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Idaho

$154+ 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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — BOI
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
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 April 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$307
(American Airlines)

One-way from

$154
(Delta)

Popular in

September

Cheapest in

February

Average price

$426
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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One-way flight 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 April 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 April 17, 2025.

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.
Sat 5/101:58 pmSDF - GEG
1 stop9h 55mAmerican Airlines
Tue 5/201:22 pmGEG - SDF
1 stop8h 03mAmerican Airlines
Deal found 4/16$307
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 6/34:05 pmSDF - GEG
2 stops10h 33mDelta
Tue 7/12:22 pmGEG - SDF
1 stop6h 37mDelta
Deal found 4/16$312
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 5/204:05 pmSDF - BOI
2 stops10h 18mDelta
Wed 5/287:49 pmBOI - SDF
2 stops12h 19mDelta
Deal found 4/16$317
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.
Sat 5/102:00 pmSDF - GEG
2 stops12h 38mUnited Airlines
Tue 5/205:29 amGEG - SDF
2 stops11h 18mUnited Airlines
Deal found 4/16$335
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.
Sat 8/23:25 pmSDF - IDA
1 stop7h 34mUnited Airlines
Sat 8/305:00 amIDA - SDF
1 stop7h 27mUnited Airlines
Deal found 4/16$384
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/32:20 pmSDF - GEG
2 stops11h 05mSouthwest
Tue 7/11:05 pmGEG - SDF
2 stops8h 55mSouthwest
Deal found 4/16$389
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/146:25 amSDF - BOI
2 stops10h 00mSouthwest
Wed 5/218:40 amBOI - SDF
2 stops10h 00mSouthwest
Deal found 4/16$398
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.
Tue 9/166:34 amSDF - JAC
1 stop10h 47mAmerican Airlines
Tue 9/237:00 amJAC - SDF
1 stop8h 31mAmerican Airlines
Deal found 4/16$403
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/85:45 amSDF - GEG
2 stops11h 41mAlaska Airlines
Tue 5/206:00 amGEG - SDF
2 stops12h 39mAlaska Airlines
Deal found 4/17$425
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.
Wed 5/73:51 pmSDF - BOI
3 stops45h 30mMultiple Airlines
Fri 5/92:11 pmBOI - SDF
3 stops22h 29mMultiple Airlines
Deal found 4/16$431
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.
Wed 5/216:00 amSDF - BOI
1 stop8h 45mAmerican Airlines
Wed 5/281:38 pmBOI - SDF
1 stop6h 01mAmerican Airlines
Deal found 4/16$448
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.
Mon 6/163:24 pmSDF - JAC
1 stop6h 52mDelta
Thu 6/196:53 pmJAC - SDF
2 stops12h 56mDelta
Deal found 4/16$472

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 April 17, 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

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Sat 5/10

1:58 pm-8:53 pm

1 stop9h 55m

Spokane

Tue 5/20

1:22 pm-12:25 am

1 stop8h 03m

$307

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Tue 6/3

4:05 pm-11:38 pm

2 stops10h 33m

Spokane

Tue 7/1

2:22 pm-11:59 pm

1 stop6h 37m

$312

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Tue 5/20

4:05 pm-12:23 am

2 stops10h 18m

Boise Air Term. Gowen Fld

Wed 5/28

7:49 pm-10:08 am

2 stops12h 19m

$317

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Sat 5/10

2:00 pm-11:38 pm

2 stops12h 38m

Spokane

Tue 5/20

5:29 am-7:47 pm

2 stops11h 18m

$335

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Sat 8/2

3:25 pm-8:59 pm

1 stop7h 34m

Idaho Falls Fanning Field

Sat 8/30

5:00 am-2:27 pm

1 stop7h 27m

$384

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Tue 6/3

2:20 pm-10:25 pm

2 stops11h 05m

Spokane

Tue 7/1

1:05 pm-1:00 am

2 stops8h 55m

$389

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Wed 5/14

6:25 am-2:25 pm

2 stops10h 00m

Boise Air Term. Gowen Fld

Wed 5/21

8:40 am-8:40 pm

2 stops10h 00m

$398

LouisvilleJackson

SDF - JAC

SDFJAC

Louisville Intl

Tue 9/16

6:34 am-3:21 pm

1 stop10h 47m

Jackson Hole

Tue 9/23

7:00 am-5:31 pm

1 stop8h 31m

$403

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Thu 5/8

5:45 am-2:26 pm

2 stops11h 41m

Spokane

Tue 5/20

6:00 am-9:39 pm

2 stops12h 39m

$425

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Wed 5/7

3:51 pm-11:21 am

3 stops45h 30m

Boise Air Term. Gowen Fld

Fri 5/9

2:11 pm-2:40 pm

3 stops22h 29m

$431

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 19 results
1
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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, 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 $419). 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 April 17, 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 April 17, 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
9,887 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.1

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
9,887 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.1

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
4,280 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.1

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
7,916 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.1

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
8,667 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.1

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
9,887 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.1

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 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 - Spokane, Louisville Intl - Jackson Hole or Louisville Intl - Boise Air Term. Gowen Fld 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 $419). 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$300Average$407FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$323Average$542FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$337Average$622FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$371Average$416FlexibilityNo cancel feeOn-time63%

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