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Cheap flights from Louisville to Idaho from $267

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to Idaho departing on 9/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Louisville to Idaho

Cheap round-trip flights

American Airlines Logo
7:32 am - 12:43 pmSDF-JAC
7h 11m1 stop
American Airlines Logo
1:24 pm - 10:25 pmJAC-SDF
7h 01m1 stop
$291American Airlines
Find Deal
Tue, Oct 21 - Tue, Oct 28
Delta Logo
6:36 am - 2:09 pmSDF-BOI
9h 33m1 stop
Delta Logo
3:00 pm - 10:55 pmBOI-SDF
5h 55m1 stop
$327Delta
Find Deal
Fri, Feb 20 - Tue, Feb 24
American Airlines Logo
7:45 am - 12:48 pmSDF-BOI
7h 03m1 stop
American Airlines Logo
1:33 pm - 10:25 pmBOI-SDF
6h 52m1 stop
$328American Airlines
Find Deal
Tue, Sep 30 - Tue, Oct 7
Delta Logo
6:36 am - 2:09 pmSDF-BOI
9h 33m1 stop
Delta Logo
11:45 am - 10:55 pmBOI-SDF
9h 10m2 stops
$332Delta
Find Deal
Fri, Feb 20 - Tue, Feb 24
Southwest Logo
1:05 pm - 10:00 pmSDF-GEG
11h 55m2 stops
Southwest Logo
1:50 pm - 1:20 amGEG-SDF
8h 30m1 stop
$403Southwest
Find Deal
Tue, Nov 18 - Tue, Nov 25
United Airlines Logo
11:00 am - 8:45 pmSDF-GEG
12h 45m2 stops
United Airlines Logo
1:47 pm - 10:30 pmGEG-SDF
5h 43m1 stop
$407United Airlines
Find Deal
Tue, Nov 18 - Sat, Nov 22
United Airlines Logo
10:55 am - 8:24 pmSDF-GEG
12h 29m2 stops
United Airlines Logo
5:05 am - 2:28 pmGEG-SDF
6h 23m1 stop
$427United Airlines
Find Deal
Wed, Oct 8 - Sat, Oct 11
Southwest Logo
1:50 pm - 10:00 pmSDF-GEG
11h 10m2 stops
Southwest Logo
5:50 am - 5:15 pmGEG-SDF
8h 25m1 stop
$434Southwest
Find Deal
Tue, Nov 18 - Mon, Nov 24
Alaska Airlines Logo
4:44 pm - 8:20 amSDF-GEG
18h 36m2 stops
Alaska Airlines Logo
1:31 pm - 10:26 amGEG-SDF
17h 55m2 stops
$537Alaska Airlines
Find Deal
Mon, Oct 13 - Fri, Oct 17
Alaska Airlines Logo
10:00 am - 10:39 pmSDF-IDA
14h 39m2 stops
Alaska Airlines Logo
6:13 am - 10:22 pmIDA-SDF
14h 09m2 stops
$2,088Alaska Airlines
Find Deal
Sun, Sep 21 - Sun, Sep 28

American Airlines flights from Louisville to Idaho

Our best American Airlines deals on Louisville to Idaho flight tickets
American Airlines
Oct 21
SDF7:32 amLouisville Intl
7h 11m
1 stop
JAC12:43 pmJackson Hole
Oct 28
JAC1:24 pmJackson Hole
7h 01m
1 stop
SDF10:25 pmLouisville Intl
$291
Find similar
American Airlines
Sep 30
SDF7:45 amLouisville Intl
7h 03m
1 stop
BOI12:48 pmBoise Air Term. Gowen Fld
Oct 7
BOI1:33 pmBoise Air Term. Gowen Fld
6h 52m
1 stop
SDF10:25 pmLouisville Intl
$328
Find similar
American Airlines
Nov 18
SDF10:51 amLouisville Intl
8h 51m
1 stop
GEG4:42 pmSpokane
Nov 25
GEG1:14 pmSpokane
6h 40m
1 stop
SDF10:54 pmLouisville Intl
$342
Find similar

