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Cheap flights from Kentucky to Idaho Falls from $156

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Kentucky to Idaho Falls departing on 11/4. 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
1 adult, Economy, 0 bags

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Find the cheapest flights from Kentucky to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
7:00 am - 1:18 pmBNA  Nashville Intl-IDA Idaho Falls Fanning Field
7h 18m1 stop Dallas/Fort Worth
American Airlines Logo
1:48 pm - 11:24 pmIDA  Idaho Falls Fanning Field-BNA Nashville Intl
8h 36m1 stop Dallas/Fort Worth
$339American Airlines
Mon, Jan 25 - Mon, Feb 1
American Airlines Logo
12:42 pm - 10:36 pmBNA  Nashville Intl-IDA Idaho Falls Fanning Field
10h 54m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl
American Airlines Logo
1:48 pm - 11:24 pmIDA  Idaho Falls Fanning Field-BNA Nashville Intl
8h 36m1 stop Dallas/Fort Worth
$357American Airlines
Mon, Jan 25 - Mon, Feb 1
Multiple Airlines Logo
1:49 pm - 11:58 amBNA  Nashville Intl-IDA Idaho Falls Fanning Field
23h 09m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
6:21 pm - 2:18 pmIDA  Idaho Falls Fanning Field-BNA Nashville Intl
18h 57m2 stops Las Vegas Harry Reid Intl Denver Intl
$371Multiple Airlines
Thu, Sep 24 - Mon, Sep 28
United Airlines Logo
8:00 am - 1:29 pmSDF  Louisville Intl-IDA Idaho Falls Fanning Field
7h 29m1 stop Denver Intl
United Airlines Logo
7:00 am - 2:29 pmIDA  Idaho Falls Fanning Field-SDF Louisville Intl
5h 29m1 stop Denver Intl
$374United Airlines
Thu, Aug 27 - Sat, Sep 5
American Airlines Logo
6:30 am - 1:09 pmLEX  Lexington Blue Grass-IDA Idaho Falls Fanning Field
8h 39m1 stop Chicago O'Hare Intl
American Airlines Logo
12:06 pm - 11:19 pmIDA  Idaho Falls Fanning Field-LEX Lexington Blue Grass
9h 13m1 stop Dallas/Fort Worth
$374American Airlines
Sat, Aug 29 - Sat, Sep 5
United Airlines Logo
7:00 am - 3:23 pmLEX  Lexington Blue Grass-IDA Idaho Falls Fanning Field
10h 23m2 stops Chicago O'Hare Intl Denver Intl
United Airlines Logo
2:25 pm - 10:38 pmIDA  Idaho Falls Fanning Field-LEX Lexington Blue Grass
6h 13m1 stop Denver Intl
$379United Airlines
Sat, Aug 29 - Sat, Sep 5
Alaska Airlines Logo
7:00 am - 3:20 pmBNA  Nashville Intl-IDA Idaho Falls Fanning Field
9h 20m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
2:01 pm - 11:59 pmIDA  Idaho Falls Fanning Field-BNA Nashville Intl
8h 58m1 stop Seattle/Tacoma Intl
$381Alaska Airlines
Tue, Sep 22 - Tue, Sep 29
Alaska Airlines Logo
10:15 am - 10:56 pmBNA  Nashville Intl-IDA Idaho Falls Fanning Field
13h 41m2 stops Dallas/Fort Worth Seattle/Tacoma Intl
Alaska Airlines Logo
2:01 pm - 11:59 pmIDA  Idaho Falls Fanning Field-BNA Nashville Intl
8h 58m1 stop Seattle/Tacoma Intl
$406Alaska Airlines
Tue, Sep 22 - Tue, Sep 29
Delta Logo
5:00 pm - 10:32 pmBNA  Nashville Intl-IDA Idaho Falls Fanning Field
6h 32m1 stop Salt Lake City
Delta Logo
3:17 pm - 10:50 pmIDA  Idaho Falls Fanning Field-BNA Nashville Intl
6h 33m1 stop Salt Lake City
$444Delta
Sat, Aug 29 - Sun, Aug 30
Delta Logo
1:06 pm - 10:32 pmLEX  Lexington Blue Grass-IDA Idaho Falls Fanning Field
11h 26m2 stops Atlanta Hartsfield-Jackson Salt Lake City
Delta Logo
11:35 am - 11:59 pmIDA  Idaho Falls Fanning Field-LEX Lexington Blue Grass
10h 24m2 stops Salt Lake City Atlanta Hartsfield-Jackson
$454Delta
Sat, Aug 29 - Wed, Sep 2

