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Cheap flights from St. Louis to Boise (STL - BOI) from $192

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — BOI
May 9 — May 161
From?
To?
Thu 5/9
Thu 5/16
1 adult, Economy
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The best prices from Lambert-St Louis to Boise Air Term. Gowen Fld are usually found in February or January, booked 15 days in advance, depart on a Wednesday or Saturday and return on a Wednesday

Cheap flight deals from St. Louis to Boise

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Boise (BOI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 4, 2024.

Popular in

December

Cheapest in

February

Average price

$502

Round-trip from

$311
High demand for flights, 19% potential price rise
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Best time to find cheap flights, 20% potential price drop
Search Deals
Average for round-trip flights in May 2024
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From Lambert-St Louis to Boise Air Term. Gowen Fld
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What is the cheapest day to fly round-trip from St. Louis to Boise?

Users have found that flying from St. Louis to Boise on a Sunday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from St. Louis to Boise?

Find a great deal and save up to 227% by booking at least 16 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from St. Louis to Boise within the next two weeks, with the cheapest ticket starting at $355.

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

Flights from St. Louis to Boise lean towards being more expensive in December. Prices are generally better when you fly from St. Louis to Boise in February, with the cheapest ticket starting at $278.

When is the cheapest time to fly from St. Louis to Boise (STL - BOI)?

When flying from St. Louis to Boise, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 12% versus a flight in the afternoon.

Cheap Spirit Airlines flights from St. Louis to Boise

Explore cheap flight options specifically provided by Spirit Airlines for the route between St. Louis and Boise. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,864,334 searches. Data last updated May 4, 2024.
Take a peek at the cheapest Spirit Airlines flights we've detected traveling from St. Louis to Boise. Be sure to come back soon if the deals available don't appeal to you at this time.
Wed 5/1511:36 amSTL - BOI
1 stop9h 20mSpirit Airlines
Wed 5/225:20 pmBOI - STL
3 stops24h 20mSpirit Airlines
Deal found 5/3$192
Fri 5/174:05 pmSTL - BOI
1 stop29h 20mSpirit Airlines
Sun 5/194:20 pmBOI - STL
1 stop21h 54mSpirit Airlines
Deal found 5/3$197
Wed 9/1811:36 amSTL - BOI
1 stop11h 33mSpirit Airlines
Sun 9/229:35 pmBOI - STL
1 stop15h 37mSpirit Airlines
Deal found 5/4$328
Fri 5/174:05 pmSTL - BOI
1 stop24h 59mSpirit Airlines
Mon 5/205:20 pmBOI - STL
3 stops19h 17mSpirit Airlines
Deal found 5/3$408
Sat 6/2211:34 amSTL - BOI
2 stops31h 55mSpirit Airlines
Mon 6/247:19 pmBOI - STL
3 stops18h 04mSpirit Airlines
Deal found 5/3$481
Sat 6/2211:34 amSTL - BOI
3 stops31h 55mSpirit Airlines
Mon 6/249:13 pmBOI - STL
3 stops16h 10mSpirit Airlines
Deal found 5/3$544

