$228+ Cheap flights from Boise to St. Louis (BOI - STL)

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 8/14. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — STL
Jul 22 — Jul 291

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The best prices from Boise Air Term. Gowen Fld to Lambert-St Louis are usually found in February or December, booked 58 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Boise to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to St. Louis (STL). 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 July 17, 2024.

Popular in

March

Cheapest in

February

Average price

$558

Round-trip from

$228
(American Airlines)
High demand for flights, 19% potential price rise
Best time to find cheap flights, 25% potential price drop
Average for round-trip flights in July 2024
From Boise Air Term. Gowen Fld to Lambert-St Louis

What is the cheapest day to fly round-trip from Boise to St. Louis?

Departing on a Monday is a good option for securing a great price. You can expect to save up to 67% when planning your travel around this day of the week.

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

Users have found that booking a flight from Boise to St. Louis at least 59 days early can save you up to 38% on average compared to booking a flight this week. If booking 59 days before your flight isn’t an option for you, users have found flights from Boise to St. Louis for as little as $289 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $803 for flights departing within the next 3 days.

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

Flights from Boise to St. Louis lean towards being more expensive in March. Prices are generally better when you fly from Boise to St. Louis in February, with the cheapest ticket starting at $323.

What is the cheapest time of day to fly from BOI to STL?

When flying from Boise to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 17% versus a flight at noon.

Cheap Boise to St. Louis flights in July & August 2024

Find cheap flight options from Boise to St. Louis specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,731,402 searches. Prices were last updated on July 17, 2024.
Listed are some of the best fares we've found on flights departing from Boise to St. Louis in 2024. For more flight deals, be sure to check back very soon.
This American Airlines deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/146:40 amBOI - STL
1 stop9h 47mAmerican Airlines
Thu 8/154:18 pmSTL - BOI
1 stop6h 13mAmerican Airlines
Deal found 7/16$228
This Alaska Airlines deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/223:19 pmBOI - STL
1 stop7h 40mAlaska Airlines
Mon 8/267:00 amSTL - BOI
1 stop8h 24mAlaska Airlines
Deal found 7/17$236
This CheapOair deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/229:14 pmBOI - STL
1 stop14h 44mSpirit Airlines
Mon 8/261:48 pmSTL - BOI
1 stop7h 36mSpirit Airlines
Deal found 7/16$246
This KAYAK deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/18:04 pmBOI - STL
1 stop18h 02mSpirit Airlines
Mon 8/54:02 pmSTL - BOI
1 stop26h 28mSpirit Airlines
Deal found 7/16$250
This JustFly deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JustFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/236:20 pmBOI - STL
1 stop19h 46mSpirit Airlines
Mon 7/294:02 pmSTL - BOI
1 stop21h 11mSpirit Airlines
Deal found 7/16$295
This Delta deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/145:47 amBOI - STL
1 stop6h 53mDelta
Thu 8/152:35 pmSTL - BOI
2 stops10h 17mDelta
Deal found 7/16$300
This Alaska Airlines deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/225:45 amBOI - STL
1 stop6h 40mAlaska Airlines
Mon 8/267:31 pmSTL - BOI
2 stops14h 42mAlaska Airlines
Deal found 7/17$304
This KAYAK deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/31:03 pmBOI - STL
3 stops27h 26mSpirit Airlines
Wed 8/74:02 pmSTL - BOI
1 stop28h 12mSpirit Airlines
Deal found 7/16$316
This Delta deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/226:00 amBOI - STL
2 stops10h 34mDelta
Mon 8/266:30 pmSTL - BOI
1 stop6h 45mDelta
Deal found 7/16$324