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American Airlines flights from Kentucky to Idaho Falls

Our best American Airlines deals on Kentucky to Idaho Falls flight tickets
American Airlines
Jan 25
BNA7:00 amNashville Intl
7h 18m
1 stop
IDA1:18 pmIdaho Falls Fanning Field
Feb 1
IDA1:48 pmIdaho Falls Fanning Field
8h 36m
1 stop
BNA11:24 pmNashville Intl
$339
American Airlines
Jan 25
BNA12:42 pmNashville Intl
10h 54m
2 stops
IDA10:36 pmIdaho Falls Fanning Field
Feb 1
IDA1:48 pmIdaho Falls Fanning Field
8h 36m
1 stop
BNA11:24 pmNashville Intl
$357
American Airlines
Aug 29
LEX6:30 amLexington Blue Grass
8h 39m
1 stop
IDA1:09 pmIdaho Falls Fanning Field
Sep 5
IDA12:06 pmIdaho Falls Fanning Field
9h 13m
1 stop
LEX11:19 pmLexington Blue Grass
$374

Alaska Airlines flights from Kentucky to Idaho Falls

Our best Alaska Airlines deals on Kentucky to Idaho Falls flight tickets
Alaska Airlines
Sep 22
BNA7:00 amNashville Intl
9h 20m
1 stop
IDA3:20 pmIdaho Falls Fanning Field
Sep 29
IDA2:01 pmIdaho Falls Fanning Field
8h 58m
1 stop
BNA11:59 pmNashville Intl
$381
Alaska Airlines
Sep 22
BNA10:15 amNashville Intl
13h 41m
2 stops
IDA10:56 pmIdaho Falls Fanning Field
Sep 29
IDA2:01 pmIdaho Falls Fanning Field
8h 58m
1 stop
BNA11:59 pmNashville Intl
$406
Alaska Airlines
Sep 15
BNA9:03 amNashville Intl
14h 53m
1 stop
IDA10:56 pmIdaho Falls Fanning Field
Sep 22
IDA3:57 pmIdaho Falls Fanning Field
24h 25m
2 stops
BNA5:22 pmNashville Intl
$417

momondo Fare Finder

 
Customize your flight search to find flights from Kentucky to Idaho Falls 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 August 17, 2026.
Use the filters below to find and compare flights from Kentucky to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

