$363+ Cheap flights from Boise to Louisville (BOI - SDF)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SDF
Oct 22 — Oct 291
Round-trip
1 adult, Economy
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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
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Best
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One-way
Cheapest flights from Boise to LouisvilleExplore 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 September 22, 2026.
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 September 22, 2026.
This United Airlines deal was found by Cheapflights users on 9/20. 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.
Sat 10/1712:26 pm -
1 stop6h 05m
Tue 11/37:00 am -
1 stop6h 31m
Deal found 9/20![United Airlines logo]()
$363
This American Airlines deal was found by Cheapflights users on 9/20. 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.
Sat 10/177:00 am -
1 stop6h 27m
Tue 11/36:01 am -
2 stops9h 22m
Deal found 9/20![American Airlines logo]()
$368
This Southwest deal was found by Cheapflights users on 9/17. 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.
Wed 10/2111:20 am -
1 stop9h 40m
Sun 10/257:25 pm -
1 stop8h 30m
Deal found 9/17![Southwest logo]()
$372
This American Airlines deal was found by Cheapflights users on 9/18. 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 11/252:42 pm -
1 stop7h 33m
Tue 12/13:27 pm -
2 stops10h 32m
Deal found 9/18![American Airlines logo]()
$392
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Sat 11/142:51 pm -
1 stop5h 33m
Tue 11/178:00 am -
1 stop7h 45m
Deal found 9/17![United Airlines logo]()
$411
This Delta deal was found by Cheapflights users on 9/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/291:40 pm -
1 stop8h 19m
Sun 11/18:05 am -
1 stop7h 29m
Deal found 9/22![Delta logo]()
$415
This American Airlines deal was found by Cheapflights users on 9/19. 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.
Thu 10/2912:14 pm -
1 stop9h 13m
Sun 11/15:00 am -
2 stops10h 23m
Deal found 9/19![American Airlines logo]()
$420
This Southwest deal was found by Cheapflights users on 9/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:00 am -
2 stops10h 30m
Tue 11/310:15 am -
2 stops9h 45m
Deal found 9/20![Southwest logo]()
$423
Best flights from Boise to LouisvilleDiscover 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 September 22, 2026.
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 September 22, 2026.
This United Airlines deal was found by Cheapflights users on 9/20. 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.
Sat 10/1712:26 pm -
1 stop6h 05m
Tue 11/37:00 am -
1 stop6h 31m
Deal found 9/20![United Airlines logo]()
$363
This Southwest deal was found by Cheapflights users on 9/17. 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.
Wed 10/2111:20 am -
1 stop9h 40m
Sun 10/257:25 pm -
1 stop8h 30m
Deal found 9/17![Southwest logo]()
$372
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Sat 11/142:51 pm -
1 stop5h 33m
Tue 11/178:00 am -
1 stop7h 45m
Deal found 9/17![United Airlines logo]()
$411
This Southwest deal was found by Cheapflights users on 9/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:10 am -
2 stops10h 05m
Sun 11/14:40 pm -
2 stops10h 10m
Deal found 9/22![Southwest logo]()
$437
This United Airlines deal was found by Cheapflights users on 9/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2912:31 pm -
1 stop6h 21m
Sun 11/18:00 am -
1 stop7h 45m
Deal found 9/22![United Airlines logo]()
$415
Last-minute flights from Boise to LouisvilleDiscover last-minute flight deals from Boise to Louisville. Data last updated September 22, 2026 and is based on user searches.
Discover last-minute flight deals from Boise to Louisville. Data last updated September 22, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/20. 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.
Sat 10/1712:26 pm -
1 stop6h 05m
Tue 11/37:00 am -
1 stop6h 31m
Deal found 9/20![United Airlines logo]()
$363
This American Airlines deal was found by Cheapflights users on 9/20. 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.
Sat 10/177:00 am -
1 stop6h 27m
Tue 11/36:01 am -
2 stops9h 22m
Deal found 9/20![American Airlines logo]()
$368
This Southwest deal was found by Cheapflights users on 9/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:00 am -
2 stops10h 30m
Tue 11/310:15 am -
2 stops9h 45m
Deal found 9/20![Southwest logo]()
$423
This Southwest deal was found by Cheapflights users on 9/17. 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.
