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$156+ Cheap flights from Louisville to Boise (SDF - BOI)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — BOI
Aug 24 — Aug 311
Mon 8/24
Mon 8/31
1 adult, Economy
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Cheap flight deals from Louisville to Boise

Cheapest flights from Louisville to Boise
Explore the most affordable flight options available from Louisville to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2026.

This Delta deal was found by Cheapflights users on 7/23. 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.
Sat 9/124:29 pm
SDF
-
BOI
1 stop6h 28m
Delta
Sat 9/265:30 am
BOI
-
SDF
1 stop8h 19m
Delta
Deal found 7/23$311
This American Airlines deal was found by Cheapflights users on 7/22. 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 8/197:03 am
SDF
-
BOI
1 stop6h 13m
American Airlines
Sat 8/228:01 am
BOI
-
SDF
2 stops11h 24m
American Airlines
Deal found 7/22$316
This United Airlines deal was found by Cheapflights users on 7/21. 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.
Thu 8/206:00 am
SDF
-
BOI
2 stops9h 38m
United Airlines
Thu 8/272:44 pm
BOI
-
SDF
1 stop5h 47m
United Airlines
Deal found 7/21$329
This Southwest deal was found by Cheapflights users on 7/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/208:30 am
SDF
-
BOI
2 stops9h 45m
Southwest
Thu 8/2711:30 am
BOI
-
SDF
2 stops9h 05m
Southwest
Deal found 7/21$344
This Delta deal was found by Cheapflights users on 7/23. 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.
Sat 9/126:30 am
SDF
-
BOI
1 stop8h 59m
Delta
Wed 9/302:50 pm
BOI
-
SDF
1 stop6h 53m
Delta
Deal found 7/23$345
This Southwest deal was found by Cheapflights users on 7/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/147:55 am
SDF
-
BOI
2 stops10h 20m
Southwest
Mon 9/286:00 am
BOI
-
SDF
1 stop6h 40m
Southwest
Deal found 7/23$350
This American Airlines deal was found by Cheapflights users on 7/25. 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 10/27:03 am
SDF
-
BOI
1 stop9h 28m
American Airlines
Sat 10/1012:19 pm
BOI
-
SDF
1 stop7h 06m
American Airlines
Deal found 7/25$377
This Delta deal was found by Cheapflights users on 7/23. 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.
Sun 9/136:00 am
SDF
-
BOI
1 stop9h 01m
Delta
Sat 9/265:30 am
BOI
-
SDF
1 stop8h 19m
Delta
Deal found 7/23$389
This United Airlines deal was found by Cheapflights users on 7/22. 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 8/216:00 am
SDF
-
BOI
2 stops9h 38m
United Airlines
Mon 8/245:00 am
BOI
-
SDF
1 stop7h 29m
United Airlines
Deal found 7/22$394
This Southwest deal was found by Cheapflights users on 7/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/23:35 pm
SDF
-
BOI
2 stops9h 20m
Southwest
Sat 10/105:30 am
BOI
-
SDF
1 stop6h 25m
Southwest
Deal found 7/25$398

Find flight deals from Louisville to Boise

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) 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 July 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$311
(Delta)

One-way from

$156
(Southwest)

Popular in

December

Cheapest in

September

Average price

$462
Provider with most accurate pricing for Louisville Intl-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-Boise Air Term. Gowen Fld flights.
Search Deals
From Louisville Intl to Boise Air Term. Gowen Fld
Search Deals
One-way flight from Louisville Intl to Boise Air Term. Gowen Fld
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville 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 2,558,603 searches. Data last updated July 25, 2026.
Use the filters below to find and compare flights from Louisville to Boise that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Fri 8/21

