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$144+ 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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SDF
Apr 7 — Apr 141
Mon 4/7
Mon 4/14
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 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$327
(Delta)

One-way from

$144
(Mytrip)

Popular in

March

Cheapest in

August

Average price

$631
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. 20% potential increase in price ($131 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 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 2, 2025.

This Delta deal was found by Cheapflights users on 4/1. 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.
Tue 6/31:18 pmBOI - SDF
1 stop8h 47mDelta
Tue 6/177:44 pmSDF - BOI
1 stop6h 15mDelta
Deal found 4/1$327
This Delta deal was found by Cheapflights users on 3/31. 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 stop8h 26mDelta
Tue 6/36:56 pmSDF - GEG
1 stop7h 19mDelta
Deal found 3/31$327
This Southwest deal was found by Cheapflights users on 3/30. 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.
Fri 6/62:50 pmBOI - SDF
1 stop7h 35mSouthwest
Mon 6/98:35 pmSDF - BOI
1 stop5h 55mSouthwest
Deal found 3/30$380
This United Airlines deal was found by Cheapflights users on 3/31. 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 4/1512:06 pmBOI - SDF
1 stop6h 23mUnited Airlines
Sat 4/195:51 pmSDF - BOI
1 stop6h 58mUnited Airlines
Deal found 3/31$417
This United Airlines deal was found by Cheapflights users on 4/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/161:40 pmGEG - SDF
1 stop5h 35mUnited Airlines
Sun 4/203:25 pmSDF - GEG
1 stop8h 25mUnited Airlines
Deal found 4/1$432
This American Airlines deal was found by Cheapflights users on 4/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/297:00 amIDA - SDF
1 stop8h 50mAmerican Airlines
Wed 6/41:58 pmSDF - IDA
1 stop9h 19mAmerican Airlines
Deal found 4/1$439
This Alaska Airlines deal was found by Cheapflights users on 3/31. 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 56mAlaska Airlines
Mon 9/156:34 amSDF - BOI
2 stops13h 36mAlaska Airlines
Deal found 3/31$482
This American Airlines deal was found by Cheapflights users on 3/31. 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 4/141:23 pmBOI - SDF
1 stop8h 33mAmerican Airlines
Fri 4/187:20 amSDF - BOI
1 stop7h 13mAmerican Airlines
Deal found 3/31$517
This United Airlines deal was found by Cheapflights users on 4/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/295:58 pmIDA - SDF
2 stops21h 21mUnited Airlines
Wed 6/48:55 amSDF - IDA
2 stops14h 03mUnited Airlines
Deal found 4/1$624
This Mytrip deal was found by Cheapflights users on 3/31. 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 4/41:31 pmBOI - SDF
2 stops27h 12mSpirit Airlines
Mon 4/79:32 pmSDF - BOI
3 stops41h 25mSpirit Airlines
Deal found 3/31$652
This Mytrip deal was found by Cheapflights users on 4/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/41:31 pmBOI - SDF
2 stops27h 12mMultiple Airlines
Fri 4/115:45 amSDF - BOI
3 stops18h 02mMultiple Airlines
Deal found 4/1$680
This American Airlines deal was found by Cheapflights users on 4/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1012:53 pmJAC - SDF
1 stop7h 12mAmerican Airlines
Sun 4/136:00 amSDF - JAC
1 stop8h 13mAmerican Airlines
Deal found 4/1$710

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 2, 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-12:05 am

1 stop8h 47m

Louisville Intl

Tue 6/17

7:44 pm-11:59 pm

1 stop6h 15m

$327

SpokaneLouisville

GEG - SDF

GEGSDF

Spokane

Fri 5/30

12:39 pm-12:05 am

1 stop8h 26m

Louisville Intl

Tue 6/3

6:56 pm-11:15 pm

1 stop7h 19m

$327

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Fri 6/6

2:50 pm-12:25 am

1 stop7h 35m

Louisville Intl

Mon 6/9

8:35 pm-12:30 am

1 stop5h 55m

$380

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Tue 4/15

12:06 pm-8:29 pm

1 stop6h 23m

Louisville Intl

Sat 4/19

5:51 pm-10:49 pm

1 stop6h 58m

$417

SpokaneLouisville

GEG - SDF

GEGSDF

Spokane

Wed 4/16

1:40 pm-10:15 pm

1 stop5h 35m

Louisville Intl

Sun 4/20

3:25 pm-8:50 pm

1 stop8h 25m

$432

Idaho FallsLouisville

IDA - SDF

IDASDF

Idaho Falls Fanning Field

Thu 5/29

7:00 am-5:50 pm

1 stop8h 50m

Louisville Intl

Wed 6/4

1:58 pm-9:17 pm

1 stop9h 19m

$439

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Thu 6/5

1:15 pm-10:59 pm

1 stop7h 44m

Louisville Intl

Sat 6/14

4:45 pm-10:29 pm

1 stop7h 44m

$468

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Wed 9/10

6:00 am-9:41 pm

2 stops13h 41m

Louisville Intl

Mon 9/15

6:34 am-3:49 pm

2 stops11h 15m

$482

Idaho FallsLouisville

IDA - SDF

IDASDF

Idaho Falls Fanning Field

Thu 5/29

5:58 pm-5:19 pm

2 stops21h 21m

Louisville Intl

Wed 6/4

8:55 am-8:58 pm

2 stops14h 03m

$624

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Wed 4/23

1:52 pm-10:17 pm

2 stops30h 25m

$144

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 15 results
1
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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 April 2, 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 2, 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
9,823 reviews

Food

7.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,823 reviews
Alaska Airlines
8.0
Very good
9,823 reviews

Food

7.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,275 reviews
Alaska Airlines
8.0
Very good
9,823 reviews

Food

7.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,899 reviews
Alaska Airlines
8.0
Very good
9,823 reviews

Food

7.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,615 reviews
Alaska Airlines
8.0
Very good
9,823 reviews

Food

7.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,823 reviews

Food

7.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 Spirit Airlines. According to our data, you can fly for as low as $144. Users have also found prices from $172 and $174 on American Airlines and Southwest, 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 Hailey Sun Valley-Friedman - 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

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 April 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$278Average$414FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$342Average$436FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$356Average$517FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$376Average$588FlexibilityNo cancel feeOn-time69%

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