Which airports can I use when flying from Boise to St. Louis?

Flights from Boise to St. Louis usually depart from Boise Air Term. Gowen Fld (BOI) and arrive at Lambert-St Louis (STL).

What cabin classes can I book on flights from Boise to St. Louis?

Two cabin classes are available on flights from Boise to St. Louis: • Economy Class • First Class

Which airports do connecting flights from Boise to St. Louis pass through?

One-stop flights from Boise to St. Louis most commonly connect through: • Denver Intl (DEN) - 49% of one-stop connections • Salt Lake City (SLC) - 20% of one-stop connections • Minneapolis St Paul (MSP) - 7% of one-stop connections • Phoenix Sky Harbor Intl (PHX) - 7% of one-stop connections Denver Intl (DEN) handles the largest share of one-stop connections on this route.

Can I save money by using flexible dates for flights from Boise to St. Louis?

On the Boise to St. Louis route, being flexible with your departure day can save you up to 50%. Saturday is the cheapest day at $413 round-trip on average, while Sunday is the most expensive at $811: a $398 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

What popular places can I visit in St. Louis?

Some of the most popular sights in St. Louis are Busch Stadium, Enterprise Center and America's Center Convention Complex. These are among the most viewed places in St. Louis on KAYAK.

How long is a flight from Boise to St. Louis?

A nonstop flight from Boise to St. Louis takes 0h 00m, covering 1,378 miles.

Do I need a passport to fly from Boise to St. Louis?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Have flight prices from Boise to St. Louis changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $264 to $2,188. That means the highest observed fare was about 8x higher than the lowest one.

How are flight prices from Boise to St. Louis looking right now?

One-way fares from Boise to St. Louis are currently lower than usual. Average one-way flight prices are about $190, which is 15% below the typical average for this route.

How much time can I save by choosing a different layover airport from Boise to St. Louis?

Flying via Salt Lake City (SLC) gives the shortest average 1-stop total travel time at 5h 46m, compared with 5h 48m via Denver Intl (DEN) and 5h 49m via Minneapolis St Paul (MSP).

What is the time difference between Boise and St. Louis?

St. Louis is 1 hour ahead of Boise (Central Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Lambert-St Louis Airport (STL)?

Lambert-St Louis Airport (STL) hosts 5 major car rental companies, with daily rates starting from around $31 for economy cars. Top options include: • Hertz • Budget • Alamo • Enterprise Rent-A-Car • Payless

How much should I expect to pay for a Boise to St. Louis flight?

Round-trip flights from Boise to St. Louis range from $420 to $558, with an average of $474 over the past 12 months. Anything below $420 counts as a good deal.

What is the cheapest airline to fly from Boise to St. Louis?

Southwest ($264) and American Airlines ($269) are the cheapest airlines to fly round-trip from Boise to St. Louis according to KAYAK data over the last 5 days.

What is the most popular layover airport when flying from Boise to St. Louis?

Denver Intl (DEN) is the most popular layover for the Boise to St. Louis route. 49% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via DEN.

What is the cheapest layover airport when flying from Boise to St. Louis?

Flights via Chicago O'Hare Intl (ORD) offer the most affordable fares, with an average round-trip price of $372. Based on KAYAK data over the past 3 months.

When flying from Boise to St. Louis which airport offers the shortest layover?

Salt Lake City (SLC) had the shortest average connection time for Boise to St. Louis layovers at 212 minutes over the past 3 months.

$135 CHEAP FLIGHTS from Boise to St. Louis (BOI - STL)

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Cheapest round-trip

$264

Typical prices: $420-$558

Southwest

Sat 11/3Sat 11/10

BOI - STL • 1 stop

Cheapest one-way

$135

Typical prices: $154-$288

Delta

Wed 10/24

BOI - STL • 1 stop

Nonstop flights

Not available

There are currently no direct flights between Boise and St. Louis. You'll need to take a connecting flight to reach the destination.

Insights

When to travel

October

Cheapest • 15% price drop

June

Most popular

Good to know

Top layover airports

Chicago O'Hare Intl (ORD)

Cheapest • Avg $372 (round-trip)

Salt Lake City (SLC)

Shortest trip • 5h 46m (one-way)

Insights

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Flight Deals

Cheap Flights from Boise to St. Louis (BOI-STL)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Boise to St. Louis

