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Idaho

$269+ Cheap flights from Louisville (SDF) to Idaho

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — BOI
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap flight deals from Louisville to Idaho

Keep the following information in mind while searching for Louisville to Idaho flight deals. Data was last updated May 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$269
(American Airlines)

Popular in

September

Cheapest in

February

Average price

$415
Provider with most accurate pricing for Louisville Intl-Boise Air Term. Gowen Fld flight deals.
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Provider most trusted by Cheapflights users for Louisville Intl-Boise Air Term. Gowen Fld flights.
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From Louisville Intl to Idaho
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Highest demand for flights based on searches. 11% potential increase in price ($60 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($27 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 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 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 8/126:45 amSDF - IDA
1 stop7h 25mAmerican Airlines
Tue 8/197:00 amIDA - SDF
1 stop7h 24mAmerican Airlines
Deal found 4/30$269
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/67:00 amSDF - GEG
1 stop6h 36mDelta
Sat 8/911:41 amGEG - SDF
1 stop8h 47mDelta
Deal found 4/30$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 5/297:05 amSDF - JAC
1 stop9h 16mAmerican Airlines
Mon 6/23:02 pmJAC - SDF
1 stop7h 23mAmerican Airlines
Deal found 4/30$329
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.
Fri 5/307:05 amSDF - GEG
1 stop8h 20mAmerican Airlines
Mon 6/21:22 pmGEG - SDF
1 stop8h 03mAmerican Airlines
Deal found 4/30$345
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/56:05 amSDF - BOI
1 stop6h 54mDelta
Mon 7/1411:40 pmBOI - SDF
1 stop8h 08mDelta
Deal found 4/30$352
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.
Tue 8/126:00 amSDF - IDA
2 stops13h 22mUnited Airlines
Tue 8/195:00 amIDA - SDF
1 stop7h 34mUnited Airlines
Deal found 4/30$354
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/103:24 pmSDF - JAC
1 stop6h 52mDelta
Tue 6/176:53 pmJAC - SDF
2 stops12h 56mDelta
Deal found 4/30$354
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.
Sat 7/56:25 amSDF - BOI
1 stop6h 05mSouthwest
Sat 7/1210:50 amBOI - SDF
2 stops10h 10mSouthwest
Deal found 4/30$357
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 5/168:00 amSDF - JAC
1 stop7h 16mUnited Airlines
Tue 5/202:35 pmJAC - SDF
1 stop5h 37mUnited Airlines
Deal found 4/30$369
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.
Sat 7/57:44 amSDF - BOI
1 stop8h 57mAmerican Airlines
Sat 7/1211:44 amBOI - SDF
1 stop9h 00mAmerican Airlines
Deal found 4/30$372
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.
Thu 5/158:19 pmSDF - BOI
2 stops17h 02mSpirit Airlines
Mon 5/1912:16 pmBOI - SDF
2 stops21h 47mSpirit Airlines
Deal found 4/30$401
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.
Tue 7/155:40 amSDF - GEG
1 stop6h 35mSouthwest
Sun 7/207:10 amGEG - SDF
1 stop8h 05mSouthwest
Deal found 4/30$408

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 May 1, 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

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Tue 8/12

6:45 am-12:10 pm

1 stop7h 25m

Idaho Falls Fanning Field

Tue 8/19

7:00 am-4:24 pm

1 stop7h 24m

$269

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Wed 8/6

7:00 am-10:36 am

1 stop6h 36m

Spokane

Sat 8/9

11:41 am-11:28 pm

1 stop8h 47m

$325

LouisvilleJackson

SDF - JAC

SDFJAC

Louisville Intl

Thu 5/29

7:05 am-2:21 pm

1 stop9h 16m

Jackson Hole

Mon 6/2

3:02 pm-12:25 am

1 stop7h 23m

$329

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Fri 5/30

7:05 am-12:25 pm

1 stop8h 20m

Spokane

Mon 6/2

1:22 pm-12:25 am

1 stop8h 03m

$345

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Sat 7/5

6:05 am-10:59 am

1 stop6h 54m

Boise Air Term. Gowen Fld

Mon 7/14

11:40 pm-9:48 am

1 stop8h 08m

$352

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Tue 8/12

6:00 am-5:22 pm

2 stops13h 22m

Idaho Falls Fanning Field

Tue 8/19

5:00 am-2:34 pm

1 stop7h 34m

$354

LouisvilleJackson

SDF - JAC

SDFJAC

Louisville Intl

Tue 6/10

3:24 pm-8:16 pm

1 stop6h 52m

Jackson Hole

Tue 6/17

6:53 pm-9:49 am

2 stops12h 56m

$354

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Sat 7/5

6:25 am-10:30 am

1 stop6h 05m

Boise Air Term. Gowen Fld

Sat 7/12

10:50 am-11:00 pm

2 stops10h 10m

$357

LouisvilleJackson

SDF - JAC

SDFJAC

Louisville Intl

Fri 5/16

8:00 am-1:16 pm

1 stop7h 16m

Jackson Hole

Tue 5/20

2:35 pm-10:12 pm

1 stop5h 37m

$369

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Sat 7/5

7:44 am-2:41 pm

1 stop8h 57m

Boise Air Term. Gowen Fld

Sat 7/12

11:44 am-10:44 pm

1 stop9h 00m

$372

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 20 results
1
2

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, October is the cheapest month in which you can book a flight from Louisville to Idaho (average of $314). Flying from Louisville to Idaho in June is currently the most expensive (average of $406). 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 May 1, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Louisville to Idaho as you normally would.

Rainfall in Idaho by month

Plan your trip to Idaho by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Idaho ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Idaho when rainfall is around 0.2 in.

Temperature in Idaho by month

Plan your trip to Idaho by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Idaho, 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 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

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 May 1, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Louisville to Idaho to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,972 reviews

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.1

Entertainment

7.1

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
9,972 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.1

Entertainment

7.1

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
4,293 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.1

Entertainment

7.1

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
7,934 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.1

Entertainment

7.1

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
8,696 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.1

Entertainment

7.1

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
9,972 reviews

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.1

Entertainment

7.1

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 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.

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

    Most travelers choose Louisville Intl - Boise Air Term. Gowen Fld, Louisville Intl - Jackson Hole 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, October is the cheapest month in which you can book a flight from Louisville to Idaho (average of $314). Flying from Louisville to Idaho in June is currently the most expensive (average of $406). 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$300Average$407FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$323Average$542FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$324Average$598FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$371Average$416FlexibilityNo cancel feeOn-time63%

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