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Idaho

$170+ 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 12/25. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — BOI
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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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 October 28, 2025.

This Delta deal was found by Cheapflights users on 10/28. 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 11/277:15 amSDF - JAC
2 stops11h 37mDelta
Thu 12/47:00 amJAC - SDF
2 stops9h 45mDelta
Deal found 10/28$299
This United Airlines deal was found by Cheapflights users on 10/28. 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 12/137:00 amSDF - JAC
1 stop6h 06mUnited Airlines
Sat 12/201:00 pmJAC - SDF
1 stop6h 54mUnited Airlines
Deal found 10/28$304
This American Airlines deal was found by Cheapflights users on 10/26. 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 11/137:13 amSDF - JAC
1 stop7h 16mAmerican Airlines
Thu 11/201:11 pmJAC - SDF
1 stop6h 49mAmerican Airlines
Deal found 10/26$309
This American Airlines deal was found by Cheapflights users on 10/27. 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 11/117:13 amSDF - JAC
1 stop7h 03mAmerican Airlines
Sat 11/151:06 pmJAC - SDF
1 stop6h 56mAmerican Airlines
Deal found 10/27$329
This Delta deal was found by Cheapflights users on 10/27. 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 11/116:00 amSDF - JAC
2 stops8h 01mDelta
Sat 11/1512:57 pmJAC - SDF
2 stops9h 09mDelta
Deal found 10/27$359
This American Airlines deal was found by Cheapflights users on 10/26. 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 11/225:45 amSDF - JAC
1 stop8h 29mAmerican Airlines
Fri 11/282:06 pmJAC - SDF
1 stop5h 56mAmerican Airlines
Deal found 10/26$369
This United Airlines deal was found by Cheapflights users on 10/28. 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 11/278:00 amSDF - JAC
1 stop7h 17mUnited Airlines
Thu 12/42:49 pmJAC - SDF
1 stop5h 21mUnited Airlines
Deal found 10/28$371
This American Airlines deal was found by Cheapflights users on 10/28. 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 11/186:44 amSDF - GEG
1 stop8h 48mAmerican Airlines
Sat 11/2211:59 pmGEG - SDF
1 stop7h 12mAmerican Airlines
Deal found 10/28$393
This United Airlines deal was found by Cheapflights users on 10/26. 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 11/1311:00 amSDF - JAC
2 stops11h 37mUnited Airlines
Thu 11/202:40 pmJAC - SDF
1 stop5h 50mUnited Airlines
Deal found 10/26$394
This Delta deal was found by Cheapflights users on 10/28. 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 11/1210:37 amSDF - IDA
2 stops13h 42mDelta
Sun 11/166:57 pmIDA - SDF
2 stops12h 55mDelta
Deal found 10/28$419
This United Airlines deal was found by Cheapflights users on 10/27. 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 11/187:00 amSDF - GEG
1 stop7h 31mUnited Airlines
Thu 11/2011:25 amGEG - SDF
1 stop8h 04mUnited Airlines
Deal found 10/27$432
This Delta deal was found by Cheapflights users on 10/28. 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 11/1812:37 pmSDF - GEG
2 stops9h 21mDelta
Sat 11/222:09 pmGEG - SDF
1 stop5h 51mDelta
Deal found 10/28$437

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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$269
(United Airlines)

One-way from

$170
(American Airlines)

Popular in

November

Cheapest in

September

Average price

$518
Provider with most accurate pricing for Louisville Intl-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-Boise Air Term. Gowen Fld flights.
Search Deals
From Louisville Intl to Idaho
Search Deals
One-way flight from Louisville Intl to Idaho
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($144 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 28, 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

Sat 1/17

9:00 am-1:30 pm

1 stop6h 30m

Idaho Falls Fanning Field

Sat 1/24

2:40 pm-10:44 pm

1 stop6h 04m

$269

LouisvilleJackson

SDF - JAC

SDFJAC

Louisville Intl

Thu 11/27

7:15 am-4:52 pm

2 stops11h 37m

Jackson Hole

Thu 12/4

7:00 am-6:45 pm

2 stops9h 45m

$299

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Fri 2/20

6:36 am-2:09 pm

1 stop9h 33m

Boise Air Term. Gowen Fld

Tue 2/24

3:00 pm-10:55 pm

1 stop5h 55m

$320

LouisvilleJackson

SDF - JAC

SDFJAC

Louisville Intl

Tue 11/11

7:13 am-12:16 pm

1 stop7h 03m

Jackson Hole

Sat 11/15

1:06 pm-10:02 pm

1 stop6h 56m

$329

LouisvilleJackson

SDF - JAC

SDFJAC

Louisville Intl

Sat 12/13

7:00 am-11:06 am

1 stop6h 06m

Jackson Hole

Sat 12/20

2:30 pm-10:24 pm

1 stop5h 54m

$336

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Thu 1/15

7:05 am-11:45 am

1 stop7h 40m

Spokane

Mon 1/19

6:30 am-4:16 pm

1 stop6h 46m

$351

LouisvilleJackson

SDF - JAC

SDFJAC

Louisville Intl

Tue 11/11

6:00 am-12:01 pm

2 stops8h 01m

Jackson Hole

Sat 11/15

12:57 pm-12:06 am

2 stops9h 09m

$359

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Tue 11/18

6:44 am-12:32 pm

1 stop8h 48m

Spokane

Sat 11/22

11:59 pm-10:11 am

1 stop7h 12m

$393

LouisvilleJackson

SDF - JAC

SDFJAC

Louisville Intl

Thu 11/13

11:00 am-8:37 pm

2 stops11h 37m

Jackson Hole

Thu 11/20

2:40 pm-10:30 pm

1 stop5h 50m

$394

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Fri 1/16

9:00 am-1:30 pm

1 stop6h 30m

Idaho Falls Fanning Field

Mon 1/19

2:40 pm-10:44 pm

1 stop6h 04m

$424

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 35 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, August is the cheapest month in which you can book a flight from Louisville to Idaho (average of $196). Flying from Louisville to Idaho in September is currently the most expensive (average of $298). 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 October 28, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 46% on flights from Louisville to Idaho by exploring options for tickets in the evening.

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 October 28, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Louisville to Idaho to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,240 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,240 reviews
Southwest
8.0
Very good
4,240 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
7,994 reviews
Southwest
8.0
Very good
4,240 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
9,001 reviews
Southwest
8.0
Very good
4,240 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,032 reviews
Southwest
8.0
Very good
4,240 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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.

  • How long is the flight from Louisville to Idaho?

    A quick flight from Louisville to Idaho can take about 6h 30m. United Airlines provides one of the quickest options available for as low as $269. The distance from Louisville to Idaho is about 1417 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 $170 on American Airlines. Other airlines that offer cheap prices include Delta from $176 and Southwest from $260 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, August is the cheapest month in which you can book a flight from Louisville to Idaho (average of $196). Flying from Louisville to Idaho in September is currently the most expensive (average of $298). 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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$258Average$375FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$287Average$445FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$343Average$567FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$351Average$426FlexibilityNo cancel feeOn-time63%

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