$192+ 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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SDF
Sep 10 — Sep 171
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
Cheapest
Best
Last-minute
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 August 11, 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 August 11, 2026.
This United Airlines deal was found by Cheapflights users on 8/10. 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 11/102:51 pm -
1 stop5h 33m
Sat 11/145:15 am -
1 stop8h 15m
Deal found 8/10![United Airlines logo]()
$367
This Southwest deal was found by Cheapflights users on 8/10. 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 10/35:20 am -
1 stop6h 35m
Mon 10/56:35 am -
2 stops8h 45m
Deal found 8/10![Southwest logo]()
$368
This American Airlines deal was found by Cheapflights users on 8/7. 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 8/2212:12 pm -
1 stop8h 05m
Wed 8/265:29 pm -
1 stop6h 42m
Deal found 8/7![American Airlines logo]()
$379
This Southwest deal was found by Cheapflights users on 8/7. 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 8/228:30 am -
1 stop5h 25m
Wed 8/261:15 pm -
2 stops11h 10m
Deal found 8/7![Southwest logo]()
$384
This United Airlines deal was found by Cheapflights users on 8/7. 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 9/32:44 pm -
1 stop5h 47m
Tue 9/83:25 pm -
1 stop8h 20m
Deal found 8/7![United Airlines logo]()
$400
This Southwest deal was found by Cheapflights users on 8/7. 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 9/36:30 am -
2 stops14h 40m
Tue 9/84:00 pm -
2 stops9h 15m
Deal found 8/7![Southwest logo]()
$413
This Delta deal was found by Cheapflights users on 8/10. 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 10/211:10 pm -
1 stop9h 09m
Sun 10/46:30 am -
1 stop9h 14m
Deal found 8/10![Delta logo]()
$422
This Delta deal was found by Cheapflights users on 8/10. 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 9/12:53 pm -
1 stop7h 03m
Mon 9/76:50 am -
1 stop8h 52m
Deal found 8/10![Delta logo]()
$431
This American Airlines deal was found by Cheapflights users on 8/7. 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 9/16:44 am -
1 stop8h 15m
Mon 9/77:03 am -
1 stop6h 13m
Deal found 8/7![American Airlines logo]()
$433
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 August 11, 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 August 11, 2026.
This United Airlines deal was found by Cheapflights users on 8/10. 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 11/102:51 pm -
1 stop5h 33m
Sat 11/145:15 am -
1 stop8h 15m
Deal found 8/10![United Airlines logo]()
$367
This American Airlines deal was found by Cheapflights users on 8/7. 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 8/2212:12 pm -
1 stop8h 05m
Wed 8/265:29 pm -
1 stop6h 42m
Deal found 8/7![American Airlines logo]()
$379
This Southwest deal was found by Cheapflights users on 8/7. 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 8/228:30 am -
1 stop5h 25m
Wed 8/261:15 pm -
2 stops11h 10m
Deal found 8/7![Southwest logo]()
$384
This Delta deal was found by Cheapflights users on 8/10. 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 9/12:53 pm -
1 stop7h 03m
Mon 9/76:50 am -
1 stop8h 52m
Deal found 8/10![Delta logo]()
$431
This Southwest deal was found by Cheapflights users on 8/7. 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 9/36:30 am -
2 stops14h 40m
Tue 9/811:50 am -
1 stop13h 35m
Deal found 8/7![Southwest logo]()
$453
Last-minute flights from Boise to LouisvilleDiscover last-minute flight deals from Boise to Louisville. Data last updated August 11, 2026 and is based on user searches.
Discover last-minute flight deals from Boise to Louisville. Data last updated August 11, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 8/7. 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 8/2212:12 pm -
1 stop8h 05m
Wed 8/265:29 pm -
1 stop6h 42m
Deal found 8/7![American Airlines logo]()
$379
This Southwest deal was found by Cheapflights users on 8/7. 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 8/228:30 am -
1 stop5h 25m
Wed 8/261:15 pm -
2 stops11h 10m
Deal found 8/7![Southwest logo]()
$384
This Delta deal was found by Cheapflights users on 8/10. 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 8/301:59 pm -
1 stop8h 35m
Tue 9/18:05 am -
1 stop6h 44m
Deal found 8/10![Delta logo]()
$461
This Delta deal was found by Cheapflights users on 8/10. 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 9/12:53 pm -
1 stop7h 03m
Mon 9/76:50 am -
1 stop8h 52m
Deal found 8/10![Delta logo]()
$431
This American Airlines deal was found by Cheapflights users on 8/7. 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 9/16:44 am -
1 stop8h 15m
Mon 9/77:03 am -
1 stop6h 13m
Deal found 8/7![American Airlines logo]()
$433
This United Airlines deal was found by Cheapflights users on 8/7. 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 9/32:44 pm -
1 stop5h 47m
Tue 9/83:25 pm -
1 stop8h 20m
Deal found 8/7![United Airlines logo]()
$400
This Southwest deal was found by Cheapflights users on 8/7. 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 9/36:30 am -
2 stops14h 40m
Tue 9/84:00 pm -
2 stops9h 15m
Deal found 8/7![Southwest logo]()
$413
This United Airlines deal was found by Cheapflights users on 8/7. 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 9/32:44 pm -
1 stop5h 47m
Mon 9/75:15 am -
1 stop8h 13m
Deal found 8/7![United Airlines logo]()
$435
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 August 11, 2026.