Tue, Nov 3 - Tue, Nov 10

5:45 am - 12:30 pmBOI Boise Air Term. Gowen Fld-STL Lambert-St Louis

5h 45m1 stop Phoenix Sky Harbor Intl

2:05 pm - 9:40 pmSTL Lambert-St Louis-BOI Boise Air Term. Gowen Fld

8h 35m1 stop Phoenix Sky Harbor Intl

$264Southwest

Wed, Oct 21 - Wed, Nov 11

2:41 pm - 11:42 pmBOI Boise Air Term. Gowen Fld-STL Lambert-St Louis

8h 01m1 stop Dallas/Fort Worth

6:00 am - 1:51 pmSTL Lambert-St Louis-BOI Boise Air Term. Gowen Fld

8h 51m1 stop Dallas/Fort Worth

$269American Airlines

Tue, Nov 3 - Tue, Nov 10

5:45 am - 12:30 pmBOI Boise Air Term. Gowen Fld-STL Lambert-St Louis

5h 45m1 stop Phoenix Sky Harbor Intl

8:25 am - 3:50 pmSTL Lambert-St Louis-BOI Boise Air Term. Gowen Fld

8h 25m2 stops Dallas Love Field Phoenix Sky Harbor Intl

$270Southwest

Wed, Oct 21 - Wed, Nov 11

2:02 pm - 11:42 pmBOI Boise Air Term. Gowen Fld-STL Lambert-St Louis

8h 40m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth

7:26 am - 12:37 pmSTL Lambert-St Louis-BOI Boise Air Term. Gowen Fld

6h 11m1 stop Chicago O'Hare Intl

$274American Airlines

Wed, Oct 28 - Thu, Oct 29

4:18 pm - 11:59 pmBOI Boise Air Term. Gowen Fld-STL Lambert-St Louis

6h 41m1 stop Seattle/Tacoma Intl

7:02 am - 3:23 pmSTL Lambert-St Louis-BOI Boise Air Term. Gowen Fld

9h 21m1 stop Seattle/Tacoma Intl

$288Alaska Airlines

Thu, Oct 29 - Fri, Oct 30

5:00 am - 3:43 pmBOI Boise Air Term. Gowen Fld-STL Lambert-St Louis

9h 43m2 stops Denver Intl Chicago O'Hare Intl

1:40 pm - 6:03 pmSTL Lambert-St Louis-BOI Boise Air Term. Gowen Fld

5h 23m1 stop Denver Intl

$348United Airlines

Wed, Oct 28 - Thu, Oct 29

5:00 am - 3:43 pmBOI Boise Air Term. Gowen Fld-STL Lambert-St Louis

9h 43m2 stops Denver Intl Chicago O'Hare Intl

1:40 pm - 6:03 pmSTL Lambert-St Louis-BOI Boise Air Term. Gowen Fld

5h 23m1 stop Denver Intl

$383United Airlines

Wed, Oct 28 - Thu, Oct 29

8:22 pm - 9:20 amBOI Boise Air Term. Gowen Fld-STL Lambert-St Louis

11h 58m2 stops Seattle/Tacoma Intl Dallas/Fort Worth

12:46 pm - 11:59 pmSTL Lambert-St Louis-BOI Boise Air Term. Gowen Fld

12h 13m2 stops Dallas/Fort Worth Seattle/Tacoma Intl

$393Alaska Airlines

Sat, Dec 5 - Thu, Dec 10

8:59 am - 11:26 pmBOI Boise Air Term. Gowen Fld-STL Lambert-St Louis

13h 27m2 stops Seattle/Tacoma Intl Minneapolis St Paul

2:28 pm - 10:24 pmSTL Lambert-St Louis-BOI Boise Air Term. Gowen Fld

8h 56m2 stops Salt Lake City Seattle/Tacoma Intl

$438Delta

Fri, Oct 16 - Mon, Oct 19

12:08 pm - 11:21 pmBOI Boise Air Term. Gowen Fld-STL Lambert-St Louis

10h 13m2 stops Seattle/Tacoma Intl Minneapolis St Paul

2:22 pm - 11:59 pmSTL Lambert-St Louis-BOI Boise Air Term. Gowen Fld

10h 37m2 stops Salt Lake City Seattle/Tacoma Intl

$453Delta

Booking Insights

Price, demand and travel trends for Boise to St. Louis flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Boise to St. Louis with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Boise to St. Louis?

Round-trip flights from Boise to St. Louis start at $264. Prices are below average for this route right now, with typical round-trip fares ranging from $420 to $558. The lowest price found in the past 5 days was $264 on Southwest.

What's the cheapest day of the week to fly from Boise to St. Louis?

Saturday is the cheapest day of the week to fly from Boise to St. Louis, it is 13% cheaper than the average day. Sunday is the most expensive day with flight prices 71% higher than average. Based on deals found by KAYAK users in the last 12 months.