Cheap American Airlines flights from St. Louis to Boise

Explore cheap flight options specifically provided by American Airlines for the route between St. Louis and Boise. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,864,334 searches. Data last updated May 4, 2024.
To aid your search, here are some of the cheapest American Airlines flights we've found from St. Louis to Boise. Deals are refreshing constantly so come back soon for more options.
Wed 7/105:30 pmSTL - BOI
1 stop8h 14mAmerican Airlines
Wed 7/175:16 pmBOI - STL
1 stop5h 39mAmerican Airlines
Deal found 5/3$304
Wed 7/105:30 pmSTL - BOI
1 stop8h 14mAmerican Airlines
Tue 7/1612:59 amBOI - STL
1 stop7h 30mAmerican Airlines
Deal found 5/3$331
Wed 7/315:30 pmSTL - BOI
1 stop8h 14mAmerican Airlines
Mon 8/53:44 pmBOI - STL
1 stop6h 08mAmerican Airlines
Deal found 5/3$335
Sat 6/227:00 amSTL - BOI
1 stop8h 43mAmerican Airlines
Mon 6/243:33 pmBOI - STL
1 stop6h 24mAmerican Airlines
Deal found 5/3$366
Wed 7/315:30 pmSTL - BOI
1 stop8h 14mAmerican Airlines
Sun 8/412:59 amBOI - STL
1 stop7h 30mAmerican Airlines
Deal found 5/3$385
Mon 7/87:50 pmSTL - BOI
1 stop5h 54mAmerican Airlines
Thu 7/1112:59 amBOI - STL
1 stop7h 30mAmerican Airlines
Deal found 5/3$416
Wed 7/3112:46 pmSTL - BOI
2 stops11h 43mAmerican Airlines
Mon 8/53:44 pmBOI - STL
1 stop6h 08mAmerican Airlines
Deal found 5/3$608
Wed 7/3112:46 pmSTL - BOI
2 stops11h 43mAmerican Airlines
Sun 8/412:59 amBOI - STL
1 stop7h 30mAmerican Airlines
Deal found 5/3$658
Mon 7/87:00 amSTL - BOI
2 stops10h 35mAmerican Airlines
Thu 7/1112:59 amBOI - STL
1 stop7h 30mAmerican Airlines
Deal found 5/3$746

Cheap St. Louis to Boise flights in May & June 2024

Find cheap flight options from St. Louis to Boise specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,864,334 searches. Prices were last updated on May 4, 2024.
These are some of the best deals we've found on flights to Boise in 2024 at this time. Check back soon for alternative fares.
Wed 5/1511:36 amSTL - BOI
1 stop9h 20mSpirit Airlines
Wed 5/225:20 pmBOI - STL
3 stops24h 20mSpirit Airlines
Deal found 5/3$192
Fri 5/174:05 pmSTL - BOI
1 stop29h 20mSpirit Airlines
Sun 5/194:20 pmBOI - STL
1 stop21h 54mSpirit Airlines
Deal found 5/3$197
Sat 6/227:00 amSTL - BOI
1 stop8h 43mAmerican Airlines
Mon 6/243:33 pmBOI - STL
1 stop6h 24mAmerican Airlines
Deal found 5/3$366
Fri 5/174:05 pmSTL - BOI
1 stop24h 59mSpirit Airlines
Mon 5/205:20 pmBOI - STL
3 stops19h 17mSpirit Airlines
Deal found 5/3$408
Fri 5/178:35 pmSTL - BOI
3 stops24h 50mMultiple Airlines
Mon 5/205:20 pmBOI - STL
3 stops21h 55mMultiple Airlines
Deal found 5/3$431
Fri 5/179:35 amSTL - BOI
3 stops35h 50mMultiple Airlines
Sun 5/194:20 pmBOI - STL
3 stops22h 55mMultiple Airlines
Deal found 5/3$457
Sat 6/2211:34 amSTL - BOI
2 stops31h 55mSpirit Airlines
Mon 6/247:19 pmBOI - STL
3 stops18h 04mSpirit Airlines
Deal found 5/3$481
Fri 5/175:37 pmSTL - BOI
1 stop7h 13mDelta
Mon 5/207:58 amBOI - STL
2 stops8h 47mDelta
Deal found 5/3$484
Fri 5/172:36 pmSTL - BOI
1 stop8h 24mAlaska Airlines
Mon 5/203:23 pmBOI - STL
1 stop7h 36mAlaska Airlines
Deal found 5/3$486