Search for one-way flight options from Boise to Louisville. Find affordable one-way fares based on user searches. Data last updated August 11, 2026.
This Delta deal was found by Cheapflights users on 8/10. 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 9/1811:10 pm -
1 stop9h 09m
Deal found 8/10![Delta logo]()
$192
This Southwest deal was found by Cheapflights users on 8/10. 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 9/186:30 am -
2 stops14h 40m
Deal found 8/10![Southwest logo]()
$203
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/182:50 pm -
3 stops51h 39m
Deal found 8/10![Multiple Airlines logo]()
$282
This Southwest deal was found by Cheapflights users on 8/11. 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 8/1912:35 pm -
1 stop7h 55m
Deal found 8/11![Southwest logo]()
$291
This United Airlines deal was found by Cheapflights users on 8/11. 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 8/195:00 am -
2 stops9h 38m
Deal found 8/11![United Airlines logo]()
$296
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/192:17 pm -
3 stops23h 33m
Deal found 8/11![Multiple Airlines logo]()
$667
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 August 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $367 (United Airlines) |
One-way from | $192 (Delta) |
Popular in | October |
Cheapest in | May |
Average price | $490 |
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 August 11, 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
Tue 11/10
2:51 pm-10:24 pm
1 stop5h 33m
Louisville Intl
Sat 11/14
5:15 am-11:30 am
1 stop8h 15m
$367
BoiseLouisville
BOI Boise Air Term. Gowen Fld - SDF Louisville Intl
BOISDF
Boise Air Term. Gowen Fld
Sat 8/22
12:12 pm-10:17 pm
1 stop8h 05m
Louisville Intl
Wed 8/26
5:29 pm-10:11 pm
1 stop6h 42m
$379
BoiseLouisville
BOI Boise Air Term. Gowen Fld - SDF Louisville Intl
BOISDF
Boise Air Term. Gowen Fld
Sat 8/22
8:30 am-3:55 pm
1 stop5h 25m
Louisville Intl
Wed 8/26
1:15 pm-10:25 pm
2 stops11h 10m
$384
BoiseLouisville
BOI Boise Air Term. Gowen Fld - SDF Louisville Intl
BOISDF
Boise Air Term. Gowen Fld
Tue 9/1
2:53 pm-11:56 pm
1 stop7h 03m
Louisville Intl
Mon 9/7
6:50 am-1:42 pm
1 stop8h 52m
$431
BoiseLouisville
BOI Boise Air Term. Gowen Fld - SDF Louisville Intl
BOISDF
Boise Air Term. Gowen Fld
Thu 9/3
6:30 am-11:10 pm
2 stops14h 40m
Louisville Intl
Tue 9/8
11:50 am-11:25 pm
1 stop13h 35m
$453
Cheapest one-way
BoiseLouisville
BOI Boise Air Term. Gowen Fld - SDF Louisville Intl
BOISDF
Boise Air Term. Gowen Fld
Fri 9/18
11:10 pm-10:19 am
1 stop9h 09m
$192
BoiseLouisville
BOI Boise Air Term. Gowen Fld - SDF Louisville Intl
BOISDF
Boise Air Term. Gowen Fld
Fri 9/18
6:30 am-11:10 pm
2 stops14h 40m
$203
BoiseLouisville
BOI Boise Air Term. Gowen Fld - SDF Louisville Intl
BOISDF
Boise Air Term. Gowen Fld
Fri 9/18
2:50 pm-8:29 pm
3 stops51h 39m
$282
Quickest one-way
BoiseLouisville
BOI Boise Air Term. Gowen Fld - SDF Louisville Intl
BOISDF
Boise Air Term. Gowen Fld
Wed 8/19
12:35 pm-10:30 pm
1 stop7h 55m
$291
BoiseLouisville
BOI Boise Air Term. Gowen Fld - SDF Louisville Intl
BOISDF
Boise Air Term. Gowen Fld
Wed 8/19
5:00 am-4:38 pm
2 stops9h 38m
$296
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 August.
| 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
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 August 11, 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.
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
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 locationsCorydon
Shepherdsville
Elizabethtown
Jeffersonville
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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 August 11, 2026.
Boise and Louisville flights
Browse other Boise and Louisville flight options. Last updated on August 11, 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 August 11, 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 2,558,603 searches. Data last updated August 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$329 | Average$466 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$344 | Average$483 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$372 | Average$524 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$381 | Average$517 | FlexibilityNo cancel fee | On-time69% |