How long is the flight from Louisville to Boise?

Airlines like Delta, Spirit Airlines, and Southwest fly from Louisville to Boise in about 6h 39m. The time it takes to get you to your destination can typically vary by up to 23h 32m. There are 1625 mi between Louisville and Boise. This flight may include one or multiple stops.

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

Cheapflights users have booked flights from Louisville to Boise round-trip from $258. Other airlines that can offer you cheap pricing are American Airlines, from $287, and Southwest, from $351. Delta is priced at 42% 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 Southwest ($110), American Airlines ($122), and United Airlines ($184).

What is the cheapest day to fly from Louisville to Boise?

Travelers seeking maximum savings on their Louisville to Boise flight should consider departing on Friday mornings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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.

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).

What are the most popular airlines that fly from Louisville to Boise?

American Airlines, Delta and United Airlines are the most popular airlines when flying from Louisville to Boise.

What is the cheapest day to fly round-trip from Louisville to Boise?

It’s generally more expensive to depart on a Friday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

What is the cheapest month to fly from Louisville to Boise?

The best pricing can be found in the month of September. Prices to Boise from Louisville average $451. You can even find prices in September for less than $451, as users have found deals to Boise from as low as $299. The month of November appears to be one of the more expensive times to travel to Boise from Louisville. Flying in the targeted month can save you up to 103%.

What is the cheapest time of day to fly from SDF to BOI?

Unlike at noon, when flights are generally more expensive, you can save up to 31% on flights from Louisville to Boise by exploring options for tickets in the afternoon.

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.

$105+ Cheap Flights from Louisville to Boise

Q: How much does it cost to fly round-trip from Louisville to Boise?

Airfare is below average for this route at the moment. Louisville to Boise flights typically cost between $306 and $416 in November. The cheapest round-trip price found within the last 3 days was $254 on Delta (Nov 3-Nov 12).

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Cheap flight deals from Louisville to Boise

Round-trip from	$254 (Delta)
One-way from	$105 (Southwest)
Popular in	November
Cheapest in	September
Average price	$316

From Louisville Intl to Boise Air Term. Gowen Fld

Search Deals

One-way flight from Louisville Intl to Boise Air Term. Gowen Fld

Search Deals

Highest demand for flights based on searches. 19% potential increase in price ($111 potential increase over avg. RT price).

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Cheapest flight prices on average. 10% potential price decrease ($43 potential savings vs. average RT price).

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Average for round-trip flights in September 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 September 11, 2025.

Mon 11/37:15 pmSDF - BOI

1 stop6h 39mDelta

Wed 11/121:49 pmBOI - SDF

1 stop8h 17mDelta

Deal found 9/10

$254

Tue 9/307:44 pmSDF - BOI

1 stop6h 15mDelta

Tue 10/71:39 pmBOI - SDF

1 stop8h 22mDelta

Deal found 9/9

$317

Thu 9/254:20 pmSDF - BOI

1 stop30h 11mSpirit Airlines

Sun 9/282:16 pmBOI - SDF

1 stop23h 04mSpirit Airlines

Deal found 9/10

$326

Fri 12/1212:00 pmSDF - BOI

1 stop9h 30mSouthwest

Mon 12/1511:45 amBOI - SDF

1 stop7h 45mSouthwest

Deal found 9/8

$340

Mon 11/36:45 amSDF - BOI

2 stops10h 20mSouthwest

Wed 11/1212:05 pmBOI - SDF

2 stops9h 00mSouthwest

Deal found 9/10

$343

Tue 10/73:30 pmSDF - BOI

2 stops10h 14mUnited Airlines

Tue 10/142:39 pmBOI - SDF

1 stop5h 51mUnited Airlines

Deal found 9/9

$378

Tue 10/74:45 pmSDF - BOI

1 stop7h 37mAmerican Airlines

Tue 10/141:33 pmBOI - SDF

1 stop6h 52mAmerican Airlines

Deal found 9/9

$381

Tue 9/308:45 amSDF - BOI

2 stops10h 13mUnited Airlines

Tue 10/77:05 pmBOI - SDF

2 stops12h 56mUnited Airlines

Deal found 9/9

$384

Thu 9/254:20 pmSDF - BOI

1 stop30h 11mSpirit Airlines

Mon 9/299:26 pmBOI - SDF

2 stops33h 53mSpirit Airlines

Deal found 9/10

$425

Best flights from Louisville to Boise
Discover carefully curated flight deals from Louisville to Boise that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2025.

