HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Idaho

$169+ 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — BOI
Jun 28 — Jul 51
Sat 6/28
Sat 7/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Louisville to Idaho with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 June 23, 2025.

Round-trip from

$269
(American Airlines)

One-way from

$169
(American Airlines)

Popular in

November

Cheapest in

February

Average price

$447
From Louisville Intl to Idaho
Search Deals
One-way flight from Louisville Intl to Idaho
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($31 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

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 June 23, 2025.

This American Airlines deal was found by Cheapflights users on 6/21. 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 10/215:56 amSDF - JAC
1 stop8h 16mAmerican Airlines
Tue 10/282:07 pmJAC - SDF
1 stop5h 29mAmerican Airlines
Deal found 6/21$269
This Mytrip deal was found by Cheapflights users on 6/21. 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 7/104:31 pmSDF - IDA
2 stops21h 13mMultiple Airlines
Mon 7/146:12 pmIDA - SDF
2 stops19h 24mMultiple Airlines
Deal found 6/21$290
This United Airlines deal was found by Cheapflights users on 6/21. 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 7/118:40 amSDF - JAC
2 stops11h 15mUnited Airlines
Tue 7/157:00 amJAC - SDF
1 stop5h 23mUnited Airlines
Deal found 6/21$313
This American Airlines deal was found by Cheapflights users on 6/21. 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 9/36:44 pmSDF - GEG
1 stop7h 08mAmerican Airlines
Wed 9/101:30 pmGEG - SDF
1 stop6h 29mAmerican Airlines
Deal found 6/21$337
This Delta deal was found by Cheapflights users on 6/22. 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 8/207:34 pmSDF - BOI
1 stop6h 22mDelta
Wed 9/31:30 pmBOI - SDF
1 stop8h 26mDelta
Deal found 6/22$342
This Orbitz deal was found by Cheapflights users on 6/21. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/610:00 amSDF - BOI
2 stops15h 59mMultiple Airlines
Sat 9/139:49 pmBOI - SDF
1 stop14h 49mMultiple Airlines
Deal found 6/21$349
This United Airlines deal was found by Cheapflights users on 6/21. 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 7/128:00 amSDF - BOI
1 stop7h 29mUnited Airlines
Sat 7/192:32 pmBOI - SDF
1 stop6h 13mUnited Airlines
Deal found 6/21$379
This Delta deal was found by Cheapflights users on 6/21. 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 8/67:41 pmSDF - GEG
1 stop6h 31mDelta
Sat 8/92:22 pmGEG - SDF
1 stop6h 05mDelta
Deal found 6/21$382
This American Airlines deal was found by Cheapflights users on 6/22. 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 10/96:34 amSDF - IDA
1 stop7h 36mAmerican Airlines
Tue 10/1412:46 pmIDA - SDF
1 stop8h 17mAmerican Airlines
Deal found 6/22$395
This Southwest deal was found by Cheapflights users on 6/21. 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 9/65:50 amSDF - BOI
2 stops11h 00mSouthwest
Sat 9/136:00 amBOI - SDF
2 stops9h 25mSouthwest
Deal found 6/21$404
This United Airlines deal was found by Cheapflights users on 6/21. 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 9/310:55 amSDF - GEG
2 stops13h 08mUnited Airlines
Wed 9/1011:21 amGEG - SDF
1 stop8h 03mUnited Airlines
Deal found 6/21$432
This Alaska Airlines deal was found by Cheapflights users on 6/22. 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 9/37:00 amSDF - BOI
2 stops10h 54mAlaska Airlines
Wed 9/37:17 pmBOI - SDF
2 stops20h 17mAlaska Airlines
Deal found 6/22$447

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 June 23, 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

