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$190+ Cheap flights from Idaho to Louisville (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 7/23. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SDF
Jun 28 — Jul 51
Sat 6/28
Sat 7/5
1 adult, Economy
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Cheap flight deals from Idaho to Louisville

Keep the following information in mind while searching for Idaho to Louisville flight deals. Data was last updated June 23, 2025.

Round-trip from

$272
(Mytrip)

One-way from

$190
(American Airlines)

Popular in

March

Cheapest in

August

Average price

$545
From Idaho to Louisville Intl
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One-way flight from Idaho to Louisville Intl
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Highest demand for flights based on searches. 17% potential increase in price ($104 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 Idaho to Louisville

Cheapest flights from Idaho to Louisville
Explore the most affordable flight options available from Idaho to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 23, 2025.

This Mytrip deal was found by Cheapflights users on 6/23. 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.
Mon 9/89:49 pmBOI - SDF
2 stops17h 25mSpirit Airlines
Thu 9/113:43 pmSDF - BOI
1 stop7h 01mSpirit Airlines
Deal found 6/23$272
This Delta deal was found by Cheapflights users on 6/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/317:30 amSUN - SDF
2 stops9h 31mDelta
Tue 11/412:40 pmSDF - SUN
2 stops11h 19mDelta
Deal found 6/20$324
This American Airlines deal was found by Cheapflights users on 6/23. 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.
Mon 9/81:38 pmBOI - SDF
1 stop8h 02mAmerican Airlines
Thu 9/117:00 amSDF - BOI
1 stop7h 27mAmerican Airlines
Deal found 6/23$337
This Delta deal was found by Cheapflights users on 6/21. 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 8/166:00 amBOI - SDF
2 stops7h 43mDelta
Wed 8/207:34 pmSDF - BOI
1 stop6h 22mDelta
Deal found 6/21$352
This American Airlines deal was found by Cheapflights users on 6/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/111:30 pmGEG - SDF
1 stop6h 29mAmerican Airlines
Sun 9/147:00 amSDF - GEG
1 stop8h 44mAmerican Airlines
Deal found 6/22$363
This United Airlines deal was found by Cheapflights users on 6/21. 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 10/312:29 pmSUN - SDF
1 stop6h 01mUnited Airlines
Tue 11/48:00 amSDF - SUN
1 stop7h 44mUnited Airlines
Deal found 6/21$379
This Southwest deal was found by Cheapflights users on 6/21. 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 8/84:30 pmBOI - SDF
1 stop5h 10mSouthwest
Tue 8/1211:25 amSDF - BOI
1 stop8h 25mSouthwest
Deal found 6/21$382
This American Airlines deal was found by Cheapflights users on 6/21. 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 10/912:46 pmIDA - SDF
1 stop8h 17mAmerican Airlines
Mon 10/205:56 amSDF - IDA
1 stop8h 16mAmerican Airlines
Deal found 6/21$395
This Southwest deal was found by Cheapflights users on 6/22. 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 9/186:10 amGEG - SDF
2 stops13h 40mSouthwest
Sun 9/216:20 amSDF - GEG
1 stop6h 00mSouthwest
Deal found 6/22$400
This Mytrip deal was found by Cheapflights users on 6/22. 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 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 7/274:31 pmSDF - BOI
2 stops28h 21mMultiple Airlines
Deal found 6/22$418
This American Airlines deal was found by Cheapflights users on 6/21. 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 6/2511:09 amJAC - SDF
1 stop9h 08mAmerican Airlines
Mon 6/3010:04 amSDF - JAC
1 stop7h 21mAmerican Airlines
Deal found 6/21$469
This Delta deal was found by Cheapflights users on 6/23. 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.
Wed 6/256:53 pmJAC - SDF
2 stops11h 52mDelta
Mon 6/301:44 pmSDF - JAC
1 stop8h 32mDelta
Deal found 6/23$474

Cheapflights Fare Finder

Customize your flight search to find flights from Idaho 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 23, 2025.
Use the filters below to find and compare flights from Idaho to Louisville that are best for you.