Wed 10/2111:20 am -
1 stop9h 40m
Sun 10/257:25 pm -
1 stop8h 30m
Deal found 9/17![Southwest logo]()
$372
This Delta deal was found by Cheapflights users on 9/17. 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 10/2211:10 pm -
1 stop7h 47m
Sun 10/256:00 am -
1 stop9h 34m
Deal found 9/17![Delta logo]()
$454
This Delta deal was found by Cheapflights users on 9/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/291:40 pm -
1 stop8h 19m
Sun 11/18:05 am -
1 stop7h 29m
Deal found 9/22![Delta logo]()
$415
This American Airlines deal was found by Cheapflights users on 9/19. 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.
Thu 10/2912:14 pm -
1 stop9h 13m
Sun 11/15:00 am -
2 stops10h 23m
Deal found 9/19![American Airlines logo]()
$420
One-way flights from Boise to LouisvilleSearch for one-way flight options from Boise to Louisville. Find affordable one-way fares based on user searches. Data last updated September 22, 2026.
Search for one-way flight options from Boise to Louisville. Find affordable one-way fares based on user searches. Data last updated September 22, 2026.
This United Airlines deal was found by Cheapflights users on 9/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2512:26 pm -
1 stop6h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![United Airlines logo]()
$661
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 September 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $363 (United Airlines) |
Popular in | October |
Cheapest in | May |
Average price | $442 |
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 7,457,451 searches. Data last updated September 22, 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
Cheapest round-trip
Quickest round-trip
BoiseLouisville
BOI Boise Air Term. Gowen Fld - SDF Louisville Intl
BOISDF
Boise Air Term. Gowen Fld
Sat 10/17
12:26 pm-8:31 pm
1 stop6h 05m
Louisville Intl
Tue 11/3
7:00 am-11:31 am
1 stop6h 31m
$363
BoiseLouisville
BOI Boise Air Term. Gowen Fld - SDF Louisville Intl
BOISDF
Boise Air Term. Gowen Fld
Wed 10/21
11:20 am-11:00 pm
1 stop9h 40m
Louisville Intl
Sun 10/25
7:25 pm-1:55 am
1 stop8h 30m
$372
BoiseLouisville
BOI Boise Air Term. Gowen Fld - SDF Louisville Intl
BOISDF
Boise Air Term. Gowen Fld
Sat 11/14
2:51 pm-10:24 pm
1 stop5h 33m
Louisville Intl
Tue 11/17
8:00 am-1:45 pm
1 stop7h 45m
$411
BoiseLouisville
BOI Boise Air Term. Gowen Fld - SDF Louisville Intl
BOISDF
Boise Air Term. Gowen Fld
Thu 10/29
12:31 pm-8:52 pm
1 stop6h 21m
Louisville Intl
Sun 11/1
8:00 am-1:45 pm
1 stop7h 45m
$415
BoiseLouisville
BOI Boise Air Term. Gowen Fld - SDF Louisville Intl
BOISDF
Boise Air Term. Gowen Fld
Thu 10/29
6:10 am-6:15 pm
2 stops10h 05m
Louisville Intl
Sun 11/1
4:40 pm-12:50 am
2 stops10h 10m
$437
Sorted by cheapest first
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
BOI-SDF
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, May is the cheapest month in which you can book a flight from Boise to Louisville (average of $436). 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 $484 and $997 in October.The cheapest round-trip price found within the last 5 days was $363 on United Airlines (Oct 17-Nov 3).
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 September 22, 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.
Entertainment
7.5
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Entertainment
7.5
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Entertainment
7.5
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Entertainment
7.5
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Entertainment
7.5
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
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.
Traveling to a place near Louisville?
Book flights to Louisville if you plan to visit one of these locationsShepherdsville
Elizabethtown
Jeffersonville
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Complete your trip
Complete your trip to Louisville by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Boise to Louisville by cabin class
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Other flights to Louisville
Explore flights to Louisville departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 22, 2026.
Boise and Louisville flights
Browse other Boise and Louisville flight options. Last updated on September 22, 2026.
Other flights from Boise
Browse through other flights departing from Boise. Flights are based on user searches made on Cheapflights and were last updated on September 22, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 7,457,451 searches. Data last updated September 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$344 | Average$529 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$372 | Average$524 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$381 | Average$517 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$386 | Average$466 | FlexibilityNo cancel fee | On-timeN/A |