St. Louis to Boise 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Boise in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,864,334 searches. Data last updated May 4, 2024.
These are some of the best deals we've found on flights to Boise in 2024 at this time. Check back soon for alternative fares.
Wed 5/1511:36 amSTL - BOI
1 stop9h 20mSpirit Airlines
Wed 5/225:20 pmBOI - STL
3 stops24h 20mSpirit Airlines
Deal found 5/3$192
Fri 5/174:05 pmSTL - BOI
1 stop29h 20mSpirit Airlines
Sun 5/194:20 pmBOI - STL
1 stop21h 54mSpirit Airlines
Deal found 5/3$197
Mon 7/16:11 pmSTL - BOI
1 stop6h 05mAmerican Airlines
Tue 7/912:59 amBOI - STL
1 stop7h 30mAmerican Airlines
Deal found 5/4$304
Wed 9/1811:36 amSTL - BOI
1 stop11h 33mSpirit Airlines
Sun 9/229:35 pmBOI - STL
1 stop15h 37mSpirit Airlines
Deal found 5/4$328
Wed 7/105:30 pmSTL - BOI
1 stop8h 14mAmerican Airlines
Tue 7/1612:59 amBOI - STL
1 stop7h 30mAmerican Airlines
Deal found 5/3$331
Wed 7/315:30 pmSTL - BOI
1 stop8h 14mAmerican Airlines
Mon 8/53:44 pmBOI - STL
1 stop6h 08mAmerican Airlines
Deal found 5/3$335
Sat 6/227:00 amSTL - BOI
1 stop8h 43mAmerican Airlines
Mon 6/243:33 pmBOI - STL
1 stop6h 24mAmerican Airlines
Deal found 5/3$366
Wed 7/105:59 pmSTL - BOI
1 stop6h 54mDelta
Wed 7/173:10 pmBOI - STL
2 stops8h 29mDelta
Deal found 5/3$373
Wed 7/315:30 pmSTL - BOI
1 stop8h 14mAmerican Airlines
Sun 8/412:59 amBOI - STL
1 stop7h 30mAmerican Airlines
Deal found 5/3$385

St. Louis to Boise flights leaving soon

Find last-minute flight options from St. Louis to Boise for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,864,334 searches. Data last updated May 4, 2024.
Have a look at some of the flights available from St. Louis to Boise departing last-minute. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
Wed 5/1511:36 amSTL - BOI
1 stop9h 20mSpirit Airlines
Wed 5/225:20 pmBOI - STL
3 stops24h 20mSpirit Airlines
Deal found 5/3$192
Fri 5/174:05 pmSTL - BOI
1 stop29h 20mSpirit Airlines
Sun 5/194:20 pmBOI - STL
1 stop21h 54mSpirit Airlines
Deal found 5/3$197
Fri 5/174:05 pmSTL - BOI
1 stop24h 59mSpirit Airlines
Mon 5/205:20 pmBOI - STL
3 stops19h 17mSpirit Airlines
Deal found 5/3$408
Fri 5/178:35 pmSTL - BOI
3 stops24h 50mMultiple Airlines
Mon 5/205:20 pmBOI - STL
3 stops21h 55mMultiple Airlines
Deal found 5/3$431
Fri 5/179:35 amSTL - BOI
3 stops35h 50mMultiple Airlines
Sun 5/194:20 pmBOI - STL
3 stops22h 55mMultiple Airlines
Deal found 5/3$457
Fri 5/175:37 pmSTL - BOI
1 stop7h 13mDelta
Mon 5/207:58 amBOI - STL
2 stops8h 47mDelta
Deal found 5/3$484
Fri 5/172:36 pmSTL - BOI
1 stop8h 24mAlaska Airlines
Mon 5/203:23 pmBOI - STL
1 stop7h 36mAlaska Airlines
Deal found 5/3$486
Wed 5/156:11 amSTL - BOI
1 stop7h 15mDelta
Wed 5/227:05 pmBOI - STL
1 stop4h 41mDelta
Deal found 5/3$522
Fri 5/172:36 pmSTL - BOI
1 stop6h 24mAlaska Airlines
Sun 5/197:35 amBOI - STL
2 stops15h 24mAlaska Airlines
Deal found 5/3$535

