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$169+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SDF
Aug 23 — Aug 301
Sun 8/23
Sun 8/30
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 July 24, 2026.

This United Airlines deal was found by Cheapflights users on 7/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/262:44 pm
BOI
-
SDF
1 stop5h 47m
United Airlines
Wed 9/25:15 am
SDF
-
BOI
1 stop8h 13m
United Airlines
Deal found 7/20$311
This Delta deal was found by Cheapflights users on 7/20. 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.
Wed 9/22:53 pm
BOI
-
SDF
1 stop7h 03m
Delta
Sun 9/66:00 am
SDF
-
BOI
1 stop8h 49m
Delta
Deal found 7/20$323
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 9/212:12 pm
BOI
-
SDF
1 stop8h 05m
American Airlines
Mon 9/77:03 am
SDF
-
BOI
1 stop6h 13m
American Airlines
Deal found 7/22$324
This American Airlines deal was found by Cheapflights users on 7/19. 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.
Sat 9/58:01 am
BOI
-
SDF
2 stops11h 24m
American Airlines
Wed 9/94:25 pm
SDF
-
BOI
1 stop8h 02m
American Airlines
Deal found 7/19$329
This Southwest deal was found by Cheapflights users on 7/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/182:20 pm
BOI
-
SDF
1 stop6h 40m
Southwest
Mon 8/2410:40 am
SDF
-
BOI
1 stop7h 35m
Southwest
Deal found 7/19$336
This United Airlines deal was found by Cheapflights users on 7/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/72:44 pm
BOI
-
SDF
1 stop5h 46m
United Airlines
Wed 10/147:00 am
SDF
-
BOI
1 stop6h 28m
United Airlines
Deal found 7/20$337
This American Airlines deal was found by Cheapflights users on 7/19. 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.
Tue 8/188:01 am
BOI
-
SDF
2 stops12h 16m
American Airlines
Mon 8/247:03 am
SDF
-
BOI
1 stop6h 13m
American Airlines
Deal found 7/19$341
This American Airlines deal was found by Cheapflights users on 7/20. 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.
Wed 8/268:01 am
BOI
-
SDF
2 stops11h 24m
American Airlines
Wed 9/27:03 am
SDF
-
BOI
2 stops11h 46m
American Airlines
Deal found 7/20$345

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 July 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$311
(United Airlines)

One-way from

$169
(Delta)

Popular in

October

Cheapest in

January

Average price

$529
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. 26% potential increase in price ($210 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 15% potential price decrease ($80 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 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 July 24, 2026.
Use the filters below to find and compare flights from Boise to Louisville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Wed 8/26

2:44 pm-10:31 pm

1 stop5h 47m

Louisville Intl

Wed 9/2

5:15 am-11:28 am

1 stop8h 13m

$311

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Sat 9/5

2:53 pm-10:53 pm

1 stop6h 00m

Louisville Intl

Wed 9/9

6:30 am-1:44 pm

1 stop9h 14m

$324

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Sat 9/5

8:01 am-9:25 pm

2 stops11h 24m

Louisville Intl

Wed 9/9

4:25 pm-10:27 pm

1 stop8h 02m

$329

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Tue 8/18

2:20 pm-11:00 pm

1 stop6h 40m

Louisville Intl

Mon 8/24

10:40 am-4:15 pm

1 stop7h 35m

$336
Quickest round-trip

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Wed 9/2

5:00 am-2:29 pm

1 stop7h 29m

Louisville Intl

Mon 9/7

7:10 am-11:28 am

1 stop6h 18m

$348

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Thu 9/3

2:44 pm-10:31 pm

1 stop5h 47m

Louisville Intl

Mon 9/7

5:15 am-11:28 am

1 stop8h 13m

$360

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Tue 9/29

6:00 am-5:55 pm

2 stops9h 55m

Louisville Intl

Fri 10/2

3:35 pm-10:55 pm

2 stops9h 20m

$399

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Sat 10/31

6:30 am-2:20 pm

1 stop5h 50m

Louisville Intl

Tue 11/3

3:25 pm-9:30 pm

1 stop8h 05m

$411
Cheapest one-way

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Sat 8/15

1:59 pm-12:09 am

1 stop8h 10m

$169

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Sat 8/15

3:25 pm-10:25 am

2 stops17h 00m

$180

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/20

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*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 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 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, January is the cheapest month in which you can book a flight from Boise to Louisville (average of $432). Flying from Boise to Louisville in October is currently the most expensive (average of $1,470). 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 Boise to Louisville?

Airfare is below average for this route at the moment.

Boise to Louisville flights typically cost between $374 and $574 in August.
The cheapest round-trip price found within the last 5 days was $311 on United Airlines (Aug 26-Sep 2).

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 July 24, 2026.
See what other customers who have flown with Southwest,Delta, andUnited 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
4,238 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

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
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

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
8,487 reviews
Southwest
8.0
Very good
4,238 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

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
10,027 reviews
Southwest
8.0
Very good
4,238 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

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
11,839 reviews
Southwest
8.0
Very good
4,238 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

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 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 United Airlines, Delta, and American Airlines fly from Boise to Louisville in about 5h 47m. The time it takes to get you to your destination can typically vary by up to 5h 37m. 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 $329, 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 $372 and $377, respectively. Delta is 44% 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 $432). Flying from Boise to Louisville in October is currently the most expensive (average of $1,470). 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
Corydon
Shepherdsville
Elizabethtown
Jeffersonville
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 July 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$329Average$466FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$372Average$524FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$377Average$483FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$381Average$517FlexibilityNo cancel feeOn-time69%

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