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$154+ 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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SDF
May 6 — May 131
Tue 5/6
Tue 5/13
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 May 1, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$307
(American Airlines)

One-way from

$154
(American Airlines)

Popular in

March

Cheapest in

August

Average price

$467
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Louisville Intl flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Louisville Intl flights.
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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. 19% potential increase in price ($123 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 1, 2025.

This American Airlines deal was found by Cheapflights users on 4/30. 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 6/31:38 pmBOI - SDF
1 stop6h 01mAmerican Airlines
Tue 6/177:00 amSDF - BOI
1 stop7h 44mAmerican Airlines
Deal found 4/30$307
This Delta deal was found by Cheapflights users on 4/29. 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 6/32:47 pmBOI - SDF
1 stop7h 05mDelta
Tue 6/176:00 amSDF - BOI
2 stops9h 55mDelta
Deal found 4/29$312
This Delta deal was found by Cheapflights users on 5/1. 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 5/317:00 amGEG - SDF
1 stop5h 43mDelta
Wed 6/46:56 pmSDF - GEG
1 stop7h 19mDelta
Deal found 5/1$325
This American Airlines deal was found by Cheapflights users on 4/30. 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 8/217:00 amIDA - SDF
1 stop8h 31mAmerican Airlines
Mon 8/252:18 pmSDF - IDA
1 stop9h 01mAmerican Airlines
Deal found 4/30$354
This United Airlines deal was found by Cheapflights users on 4/30. 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 8/215:00 amIDA - SDF
1 stop7h 34mUnited Airlines
Mon 8/2510:55 amSDF - IDA
2 stops11h 59mUnited Airlines
Deal found 4/30$379
This American Airlines deal was found by Cheapflights users on 4/30. 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 9/251:39 pmGEG - SDF
1 stop6h 24mAmerican Airlines
Sun 10/56:34 amSDF - GEG
1 stop9h 01mAmerican Airlines
Deal found 4/30$380
This Southwest deal was found by Cheapflights users on 4/30. 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.
Sun 6/14:50 pmBOI - SDF
1 stop6h 00mSouthwest
Wed 6/44:10 pmSDF - BOI
2 stops9h 45mSouthwest
Deal found 4/30$395
This United Airlines deal was found by Cheapflights users on 4/30. 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 6/132:50 pmJAC - SDF
1 stop5h 37mUnited Airlines
Sat 6/212:05 pmSDF - JAC
1 stop6h 57mUnited Airlines
Deal found 4/30$409
This Mytrip deal was found by Cheapflights users on 4/30. 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.
Sun 6/16:50 pmBOI - SDF
3 stops39h 13mMultiple Airlines
Wed 6/42:07 pmSDF - BOI
3 stops47h 14mMultiple Airlines
Deal found 4/30$470
This American Airlines deal was found by Cheapflights users on 4/29. 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 6/133:29 pmJAC - SDF
1 stop16h 05mAmerican Airlines
Sat 6/212:09 pmSDF - JAC
1 stop8h 46mAmerican Airlines
Deal found 4/29$486
This United Airlines deal was found by Cheapflights users on 4/30. 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 5/151:40 pmGEG - SDF
1 stop5h 32mUnited Airlines
Mon 5/193:25 pmSDF - GEG
2 stops11h 13mUnited Airlines
Deal found 4/30$522
This Delta deal was found by Cheapflights users on 4/29. 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 6/136:53 pmJAC - SDF
2 stops12h 56mDelta
Wed 6/1812:53 pmSDF - JAC
2 stops10h 05mDelta
Deal found 4/29$529

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 May 1, 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

Tue 6/3

1:38 pm-9:39 pm

1 stop6h 01m

Louisville Intl

Tue 6/17

7:00 am-12:44 pm

1 stop7h 44m

$307

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Tue 6/3

2:47 pm-11:52 pm

1 stop7h 05m

Louisville Intl

Tue 6/17

6:00 am-1:55 pm

2 stops9h 55m

$312

SpokaneLouisville

GEG - SDF

GEGSDF

Spokane

Sat 5/31

7:00 am-3:43 pm

1 stop5h 43m

Louisville Intl

Wed 6/4

6:56 pm-11:15 pm

1 stop7h 19m

$325

Idaho FallsLouisville

IDA - SDF

IDASDF

Idaho Falls Fanning Field

Thu 8/21

7:00 am-5:31 pm

1 stop8h 31m

Louisville Intl

Mon 8/25

2:18 pm-9:19 pm

1 stop9h 01m

$354

Idaho FallsLouisville

IDA - SDF

IDASDF

Idaho Falls Fanning Field

Thu 8/21

5:00 am-2:34 pm

1 stop7h 34m

Louisville Intl

Mon 8/25

10:55 am-8:54 pm

2 stops11h 59m

$379

SpokaneLouisville

GEG - SDF

GEGSDF

Spokane

Thu 9/25

1:39 pm-11:03 pm

1 stop6h 24m

Louisville Intl

Sun 10/5

6:34 am-12:35 pm

1 stop9h 01m

$380

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Sun 6/1

4:50 pm-12:50 am

1 stop6h 00m

Louisville Intl

Wed 6/4

4:10 pm-11:55 pm

2 stops9h 45m

$395

JacksonLouisville

JAC - SDF

JACSDF

Jackson Hole

Fri 6/13

2:50 pm-10:27 pm

1 stop5h 37m

Louisville Intl

Sat 6/21

2:05 pm-7:02 pm

1 stop6h 57m

$409

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Sun 6/1

6:50 pm-12:03 pm

3 stops39h 13m

Louisville Intl

Wed 6/4

2:07 pm-11:21 am

3 stops47h 14m

$470

JacksonLouisville

JAC - SDF

JACSDF

Jackson Hole

Fri 6/13

3:29 pm-9:34 am

1 stop16h 05m

Louisville Intl

Sat 6/21

2:09 pm-8:55 pm

1 stop8h 46m

$486

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 24 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 May 1, 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 May 1, 2025.
To help decide which airline to fly from Idaho to Louisville, see what other customers have to say about Southwest, Delta and United Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,294 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.6

Crew

8.6

Comfort

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Southwest
8.0
Very good
4,294 reviews
Southwest
8.0
Very good
4,294 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.6

Crew

8.6

Comfort

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Delta
8.0
Very good
7,934 reviews
Southwest
8.0
Very good
4,294 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.6

Crew

8.6

Comfort

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
United Airlines
7.4
Good
8,696 reviews
Southwest
8.0
Very good
4,294 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.6

Crew

8.6

Comfort

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,294 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.6

Crew

8.6

Comfort

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

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 $154. Users have also found prices from $159 and $369 on Delta and Southwest, respectively.

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

    Most travelers choose Boise Air Term. Gowen Fld - Louisville Intl, Jackson Hole - Louisville Intl or Spokane - 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
Jeffersonville
Corydon
Elizabethtown
Bardstown

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Alternative routes for Idaho to Louisville

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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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$278Average$408FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$348Average$467FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$356Average$516FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$376Average$584FlexibilityNo cancel feeOn-time69%

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