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$149+ Cheap flights from Louisville to Boise (SDF - BOI)

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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — BOI
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Louisville to Boise

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Boise (BOI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.

Round-trip from

$297
(Delta)

One-way from

$149
(Delta)

Popular in

November

Cheapest in

February

Average price

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

Cheapest flights from Louisville to Boise
Explore the most affordable flight options available from Louisville to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Delta deal was found by Cheapflights users on 6/10. 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 9/87:34 pmSDF - BOI
1 stop6h 24mDelta
Thu 9/1111:30 pmBOI - SDF
1 stop7h 18mDelta
Deal found 6/10$297
This FlightHub deal was found by Cheapflights users on 6/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/812:00 pmSDF - BOI
2 stops10h 44mSpirit Airlines
Sun 9/149:49 pmBOI - SDF
1 stop17h 01mSpirit Airlines
Deal found 6/10$313
This American Airlines deal was found by Cheapflights users on 6/10. 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 7/124:46 pmSDF - BOI
1 stop7h 40mAmerican Airlines
Wed 7/1611:44 amBOI - SDF
1 stop9h 00mAmerican Airlines
Deal found 6/10$379
This United Airlines deal was found by Cheapflights users on 6/12. 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 7/153:25 pmSDF - BOI
1 stop8h 09mUnited Airlines
Thu 7/172:32 pmBOI - SDF
1 stop6h 13mUnited Airlines
Deal found 6/12$398
This Southwest deal was found by Cheapflights users on 6/12. 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 7/155:40 amSDF - BOI
2 stops15h 00mSouthwest
Thu 7/1712:15 pmBOI - SDF
2 stops10h 10mSouthwest
Deal found 6/12$414
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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.
Mon 9/812:25 pmSDF - BOI
2 stops12h 15mAlaska Airlines
Sun 9/146:00 amBOI - SDF
2 stops9h 42mAlaska Airlines
Deal found 6/10$517
This Mytrip deal was found by Cheapflights users on 6/10. 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 6/121:18 pmSDF - BOI
2 stops21h 30mMultiple Airlines
Thu 6/198:26 pmBOI - SDF
1 stop12h 47mMultiple Airlines
Deal found 6/10$579

Cheapflights Fare Finder

Customize your flight search to find flights from Louisville to Boise 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 12, 2025.
Use the filters below to find and compare flights from Louisville to Boise that are best for you.

Fly from

Louisville

Fly to

Boise

Route

Depart

Return

Price

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Mon 9/8

7:34 pm-11:58 pm

1 stop6h 24m

Boise Air Term. Gowen Fld

Thu 9/11

11:30 pm-8:48 am

1 stop7h 18m

$297

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Mon 9/8

12:00 pm-8:44 pm

2 stops10h 44m

Boise Air Term. Gowen Fld

Sun 9/14

9:49 pm-4:50 pm

1 stop17h 01m

$313

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Sat 7/12

4:46 pm-10:26 pm

1 stop7h 40m

Boise Air Term. Gowen Fld

Wed 7/16

11:44 am-10:44 pm

1 stop9h 00m

$379

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Tue 7/15

3:25 pm-9:34 pm

1 stop8h 09m

Boise Air Term. Gowen Fld

Thu 7/17

2:32 pm-10:45 pm

1 stop6h 13m

$398

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Tue 7/15

5:40 am-6:40 pm

2 stops15h 00m

Boise Air Term. Gowen Fld

Thu 7/17

12:15 pm-12:25 am

2 stops10h 10m

$414

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Mon 9/8

12:25 pm-10:40 pm

2 stops12h 15m

Boise Air Term. Gowen Fld

Sun 9/14

6:00 am-5:42 pm

2 stops9h 42m

$517

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Mon 9/8

7:34 pm-11:58 pm

1 stop6h 24m

$149

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Mon 9/8

12:00 pm-8:44 pm

2 stops10h 44m

$152

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Sat 9/6

2:25 pm-9:48 pm

1 stop9h 23m

$158

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Mon 9/8

10:55 am-9:14 pm

2 stops12h 19m

$250

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Best time to book a flight from Louisville to Boise

Have a flexible travel schedule? Discover the best time to fly to Boise 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 Boise

What is the cheapest month to book a flight from Louisville to Boise?

Currently, October is the cheapest month in which you can book a flight from Louisville to Boise (average of $314). Flying from Louisville to Boise in June is currently the most expensive (average of $395). 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.

Rainfall in Boise by month

Plan your trip to Boise by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Boise 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 Boise when rainfall is around 0.2 in.

Temperature in Boise by month

Plan your trip to Boise by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Boise, 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 Boise

Get insights into the airlines that provide service to Boise. 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 Boise. Reviews last updated June 12, 2025.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

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

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

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
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

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
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

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

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

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 Boise. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Louisville to Boise round-trip?

    Cheapflights users have booked flights from Louisville to Boise round-trip from $297. Other airlines that can offer you cheap pricing are Spirit Airlines, from $313, and American Airlines, from $379. Delta is priced at 33% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Louisville to Boise one-way?

    The cheapest airlines for a one-way flight from Louisville to Boise are Delta ($149), Spirit Airlines ($152), and American Airlines ($158).

  • Can I find deals for flights from Louisville to Boise that include hotel bookings?

    Yes. In addition to deals on Louisville to Boise flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Louisville to Boise?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to Boise.

  • Can I find deals for business class flights from Louisville to Boise?

    Yes. Cheapflights offers flight deals from Louisville to Boise 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 Boise?

    Currently, October is the cheapest month in which you can book a flight from Louisville to Boise (average of $314). Flying from Louisville to Boise in June is currently the most expensive (average of $395). 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

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
Nampa
Meridian
Ontario
McCall
Caldwell

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Top 4 airlines flying from Louisville to Boise

Discover the top 4 airlines that operate flights from Louisville to Boise. 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 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$289Average$397FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$326Average$416FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$336Average$536FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$351Average$416FlexibilityNo cancel feeOn-time63%

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