Louisville

$198+ 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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SDF
Jul 11 — Jul 181
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Cheap 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 11, 2026.

This Delta deal was found by Cheapflights users on 6/9. 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 8/125:30 am
BOI
-
SDF
1 stop8h 20m
Delta
Fri 8/283:25 pm
SDF
-
BOI
1 stop8h 32m
Delta
Deal found 6/9$314
This Southwest deal was found by Cheapflights users on 6/9. 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 8/122:20 pm
BOI
-
SDF
1 stop6h 40m
Southwest
Fri 8/283:20 pm
SDF
-
BOI
2 stops9h 15m
Southwest
Deal found 6/9$344
This American Airlines deal was found by Cheapflights users on 6/9. 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 10/191:53 pm
GEG
-
SDF
1 stop6h 02m
American Airlines
Mon 10/266:57 am
SDF
-
GEG
1 stop7h 38m
American Airlines
Deal found 6/9$355
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/274:45 pm
BOI
-
SDF
1 stop6h 15m
Southwest
Wed 9/3011:50 am
SDF
-
BOI
1 stop13h 30m
Southwest
Deal found 6/10$360
This Delta deal was found by Cheapflights users on 6/8. 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 7/2112:50 pm
GEG
-
SDF
1 stop8h 36m
Delta
Tue 8/47:54 pm
SDF
-
GEG
1 stop6h 15m
Delta
Deal found 6/8$375
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/215:40 am
GEG
-
SDF
1 stop8h 43m
American Airlines
Mon 8/247:03 am
SDF
-
GEG
1 stop7h 51m
American Airlines
Deal found 6/10$385
This Southwest deal was found by Cheapflights users on 6/8. 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 11/181:35 pm
GEG
-
SDF
1 stop6h 10m
Southwest
Sat 11/218:35 am
SDF
-
GEG
2 stops13h 05m
Southwest
Deal found 6/8$387
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/211:37 pm
GEG
-
SDF
1 stop5h 54m
United Airlines
Mon 8/2410:23 am
SDF
-
GEG
2 stops13h 23m
United Airlines
Deal found 6/10$390
This United Airlines deal was found by Cheapflights users on 6/9. 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 8/252:44 pm
BOI
-
SDF
1 stop5h 47m
United Airlines
Wed 8/263:25 pm
SDF
-
BOI
1 stop8h 12m
United Airlines
Deal found 6/9$393
This Delta deal was found by Cheapflights users on 6/5. 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 7/2210:48 pm
GEG
-
SDF
1 stop8h 41m
Delta
Wed 7/295:55 pm
SDF
-
GEG
1 stop8h 11m
Delta
Deal found 6/5$395
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:30 am
GEG
-
SDF
2 stops9h 00m
Southwest
Mon 8/243:20 pm
SDF
-
GEG
2 stops9h 40m
Southwest
Deal found 6/10$396
This United Airlines deal was found by Cheapflights users on 6/6. 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.
Sat 9/52:44 pm
BOI
-
SDF
1 stop5h 47m
United Airlines
Tue 9/83:25 pm
SDF
-
BOI
1 stop8h 12m
United Airlines
Deal found 6/6$401

Find 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 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$314
(Delta)

One-way from

$198
(Delta)

Popular in

March

Cheapest in

August

Average price

$520
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Louisville Intl flight deals.
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Louisville Intl flights.
From Idaho to Louisville Intl
One-way flight from Idaho to Louisville Intl
Highest demand for flights based on searches. 15% potential increase in price ($92 potential increase over avg. RT price).
Cheapest flight prices on average. 6% potential price decrease ($29 potential savings vs. average RT price).
Average for round-trip flights in June 2026

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 11, 2026.
Use the filters below to find and compare flights from Idaho to Louisville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SpokaneLouisville

GEG - SDF

GEGSDF

Spokane

Fri 8/21

5:40 am-5:23 pm

1 stop8h 43m

Louisville Intl

Mon 8/24

7:03 am-11:54 am

1 stop7h 51m

$385

SpokaneLouisville

GEG - SDF

GEGSDF

Spokane

Fri 8/21

1:37 pm-10:31 pm

1 stop5h 54m

Louisville Intl

Mon 8/24

10:23 am-8:46 pm

2 stops13h 23m

$390

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Tue 8/25

2:44 pm-10:31 pm

1 stop5h 47m

Louisville Intl

Wed 8/26

3:25 pm-9:37 pm

1 stop8h 12m

$393

SpokaneLouisville

GEG - SDF

GEGSDF

Spokane

Fri 8/21

6:30 am-6:30 pm

2 stops9h 00m

Louisville Intl

Mon 8/24

3:20 pm-10:00 pm

2 stops9h 40m

$396

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Tue 11/17

2:43 pm-9:57 pm

1 stop5h 14m

Louisville Intl

Wed 11/18

11:00 am-9:16 pm

2 stops12h 16m

$398

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Sat 9/5

2:44 pm-10:31 pm

1 stop5h 47m

Louisville Intl

Tue 9/8

3:25 pm-9:37 pm

1 stop8h 12m

$401

SpokaneLouisville

GEG - SDF

GEGSDF

Spokane

Sat 7/18

2:26 pm-11:00 pm

1 stop5h 34m

Louisville Intl

Wed 8/5

6:50 am-12:57 pm

1 stop9h 07m

$405

Idaho FallsLouisville

IDA - SDF

IDASDF

Idaho Falls Fanning Field

Wed 8/19

2:25 pm-10:31 pm

1 stop6h 06m

Louisville Intl

Sun 8/23

8:00 am-1:29 pm

1 stop7h 29m

$410

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Thu 9/3

12:10 pm-10:35 pm

2 stops8h 25m

Louisville Intl

Mon 9/7

3:20 pm-11:35 pm

2 stops10h 15m

$417

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Fri 7/24

11:10 pm-10:29 am

1 stop9h 19m

Louisville Intl

Tue 7/28

4:47 pm-9:57 pm

1 stop7h 10m

$426

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 59 resultsSorted by cheapest first
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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, August is the cheapest month in which you can book a flight from Idaho to Louisville (average of $280). Flying from Idaho to Louisville in March is currently the most expensive (average of $466). 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.

How much does it cost to fly round-trip from Idaho to Louisville?

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.

  • How long is the flight from Idaho to Louisville?

    For as low as $390, American Airlines can have you in Louisville from Idaho in 5h 54m. The distance between Idaho and Louisville is about 1720 mi. This flight may include one or multiple stops.

  • What are the most popular routes 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, August is the cheapest month in which you can book a flight from Idaho to Louisville (average of $280). Flying from Idaho to Louisville in March is currently the most expensive (average of $466). 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 Louisville?

Book flights to Louisville if you plan to visit one of these locations
Corydon
Shepherdsville
Elizabethtown
Jeffersonville
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.

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 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$268Average$475FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$268Average$510FlexibilityNo cancel feeOn-time69%
DeltaCheapest$329Average$466FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$372Average$492FlexibilityNo cancel feeOn-time63%

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