St. Louis
BOI
Boise
$304 Roundtrip, found 1 day ago
$304
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Sep 10 from St. Louis to Boise, returning Wed, Sep 11, priced at $304 found 1 day ago

Frequently asked questions

Can I catch a flight from STL to BOI right now?
Make sure you visit the Covid-19 Travel Advisor to see if there are any present travel advice reports and quarantine requirements in place in BOI when flying in from Lambert-St. Louis Intl. Airport (STL).
Are there direct flights from STL to Boise Airport (BOI)?
Alaska Airlines, Southwest Airlines and American Airlines will take you to Boise from St. Louis with one stopover. Unfortunately, there are no direct flights between Lambert-St. Louis Intl. Airport (STL) and Boise Airport as yet.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to BOI, please visit our Customer Service Portal.
How long is the flight from St. Louis Lambert International Airport to Boise Airport (BOI)?
It typically takes about 5 hours and 24 minutes to travel from STL to BOI. You’ll be in the air for a while, so entertain yourself with a television show or read the in-flight magazine.
What is the flight distance from Lambert Field to Boise Airport (BOI)?
With a flight distance of 1,400 mi separating St. Louis Lambert International Airport and BOI, you’ll be in your seat for a while. It’s the perfect chance to watch a movie or two, catch up on work or just relax with a book.
What airlines fly from Lambert Field to Boise Airport?
Currently, no airline flies straight to Boise Airport (BOI) from Lambert-St. Louis Intl. Airport (STL). Heading over there will involve one stopover at least. Lock in your airfare early to walk away with the best connections and price.
What airlines have practices regarding COVID-19 in place and use social distancing?
From the moment you enter the departure terminal to when you leave the arrivals terminal, if you’re flying with Alaska Airlines, Delta or United Airlines you can be sure that COVID-19 measures and social distancing rules have been adhered to. Many airlines have introduced capped capacity flights and keeping the middle seat empty.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

 

Traveling From
Lambert-St. Louis Intl.
Traveling To
Boise
Shortest Flight Time
 hours mins
Earliest Departure Time
Latest Departure Time
Lowest Flight Price
$94

Route Info

Flight path for flights from Lambert-St. Louis International Airport to Boise Air Terminal (Gowen Field).


Origin:
STL - Lambert-St. Louis International Airport
Destination:
BOI - Boise Air Terminal (Gowen Field)
Distance:
1,450.00 miles


Discover our best flights from St. Louis STL to Boise BOI. 

With 20 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times. 

 

Find our best return flights from St. Louis STL to Boise BOI at the right price  

Airfares to Boise BOI from St. Louis STL currently cost between $94 and $304. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way flights from St. Louis STL to Boise BOI 

If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from St. Louis STL to Boise BOI on Travelocity starting at $147. Prices and availability subject to change. Additional terms may apply. 

 

Get to Boise BOI from St. Louis STL quicker with direct flights. 

Get to Boise faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to BOI from STL to take around hour(s) min(s).  

 

Find our cheapest airfares for flights from St. Louis STL to Boise BOI

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to BOI from STL. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.  

 

Get our best airfare deals for your flight from St. Louis STL to Boise BOI today 

If you’re flexible about when you travel, May is usually the cheapest month to fly from St. Louis STL to Boise BOI. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first. 

 

Book flexible airline tickets for flights to Boise BOI from St. Louis STL 

Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to BOI from STL have this option.  

 

Travel with confidence when you book flights to Boise BOI from St. Louis STL with Travelocity 

We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving. 

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.