Find flights from St. Louis to Boise within your budget

Customize your flight search to find flights from St. Louis to Boise that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,864,334 searches. Data last updated May 4, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$192 - $490

Route

Depart

Return

Price

Lambert-St LouisBoise Air Term. Gowen Fld

STL - BOI

STLBOI

Lambert-St Louis

Wed 5/15

1 stop9h 20m

Boise Air Term. Gowen Fld

Wed 5/22

3 stops24h 20m

$192

Lambert-St LouisBoise Air Term. Gowen Fld

STL - BOI

STLBOI

Lambert-St Louis

Fri 5/17

1 stop29h 20m

Boise Air Term. Gowen Fld

Sun 5/19

1 stop21h 54m

$197

Lambert-St LouisBoise Air Term. Gowen Fld

STL - BOI

STLBOI

Lambert-St Louis

Wed 7/10

1 stop8h 14m

Boise Air Term. Gowen Fld

Wed 7/17

1 stop5h 39m

$304

Lambert-St LouisBoise Air Term. Gowen Fld

STL - BOI

STLBOI

Lambert-St Louis

Wed 9/18

1 stop11h 33m

Boise Air Term. Gowen Fld

Sun 9/22

1 stop15h 37m

$328

Lambert-St LouisBoise Air Term. Gowen Fld

STL - BOI

STLBOI

Lambert-St Louis

Wed 7/10

1 stop8h 14m

Boise Air Term. Gowen Fld

Tue 7/16

1 stop7h 30m

$331

Lambert-St LouisBoise Air Term. Gowen Fld

STL - BOI

STLBOI

Lambert-St Louis

Wed 7/10

1 stop6h 54m

Boise Air Term. Gowen Fld

Wed 7/17

2 stops8h 29m

$373

Lambert-St LouisBoise Air Term. Gowen Fld

STL - BOI

STLBOI

Lambert-St Louis

Fri 5/17

3 stops24h 50m

Boise Air Term. Gowen Fld

Mon 5/20

3 stops21h 55m

$431

Lambert-St LouisBoise Air Term. Gowen Fld

STL - BOI

STLBOI

Lambert-St Louis

Fri 5/17

1 stop8h 24m

Boise Air Term. Gowen Fld

Mon 5/20

1 stop7h 36m

$486

Lambert-St LouisBoise Air Term. Gowen Fld

STL - BOI

STLBOI

Lambert-St Louis

Sat 6/22

2 stops15h 07m

Boise Air Term. Gowen Fld

Mon 6/24

2 stops21h 06m

$490

Flights are sorted by cheapest first

Deals found on 5/3

When is the best time to book a flight from St. Louis to Boise?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Boise. Price data was last updated on January 28, 2024.
The price you pay for your flight from St. Louis to Boise may vary depending on when you book. For the best chance of a lower fare, look to book 15 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Search Deals

When is the cheapest time to fly from St. Louis to Boise?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Boise. Price data was last updated on April 28, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Boise flight should consider departing on Wednesday mornings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Boise by month

Plan your trip from St. Louis to Boise by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to Boise is currently $0 while a round-trip flight costs $348. Price data was last updated on April 28, 2024.

Currently, December is the cheapest month in which you can book a flight from St. Louis to Boise (average of $311). Flying from St. Louis to Boise in June is currently the most expensive (average of $437). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$316

February

$337

March

$393

April

$358

May

$407

June

$437

July

$437

August

$382

September

$366

October

$356

November

$316

December

$311

Temperature and rainfall in Boise by month

Plan your trip to Boise by taking into account the average temperature and rainfall totals by month.

