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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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SDF
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
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 April 17, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$325
(Delta)

One-way from

$154
(Delta)

Popular in

March

Cheapest in

August

Average price

$580
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 April 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 April 17, 2025.

This Delta deal was found by Cheapflights users on 4/16. 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 6/31:18 pmBOI - SDF
1 stop7h 25mDelta
Tue 6/177:06 amSDF - BOI
1 stop7h 30mDelta
Deal found 4/16$325
This Delta deal was found by Cheapflights users on 4/17. 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.
Fri 5/3012:39 pmGEG - SDF
1 stop7h 04mDelta
Wed 6/46:56 pmSDF - GEG
1 stop7h 19mDelta
Deal found 4/17$327
This American Airlines deal was found by Cheapflights users on 4/16. 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 8/157:00 amJAC - SDF
1 stop8h 37mAmerican Airlines
Sat 8/236:34 amSDF - JAC
1 stop7h 54mAmerican Airlines
Deal found 4/16$430
This Mytrip deal was found by Cheapflights users on 4/16. 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.
Fri 5/1612:16 pmBOI - SDF
2 stops24h 24mMultiple Airlines
Fri 5/239:55 amSDF - BOI
3 stops29h 55mMultiple Airlines
Deal found 4/16$461
This American Airlines deal was found by Cheapflights users on 4/16. 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 5/151:38 pmBOI - SDF
1 stop8h 45mAmerican Airlines
Mon 5/196:00 amSDF - BOI
1 stop8h 45mAmerican Airlines
Deal found 4/16$470
This American Airlines deal was found by Cheapflights users on 4/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/241:51 pmIDA - SDF
1 stop6h 56mAmerican Airlines
Tue 7/14:45 pmSDF - IDA
1 stop6h 50mAmerican Airlines
Deal found 4/17$489
This United Airlines deal was found by Cheapflights users on 4/17. 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.
Fri 5/21:40 pmGEG - SDF
1 stop5h 32mUnited Airlines
Tue 5/68:00 amSDF - GEG
1 stop7h 38mUnited Airlines
Deal found 4/17$517
This United Airlines deal was found by Cheapflights users on 4/16. 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 8/158:00 amJAC - SDF
2 stops12h 45mUnited Airlines
Sat 8/233:30 pmSDF - JAC
1 stop7h 32mUnited Airlines
Deal found 4/16$525
This United Airlines deal was found by Cheapflights users on 4/17. 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.
Tue 6/245:55 pmIDA - SDF
2 stops13h 38mUnited Airlines
Tue 7/13:25 pmSDF - IDA
1 stop7h 34mUnited Airlines
Deal found 4/17$535
This United Airlines deal was found by Cheapflights users on 4/17. 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.
Sun 10/127:00 amSUN - SDF
1 stop5h 32mUnited Airlines
Sat 11/19:05 amSDF - SUN
1 stop6h 39mUnited Airlines
Deal found 4/17$578
This Alaska Airlines deal was found by Cheapflights users on 4/16. 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 9/108:00 amBOI - SDF
2 stops11h 41mAlaska Airlines
Mon 9/156:34 amSDF - BOI
2 stops11h 15mAlaska Airlines
Deal found 4/16$598
This Delta deal was found by Cheapflights users on 4/17. 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.
Fri 6/136:53 pmJAC - SDF
2 stops12h 56mDelta
Sun 6/223:24 pmSDF - JAC
1 stop6h 52mDelta
Deal found 4/17$603

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 April 17, 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

1:18 pm-10:43 pm

1 stop7h 25m

Louisville Intl

Tue 6/17

7:06 am-12:36 pm

1 stop7h 30m

$325

SpokaneLouisville

GEG - SDF

GEGSDF

Spokane

Fri 5/30

12:39 pm-10:43 pm

1 stop7h 04m

Louisville Intl

Wed 6/4

6:56 pm-11:15 pm

1 stop7h 19m

$327

JacksonLouisville

JAC - SDF

JACSDF

Jackson Hole

Fri 8/15

7:00 am-5:37 pm

1 stop8h 37m

Louisville Intl

Sat 8/23

6:34 am-12:28 pm

1 stop7h 54m

$430

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Fri 5/16

12:16 pm-2:40 pm

2 stops24h 24m

Louisville Intl

Fri 5/23

9:55 am-1:50 pm

3 stops29h 55m

$461

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Thu 5/15

1:38 pm-12:23 am

1 stop8h 45m

Louisville Intl

Mon 5/19

6:00 am-12:45 pm

1 stop8h 45m

$470

Idaho FallsLouisville

IDA - SDF

IDASDF

Idaho Falls Fanning Field

Tue 6/24

1:51 pm-10:47 pm

1 stop6h 56m

Louisville Intl

Tue 7/1

4:45 pm-9:35 pm

1 stop6h 50m

$489

SpokaneLouisville

GEG - SDF

GEGSDF

Spokane

Fri 5/2

1:40 pm-10:12 pm

1 stop5h 32m

Louisville Intl

Tue 5/6

8:00 am-12:38 pm

1 stop7h 38m

$517

JacksonLouisville

JAC - SDF

JACSDF

Jackson Hole

Fri 8/15

8:00 am-10:45 pm

2 stops12h 45m

Louisville Intl

Sat 8/23

3:30 pm-9:02 pm

1 stop7h 32m

$525

Idaho FallsLouisville

IDA - SDF

IDASDF

Idaho Falls Fanning Field

Tue 6/24

5:55 pm-9:33 am

2 stops13h 38m

Louisville Intl

Tue 7/1

3:25 pm-8:59 pm

1 stop7h 34m

$535

HaileyLouisville

SUN - SDF

SUNSDF

Hailey Sun Valley-Friedman

Sun 10/12

7:00 am-2:32 pm

1 stop5h 32m

Louisville Intl

Sat 11/1

9:05 am-1:44 pm

1 stop6h 39m

$578

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 18 results
1
2

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 April 17, 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 April 17, 2025.
To help decide which airline to fly from Idaho to Louisville, see what other customers have to say about Alaska Airlines, 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.
Alaska Airlines
8.0
Very good
9,887 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,887 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,916 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,667 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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 Delta. According to our data, you can fly for as low as $154. Users have also found prices from $172 and $261 on American Airlines and United Airlines, 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 Jackson Hole - 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$278Average$414FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$348Average$467FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$356Average$516FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$376Average$588FlexibilityNo cancel feeOn-time69%

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