Mon 11/37:15 pmSDF - BOI

1 stop6h 39mDelta

Wed 11/1211:42 amBOI - SDF

2 stops9h 18mDelta

Deal found 9/10

$259

Thu 9/254:20 pmSDF - BOI

1 stop30h 11mSpirit Airlines

Sun 9/282:16 pmBOI - SDF

1 stop23h 04mSpirit Airlines

Deal found 9/10

$326

Mon 11/36:45 amSDF - BOI

2 stops10h 20mSouthwest

Wed 11/1212:05 pmBOI - SDF

2 stops9h 00mSouthwest

Deal found 9/10

$343

Tue 10/73:30 pmSDF - BOI

2 stops10h 14mUnited Airlines

Tue 10/142:39 pmBOI - SDF

1 stop5h 51mUnited Airlines

Deal found 9/9

$378

Tue 10/74:45 pmSDF - BOI

1 stop7h 37mAmerican Airlines

Tue 10/141:33 pmBOI - SDF

1 stop6h 52mAmerican Airlines

Deal found 9/9

$381

Thu 9/254:20 pmSDF - BOI

2 stops21h 17mMultiple Airlines

Sun 9/282:16 pmBOI - SDF

1 stop23h 04mMultiple Airlines

Deal found 9/10

$459

Tue 9/307:44 pmSDF - BOI

1 stop6h 15mDelta

Tue 10/71:39 pmBOI - SDF

1 stop8h 22mDelta

Deal found 9/9

$317

Tue 9/308:45 amSDF - BOI

2 stops10h 13mUnited Airlines

Tue 10/77:05 pmBOI - SDF

2 stops12h 56mUnited Airlines

Deal found 9/9

$384

Thu 9/254:20 pmSDF - BOI

1 stop30h 11mSpirit Airlines

Mon 9/299:26 pmBOI - SDF

2 stops33h 53mSpirit Airlines

Deal found 9/10

$425

Tue 10/76:00 amSDF - BOI

2 stops10h 02mDelta

Tue 10/147:40 amBOI - SDF

2 stops11h 35mDelta

Deal found 9/9

$499

Fri 9/264:20 pmSDF - BOI

1 stop23h 01mSpirit Airlines

Sun 9/282:16 pmBOI - SDF

1 stop23h 04mSpirit Airlines

Deal found 9/10

$499

Last-minute flights from Louisville to Boise
Discover last-minute flight deals from Louisville to Boise. Data last updated September 11, 2025 and is based on user searches.

Thu 9/254:20 pmSDF - BOI

1 stop30h 11mSpirit Airlines

Sun 9/282:16 pmBOI - SDF

1 stop23h 04mSpirit Airlines

Deal found 9/10

$326

Thu 9/254:20 pmSDF - BOI

1 stop30h 11mSpirit Airlines

Mon 9/299:26 pmBOI - SDF

2 stops33h 53mSpirit Airlines

Deal found 9/10

$425

Thu 9/254:20 pmSDF - BOI

2 stops21h 17mMultiple Airlines

Sun 9/282:16 pmBOI - SDF

1 stop23h 04mMultiple Airlines

Deal found 9/10

$459

Thu 9/2510:55 amSDF - BOI

2 stops10h 20mUnited Airlines

Mon 9/2910:45 amBOI - SDF

2 stops9h 45mUnited Airlines

Deal found 9/10

$547

Thu 9/2510:55 amSDF - BOI

2 stops10h 20mUnited Airlines

Sun 9/285:00 amBOI - SDF

2 stops10h 13mUnited Airlines

Deal found 9/10

$595

Fri 9/264:20 pmSDF - BOI

1 stop23h 01mSpirit Airlines

Sun 9/282:16 pmBOI - SDF

1 stop23h 04mSpirit Airlines

Deal found 9/10

$499

Fri 9/265:30 amSDF - BOI

2 stops12h 20mSouthwest

Sun 9/2812:20 pmBOI - SDF

1 stop8h 30mSouthwest

Deal found 9/10

$648

Tue 9/307:44 pmSDF - BOI

1 stop6h 15mDelta

Tue 10/71:39 pmBOI - SDF

1 stop8h 22mDelta

Deal found 9/9

$317

Tue 9/308:45 amSDF - BOI

2 stops10h 13mUnited Airlines

Tue 10/77:05 pmBOI - SDF

2 stops12h 56mUnited Airlines

Deal found 9/9

$384

Tue 10/73:30 pmSDF - BOI

2 stops10h 14mUnited Airlines

Tue 10/142:39 pmBOI - SDF

1 stop5h 51mUnited Airlines

Deal found 9/9

$378

Tue 10/74:45 pmSDF - BOI

1 stop7h 37mAmerican Airlines

Tue 10/141:33 pmBOI - SDF

1 stop6h 52mAmerican Airlines

Deal found 9/9

$381

One-way flights from Louisville to Boise
Search for one-way flight options from Louisville to Boise. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Tue 11/46:05 amSDF - BOI