NashvilleIdaho Falls

BNA Nashville Intl - IDA Idaho Falls Fanning Field

BNAIDA

Nashville Intl

Mon 1/25

7:00 am-1:18 pm

1 stop7h 18m

Idaho Falls Fanning Field

Mon 2/1

1:48 pm-11:24 pm

1 stop8h 36m

$339

NashvilleIdaho Falls

BNA Nashville Intl - IDA Idaho Falls Fanning Field

BNAIDA

Nashville Intl

Mon 1/25

12:42 pm-10:36 pm

2 stops10h 54m

Idaho Falls Fanning Field

Mon 2/1

1:48 pm-11:24 pm

1 stop8h 36m

$357

NashvilleIdaho Falls

BNA Nashville Intl - IDA Idaho Falls Fanning Field

BNAIDA

Nashville Intl

Thu 9/24

1:49 pm-11:58 am

1 stop23h 09m

Idaho Falls Fanning Field

Mon 9/28

6:21 pm-2:18 pm

2 stops18h 57m

$371
Quickest round-trip

LouisvilleIdaho Falls

SDF Louisville Intl - IDA Idaho Falls Fanning Field

SDFIDA

Louisville Intl

Thu 8/27

8:00 am-1:29 pm

1 stop7h 29m

Idaho Falls Fanning Field

Sat 9/5

7:00 am-2:29 pm

1 stop5h 29m

$374

LexingtonIdaho Falls

LEX Lexington Blue Grass - IDA Idaho Falls Fanning Field

LEXIDA

Lexington Blue Grass

Sat 8/29

6:30 am-1:09 pm

1 stop8h 39m

Idaho Falls Fanning Field

Sat 9/5

12:06 pm-11:19 pm

1 stop9h 13m

$374

LexingtonIdaho Falls

LEX Lexington Blue Grass - IDA Idaho Falls Fanning Field

LEXIDA

Lexington Blue Grass

Sat 8/29

7:00 am-3:23 pm

2 stops10h 23m

Idaho Falls Fanning Field

Sat 9/5

2:25 pm-10:38 pm

1 stop6h 13m

$379

NashvilleIdaho Falls

BNA Nashville Intl - IDA Idaho Falls Fanning Field

BNAIDA

Nashville Intl

Tue 9/22

7:00 am-3:20 pm

1 stop9h 20m

Idaho Falls Fanning Field

Tue 9/29

2:01 pm-11:59 pm

1 stop8h 58m

$381

NashvilleIdaho Falls

BNA Nashville Intl - IDA Idaho Falls Fanning Field

BNAIDA

Nashville Intl

Tue 9/22

10:15 am-10:56 pm

2 stops13h 41m

Idaho Falls Fanning Field

Tue 9/29

2:01 pm-11:59 pm

1 stop8h 58m

$406

NashvilleIdaho Falls

BNA Nashville Intl - IDA Idaho Falls Fanning Field

BNAIDA

Nashville Intl

Sat 8/29

5:00 pm-10:32 pm

1 stop6h 32m

Idaho Falls Fanning Field

Sun 8/30

3:17 pm-10:50 pm

1 stop6h 33m

$444

LexingtonIdaho Falls

LEX Lexington Blue Grass - IDA Idaho Falls Fanning Field

LEXIDA

Lexington Blue Grass

Sat 8/29

1:06 pm-10:32 pm

2 stops11h 26m

Idaho Falls Fanning Field

Wed 9/2

11:35 am-11:59 pm

2 stops10h 24m

$454

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Kentucky to Idaho Falls

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 airline that flies from Kentucky to Idaho Falls Fanning Field?

Allegiant Air, Alaska Airlines, and Delta are the most popular carriers operating from Kentucky to Idaho Falls Fanning Field

Cheap Kentucky to Idaho Falls flight deals and tips

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

Fastest flight time

6h 12m

Direct flights

None
The fastest flight from Kentucky to Idaho Falls takes 6h 12m
There are no direct flights from Kentucky to Idaho Falls. There are no popular flight routes from Kentucky to Idaho Falls.
Search flight deals

Frequently asked questions about flying from Kentucky to Idaho Falls

  • When did momondo last update prices for flights from Kentucky to Idaho Falls Fanning Field Airport?

    Prices for flights from Kentucky to Idaho Falls Fanning Field Airport were last updated today.

  • How many operators does momondo search for flights from Kentucky to Idaho Falls Fanning Field Airport?

  • How old do you have to be to fly from Kentucky to Idaho Falls Fanning Field Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Kentucky to Idaho Falls Fanning Field Airport.

  • What documentation or ID do you need to fly to Idaho Falls Fanning Field Airport?

    The travel and health documents required for your trip to Idaho Falls Fanning Field Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Idaho Falls Fanning Field Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Kentucky to Idaho Falls

Compare and see reviews for airlines that fly from Kentucky to Idaho Falls with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $341Free CancellationRating
7.4
10,106 reviews
Search United Airlines flights

Traveling to a place near Idaho Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
Rexburg

Why use momondo?

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

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

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

Flights from Kentucky to Idaho Falls with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Kentucky to Idaho Falls?

momondo helps you find the best flight between Kentucky and Idaho Falls 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 Kentucky to Idaho Falls right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Idaho Falls from Kentucky. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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