Fly from

Idaho

Fly to

Louisville

Route

Depart

Return

Price

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Mon 9/8

9:49 pm-5:14 pm

2 stops17h 25m

Louisville Intl

Thu 9/11

3:43 pm-8:44 pm

1 stop7h 01m

$272

HaileyLouisville

SUN - SDF

SUNSDF

Hailey Sun Valley-Friedman

Fri 10/31

7:30 am-7:01 pm

2 stops9h 31m

Louisville Intl

Tue 11/4

12:40 pm-9:59 pm

2 stops11h 19m

$324

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Mon 9/8

1:38 pm-11:40 pm

1 stop8h 02m

Louisville Intl

Thu 9/11

7:00 am-12:27 pm

1 stop7h 27m

$337

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Sat 8/16

6:00 am-3:43 pm

2 stops7h 43m

Louisville Intl

Wed 8/20

7:34 pm-11:56 pm

1 stop6h 22m

$352

SpokaneLouisville

GEG - SDF

GEGSDF

Spokane

Thu 9/11

1:30 pm-10:59 pm

1 stop6h 29m

Louisville Intl

Sun 9/14

7:00 am-12:44 pm

1 stop8h 44m

$363

HaileyLouisville

SUN - SDF

SUNSDF

Hailey Sun Valley-Friedman

Fri 10/31

2:29 pm-10:30 pm

1 stop6h 01m

Louisville Intl

Tue 11/4

8:00 am-1:44 pm

1 stop7h 44m

$379

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Fri 8/8

4:30 pm-11:40 pm

1 stop5h 10m

Louisville Intl

Tue 8/12

11:25 am-5:50 pm

1 stop8h 25m

$382

Idaho FallsLouisville

IDA - SDF

IDASDF

Idaho Falls Fanning Field

Thu 10/9

12:46 pm-11:03 pm

1 stop8h 17m

Louisville Intl

Mon 10/20

5:56 am-12:12 pm

1 stop8h 16m

$395

SpokaneLouisville

GEG - SDF

GEGSDF

Spokane

Thu 9/18

6:10 am-10:50 pm

2 stops13h 40m

Louisville Intl

Sun 9/21

6:20 am-9:20 am

1 stop6h 00m

$400

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

4:31 pm-6:52 pm

2 stops28h 21m

$418

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/22

Showing 1-10 of 26 results
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Best time to book a flight from Idaho to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from Idaho 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 Idaho to Louisville

What is the cheapest month to book a flight from Idaho to Louisville?

Currently, January is the cheapest month in which you can book a flight from Idaho to Louisville (average of $299). Flying from Idaho 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 ID to SDF?

Find hourly flight availability from Idaho 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 23, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho to Louisville as you normally would.

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 23, 2025.
To help decide which airline to fly from Idaho to Louisville, see what other customers have to say about Alaska Airlines, Southwest and Delta. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.1

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

Comfort

7.8

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.1

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
4,278 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.1

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
7,965 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.1

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
8,830 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.1

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

Comfort

7.8

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.1

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 Idaho to Louisville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Louisville from Idaho?

    Louisville Intl (SDF), located 5.3 mi from the city center, is the airport you fly into when you book flights from Idaho to Louisville.

  • What are the cheapest airlines to fly from Idaho to Louisville one-way?

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $190. Users have also found prices from $195 and $219 on Southwest and Sun Country Air, respectively.

  • What are the most popular routes from Idaho to Louisville?

    Most travelers choose Boise Air Term. Gowen Fld - Louisville Intl, Spokane - Louisville Intl or Idaho Falls Fanning Field - Louisville Intl when deciding on the best route from Idaho to Louisville.

  • Can I find deals for flights from Idaho to Louisville that include hotel bookings?

    Yes. In addition to deals on Idaho to Louisville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho to Louisville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho to Louisville.

  • Can I find deals for business class flights from Idaho to Louisville?

    Yes. Cheapflights offers flight deals from Idaho 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 Idaho to Louisville?

    Currently, January is the cheapest month in which you can book a flight from Idaho to Louisville (average of $299). Flying from Idaho 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 Idaho?

Book flights to Idaho if you plan to visit one of these locations
Shepherdsville
Jeffersonville
Elizabethtown
Corydon
Bardstown

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Alternative routes for Idaho to Louisville

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Idaho to Louisville

Discover the top 4 airlines that operate flights from Idaho 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 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$275Average$410FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$346Average$453FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$348Average$467FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$356Average$615FlexibilityNo cancel feeOn-time69%

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