BOI

Temperature

30.2 - 75.2 °F

Reviews of airlines servicing Boise

Get insights into the airlines that provide service to Boise. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boise. Reviews last updated May 4, 2024.
See what other customers who have flown with Spirit Airlines, American Airlines and Delta from St. Louis to Boise have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,137 reviews
Check prices

Overall

8.1

Boarding

8.2

Comfort

7.9

Crew

8.6

Food

7.3

Entertainment

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Alaska Airlines
8.1
Very good
9,137 reviews
Alaska Airlines
8.1
Very good
9,137 reviews
Check prices

Overall

8.1

Boarding

8.2

Comfort

7.9

Crew

8.6

Food

7.3

Entertainment

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Delta
8.1
Very good
10,838 reviews
Alaska Airlines
8.1
Very good
9,137 reviews
Check prices

Overall

8.1

Boarding

8.2

Comfort

7.9

Crew

8.6

Food

7.3

Entertainment

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

United Airlines
7.4
Good
11,125 reviews
Alaska Airlines
8.1
Very good
9,137 reviews
Check prices

Overall

8.1

Boarding

8.2

Comfort

7.9

Crew

8.6

Food

7.3

Entertainment

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

American Airlines
7.3
Good
14,728 reviews
Alaska Airlines
8.1
Very good
9,137 reviews
Check prices

Overall

8.1

Boarding

8.2

Comfort

7.9

Crew

8.6

Food

7.3

Entertainment

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Spirit Airlines
6.4
Okay
8,728 reviews
Alaska Airlines
8.1
Very good
9,137 reviews
Check prices

Overall

8.1

Boarding

8.2

Comfort

7.9

Crew

8.6

Food

7.3

Entertainment

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Boise. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from St. Louis to Boise for under $200 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Boise for under $200. The cheapest flight booked recently is on Spirit Airlines for just $192, but on average you can expect to pay $387.

  • Are there last-minute flights available from St. Louis to Boise for under $200?

    There are currently 17+ open flights from St. Louis to Boise within the next 7 days for less than $200.

  • What are the cheapest airlines flying from St. Louis to Boise round-trip?

    According to our current data, Spirit Airlines ($192), American Airlines ($304), and Delta ($373) offers the cheapest pricing from St. Louis to Boise. Spirit Airlines is priced at 58% lower than the current average price of a flight leaving 3 months from now.

  • What are the most popular airlines that fly from St. Louis to Boise?

    Before booking your flight from St. Louis to Boise check out the most popular airlines for this route: American Airlines, Alaska Airlines or Delta.

  • What does STL to BOI mean?

    Great question - STL to BOI just means Lambert-St Louis Airport to Boise Air Term. Gowen Fld Airport. Now you’ll know what these unique codes when you look for flights!

  • Can I find deals for flights from St. Louis to Boise that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Boise flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Boise with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Boise flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from St. Louis to Boise that include hotel bookings?

    Yes. In addition to deals on St. Louis to Boise flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Boise?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Boise.

  • Can I find deals for business class flights from St. Louis to Boise?

    Yes. Cheapflights offers flight deals from St. Louis to Boise by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from St. Louis to Boise that allow pets onboard?

    Many airlines flying from St. Louis to Boise offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Boise?

    Yes, you can often find last-minute deals on St. Louis to Boise flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Boise flight deals updated?

    The St. Louis to Boise flight deals you see on this page were last updated on 5/4.

See more FAQs

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Alternative routes for St. Louis to Boise
See prices for flight routes from nearby airports that may be better suited for you.

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Top 5 airlines flying from St. Louis to Boise

Discover the top 5 airlines that operate flights from St. Louis to Boise. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,864,334 searches. Data last updated May 4, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$197Average$254FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
DeltaCheapest$296Average$466FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Alaska AirlinesCheapest$304Average$388FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
American AirlinesCheapest$305Average$560FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$316Average$513FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
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Search flights from St. Louis to Boise by cabin class

Find flights from St. Louis to Boise, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Economy Class

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to Boise?

Deals for St. Louis to Boise flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Boise?

Cheapflights simply makes it quick and affordable to book flights from St. Louis to Boise by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from St. Louis to Boise with no change fees?

Need flexible booking options for your flight to Boise from St. Louis? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from St. Louis to Boise become cheaper?

Of course! You can now track prices for flights from St. Louis to Boise and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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