Boise to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Boise and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,731,402 searches. Data last updated July 17, 2024.
Listed are some of the best fares we've found on flights departing from Boise to St. Louis in 2024. For more flight deals, be sure to check back very soon.
This American Airlines deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/146:40 amBOI - STL
1 stop9h 47mAmerican Airlines
Thu 8/154:18 pmSTL - BOI
1 stop6h 13mAmerican Airlines
Deal found 7/16$228
This Alaska Airlines deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/223:19 pmBOI - STL
1 stop7h 40mAlaska Airlines
Mon 8/267:00 amSTL - BOI
1 stop8h 24mAlaska Airlines
Deal found 7/17$236
This CheapOair deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/229:14 pmBOI - STL
1 stop14h 44mSpirit Airlines
Mon 8/261:48 pmSTL - BOI
1 stop7h 36mSpirit Airlines
Deal found 7/16$246
This KAYAK deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/18:04 pmBOI - STL
1 stop18h 02mSpirit Airlines
Mon 8/54:02 pmSTL - BOI
1 stop26h 28mSpirit Airlines
Deal found 7/16$250
This JustFly deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JustFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/236:20 pmBOI - STL
1 stop19h 46mSpirit Airlines
Mon 7/294:02 pmSTL - BOI
1 stop21h 11mSpirit Airlines
Deal found 7/16$295
This Alaska Airlines deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/273:19 pmBOI - STL
1 stop7h 40mAlaska Airlines
Mon 9/307:31 pmSTL - BOI
1 stop14h 57mAlaska Airlines
Deal found 7/16$296
This Delta deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/145:47 amBOI - STL
1 stop6h 53mDelta
Thu 8/152:35 pmSTL - BOI
2 stops10h 17mDelta
Deal found 7/16$300
This Alaska Airlines deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/225:45 amBOI - STL
1 stop6h 40mAlaska Airlines
Mon 8/267:31 pmSTL - BOI
2 stops14h 42mAlaska Airlines
Deal found 7/17$304
This KAYAK deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/31:03 pmBOI - STL
3 stops27h 26mSpirit Airlines
Wed 8/74:02 pmSTL - BOI
1 stop28h 12mSpirit Airlines
Deal found 7/16$316

Boise to St. Louis flights leaving soon

Find last-minute flight options from Boise to St. Louis 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 2,731,402 searches. Data last updated July 17, 2024.
Check out these flights departing soon from Boise to St. Louis. Users should be sure to double check the price, date, and time of their last-minute flight.
This JustFly deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JustFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/236:20 pmBOI - STL
1 stop19h 46mSpirit Airlines
Mon 7/294:02 pmSTL - BOI
1 stop21h 11mSpirit Airlines
Deal found 7/16$295
This KAYAK deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/231:03 pmBOI - STL
1 stop25h 03mSpirit Airlines
Tue 7/3010:11 amSTL - BOI
2 stops27h 02mSpirit Airlines
Deal found 7/16$325
This KAYAK deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/231:03 pmBOI - STL
1 stop25h 03mSpirit Airlines
Tue 7/3010:11 amSTL - BOI
3 stops33h 17mSpirit Airlines
Deal found 7/16$368
This Alaska Airlines deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/238:59 pmBOI - STL
1 stop15h 21mAlaska Airlines
Tue 7/307:32 pmSTL - BOI
1 stop14h 57mAlaska Airlines
Deal found 7/16$544
This United Airlines deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2410:40 amBOI - STL
1 stop5h 08mUnited Airlines
Tue 7/304:36 pmSTL - BOI
1 stop6h 54mUnited Airlines
Deal found 7/16$584
This Delta deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/246:26 pmBOI - STL
1 stop5h 29mDelta
Wed 7/315:52 pmSTL - BOI
1 stop7h 18mDelta
Deal found 7/16$594
This American Airlines deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2212:51 amBOI - STL
1 stop7h 38mAmerican Airlines
Tue 7/308:01 amSTL - BOI
1 stop7h 48mAmerican Airlines
Deal found 7/16$624
This American Airlines deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2512:51 amBOI - STL
1 stop7h 38mAmerican Airlines
Sun 7/285:30 pmSTL - BOI
1 stop8h 31mAmerican Airlines
Deal found 7/16$738
This Delta deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/242:04 pmBOI - STL
1 stop8h 35mDelta
Wed 7/316:06 amSTL - BOI
2 stops11h 14mDelta
Deal found 7/16$769

One-way flights to St. Louis from Boise

Search for one-way flight options from Boise to St. Louis. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,731,402 searches. Data last updated July 17, 2024.
Take a look at some of the best available options we've come across on one-way flights from Boise to St. Louis. For those needing a return trip from Boise, there is a search form available above.
This American Airlines deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/202:14 pmBOI - STL
1 stop8h 30mAmerican Airlines
Deal found 7/16$338
This United Airlines deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/202:40 pmBOI - STL
2 stops18h 59mUnited Airlines
Deal found 7/16$464

Find flights from Boise to St. Louis within your budget

Customize your flight search to find flights from Boise to St. Louis 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 2,731,402 searches. Data last updated July 17, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$228 - $344

