HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Louisville

$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 3/13. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SDF
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boise to Louisville with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 February 4, 2026.

This American Airlines deal was found by Cheapflights users on 2/3. 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 4/21:39 pm
BOI
-
SDF
1 stop8h 19m
American Airlines
Tue 4/76:00 am
SDF
-
BOI
1 stop8h 49m
American Airlines
Deal found 2/3$398
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Tue 3/32:40 pm
BOI
-
SDF
1 stop5h 57m
United Airlines
Tue 3/107:05 am
SDF
-
BOI
1 stop7h 08m
United Airlines
Deal found 2/2$402
This Delta deal was found by Cheapflights users on 2/3. 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 4/23:01 pm
BOI
-
SDF
1 stop6h 08m
Delta
Tue 4/77:45 am
SDF
-
BOI
2 stops12h 58m
Delta
Deal found 2/3$403
This Southwest deal was found by Cheapflights users on 2/2. 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 3/311:50 am
BOI
-
SDF
2 stops8h 20m
Southwest
Tue 3/108:55 am
SDF
-
BOI
2 stops8h 55m
Southwest
Deal found 2/2$412
This American Airlines deal was found by Cheapflights users on 2/3. 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 stop8h 54m
American Airlines
Sun 5/106:00 am
SDF
-
BOI
1 stop8h 49m
American Airlines
Deal found 2/3$437
This Delta deal was found by Cheapflights users on 2/2. 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.
Fri 5/81:52 pm
BOI
-
SDF
1 stop8h 28m
Delta
Sun 5/106:00 am
SDF
-
BOI
2 stops9h 19m
Delta
Deal found 2/2$442
This Southwest deal was found by Cheapflights users on 2/2. 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 3/276:00 am
BOI
-
SDF
2 stops8h 40m
Southwest
Mon 3/303:35 pm
SDF
-
BOI
2 stops11h 45m
Southwest
Deal found 2/2$447
This American Airlines deal was found by Cheapflights users on 2/2. 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 3/271:39 pm
BOI
-
SDF
1 stop6h 59m
American Airlines
Mon 3/306:00 am
SDF
-
BOI
1 stop8h 48m
American Airlines
Deal found 2/2$456
This Delta deal was found by Cheapflights users on 2/4. 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 3/2211:30 pm
BOI
-
SDF
2 stops12h 07m
Delta
Thu 3/264:25 pm
SDF
-
BOI
1 stop6h 44m
Delta
Deal found 2/4$472

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 February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$398
(American Airlines)

One-way from

$219
(Delta)

Popular in

March

Cheapest in

August

Average price

$464
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. 5% potential increase in price ($25 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 February 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 February 4, 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

Thu 4/2

1:39 pm-11:58 pm

1 stop8h 19m

Louisville Intl

Tue 4/7

5:41 pm-10:38 pm

1 stop6h 57m

$398

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Tue 3/3

2:40 pm-10:37 pm

1 stop5h 57m

Louisville Intl

Tue 3/10

7:05 am-12:13 pm

1 stop7h 08m

$402

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

7:30 am-1:00 pm

1 stop7h 30m

$402

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Thu 4/2

1:40 pm-10:43 pm

1 stop7h 03m

Louisville Intl

Tue 4/7

2:17 pm-11:45 pm

2 stops11h 28m

$403

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Tue 3/3

5:50 am-9:18 pm

2 stops13h 28m

Louisville Intl

Tue 3/10

6:00 am-12:38 pm

1 stop8h 38m

$407

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Tue 3/3

11:50 am-10:10 pm

2 stops8h 20m

Louisville Intl

Tue 3/10

8:55 am-3:50 pm

2 stops8h 55m

$412

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Sun 3/22

1:31 pm-11:20 pm

1 stop7h 49m

Louisville Intl

Thu 3/26

6:00 am-12:48 pm

1 stop8h 48m

$437

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Fri 3/13

11:30 pm-9:28 am

1 stop7h 58m

$219

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Fri 3/13

6:03 pm-2:33 pm

3 stops42h 30m

$639

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

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 February.
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, 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 February 4, 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
4,274 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.0

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
4,274 reviews
Southwest
8.0
Very good
4,274 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.0

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
8,144 reviews
Southwest
8.0
Very good
4,274 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.0

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
9,236 reviews
Southwest
8.0
Very good
4,274 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.0

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
11,222 reviews
Southwest
8.0
Very good
4,274 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.0

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, United Airlines, and Delta fly from Boise to Louisville in about 5h 57m. The time it takes to get you to your destination can typically vary by up to 2h 22m. 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 $379, respectively. Delta is 57% 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 February 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$208Average$423FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$363Average$467FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$379Average$467FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$381Average$561FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.