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$259+ 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
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$343
(American Airlines)

One-way from

$259
(American Airlines)

Popular in

September

Cheapest in

February

Average price

$381
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. 4% potential increase in price ($22 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in February 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 February 20, 2025.

This American Airlines deal was found by Cheapflights users on 2/19. 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 4/237:20 amSDF - BOI
1 stop7h 13mAmerican Airlines
Mon 4/281:23 pmBOI - SDF
1 stop6h 42mAmerican Airlines
Deal found 2/19$343
This Delta deal was found by Cheapflights users on 2/19. 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 4/236:00 amSDF - BOI
2 stops10h 30mDelta
Mon 4/282:15 pmBOI - SDF
1 stop7h 44mDelta
Deal found 2/19$348
This American Airlines deal was found by Cheapflights users on 2/20. 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 5/87:05 amSDF - GEG
1 stop8h 20mAmerican Airlines
Tue 5/201:22 pmGEG - SDF
1 stop8h 04mAmerican Airlines
Deal found 2/20$368
This Mytrip deal was found by Cheapflights users on 2/19. 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 3/73:25 pmSDF - BOI
2 stops23h 07mMultiple Airlines
Tue 3/111:31 pmBOI - SDF
2 stops26h 50mMultiple Airlines
Deal found 2/19$393
This United Airlines deal was found by Cheapflights users on 2/20. 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 6/33:29 pmSDF - JAC
1 stop7h 13mUnited Airlines
Mon 6/91:46 pmJAC - SDF
1 stop6h 41mUnited Airlines
Deal found 2/20$406
This American Airlines deal was found by Cheapflights users on 2/19. 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 3/75:42 amSDF - JAC
1 stop8h 19mAmerican Airlines
Tue 3/1112:53 pmJAC - SDF
1 stop6h 57mAmerican Airlines
Deal found 2/19$409
This Delta deal was found by Cheapflights users on 2/20. 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 5/297:25 pmSDF - GEG
1 stop6h 38mDelta
Mon 6/27:21 pmGEG - SDF
2 stops11h 30mDelta
Deal found 2/20$422
This Southwest deal was found by Cheapflights users on 2/20. 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 5/214:10 pmSDF - BOI
2 stops9h 20mSouthwest
Wed 5/288:40 amBOI - SDF
2 stops11h 05mSouthwest
Deal found 2/20$437
This Delta deal was found by Cheapflights users on 2/19. 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 8/257:25 pmSDF - IDA
2 stops28h 50mDelta
Sat 8/307:00 pmIDA - SDF
2 stops12h 48mDelta
Deal found 2/19$464
This Southwest deal was found by Cheapflights users on 2/20. 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.
Thu 5/295:05 pmSDF - GEG
2 stops8h 55mSouthwest
Mon 6/26:35 amGEG - SDF
2 stops13h 35mSouthwest
Deal found 2/20$483
This United Airlines deal was found by Cheapflights users on 2/19. 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 3/77:02 amSDF - BOI
1 stop7h 03mUnited Airlines
Tue 3/1111:10 amBOI - SDF
2 stops9h 02mUnited Airlines
Deal found 2/19$523
This United Airlines deal was found by Cheapflights users on 2/19. 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.
Mon 8/254:30 pmSDF - IDA
1 stop6h 23mUnited Airlines
Sat 8/307:00 amIDA - SDF
1 stop5h 27mUnited Airlines
Deal found 2/19$533

Find flights from Louisville to Idaho within your budget

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 February 20, 2025.

Fly from

Louisville

Fly to

Idaho

Route

Depart

Return

Price

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Wed 4/23

7:20 am-12:33 pm

1 stop7h 13m

Boise Air Term. Gowen Fld

Mon 4/28

1:23 pm-10:05 pm

1 stop6h 42m

$343

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Wed 4/23

6:00 am-2:30 pm

2 stops10h 30m

Boise Air Term. Gowen Fld

Mon 4/28

2:15 pm-11:59 pm

1 stop7h 44m

$348

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Thu 5/8

7:05 am-12:25 pm

1 stop8h 20m

Spokane

Tue 5/20

1:22 pm-12:26 am

1 stop8h 04m

$368

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Fri 3/7

3:25 pm-12:32 pm

2 stops23h 07m

Boise Air Term. Gowen Fld

Tue 3/11

1:31 pm-6:21 pm

2 stops26h 50m

$393

LouisvilleJackson

SDF - JAC

SDFJAC

Louisville Intl

Tue 6/3

3:29 pm-8:42 pm

1 stop7h 13m

Jackson Hole

Mon 6/9

1:46 pm-10:27 pm

1 stop6h 41m

$406

LouisvilleJackson

SDF - JAC

SDFJAC

Louisville Intl

Fri 3/7

5:42 am-12:01 pm

1 stop8h 19m

Jackson Hole

Tue 3/11

12:53 pm-9:50 pm

1 stop6h 57m

$409

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Thu 5/29

7:25 pm-11:03 pm

1 stop6h 38m

Spokane

Mon 6/2

7:21 pm-9:51 am

2 stops11h 30m

$422

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Wed 5/21

4:10 pm-11:30 pm

2 stops9h 20m

Boise Air Term. Gowen Fld

Wed 5/28

8:40 am-9:45 pm

2 stops11h 05m

$437

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Thu 5/29

5:05 pm-11:00 pm

2 stops8h 55m

Spokane

Mon 6/2

6:35 am-11:10 pm

2 stops13h 35m

$483

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Fri 3/7

7:02 am-12:05 pm

1 stop7h 03m

Boise Air Term. Gowen Fld

Tue 3/11

11:10 am-10:12 pm

2 stops9h 02m

$523

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 21 results
1
2
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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.

Travel insights for flights from Louisville to Idaho

Get recent, data-driven insights about flights from Louisville to Idaho including ideal travel times, pricing trends, and more.

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 $436). 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 February 20, 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 February 20, 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines 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.
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,697 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,219 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,765 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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 cheapest airlines to fly from Louisville to Idaho one-way?

    One-way options have recently been found by users for as low as $259 on American Airlines. Other airlines that offer cheap prices include United Airlines from $367 and Delta from $429 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, 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 $436). 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$260Average$451FlexibilityNo cancel feeOn-time71%
DeltaCheapest$265Average$416FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$324Average$611FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$381Average$426FlexibilityNo cancel feeOn-time63%
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