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$176+ 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 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SDF
oct. 17 — oct. 241
vie. 10/17
vie. 10/24
1 adult, Economy
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Cheap 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 septiembre 17, 2025.

Round-trip from

$346
(American Airlines)

One-way from

$176
(American Airlines)

Popular in

March

Cheapest in

February

Average price

$466
From Boise Air Term. Gowen Fld to Louisville Intl
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One-way flight from Boise Air Term. Gowen Fld to Louisville Intl
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Highest demand for flights based on searches. 3% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 septiembre 17, 2025.

This American Airlines deal was found by Cheapflights users on 9/16. 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.
vie. 11/141:40 pmBOI - SDF
1 stop20h 33mAmerican Airlines
mar. 11/187:13 amSDF - BOI
1 stop7h 22mAmerican Airlines
Deal found 9/16$346
This Delta deal was found by Cheapflights users on 9/16. 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.
jue. 11/61:39 pmBOI - SDF
1 stop8h 22mDelta
lun. 11/107:26 pmSDF - BOI
1 stop6h 43mDelta
Deal found 9/16$351
This United Airlines deal was found by Cheapflights users on 9/16. 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.
vie. 11/1412:35 pmBOI - SDF
1 stop7h 54mUnited Airlines
mar. 11/182:02 pmSDF - BOI
2 stops9h 34mUnited Airlines
Deal found 9/16$353
This Delta deal was found by Cheapflights users on 9/16. 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.
vie. 11/1411:35 pmBOI - SDF
2 stops12h 48mDelta
mar. 11/186:35 amSDF - BOI
2 stops11h 30mDelta
Deal found 9/16$358
This American Airlines deal was found by Cheapflights users on 9/16. 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.
mié. 11/51:25 pmBOI - SDF
1 stop6h 36mAmerican Airlines
dom. 11/97:13 amSDF - BOI
1 stop7h 22mAmerican Airlines
Deal found 9/16$377
This Delta deal was found by Cheapflights users on 9/16. 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.
jue. 11/1311:13 amBOI - SDF
2 stops10h 53mDelta
lun. 11/173:09 pmSDF - BOI
2 stops11h 00mDelta
Deal found 9/16$404
This Delta deal was found by Cheapflights users on 9/16. 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.
mié. 11/511:12 amBOI - SDF
2 stops9h 42mDelta
dom. 11/97:26 pmSDF - BOI
1 stop6h 43mDelta
Deal found 9/16$443
This Delta deal was found by Cheapflights users on 9/16. 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.
jue. 11/61:39 pmBOI - SDF
1 stop8h 22mDelta
dom. 11/96:35 amSDF - BOI
1 stop9h 29mDelta
Deal found 9/16$455

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 septiembre 17, 2025.
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

vie. 11/14

1:40 pm-12:13 pm

1 stop20h 33m

Louisville Intl

mar. 11/18

7:13 am-12:35 pm

1 stop7h 22m

$346

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

jue. 11/13

1:40 pm-10:55 pm

1 stop7h 15m

Louisville Intl

lun. 11/17

7:13 am-12:35 pm

1 stop7h 22m

$351

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

vie. 11/14

12:35 pm-10:29 pm

1 stop7h 54m

Louisville Intl

mar. 11/18

2:02 pm-9:36 pm

2 stops9h 34m

$353

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

jue. 11/13

3:00 pm-11:00 pm

1 stop6h 00m

Louisville Intl

lun. 11/17

3:09 pm-12:09 am

2 stops11h 00m

$356

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

jue. 11/6

11:39 pm-1:53 pm

2 stops12h 14m

Louisville Intl

lun. 11/10

3:09 pm-12:35 am

2 stops11h 26m

$434

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

mar. 3/10

3:00 pm-10:55 pm

1 stop5h 55m

Louisville Intl

mié. 3/11

5:45 pm-10:50 pm

1 stop7h 05m

$437

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

lun. 12/15

6:44 am-5:38 pm

1 stop8h 54m

$176

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

lun. 12/15

11:10 am-11:08 pm

2 stops9h 58m

$181

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

mié. 11/26

1:33 pm-10:54 pm

1 stop7h 21m

$184

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

mié. 11/26

11:35 pm-1:42 pm

2 stops12h 07m

$224

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 11 results
1
2

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, January is the cheapest month in which you can book a flight from Boise to Louisville (average of $299). Flying from Boise to Louisville in April is currently the most expensive (average of $369). 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.

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

Find hourly flight availability from Boise to Louisville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 17, 2025.

It’s optimal to fly from Boise to Louisville in the evening. By choosing this option you can save up to 26% on the cost of your flight, compared to a flight in the morning.

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 septiembre 17, 2025.
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
4,242 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,961 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,926 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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, United Airlines, and Delta fly from Boise to Louisville in about 6h. The time it takes to get you to your destination can typically vary by up to 14h 33m. 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 $306, 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 $348 and $377, respectively. Delta is 37% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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, January is the cheapest month in which you can book a flight from Boise to Louisville (average of $299). Flying from Boise to Louisville in April is currently the most expensive (average of $369). 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 septiembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$306Average$431FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$348Average$446FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$377Average$466FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$401Average$657FlexibilityNo cancel feeOn-time69%

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