5:15 am-11:28 am

1 stop8h 13m

Boise Air Term. Gowen Fld

Mon 8/24

6:30 am-2:29 pm

1 stop5h 59m

$389

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Fri 8/21

8:30 am-4:15 pm

2 stops9h 45m

Boise Air Term. Gowen Fld

Mon 8/24

6:00 am-5:20 pm

2 stops9h 20m

$399

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Fri 10/23

6:35 am-1:20 pm

2 stops8h 45m

Boise Air Term. Gowen Fld

Mon 10/26

6:50 am-11:10 pm

2 stops14h 20m

$401
Quickest round-trip

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Tue 8/25

8:00 am-1:38 pm

1 stop7h 38m

Boise Air Term. Gowen Fld

Sat 8/29

12:24 pm-8:36 pm

1 stop6h 12m

$411

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Fri 10/2

3:35 pm-10:55 pm

2 stops9h 20m

Boise Air Term. Gowen Fld

Sat 10/10

6:00 am-6:25 pm

2 stops10h 25m

$437

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Sun 9/13

6:00 am-1:01 pm

1 stop9h 01m

Boise Air Term. Gowen Fld

Fri 9/18

11:10 pm-10:19 am

1 stop9h 09m

$442
Cheapest one-way

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Sat 9/12

6:30 am-1:29 pm

1 stop8h 59m

$156

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Tue 9/1

4:00 pm-10:25 pm

2 stops8h 25m

$161

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Fri 9/11

7:03 am-2:31 pm

1 stop9h 28m

$161

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Fri 9/11

10:40 am-4:15 pm

1 stop7h 35m

$161

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/23

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

Compare providers for flights from Louisville to Boise

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Louisville to Boise in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Louisville-Boise flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-Boise flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-Boise flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Louisville-Boise flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Louisville-Boise flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Louisville to Boise

Have a flexible travel schedule? Discover the best time to fly to Boise from Louisville 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.

Cheapflights Insights

Everything you need to know about your flight from Louisville to Boise

What is the cheapest month to book a flight from Louisville to Boise?

Currently, September is the cheapest month in which you can book a flight from Louisville to Boise (average of $306). Flying from Louisville to Boise in December is currently the most expensive (average of $700). 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.

How much does it cost to fly round-trip from Louisville to Boise?

Airfare is below average for this route at the moment.

Louisville to Boise flights typically cost between $375 and $562 in September.
The cheapest round-trip price found within the last 5 days was $311 on Delta (Sep 12-Sep 26).

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 July 25, 2026.
Read through reviews of airlines operating flights from Louisville to Boise, such as Southwest,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,233 reviews

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
Southwest
8.0
Very good
4,233 reviews
Southwest
8.0
Very good
4,233 reviews

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
Delta
7.8
Good
8,486 reviews
Southwest
8.0
Very good
4,233 reviews

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
United Airlines
7.4
Good
10,034 reviews
Southwest
8.0
Very good
4,233 reviews

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
American Airlines
7.1
Good
11,848 reviews
Southwest
8.0
Very good
4,233 reviews

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.

Related info for your journey

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

  • How long is the flight from Louisville to Boise?

    Airlines like United Airlines and Southwest fly from Louisville to Boise in about 8h 13m. The time it takes to get you to your destination can typically vary by up to 1h 32m. There are 1625 mi between Louisville and Boise. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Louisville to Boise round-trip?

    Cheapflights users have booked flights from Louisville to Boise round-trip from $306. Other airlines that can offer you cheap pricing are Delta, from $354, and United Airlines, from $386. American Airlines is priced at 35% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Louisville to Boise that include hotel bookings?

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

  • How can I find direct flights from Louisville to Boise?

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

  • Can I find deals for business class flights from Louisville to Boise?

    Yes. Cheapflights offers flight deals from Louisville 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.

  • What is the cheapest month to book a flight from Louisville to Boise?

    Currently, September is the cheapest month in which you can book a flight from Louisville to Boise (average of $306). Flying from Louisville to Boise in December is currently the most expensive (average of $700). 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.

See more FAQs

Traveling to a place near Boise?

Book flights to Boise if you plan to visit one of these locations
Meridian
Nampa
Caldwell
Ontario

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Top 4 airlines flying from Louisville to Boise

Discover the top 4 airlines that operate flights from Louisville 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 2,558,603 searches. Data last updated July 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$306Average$443FlexibilityNo cancel feeOn-time71%
DeltaCheapest$324Average$516FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$386Average$524FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$401Average$442FlexibilityNo cancel feeOn-time63%

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