Route

Depart

Return

Price

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Wed 8/14

1 stop9h 47m

Lambert-St Louis

Thu 8/15

1 stop6h 13m

$228

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Thu 8/22

1 stop7h 40m

Lambert-St Louis

Mon 8/26

1 stop8h 24m

$236

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Thu 8/22

1 stop14h 44m

Lambert-St Louis

Mon 8/26

1 stop7h 36m

$246

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Thu 8/1

1 stop18h 02m

Lambert-St Louis

Mon 8/5

1 stop26h 28m

$250

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Fri 9/27

1 stop7h 40m

Lambert-St Louis

Mon 9/30

1 stop14h 57m

$296

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Wed 8/14

1 stop6h 53m

Lambert-St Louis

Thu 8/15

2 stops10h 17m

$300

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Thu 8/22

2 stops10h 34m

Lambert-St Louis

Mon 8/26

1 stop6h 45m

$324

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Thu 8/22

2 stops12h 23m

Lambert-St Louis

Mon 8/26

2 stops9h 46m

$326

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Wed 8/14

3 stops27h 30m

Lambert-St Louis

Thu 8/15

3 stops24h 49m

$344

Flights are sorted by cheapest first

Deals found on 7/16

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

Use this chart to determine the optimal time to book a round-trip flight from Boise to St. Louis. Price data was last updated on July 12, 2024.
To ensure you get the cheapest price possible for a flight from Boise to St. Louis, you should look to book at least 58 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

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

Use this chart to determine the cheapest time to fly round-trip from Boise to St. Louis. Price data was last updated on July 14, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Boise to St. Louis flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Boise to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Boise with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in St. Louis by month

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

STL

Temperature

32 - 80.6 °F

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated July 17, 2024.
Get a feel of what it's like to fly with American Airlines, Alaska Airlines and Spirit Airlines from Boise to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
9,381 reviews

Comfort

7.9

Food

7.2

Overall

8.1

Entertainment

7.2

Crew

8.6

Boarding

8.2

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

8.1
Very good
9,381 reviews
8.1
Very good
9,381 reviews

Comfort

7.9

Food

7.2

Overall

8.1

Entertainment

7.2

Crew

8.6

Boarding

8.2

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

8.0
Very good
9,766 reviews
8.1
Very good
9,381 reviews

Comfort

7.9

Food

7.2

Overall

8.1

Entertainment

7.2

Crew

8.6

Boarding

8.2

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

7.4
Good
10,000 reviews
8.1
Very good
9,381 reviews

Comfort

7.9

Food

7.2

Overall

8.1

Entertainment

7.2

Crew

8.6

Boarding

8.2

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

7.3
Good
10,000 reviews
8.1
Very good
9,381 reviews

Comfort

7.9

Food

7.2

Overall

8.1

Entertainment

7.2

Crew

8.6

Boarding

8.2

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

6.4
Okay
8,412 reviews
8.1
Very good
9,381 reviews

Comfort

7.9

Food

7.2

Overall

8.1

Entertainment

7.2

Crew

8.6

Boarding

8.2

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

Related info for your journey

Find useful and relevant information for your journey from Boise to St. Louis. 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 Boise to St. Louis for under $300 on Cheapflights?

    Yes, there are multiple flights from Boise to St. Louis for under $300. The cheapest flight booked recently is on American Airlines for just $228, but on average you can expect to pay $315.

  • Are there last-minute flights available from Boise to St. Louis for under $300?

    There are currently 18+ open flights from Boise to St. Louis within the next 7 days for less than $300.

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

    Currently priced at $228, American Airlines will fly you from Boise to St. Louis and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Alaska Airlines and Spirit Airlines - these airlines can fly you to your destination from $236 and $246, respectively. You may be able to fly from Boise to St. Louis for 50% less than the average price by searching for these airlines.

  • What does BOI to STL mean?

    BOI and STL are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. BOI to STL refers to a flight route from Boise Air Term. Gowen Fld Airport to Lambert-St Louis Airport.

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

    The amount of baggage you can bring on your Boise to St. Louis 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 Boise to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Boise to St. Louis 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 Boise to St. Louis that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Boise to St. Louis 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 Boise to St. Louis that allow pets onboard?

    Many airlines flying from Boise to St. Louis 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 Boise to St. Louis?

    Yes, you can often find last-minute deals on Boise to St. Louis 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 Boise to St. Louis flight deals updated?

    The Boise to St. Louis flight deals you see on this page were last updated on 7/17.

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

  • What is the cheapest month to book a flight from Boise to St. Louis?

    Currently, September is the cheapest month in which you can book a flight from Boise to St. Louis (average of $313). Flying from Boise to St. Louis in March is currently the most expensive (average of $357). 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.

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Top 5 airlines flying from Boise to St. Louis

Discover the top 5 airlines that operate flights from Boise to St. Louis. 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 2,731,402 searches. Data last updated July 17, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$272Average$344FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$289Average$434FlexibilityNo cancel feeOn-time71%
DeltaCheapest$297Average$455FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$339Average$604FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$354Average$373FlexibilityNo cancel feeOn-time75%

Search flights from Boise to St. Louis by cabin class

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

Weekly flight availability from Boise to St. Louis

Explore weekly flight availability from Boise to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 17, 2024.
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