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$219+ Cheap flights from Boise to Louisville (BOI - SDF)

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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SDF
Feb 19 — Feb 261
Thu 2/19
Thu 2/26
1 adult, Economy
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Cheap flight deals from Boise to Louisville

Cheapest flights from Boise to Louisville
Explore the most affordable flight options available from Boise to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 20, 2026.

This American Airlines deal was found by Cheapflights users on 1/20. 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.
Tue 3/37:00 am
BOI
-
SDF
1 stop8h 37m
American Airlines
Tue 3/107:40 am
SDF
-
BOI
1 stop7h 02m
American Airlines
Deal found 1/20$359
This Delta deal was found by Cheapflights users on 1/20. 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.
Tue 3/32:54 pm
BOI
-
SDF
1 stop6h 11m
Delta
Tue 3/102:17 pm
SDF
-
BOI
2 stops11h 27m
Delta
Deal found 1/20$364
This American Airlines deal was found by Cheapflights users on 1/20. 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 4/21:31 pm
BOI
-
SDF
1 stop7h 49m
American Airlines
Tue 4/76:00 am
SDF
-
BOI
1 stop9h 03m
American Airlines
Deal found 1/20$398
This Delta deal was found by Cheapflights users on 1/20. 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 4/21:55 pm
BOI
-
SDF
1 stop6h 48m
Delta
Tue 4/72:17 pm
SDF
-
BOI
2 stops9h 47m
Delta
Deal found 1/20$403
This American Airlines deal was found by Cheapflights users on 1/19. 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 5/81:29 pm
BOI
-
SDF
1 stop7h 58m
American Airlines
Sun 5/106:00 am
SDF
-
BOI
1 stop8h 38m
American Airlines
Deal found 1/19$437

Find flight deals from Boise to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to Louisville (SDF). 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 January 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$359
(American Airlines)

One-way from

$219
(American Airlines)

Popular in

March

Cheapest in

August

Average price

$448
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Louisville Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Louisville Intl flights.
Search Deals
From Boise Air Term. Gowen Fld to Louisville Intl
Search Deals
One-way flight from Boise Air Term. Gowen Fld to Louisville Intl
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($3 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise to Louisville 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 January 20, 2026.
Use the filters below to find and compare flights from Boise to Louisville that are best for you.

Fly from

Boise

Fly to

Louisville

Route

Depart

Return

Price

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Tue 3/3

7:00 am-5:37 pm

1 stop8h 37m

Louisville Intl

Tue 3/10

7:40 am-12:42 pm

1 stop7h 02m

$359

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Tue 3/3

2:54 pm-11:05 pm

1 stop6h 11m

Louisville Intl

Tue 3/10

2:17 pm-11:44 pm

2 stops11h 27m

$364

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Thu 4/2

1:31 pm-11:20 pm

1 stop7h 49m

Louisville Intl

Tue 4/7

6:00 am-1:03 pm

1 stop9h 03m

$398

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Thu 4/2

1:55 pm-10:43 pm

1 stop6h 48m

Louisville Intl

Tue 4/7

2:17 pm-10:04 pm

2 stops9h 47m

$403

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Thu 4/2

1:31 pm-11:20 pm

1 stop7h 49m

$219

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Fri 4/3

7:00 am-5:37 pm

1 stop8h 37m

$219

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Fri 4/3

6:00 am-5:15 pm

2 stops9h 15m

$224

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Thu 4/2

6:00 am-5:15 pm

2 stops9h 15m

$224

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Fri 4/3

8:28 pm-2:33 pm

3 stops40h 05m

$422

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Compare providers for flights from Boise to Louisville

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 Boise to Louisville in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust 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 Boise-Louisville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boise-Louisville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boise-Louisville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boise-Louisville flights, Cheapflights users trust Expedia the most. Expedia 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 Boise-Louisville 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 Boise to Louisville

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

Cheapflights Insights

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

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

Currently, September is the cheapest month in which you can book a flight from Boise to Louisville (average of $125). Flying from Boise to Louisville in December is currently the most expensive (average of $450). 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.

Reviews of airlines servicing Louisville

Get insights into the airlines that provide service to Louisville. 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 Louisville. Reviews last updated January 20, 2026.
See what other customers who have flown with Southwest, Delta, and United Airlines from Boise to Louisville have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,267 reviews

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,267 reviews
Southwest
8.0
Very good
4,267 reviews

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,076 reviews
Southwest
8.0
Very good
4,267 reviews

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,180 reviews
Southwest
8.0
Very good
4,267 reviews

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,164 reviews
Southwest
8.0
Very good
4,267 reviews

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Boise to Louisville. 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 Boise to Louisville?

    Airlines like American Airlines and Delta fly from Boise to Louisville in about 6h 11m. The time it takes to get you to your destination can typically vary by up to 2h 26m. Airlines will cover a distance of 1625 mi. This flight may include one or multiple stops.

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

    Currently priced at $208, Delta will fly you from Boise to Louisville and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Southwest and American Airlines - these airlines can fly you to your destination from $363 and $377, respectively. Delta is 56% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Boise to Louisville one-way?

    $153 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on United Airlines and Delta, with prices starting from $171 and $199, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boise to Louisville 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 Boise to Louisville?

    Currently, September is the cheapest month in which you can book a flight from Boise to Louisville (average of $125). Flying from Boise to Louisville in December is currently the most expensive (average of $450). 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 Louisville?

Book flights to Louisville if you plan to visit one of these locations
Shepherdsville
Jeffersonville
Elizabethtown
Corydon
Bardstown

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Top 4 airlines flying from Boise to Louisville

Discover the top 4 airlines that operate flights from Boise to Louisville. 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 January 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$208Average$432FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$363Average$467FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$377Average$467FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$381Average$573FlexibilityNo cancel feeOn-time69%

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