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Idaho

$156+ Cheap flights from Louisville (SDF) to Idaho

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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — BOI
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Louisville to Idaho

Cheapest flights from Louisville to Idaho
Explore the most affordable flight options available from Louisville to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This Delta deal was found by Cheapflights users on 12/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1912:37 pmSDF - JAC
2 stops10h 52mDelta
Tue 12/231:55 pmJAC - SDF
1 stop7h 08mDelta
Deal found 12/10$494
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Sat 12/208:00 amSDF - JAC
1 stop7h 24mUnited Airlines
Tue 12/232:30 pmJAC - SDF
1 stop5h 54mUnited Airlines
Deal found 12/10$519
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Wed 12/313:18 pmSDF - GEG
1 stop8h 40mUnited Airlines
Sun 1/411:59 pmGEG - SDF
1 stop7h 04mUnited Airlines
Deal found 12/10$569
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Sat 12/208:00 amSDF - JAC
1 stop7h 24mUnited Airlines
Mon 12/2210:37 amJAC - SDF
2 stops9h 53mUnited Airlines
Deal found 12/10$584
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Wed 12/313:18 pmSDF - GEG
1 stop8h 40mUnited Airlines
Sat 1/35:05 amGEG - SDF
1 stop6h 17mUnited Airlines
Deal found 12/10$639
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Wed 12/313:18 pmSDF - GEG
1 stop8h 40mUnited Airlines
Fri 1/25:05 amGEG - SDF
1 stop6h 17mUnited Airlines
Deal found 12/10$654
This Delta deal was found by Cheapflights users on 12/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:00 amSDF - GEG
1 stop7h 52mDelta
Mon 12/2910:33 pmGEG - SDF
1 stop7h 56mDelta
Deal found 12/10$723
This United Airlines deal was found by Cheapflights users on 12/11. 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 12/263:18 pmSDF - JAC
1 stop20h 37mUnited Airlines
Sun 12/282:30 pmJAC - SDF
1 stop5h 54mUnited Airlines
Deal found 12/11$747
This United Airlines deal was found by Cheapflights users on 12/11. 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 12/263:18 pmSDF - GEG
1 stop8h 40mUnited Airlines
Tue 12/305:05 amGEG - SDF
1 stop6h 17mUnited Airlines
Deal found 12/11$753
This American Airlines deal was found by Cheapflights users on 12/9. 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.
Fri 12/266:08 pmSDF - BOI
1 stop6h 51mAmerican Airlines
Sun 12/287:32 amBOI - SDF
1 stop7h 47mAmerican Airlines
Deal found 12/9$828
This Southwest deal was found by Cheapflights users on 12/9. 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.
Fri 12/266:45 amSDF - BOI
1 stop6h 50mSouthwest
Mon 12/2911:15 amBOI - SDF
1 stop6h 20mSouthwest
Deal found 12/9$912
This Southwest deal was found by Cheapflights users on 12/9. 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.
Fri 12/266:20 amSDF - BOI
2 stops12h 30mSouthwest
Sun 12/285:00 amBOI - SDF
2 stops10h 00mSouthwest
Deal found 12/9$922

Find flight deals from Louisville to Idaho

Keep the following information in mind while searching for Louisville to Idaho flight deals. Data was last updated December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$263
(Delta)

One-way from

$156
(Delta)

Popular in

December

Cheapest in

September

Average price

$778
Provider with most accurate pricing for Louisville Intl-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-Boise Air Term. Gowen Fld flights.
Search Deals
From Louisville Intl to Idaho
Search Deals
One-way flight from Louisville Intl to Idaho
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($76 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to Idaho 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 December 12, 2025.
Use the filters below to find and compare flights from Louisville to Idaho that are best for you.