Southwest flights from Louisville to Idaho

Our best Southwest deals on Louisville to Idaho flight tickets
Southwest
Nov 18
SDF1:05 pmLouisville Intl
11h 55m
2 stops
GEG10:00 pmSpokane
Nov 25
GEG1:50 pmSpokane
8h 30m
1 stop
SDF1:20 amLouisville Intl
$403
Find similar
Southwest
Nov 18
SDF1:50 pmLouisville Intl
11h 10m
2 stops
GEG10:00 pmSpokane
Nov 24
GEG5:50 amSpokane
8h 25m
1 stop
SDF5:15 pmLouisville Intl
$434
Find similar
Southwest
Oct 4
SDF4:55 pmLouisville Intl
7h 20m
1 stop
BOI10:15 pmBoise Air Term. Gowen Fld
Oct 6
BOI2:10 pmBoise Air Term. Gowen Fld
8h 25m
1 stop
SDF12:35 amLouisville Intl
$438
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated September 8, 2025.
Use the filters below to find and compare flights from Louisville to Idaho that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleJackson

SDF - JAC

SDFJAC

Louisville Intl

Tue 10/21

7:32 am-12:43 pm

1 stop7h 11m

Jackson Hole

Tue 10/28

1:24 pm-10:25 pm

1 stop7h 01m

$291

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

$327

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Tue 9/30

7:45 am-12:48 pm

1 stop7h 03m

Boise Air Term. Gowen Fld

Tue 10/7

1:33 pm-10:25 pm

1 stop6h 52m

$328

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

11:45 am-10:55 pm

2 stops9h 10m

$332

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Tue 11/18

1:05 pm-10:00 pm

2 stops11h 55m

Spokane

Tue 11/25

1:50 pm-1:20 am

1 stop8h 30m

$403

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Tue 11/18

11:00 am-8:45 pm

2 stops12h 45m

Spokane

Sat 11/22

1:47 pm-10:30 pm

1 stop5h 43m

$407

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Wed 10/8

10:55 am-8:24 pm

2 stops12h 29m

Spokane

Sat 10/11

5:05 am-2:28 pm

1 stop6h 23m

$427

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Tue 11/18

1:50 pm-10:00 pm

2 stops11h 10m

Spokane

Mon 11/24

5:50 am-5:15 pm

1 stop8h 25m

$434

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Mon 10/13

4:44 pm-8:20 am

2 stops18h 36m

Spokane

Fri 10/17

1:31 pm-10:26 am

2 stops17h 55m

$537

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Sun 9/21

10:00 am-10:39 pm

2 stops14h 39m

Idaho Falls Fanning Field

Sun 9/28

6:13 am-10:22 pm

2 stops14h 09m

$2,088

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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See travel insights to Idaho from

How to get the cheapest flight ticket from Louisville to Idaho

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Idaho?

In general, September is the cheapest month to fly from Louisville to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $316. If you don’t want to visit Idaho in September, then you should wait until August to fly from Louisville, when ticket prices are also cheap, with an average price of $332.

What is the cheapest day to depart on your flight to Idaho?

Our data shows that Saturday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $400. On the other hand, Tuesday is the most expensive day to depart from Louisville because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $602.

What is the cheapest time of day to depart on your flight to Idaho?

According to our data, the cheapest time of day to fly to Idaho is in the evening. momondo users have found flights departing from Louisville to Idaho in the evening for as low as $407. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the afternoon is when there is more demand to fly to Idaho, so prices are often more expensive at around $586 per ticket.

Can stopping save me money on Louisville to Idaho flights?

You could potentially save up to 9% on your flight if you consider stops on a Louisville to Idaho flight.

Cheap Louisville to Idaho flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Idaho

Direct flights

None
There are no direct flights from Louisville to Idaho. There are no popular flight routes from Louisville to Idaho.
Search flight deals

  • When did momondo last update prices for flights from Louisville Intl Airport to Idaho?

    Prices for flights from Louisville Intl Airport to Idaho refresh daily.

  • How many operators does momondo search for flights from Louisville Intl Airport to Idaho?

  • How old do you have to be to fly from Louisville Intl Airport to Idaho?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Idaho.

  • What documentation or ID do you need to fly to Idaho?

    The travel and health documents you'll need for your trip to Idaho may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Idaho. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Louisville to Idaho

Compare and see reviews for airlines that fly from Louisville to Idaho with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $258Free CancellationRating
7.9
7,966 reviews
Search Delta flights
American AirlinesPriceFrom $287Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $337Free CancellationRating
7.4
8,944 reviews
Search United Airlines flights
SouthwestPriceFrom $351Free CancellationRating
8.0
4,244 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Idaho?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Louisville to Idaho. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Louisville to Idaho with flexible booking policies on momondo?

All flight searches from Louisville to Idaho on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Louisville to Idaho?

momondo helps you find the best flight between Louisville and Idaho by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Louisville to Idaho right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Louisville to Idaho now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Idaho and let you know when they change.

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