Tue 10/21

5:56 am-12:12 pm

1 stop8h 16m

Jackson Hole

Tue 10/28

2:07 pm-9:36 pm

1 stop5h 29m

$269

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Thu 7/10

4:31 pm-11:44 am

2 stops21h 13m

Idaho Falls Fanning Field

Mon 7/14

6:12 pm-3:36 pm

2 stops19h 24m

$290

LouisvilleJackson

SDF - JAC

SDFJAC

Louisville Intl

Fri 7/11

8:40 am-5:55 pm

2 stops11h 15m

Jackson Hole

Tue 7/15

7:00 am-2:23 pm

1 stop5h 23m

$313

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Wed 9/3

6:44 pm-10:52 pm

1 stop7h 08m

Spokane

Wed 9/10

1:30 pm-10:59 pm

1 stop6h 29m

$337

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Wed 8/20

7:34 pm-11:56 pm

1 stop6h 22m

Boise Air Term. Gowen Fld

Wed 9/3

1:30 pm-11:56 pm

1 stop8h 26m

$342

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Sat 9/6

10:00 am-11:59 pm

2 stops15h 59m

Boise Air Term. Gowen Fld

Sat 9/13

9:49 pm-2:38 pm

1 stop14h 49m

$349

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Sat 7/12

8:00 am-1:29 pm

1 stop7h 29m

Boise Air Term. Gowen Fld

Sat 7/19

2:32 pm-10:45 pm

1 stop6h 13m

$379

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Wed 8/6

7:41 pm-11:12 pm

1 stop6h 31m

Spokane

Sat 8/9

2:22 pm-11:27 pm

1 stop6h 05m

$382

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Thu 10/9

6:34 am-12:10 pm

1 stop7h 36m

Idaho Falls Fanning Field

Tue 10/14

12:46 pm-11:03 pm

1 stop8h 17m

$395

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Sat 9/6

5:50 am-2:50 pm

2 stops11h 00m

Boise Air Term. Gowen Fld

Sat 9/13

6:00 am-5:25 pm

2 stops9h 25m

$404

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/21

Showing 1-10 of 25 results
1
2
3

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 $398). 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 June 23, 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 June 23, 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
10,000 reviews

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,278 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,966 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,831 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 $169 on American Airlines. Other airlines that offer cheap prices include Delta from $179 and Southwest from $205 one-way.

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

    Most travelers choose Louisville Intl - Jackson Hole, Louisville Intl - Spokane 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 $398). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Louisville to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
Nashville to Seattle flights
Cincinnati to John F Kennedy Intl flights
Cincinnati to Las Vegas flights
Cincinnati to Orlando flights
Cincinnati to LaGuardia flights
Cincinnati to Newark flights
Nashville to LaGuardia flights
Cincinnati to Seattle flights
Nashville to John F Kennedy Intl flights
Cincinnati to Denver flights
Cincinnati to Boston flights
Cincinnati to Hobby flights
Nashville to Minneapolis flights
Cincinnati to Dallas/Fort Worth flights
Nashville to Newark flights
Nashville to Fort Lauderdale flights
Nashville to Miami flights
Nashville to Las Vegas flights
Cincinnati to Los Angeles flights
Nashville to O'Hare Intl flights
Cincinnati to Miami flights
Cincinnati to George Bush Intcntl flights
Nashville to Boston flights
Cincinnati to Fort Lauderdale flights
Cincinnati to Fort Myers flights
Cincinnati to Atlanta flights
Cincinnati to Tampa flights
Nashville to Dallas/Fort Worth flights
Louisville to Boston flights
Nashville to Denver flights
Nashville to Los Angeles flights
Nashville to Orlando flights
Louisville to LaGuardia flights
Nashville to San Francisco flights
Cincinnati to O'Hare Intl flights
Nashville to Portland flights
Louisville to Las Vegas flights
Louisville to Denver flights
Knoxville to O'Hare Intl flights
Nashville to Hobby flights
Louisville to John F Kennedy Intl flights
Louisville to Miami flights
Evansville to Miami flights
Cincinnati to Philadelphia flights
Lexington to LaGuardia flights
Louisville to Orlando flights
Louisville to Newark flights
Nashville to Salt Lake City flights
Nashville to George Bush Intcntl flights
Cincinnati to Sky Harbor Intl flights

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 June 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$287Average$524FlexibilityNo cancel feeOn-time71%
DeltaCheapest$289Average$407FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$324Average$603FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$351Average$416FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.