Search & Compare - Boise to St Louis Flights & Tickets

Lowest Prices
Uncover the best deals on BOI to STL flights by comparing fares from hundreds of airlines and agencies.
New Deals Everyday
Get the best prices on BOI to STL flights—we update our fares daily so you never miss a saving.
Best Travel Options
Compare hundreds of BOI to STL flights and secure the best deals—we never add any service fees.

Find Cheap Flights from Boise to St Louis BOI STL

Looking for a cheap last-minute deal or the best round-trip flight from Boise to St Louis? Find the biggest savings on one-way and round-trip tickets right here.

Good to know

Useful information for finding cheap flights from Boise Air Terminal/Gowen field to Lambert St Louis International and booking your next trip

Cheapest Round Trip Flight

$397

WN Southwest Airlines • 1 stop • 8h 40m

Jul 03 – Jul 09

The cheapest round trip flight from Boise Air Terminal/Gowen field to Lambert St Louis International is currently $397

🔍 Search Flights

Cheapest One way Flight

$87

WN Southwest Airlines • 2 stops • 20h 40m

Jul 03

The cheapest one way flight from Boise Air Terminal/Gowen field to Lambert St Louis International is currently $87

🔍 Search Flights

Fastest Flight

6h 45m

The fastest nonstop flight from Boise Air Terminal/Gowen field to Lambert St Louis International takes 6h 45m

Recent airfare deals on Boise to St Louis

Jul 03 - Jul 09, Economy
WN
Boise → St Louis
8h 40m
2:50 PM - 9:10 PM • 1 stop
WN
Boise → St Louis
8h 25m
5:30 AM - 9:35 AM • 1 stop
$397
Southwest Airlines
Jul 03 - Jul 09, Economy
UA
Boise → St Louis
13h 47m
2:32 PM - 11:59 PM • 1 stop
UA
Boise → St Louis
8h 45m
1:42 PM - 6:07 PM • 1 stop
$463
United Airlines
Jul 03 - Jul 09, Economy
WN
Boise → St Louis
31h 55m
2:50 PM - 11:05 AM • 1 stop
WN
Boise → St Louis
8h 25m
5:30 AM - 9:35 AM • 1 stop
$535
Southwest Airlines
Jul 03 - Jul 09, Economy
UA
Boise → St Louis
21h 55m
2:39 PM - 4:54 AM • 1 stop
UA
Boise → St Louis
16h 53m
8:54 AM - 6:07 PM • 1 stop
$550
United Airlines
Jul 03 - Jul 09, Economy
WN
Boise → St Louis
28h 55m
2:50 PM - 9:25 AM • 1 stop
WN
Boise → St Louis
16h 40m
9:30 AM - 6:30 PM • 1 stop
$577
Southwest Airlines
Jul 03 - Jul 09, Economy
UA
Boise → St Louis
6h 45m
2:32 PM - 9:50 PM • 1 stop
UA
Boise → St Louis
13h 42m
6:33 AM - 3:57 PM • 2 stops
$604
United Airlines

Facts to know while booking flights from Boise to St Louis

What are the airports in Boise?
BOI
What’s the most popular airline flying from BOI to STL?
The most popular airline flying from Boise to St Louis are
Can I fly from BOI to STL non-stop?
NO
Which airlines fly nonstop between Boise and St Louis?
The non-stop flights between Boise and St Louis are .
What’s the earliest departure time from BOI to STL Airport?
The earliest flight leaves BOI at 12:15 pm and lands in STL - Lambert St Louis International
What are the airports in St Louis?
STL
Can I make changes to my Boise to St Louis flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from BOI to STL?
Read the fare rules of the Boise to St Louis air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Boise and St Louis?
operate flights between Boise and St Louis
How long does a flight from Boise to St Louis take?
It takes approximately 3 hour to fly non-stop from BOI to STL, which is 1382.58 miles by air.
Which airlines provide the cheapest flights from Boise (BOI) to St Louis (STL) ?
In the past couple of days, the cheapest tickets to STL from BOI were found on ('WN') : USD 87
Do I need a passport to fly between BOI and STL?
No
What’s the latest departure time from BOI to STL ?
The last flight leaves BOI at 2:50 pm

Essential Information for Booking Flights from Boise (BOI) - AI Insights

What's the cheapest airline from boi to stl?
United Airlines (UA) offers the most affordable flights from Boise Air Terminal/Gowen field to Lambert St Louis International Airport, with fares typically under $500 for a one-way economy ticket.
What's the popular airline to fly from boi to stl?
Delta Airlines (DL) offers popular routes from Boise Air Terminal/Gowen field to Lambert St Louis International Airport, a popular choice for travelers.
What's the cheapest day of the week to fly from boi to stl?
Friday is the cheapest day to fly from Boise to St. Louis.
What's the cheapest month to fly from boi to stl?
April is the cheapest month to fly from Boise to St. Louis.
What is the cheapest airline to fly from Boise Air Terminal/Gowen field to Lambert St Louis International Airport?
United Airlines (UA) typically offers the most affordable fares from Boise Air Terminal/Gowen field to Lambert St Louis International Airport.
When is it generally cheaper to fly with Delta Airlines?
Delta Airlines (DL) frequently has promotional fares during the week, particularly on Fridays, offering significant savings on flights from Boise Air Terminal/Gowen field to Lambert St Louis International Airport.
What month offers the lowest airfare for a round trip flight from Boise Air Terminal/Gowen field to Lambert St Louis International?
April is generally considered the best month to find the lowest airfare for a round trip flight from Boise Air Terminal/Gowen field to Lambert St Louis International Airport.

Flights from Boise to St Louis

Origin Airport Boise Air Terminal/Gowen field, Boise, US
Destination Airport Lambert St Louis International , St Louis, US
Distance miles

Popular Airlines

Southwest Airlines-WN
Delta Airline, DL
United Airlines, UA
American Airlines, AA
Hawaiian Airlines-HA
Alaska Airlines -AS

Popular Origin & Destination

Get Fare Drop Alert
Be the first to know when fares drop for the Boise (BOI) to St Louis (STL)
Terms and Conditions*