Find deals

Low season	February
High season	June
Cheapest flight	$135

Most popular time to fly with an average 17% increase in price.

Flight from Boise to St. Louis

When to book flights from Boise to St. Louis

Are your dates flexible? Find out the best times to travel from Boise to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Which airports can I use when flying from Boise to St. Louis?
Flights from Boise to St. Louis usually depart from Boise Air Term. Gowen Fld (BOI) and arrive at Lambert-St Louis (STL).
What cabin classes can I book on flights from Boise to St. Louis?
Two cabin classes are available on flights from Boise to St. Louis:

• Economy Class
• First Class
Which airports do connecting flights from Boise to St. Louis pass through?
One-stop flights from Boise to St. Louis most commonly connect through:

• Denver Intl (DEN) - 49% of one-stop connections
• Salt Lake City (SLC) - 20% of one-stop connections
• Minneapolis St Paul (MSP) - 7% of one-stop connections
• Phoenix Sky Harbor Intl (PHX) - 7% of one-stop connections

Denver Intl (DEN) handles the largest share of one-stop connections on this route.
Can I save money by using flexible dates for flights from Boise to St. Louis?
On the Boise to St. Louis route, being flexible with your departure day can save you up to 50%. Saturday is the cheapest day at $413 round-trip on average, while Sunday is the most expensive at $811: a $398 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.
What popular places can I visit in St. Louis?
Some of the most popular sights in St. Louis are Busch Stadium, Enterprise Center and America's Center Convention Complex. These are among the most viewed places in St. Louis on KAYAK.
How long is a flight from Boise to St. Louis?
A nonstop flight from Boise to St. Louis takes 0h 00m, covering 1,378 miles.
Do I need a passport to fly from Boise to St. Louis?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.
Have flight prices from Boise to St. Louis changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $264 to $2,188. That means the highest observed fare was about 8x higher than the lowest one.
How are flight prices from Boise to St. Louis looking right now?
One-way fares from Boise to St. Louis are currently lower than usual. Average one-way flight prices are about $190, which is 15% below the typical average for this route.
How much time can I save by choosing a different layover airport from Boise to St. Louis?
Flying via Salt Lake City (SLC) gives the shortest average 1-stop total travel time at 5h 46m, compared with 5h 48m via Denver Intl (DEN) and 5h 49m via Minneapolis St Paul (MSP).
What is the time difference between Boise and St. Louis?
St. Louis is 1 hour ahead of Boise (Central Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.
What car rental options are available at Lambert-St Louis Airport (STL)?
Lambert-St Louis Airport (STL) hosts 5 major car rental companies, with daily rates starting from around $31 for economy cars. Top options include:
• Hertz
• Budget
• Alamo
• Enterprise Rent-A-Car
• Payless
How much should I expect to pay for a Boise to St. Louis flight?
Round-trip flights from Boise to St. Louis range from $420 to $558, with an average of $474 over the past 12 months. Anything below $420 counts as a good deal.

If your dates can be flexible, aim for a Saturday departure instead of Sunday. On this route, Saturday flights average $413 - about $398 less than Sunday (49% savings) based on the last 12 months.
If you can choose when to travel, plan your Boise to St. Louis trip for October. Fares historically average $401 round-trip in that month - typically $208 less than the most expensive month, which is March (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to Lambert-St Louis Airport.
- Drury Inn & Suites St. Louis Airport
- Renaissance St. Louis Airport Hotel
- DoubleTree by Hilton St. Louis Airport

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BOI - STL

$135 Find Cheap Flights from Boise to St. Louis - Compare and Save

Everything you should know

Cheap Flights from Boise to St. Louis (BOI-STL)

Recent round-trip flight deals from Boise to St. Louis

Recent one-way flight deals from Boise to St. Louis

Recent last minute flight deals from Boise to St. Louis

Price, demand and travel trends for Boise to St. Louis flights

How much is a round-trip flight from Boise to St. Louis?

What's the cheapest day of the week to fly from Boise to St. Louis?

What is the cheapest airline to fly from Boise to St. Louis?

What is the most popular layover airport when flying from Boise to St. Louis?

What is the cheapest layover airport when flying from Boise to St. Louis?

When flying from Boise to St. Louis which airport offers the shortest layover?

Key details for Boise to St. Louis flights

Low season

High season

Cheapest flight

When to book flights from Boise to St. Louis

Your Boise to St. Louis flight questions, answered

Your guide to booking Boise to St. Louis flights

More options for your flight from Boise to St. Louis

Complete your trip to St. Louis with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Boise to St. Louis

Find direct flights to and from Boise and St. Louis

Flights from domestic origins to St. Louis

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