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Idaho

$174+ 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 5/25. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — BOI
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
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 March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$343
(American Airlines)

One-way from

$174
(American Airlines)

Popular in

September

Cheapest in

February

Average price

$543
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. 10% potential increase in price ($55 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 31, 2025.

This American Airlines deal was found by Cheapflights users on 3/30. 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 4/247:20 amSDF - BOI
1 stop7h 13mAmerican Airlines
Mon 4/281:23 pmBOI - SDF
1 stop8h 33mAmerican Airlines
Deal found 3/30$343
This American Airlines deal was found by Cheapflights users on 3/30. 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.
Wed 8/66:34 amSDF - GEG
1 stop9h 01mAmerican Airlines
Sat 8/96:10 amGEG - SDF
1 stop8h 27mAmerican Airlines
Deal found 3/30$345
This Delta deal was found by Cheapflights users on 3/31. 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 4/242:37 pmSDF - BOI
1 stop9h 51mDelta
Mon 4/287:50 pmBOI - SDF
2 stops12h 13mDelta
Deal found 3/31$348
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Sat 8/162:10 pmSDF - GEG
2 stops11h 58mUnited Airlines
Wed 8/205:43 amGEG - SDF
1 stop5h 44mUnited Airlines
Deal found 3/30$350
This Southwest deal was found by Cheapflights users on 3/30. 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.
Wed 6/44:10 pmSDF - BOI
2 stops9h 45mSouthwest
Sat 6/712:55 pmBOI - SDF
1 stop8h 05mSouthwest
Deal found 3/30$350
This Mytrip deal was found by Cheapflights users on 3/30. 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 4/245:45 amSDF - BOI
3 stops33h 12mSpirit Airlines
Mon 4/281:52 pmBOI - SDF
2 stops30h 25mSpirit Airlines
Deal found 3/30$362
This Delta deal was found by Cheapflights users on 3/30. 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.
Fri 5/166:56 pmSDF - GEG
1 stop7h 19mDelta
Mon 5/197:25 pmGEG - SDF
2 stops13h 36mDelta
Deal found 3/30$366
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Thu 4/243:25 pmSDF - JAC
1 stop7h 27mUnited Airlines
Sun 4/272:21 pmJAC - SDF
1 stop5h 54mUnited Airlines
Deal found 3/30$430
This Delta deal was found by Cheapflights users on 3/29. 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 4/267:35 amSDF - JAC
2 stops11h 06mDelta
Sat 5/31:23 pmJAC - SDF
2 stops8h 36mDelta
Deal found 3/29$440
This American Airlines deal was found by Cheapflights users on 3/31. 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 4/297:21 pmSDF - JAC
2 stops18h 52mAmerican Airlines
Tue 5/612:46 pmJAC - SDF
1 stop6h 53mAmerican Airlines
Deal found 3/31$465
This American Airlines deal was found by Cheapflights users on 3/30. 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.
Wed 6/47:05 amSDF - IDA
1 stop7h 22mAmerican Airlines
Sat 6/71:51 pmIDA - SDF
1 stop6h 56mAmerican Airlines
Deal found 3/30$507
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Wed 6/47:00 amSDF - IDA
2 stops17h 51mUnited Airlines
Sat 6/77:05 amIDA - SDF
1 stop5h 26mUnited Airlines
Deal found 3/30$613

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 March 31, 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

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Thu 4/24

7:20 am-12:33 pm

1 stop7h 13m

Boise Air Term. Gowen Fld

Mon 4/28

1:23 pm-11:56 pm

1 stop8h 33m

$343

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Wed 8/6

6:34 am-12:35 pm

1 stop9h 01m

Spokane

Sat 8/9

6:10 am-5:37 pm

1 stop8h 27m

$345

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Thu 4/24

2:37 pm-10:28 pm

1 stop9h 51m

Boise Air Term. Gowen Fld

Mon 4/28

7:50 pm-10:03 am

2 stops12h 13m

$348

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Sat 8/16

2:10 pm-11:08 pm

2 stops11h 58m

Spokane

Wed 8/20

5:43 am-2:27 pm

1 stop5h 44m

$350

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Wed 6/4

4:10 pm-11:55 pm

2 stops9h 45m

Boise Air Term. Gowen Fld

Sat 6/7

12:55 pm-11:00 pm

1 stop8h 05m

$350

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Thu 4/24

5:45 am-12:57 pm

3 stops33h 12m

Boise Air Term. Gowen Fld

Mon 4/28

1:52 pm-10:17 pm

2 stops30h 25m

$362

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Fri 5/16

6:56 pm-11:15 pm

1 stop7h 19m

Spokane

Mon 5/19

7:25 pm-12:01 pm

2 stops13h 36m

$366

LouisvilleJackson

SDF - JAC

SDFJAC

Louisville Intl

Thu 4/24

3:25 pm-8:52 pm

1 stop7h 27m

Jackson Hole

Sun 4/27

2:21 pm-10:15 pm

1 stop5h 54m

$430

LouisvilleJackson

SDF - JAC

SDFJAC

Louisville Intl

Sat 4/26

7:35 am-4:41 pm

2 stops11h 06m

Jackson Hole

Sat 5/3

1:23 pm-11:59 pm

2 stops8h 36m

$440

LouisvilleJackson

SDF - JAC

SDFJAC

Louisville Intl

Tue 4/29

7:21 pm-12:13 pm

2 stops18h 52m

Jackson Hole

Tue 5/6

12:46 pm-9:39 pm

1 stop6h 53m

$465

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 28 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, 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 March 31, 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 March 31, 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
9,818 reviews

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.1

Comfort

7.9

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
9,818 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.1

Comfort

7.9

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
4,276 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.1

Comfort

7.9

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
7,899 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.1

Comfort

7.9

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
8,614 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.1

Comfort

7.9

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
9,818 reviews

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.1

Comfort

7.9

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

    One-way options have recently been found by users for as low as $174 on American Airlines. Other airlines that offer cheap prices include Delta from $195 and United Airlines from $260 one-way.

  • 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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Alternative routes for Louisville to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$300Average$414FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$323Average$573FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$324Average$614FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$381Average$426FlexibilityNo cancel feeOn-time63%
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