Fly from

Louisville

Fly to

Idaho

Route

Depart

Return

Price

LouisvilleJackson

SDF - JAC

SDFJAC

Louisville Intl

Fri 1/9

6:00 am-1:30 pm

1 stop9h 30m

Jackson Hole

Sat 1/17

1:35 pm-11:06 pm

1 stop7h 31m

$263

LouisvilleJackson

SDF - JAC

SDFJAC

Louisville Intl

Fri 1/9

2:05 pm-8:42 pm

2 stops8h 37m

Jackson Hole

Sat 1/17

7:00 am-7:31 pm

2 stops10h 31m

$273

LouisvilleJackson

SDF - JAC

SDFJAC

Louisville Intl

Tue 1/27

9:00 am-1:21 pm

1 stop6h 21m

Jackson Hole

Wed 1/28

7:00 am-2:26 pm

1 stop5h 26m

$337

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Sat 1/24

9:00 am-3:31 pm

1 stop8h 31m

Idaho Falls Fanning Field

Wed 1/28

2:40 pm-10:24 pm

1 stop5h 44m

$349

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Tue 2/3

7:13 pm-1:53 pm

1 stop20h 40m

Boise Air Term. Gowen Fld

Tue 2/10

3:18 pm-12:32 pm

1 stop19h 14m

$355

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Wed 1/7

7:05 am-12:46 pm

1 stop7h 41m

Boise Air Term. Gowen Fld

Wed 1/14

5:30 am-4:16 pm

1 stop8h 46m

$359

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Tue 2/3

7:50 am-6:28 pm

2 stops12h 38m

Boise Air Term. Gowen Fld

Tue 2/10

1:40 pm-11:50 pm

1 stop8h 10m

$364

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Sat 2/14

3:15 pm-9:32 pm

1 stop8h 17m

Boise Air Term. Gowen Fld

Wed 2/18

7:11 am-10:37 pm

2 stops13h 26m

$396

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Wed 1/7

7:40 am-1:08 pm

1 stop7h 28m

Boise Air Term. Gowen Fld

Sun 2/8

7:20 am-5:33 pm

1 stop8h 13m

$398

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Sat 2/28

5:35 am-10:10 am

1 stop6h 35m

Boise Air Term. Gowen Fld

Fri 3/6

7:05 am-5:15 pm

1 stop8h 10m

$402

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 32 results
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Best time to book a flight from Louisville to Idaho

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

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

Currently, November is the cheapest month in which you can book a flight from Louisville to Idaho (average of $147). Flying from Louisville to Idaho in December is currently the most expensive (average of $305). 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 SDF to ID?

Find hourly flight availability from Louisville to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 46% on flights from Louisville to Idaho by exploring options for tickets in the evening.

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. 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 Idaho. Reviews last updated December 12, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Louisville to Idaho to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,253 reviews

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

7.9

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
7.9
Good
4,253 reviews
Southwest
7.9
Good
4,253 reviews

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

7.9

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,008 reviews
Southwest
7.9
Good
4,253 reviews

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

7.9

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,095 reviews
Southwest
7.9
Good
4,253 reviews

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

7.9

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,050 reviews
Southwest
7.9
Good
4,253 reviews

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

7.9

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Louisville to Idaho. 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 from for flights from Louisville to Idaho?

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

  • How long is the flight from Louisville to Idaho?

    A quick flight from Louisville to Idaho can take about 8h 37m. Delta provides one of the quickest options available for as low as $273. The distance from Louisville to Idaho is about 1352 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    One-way options have recently been found by users for as low as $134 on Delta. Other airlines that offer cheap prices include Southwest from $153 and United Airlines from $174 one-way.

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

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

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Louisville to Idaho (average of $147). Flying from Louisville to Idaho in December is currently the most expensive (average of $305). 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

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Top 4 airlines flying from Louisville to Idaho

Discover the top 4 airlines that operate flights from Louisville to Idaho. 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$196Average$411FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$287Average$445FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$343Average$564FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$346Average$428FlexibilityNo cancel feeOn-time63%

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