$112 Cheap flights from Boise to Lambert-St. Louis Intl. (BOI to STL)

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

Compare Flight Prices from Boise to St. Louis

Affordable Airfare Tickets from BOI to STL Airport

The cheapest flights to Lambert-St. Louis Intl. found within the past 7 days were $188 round trip and $112 one way. Prices and availability subject to change. Additional terms may apply.

Tue, May 20 - Sat, May 24
BOI
Boise
STL
St. Louis
$188 Roundtrip, found 4 days ago
$188
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Tue, May 20 from Boise to St. Louis, returning Sat, May 24, priced at $188 found 4 days ago
Thu, May 15 - Sat, May 24
BOI
Boise
STL
St. Louis
$201 Roundtrip, found 4 days ago
$201
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Thu, May 15 from Boise to St. Louis, returning Sat, May 24, priced at $201 found 4 days ago
Tue, May 20 - Wed, May 21
BOI
Boise
STL
St. Louis
$208 Roundtrip, found 4 days ago
$208
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Tue, May 20 from Boise to St. Louis, returning Wed, May 21, priced at $208 found 4 days ago
Thu, May 15 - Wed, May 21
BOI
Boise
STL
St. Louis
$222 Roundtrip, found 4 days ago
$222
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Thu, May 15 from Boise to St. Louis, returning Wed, May 21, priced at $222 found 4 days ago
Thu, May 15 - Mon, May 19
BOI
Boise
STL
St. Louis
$232 Roundtrip, found 4 days ago
$232
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Thu, May 15 from Boise to St. Louis, returning Mon, May 19, priced at $232 found 4 days ago
Thu, Sep 4 - Wed, Sep 10
BOI
Boise
STL
St. Louis
$287 Roundtrip, found 2 days ago
$287
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, Sep 4 from Boise to St. Louis, returning Wed, Sep 10, priced at $287 found 2 days ago
Sun, Sep 7 - Thu, Sep 11
BOI
Boise
STL
St. Louis
$287 Roundtrip, found 2 days ago
$287
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sun, Sep 7 from Boise to St. Louis, returning Thu, Sep 11, priced at $287 found 2 days ago
Wed, May 14 - Tue, May 20
BOI
Boise
STL
St. Louis
$291 Roundtrip, found 5 days ago
$291
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, May 14 from Boise to St. Louis, returning Tue, May 20, priced at $291 found 5 days ago
Mon, Aug 4 - Fri, Aug 8
BOI
Boise
STL
St. Louis
$292 Roundtrip, found 5 days ago
$292
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Mon, Aug 4 from Boise to St. Louis, returning Fri, Aug 8, priced at $292 found 5 days ago
Thu, May 15 - Mon, May 26
BOI
Boise
STL
St. Louis
$295 Roundtrip, found 6 days ago
$295
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Thu, May 15 from Boise to St. Louis, returning Mon, May 26, priced at $295 found 6 days ago

Frequently asked questions

Can I catch a flight from Boise Airport to St. Louis Lambert International Airport right now?
Be sure to visit the Covid-19 Travel Advisor to learn if there are any current quarantine requirements and travel advice reports in place in Lambert Field when jet-setting from BOI.
Are there direct flights from Boise Airport to Lambert-St. Louis Intl. Airport (STL)?
You can’t fly direct from BOI to STL, but there’s no need to stress. Alaska Airlines, Southwest Airlines and American Airlines advertise flights with only one stopover.
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 Lambert-St. Louis Intl. Airport (STL), please visit our Customer Service Portal.
How long is the flight from Boise Airport to STL?
If you’re flying from Boise to St. Louis, you can expect the journey to take approximately 4 hours and 56 minutes. If this sounds longer than you would have liked, why not take advantage of it? Read up on your destination, work on your itinerary and get as much sleep as possible before the adventure starts.
What is the flight distance from BOI to St. Louis Lambert International Airport?
There’s a flight distance of 1,400 mi between BOI and STL. This is classified as a medium-haul flight. You’ll have plenty of time to take advantage of the in-flight entertainment and squeeze in some sleep if you’re feeling tired.
What airlines fly from Boise Airport (BOI) to STL?
Currently, no single airline flies direct to Lambert Field from Boise Airport (BOI). Heading over there involves at least one stopover. Book your airfare early to walk away with the best price and connections.
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 Southwest Airlines, American Airlines or Delta 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.

Flight information from Boise to St. Louis

 

Traveling From
Boise
Traveling To
Lambert-St. Louis Intl.
Shortest Flight Time
 hours mins
Earliest Departure Time
Latest Departure Time
Lowest Flight Price
$188

Route Info

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


Origin:
BOI - Boise Air Terminal (Gowen Field)
Destination:
STL - Lambert-St. Louis International Airport
Distance:
1,700.00 miles


Airlines & Aircraft Used on BOI to STL Flight Routes


Airline Carrier
Aircraft
United Airlines
Boeing 737 all pax models

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

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 Boise BOI to St. Louis STL at the right price  

Airfares to St. Louis STL from Boise BOI currently cost between $188 and $295. 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 Boise BOI to St. Louis STL 

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 Boise BOI to St. Louis STL on Travelocity starting at $112. Prices and availability subject to change. Additional terms may apply. 

 

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

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

 

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

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to STL from BOI. 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 Boise BOI to St. Louis STL today 

If you’re flexible about when you travel, May is usually the cheapest month to fly from Boise BOI to St. Louis STL. 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 St. Louis STL from Boise BOI 

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

 

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