1 stop6h 10mSouthwest

Deal found 9/10

$105

Tue 10/74:45 pmSDF - BOI

1 stop7h 37mAmerican Airlines

Deal found 9/9

$122

Tue 10/710:55 amSDF - BOI

2 stops10h 39mUnited Airlines

Deal found 9/9

$184

Tue 9/2310:14 amSDF - BOI

3 stops53h 07mSpirit Airlines

Deal found 9/10

$265

Tue 9/233:30 pmSDF - BOI

1 stop7h 44mUnited Airlines

Deal found 9/9

$269

Tue 9/1610:14 amSDF - BOI

2 stops51h 23mMultiple Airlines

Deal found 9/9

$274

Tue 9/2310:14 amSDF - BOI

3 stops51h 23mMultiple Airlines

Deal found 9/9

$277

Tue 9/167:00 amSDF - BOI

1 stop7h 27mAmerican Airlines

Deal found 9/9

$348

Mon 9/2211:17 amSDF - BOI

3 stops38h 51mMultiple Airlines

Deal found 9/9

$430

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Mon 11/3

7:15 pm-11:54 pm

1 stop6h 39m

Boise Air Term. Gowen Fld

Wed 11/12

11:42 am-11:00 pm

2 stops9h 18m

$259

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Tue 9/30

7:44 pm-11:59 pm

1 stop6h 15m

Boise Air Term. Gowen Fld

Tue 10/7

1:39 pm-12:01 am

1 stop8h 22m

$317

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Thu 9/25

4:20 pm-8:31 pm

1 stop30h 11m

Boise Air Term. Gowen Fld

Sun 9/28

2:16 pm-3:20 pm

1 stop23h 04m

$326

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Mon 11/3

6:45 am-3:05 pm

2 stops10h 20m

Boise Air Term. Gowen Fld

Wed 11/12

12:05 pm-11:05 pm

2 stops9h 00m

$343

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Tue 10/7

3:30 pm-11:44 pm

2 stops10h 14m

Boise Air Term. Gowen Fld

Tue 10/14

2:39 pm-10:30 pm

1 stop5h 51m

$378

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Tue 10/7

4:45 pm-10:22 pm

1 stop7h 37m

Boise Air Term. Gowen Fld

Tue 10/14

1:33 pm-10:25 pm

1 stop6h 52m

$381

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Tue 9/30

8:45 am-4:58 pm

2 stops10h 13m

Boise Air Term. Gowen Fld

Tue 10/7

7:05 pm-10:01 am

2 stops12h 56m

$384

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Thu 9/25

4:20 pm-8:31 pm

1 stop30h 11m

Boise Air Term. Gowen Fld

Mon 9/29

9:26 pm-9:19 am

2 stops33h 53m

$425

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Thu 9/25

4:20 pm-11:37 am

2 stops21h 17m

Boise Air Term. Gowen Fld

Sun 9/28

2:16 pm-3:20 pm

1 stop23h 04m

$459

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Tue 10/7

6:00 am-2:02 pm

2 stops10h 02m

Boise Air Term. Gowen Fld

Tue 10/14

7:40 am-9:15 pm

2 stops11h 35m

$499

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 20 results

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 $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.

How much does it cost to fly round-trip from Louisville to Boise?

Reviews of airlines servicing Boise

Read through reviews of airlines operating flights from Louisville to Boise, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,248 reviews

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

4,248 reviews

Southwest

8.0

Very good

4,248 reviews

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

8.0

Very good

7,960 reviews

Southwest

8.0

Very good

4,248 reviews

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

8,937 reviews

Southwest

8.0

Very good

4,248 reviews

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

10,000 reviews

Southwest

8.0

Very good

4,248 reviews

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

How long is the flight from Louisville to Boise?
Airlines like Delta, Spirit Airlines, and Southwest fly from Louisville to Boise in about 6h 39m. The time it takes to get you to your destination can typically vary by up to 23h 32m. There are 1625 mi between Louisville and Boise. This flight may include one or multiple stops.
What are the cheapest airlines flying from Louisville to Boise round-trip?
Cheapflights users have booked flights from Louisville to Boise round-trip from $258. Other airlines that can offer you cheap pricing are American Airlines, from $287, and Southwest, from $351. Delta is priced at 42% 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 Southwest ($110), American Airlines ($122), and United Airlines ($184).
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 $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

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Other flights to Boise

Top 4 airlines flying from Louisville to Boise

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$258	Average$379	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$287	Average$402	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$351	Average$416	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$407	Average$646	FlexibilityNo cancel fee	On-time69%

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$105+ 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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Louisville to Boise

Round-trip from

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Find flight deals from Louisville to Boise

Cheapest flights from Louisville to BoiseExplore 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 September 11, 2025.

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 September 11, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Louisville to Boise that are best for you.

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.

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?

How much does it cost to fly round-trip from Louisville to Boise?

Reviews of airlines servicing Boise

Read through reviews of airlines operating flights from Louisville to Boise, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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.

How long is the flight from Louisville to Boise?

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

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

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

How can I find direct flights from Louisville to Boise?

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

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

Traveling to a place near Boise?

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Louisville to Boise

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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 September 11, 2025.