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$132+ 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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SDF
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap 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 June 12, 2025.

Round-trip from

$332
(Delta)

One-way from

$132
(FlightHub)

Popular in

March

Cheapest in

August

Average price

$545
From Boise Air Term. Gowen Fld to Louisville Intl
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One-way flight from Boise Air Term. Gowen Fld to Louisville Intl
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Highest demand for flights based on searches. 17% potential increase in price ($105 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find 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 June 12, 2025.

This FlightHub deal was found by Cheapflights users on 6/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/189:49 pmBOI - SDF
1 stop17h 01mSpirit Airlines
Mon 9/2212:00 pmSDF - BOI
2 stops10h 44mSpirit Airlines
Deal found 6/10$273
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/53:06 pmBOI - SDF
1 stop5h 54mDelta
Mon 9/87:34 pmSDF - BOI
1 stop6h 24mDelta
Deal found 6/11$332
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/71:17 pmBOI - SDF
1 stop7h 46mAmerican Airlines
Thu 10/96:34 amSDF - BOI
1 stop8h 10mAmerican Airlines
Deal found 6/11$346
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/246:01 pmBOI - SDF
1 stop12h 54mMultiple Airlines
Sun 7/2710:03 amSDF - BOI
2 stops34h 49mMultiple Airlines
Deal found 6/10$414
This Southwest deal was found by Cheapflights users on 6/11. 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 7/211:15 amBOI - SDF
1 stop11h 45mSouthwest
Sun 7/65:40 amSDF - BOI
1 stop6h 45mSouthwest
Deal found 6/11$417
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Fri 7/1110:45 amBOI - SDF
2 stops9h 29mUnited Airlines
Sun 7/137:00 amSDF - BOI
1 stop6h 43mUnited Airlines
Deal found 6/11$422
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/106:00 amBOI - SDF
2 stops15h 22mAlaska Airlines
Mon 9/1512:25 pmSDF - BOI
2 stops13h 34mAlaska Airlines
Deal found 6/10$508

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 June 12, 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

Fri 9/5

3:06 pm-11:00 pm

1 stop5h 54m

Louisville Intl

Mon 9/8

7:34 pm-11:58 pm

1 stop6h 24m

$332

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Fri 9/5

6:59 am-5:34 pm

1 stop8h 35m

Louisville Intl

Mon 9/8

6:12 pm-12:37 pm

1 stop20h 25m

$354

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Fri 7/11

7:48 pm-6:18 pm

2 stops20h 30m

Louisville Intl

Sun 7/13

4:31 pm-6:52 pm

2 stops28h 21m

$405

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Thu 7/24

6:01 pm-8:55 am

1 stop12h 54m

Louisville Intl

Sun 7/27

10:03 am-6:52 pm

2 stops34h 49m

$414

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Wed 7/2

11:15 am-1:00 am

1 stop11h 45m

Louisville Intl

Sun 7/6

5:40 am-10:25 am

1 stop6h 45m

$417

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Fri 7/11

10:45 am-10:14 pm

2 stops9h 29m

Louisville Intl

Sun 7/13

7:00 am-11:43 am

1 stop6h 43m

$422

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Wed 9/10

6:00 am-11:22 pm

2 stops15h 22m

Louisville Intl

Mon 9/15

12:25 pm-11:59 pm

2 stops13h 34m

$508

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Thu 9/4

9:49 pm-4:50 pm

1 stop17h 01m

$132

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Fri 9/5

1:38 pm-11:22 pm

1 stop7h 44m

$184

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Fri 9/5

8:40 am-11:56 pm

2 stops13h 16m

$189

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 12 results
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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 $299). Flying from Boise to Louisville in April is currently the most expensive (average of $369). 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 June 12, 2025.

It’s optimal to fly from Boise to Louisville in the evening. By choosing this option you can save up to 26% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Boise to Louisville?

Use this chart to determine the cheapest time to fly round-trip from Boise to Louisville. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Boise to Louisville flight should consider departing on Thursday evenings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Louisville by month

Plan your trip to Louisville by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Louisville ranges from 3.1 - 5.3 inches per month. May is typically the wettest month, when rainfall can reach 5.3 in. September is typically the driest time to visit Louisville when rainfall is around 3.1 in.

Temperature in Louisville by month

Plan your trip to Louisville by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Louisville, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 June 12, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Boise to Louisville. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • What are the cheapest airlines flying from Boise to Louisville round-trip?

    Currently priced at $332, 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 American Airlines and Spirit Airlines - these airlines can fly you to your destination from $354 and $405, respectively. Delta is 33% 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?

    $132 is the cheapest one-way deal found within the past few days, from Spirit Airlines. You may also be able to find cheap deals on American Airlines and Delta, with prices starting from $184 and $189, 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, January is the cheapest month in which you can book a flight from Boise to Louisville (average of $299). Flying from Boise to Louisville in April is currently the most expensive (average of $369). 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 Boise?

Book flights to Boise if you plan to visit one of these locations
Shepherdsville
Jeffersonville
Elizabethtown
Corydon
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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$275Average$388FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$348Average$467FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$356Average$467FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$356Average$657FlexibilityNo cancel feeOn-time69%

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