HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Louisville

$161+ 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 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SDF
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
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

Best flights from Boise to Louisville
Discover carefully curated flight deals from Boise to Louisville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 4, 2025.

This Delta deal was found by Cheapflights users on 12/1. 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 2/214:55 pmBOI - SDF
2 stops14h 33mDelta
Wed 2/254:30 pmSDF - BOI
1 stop6h 25mDelta
Deal found 12/1$230
This American Airlines deal was found by Cheapflights users on 12/2. 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 1/233:18 pmBOI - SDF
1 stop6h 01mAmerican Airlines
Tue 1/278:07 amSDF - BOI
1 stop7h 46mAmerican Airlines
Deal found 12/2$261
This Delta deal was found by Cheapflights users on 12/2. 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.
Thu 1/229:15 amBOI - SDF
2 stops11h 51mDelta
Wed 1/286:23 amSDF - BOI
1 stop9h 11mDelta
Deal found 12/2$236
This American Airlines deal was found by Cheapflights users on 12/3. 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 2/53:18 pmBOI - SDF
1 stop6h 01mAmerican Airlines
Fri 2/67:40 amSDF - BOI
1 stop7h 28mAmerican Airlines
Deal found 12/3$291
This Delta deal was found by Cheapflights users on 12/2. 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 1/231:40 pmBOI - SDF
1 stop8h 10mDelta
Tue 1/274:59 pmSDF - BOI
2 stops8h 13mDelta
Deal found 12/2$266
This Delta deal was found by Cheapflights users on 12/3. 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 2/51:40 pmBOI - SDF
1 stop8h 10mDelta
Fri 2/67:50 amSDF - BOI
2 stops12h 38mDelta
Deal found 12/3$296
This Delta deal was found by Cheapflights users on 12/4. 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 1/251:40 pmBOI - SDF
1 stop8h 10mDelta
Wed 1/284:59 pmSDF - BOI
1 stop5h 56mDelta
Deal found 12/4$319
This Delta deal was found by Cheapflights users on 12/2. 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.
Tue 3/31:38 pmBOI - SDF
1 stop8h 20mDelta
Tue 3/106:00 amSDF - BOI
1 stop9h 04mDelta
Deal found 12/2$319

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 December 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$230
(Delta)

One-way from

$161
(American Airlines)

Popular in

March

Cheapest in

February

Average price

$578
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. 4% potential increase in price ($25 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 4, 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

Sat 2/21

4:55 pm-9:28 am

2 stops14h 33m

Louisville Intl

Wed 2/25

4:30 pm-8:55 pm

1 stop6h 25m

$230

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Thu 1/22

9:15 am-11:06 pm

2 stops11h 51m

Louisville Intl

Wed 1/28

6:23 am-1:34 pm

1 stop9h 11m

$236

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Fri 1/23

3:18 pm-11:19 pm

1 stop6h 01m

Louisville Intl

Tue 1/27

8:07 am-1:53 pm

1 stop7h 46m

$261

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Fri 1/23

1:40 pm-11:50 pm

1 stop8h 10m

Louisville Intl

Tue 1/27

4:59 pm-11:12 pm

2 stops8h 13m

$266

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Thu 2/5

3:18 pm-11:19 pm

1 stop6h 01m

Louisville Intl

Fri 2/6

7:40 am-1:08 pm

1 stop7h 28m

$291

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Thu 2/5

1:40 pm-11:50 pm

1 stop8h 10m

Louisville Intl

Fri 2/6

7:50 am-6:28 pm

2 stops12h 38m

$296

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Sun 1/25

1:40 pm-11:50 pm

1 stop8h 10m

Louisville Intl

Wed 1/28

4:59 pm-8:55 pm

1 stop5h 56m

$319

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Tue 3/3

1:38 pm-11:58 pm

1 stop8h 20m

Louisville Intl

Tue 3/10

6:00 am-1:04 pm

1 stop9h 04m

$319

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Fri 1/23

7:20 am-5:33 pm

1 stop8h 13m

$161

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Fri 1/23

10:15 am-10:24 pm

2 stops10h 09m

$166

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

Showing 1-10 of 13 results
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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boise-Louisville flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 $457). 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 December 4, 2025.

It’s optimal to fly from Boise to Louisville in the evening. By choosing this option you can save up to 25% 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 December 4, 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
4,250 reviews

Crew

8.6

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Entertainment

7.5

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
4,250 reviews
Southwest
8.0
Very good
4,250 reviews

Crew

8.6

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Entertainment

7.5

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
8,011 reviews
Southwest
8.0
Very good
4,250 reviews

Crew

8.6

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Entertainment

7.5

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
9,066 reviews
Southwest
8.0
Very good
4,250 reviews

Crew

8.6

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Entertainment

7.5

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
11,047 reviews
Southwest
8.0
Very good
4,250 reviews

Crew

8.6

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Entertainment

7.5

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 Delta and American Airlines fly from Boise to Louisville in about 6h 01m. The time it takes to get you to your destination can typically vary by up to 8h 32m. 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 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 $457). 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.

Alternative routes for Boise to Louisville

See prices for flight routes from nearby airports that may be better suited for you.
Boise to Nashville flights
Spokane to Nashville flights
Spokane to Cincinnati flights
Spokane to Knoxville flights
Spokane to Louisville flights
Boise to Knoxville flights
Idaho Falls to Knoxville flights
Idaho Falls to Nashville flights
Boise to Cincinnati flights
Idaho Falls to Louisville flights
Jackson to Nashville flights
Idaho Falls to Cincinnati flights
Jackson to Louisville flights
Hailey to Knoxville flights
Idaho Falls to Lexington flights
Pocatello to Knoxville flights
Boise to Lexington flights
Spokane to Evansville flights
Twin Falls to Cincinnati flights
Jackson to Cincinnati flights
Jackson to Knoxville flights
Spokane to Blountville flights
Hailey to Louisville flights
Hailey to Nashville flights
Lewiston to Knoxville flights
Lewiston to Lexington flights
Lewiston to Cincinnati flights
Jackson to Lexington flights
Spokane to Lexington flights
Pocatello to Lexington flights
Twin Falls to Knoxville flights
Boise to Paducah flights

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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$306Average$452FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$363Average$467FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$377Average$467FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$401Average$710FlexibilityNo 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.