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Cheap flights from Kentucky to Idaho Falls from $246

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 6/29. 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

Discover deals from 900+ travel sites with momondo.

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
8:00 am - 1:44 pm
BNA
-
IDA
6h 44m
1 stop
American Airlines Logo
1:58 pm - 9:31 pm
IDA
-
BNA
6h 33m
1 stop
$311American Airlines
Tue, Oct 20 - Tue, Nov 3
Delta Logo
7:35 am - 2:36 pm
BNA
-
IDA
8h 01m
1 stop
Delta Logo
11:25 am - 6:13 pm
IDA
-
BNA
5h 48m
1 stop
$320Delta
Tue, Jul 14 - Sun, Jul 19
United Airlines Logo
5:25 am - 11:38 am
CVG
-
IDA
8h 13m
1 stop
United Airlines Logo
12:33 pm - 8:43 pm
IDA
-
CVG
6h 10m
1 stop
$329United Airlines
Sat, Aug 29 - Sat, Sep 5
United Airlines Logo
9:00 am - 5:16 pm
CVG
-
IDA
10h 16m
2 stops
United Airlines Logo
12:33 pm - 8:43 pm
IDA
-
CVG
6h 10m
1 stop
$334United Airlines
Sat, Aug 29 - Sat, Sep 5
Alaska Airlines Logo
7:02 am - 3:37 pm
BNA
-
IDA
9h 35m
1 stop
Alaska Airlines Logo
4:14 pm - 5:00 pm
IDA
-
BNA
23h 46m
1 stop
$339Alaska Airlines
Wed, Aug 12 - Sun, Aug 16
United Airlines Logo
5:25 am - 1:29 pm
CVG
-
IDA
10h 04m
2 stops
United Airlines Logo
12:33 pm - 8:43 pm
IDA
-
CVG
6h 10m
1 stop
$359United Airlines
Sat, Aug 29 - Sat, Sep 5
Multiple Airlines Logo
2:51 pm - 8:59 am
TYS
-
IDA
20h 08m
1 stop
Multiple Airlines Logo
5:33 pm - 2:59 pm
IDA
-
TYS
43h 26m
2 stops
$363Multiple Airlines
Sun, Aug 16 - Mon, Aug 24
Alaska Airlines Logo
7:00 am - 3:35 pm
BNA
-
IDA
9h 35m
1 stop
Alaska Airlines Logo
6:09 am - 3:58 pm
IDA
-
BNA
8h 49m
1 stop
$370Alaska Airlines
Wed, Oct 28 - Sat, Oct 31
Multiple Airlines Logo
2:51 pm - 8:59 am
TYS
-
IDA
20h 08m
1 stop
Multiple Airlines Logo
6:09 pm - 1:49 pm
IDA
-
TYS
41h 40m
2 stops
$427Multiple Airlines
Sun, Aug 16 - Fri, Aug 28
Allegiant Air Logo
2:44 pm - 11:34 am
CVG
-
IDA
22h 50m
1 stop
Allegiant Air Logo
9:52 am - 3:27 pm
IDA
-
CVG
27h 35m
1 stop
$456Allegiant Air
Sun, Sep 27 - Fri, Oct 2

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United Airlines flights from Kentucky to Idaho Falls

Our best United Airlines deals on Kentucky to Idaho Falls flight tickets
United Airlines
Aug 29
CVG5:25 amCincinnati Cinci./N. Kentucky
8h 13m
1 stop
IDA11:38 amIdaho Falls Fanning Field
Sep 5
IDA12:33 pmIdaho Falls Fanning Field
6h 10m
1 stop
CVG8:43 pmCincinnati Cinci./N. Kentucky
$329
United Airlines
Aug 29
CVG9:00 amCincinnati Cinci./N. Kentucky
10h 16m
2 stops
IDA5:16 pmIdaho Falls Fanning Field
Sep 5
IDA12:33 pmIdaho Falls Fanning Field
6h 10m
1 stop
CVG8:43 pmCincinnati Cinci./N. Kentucky
$334
United Airlines
Aug 29
CVG5:25 amCincinnati Cinci./N. Kentucky
10h 04m
2 stops
IDA1:29 pmIdaho Falls Fanning Field
Sep 5
IDA12:33 pmIdaho Falls Fanning Field
6h 10m
1 stop
CVG8:43 pmCincinnati Cinci./N. Kentucky
$359

Delta flights from Kentucky to Idaho Falls

Our best Delta deals on Kentucky to Idaho Falls flight tickets
Delta
Jul 14
BNA7:35 amNashville Intl
8h 01m
1 stop
IDA2:36 pmIdaho Falls Fanning Field
Jul 19
IDA11:25 amIdaho Falls Fanning Field
5h 48m
1 stop
BNA6:13 pmNashville Intl
$320
Delta
Aug 12
BNA5:00 pmNashville Intl
6h 32m
1 stop
IDA10:32 pmIdaho Falls Fanning Field
Aug 16
IDA7:00 pmIdaho Falls Fanning Field
12h 30m
2 stops
BNA8:30 amNashville Intl
$380
Delta
Jul 9
BNA2:01 pmNashville Intl
5h 17m
1 stop
IDA6:18 pmIdaho Falls Fanning Field
Jul 14
IDA11:25 amIdaho Falls Fanning Field
5h 48m
1 stop
BNA6:13 pmNashville Intl
$424

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 June 12, 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
Quickest round-trip

NashvilleIdaho Falls

BNA - IDA

BNAIDA

Nashville Intl

Tue 10/20

8:00 am-1:44 pm

1 stop6h 44m

Idaho Falls Fanning Field

Tue 11/3

1:58 pm-9:31 pm

1 stop6h 33m

$311

NashvilleIdaho Falls

BNA - IDA

BNAIDA

Nashville Intl

Tue 7/14

7:35 am-2:36 pm

1 stop8h 01m

Idaho Falls Fanning Field

Sun 7/19

11:25 am-6:13 pm

1 stop5h 48m

$320

CincinnatiIdaho Falls

CVG - IDA

CVGIDA

Cincinnati Cinci./N. Kentucky

Sat 8/29

5:25 am-11:38 am

1 stop8h 13m

Idaho Falls Fanning Field

Sat 9/5

12:33 pm-8:43 pm

1 stop6h 10m

$329

CincinnatiIdaho Falls

CVG - IDA

CVGIDA

Cincinnati Cinci./N. Kentucky

Sat 8/29

9:00 am-5:16 pm

2 stops10h 16m

Idaho Falls Fanning Field

Sat 9/5

12:33 pm-8:43 pm

1 stop6h 10m

$334

NashvilleIdaho Falls

BNA - IDA

BNAIDA

Nashville Intl

Wed 8/12

7:02 am-3:37 pm

1 stop9h 35m

Idaho Falls Fanning Field

Sun 8/16

4:14 pm-5:00 pm

1 stop23h 46m

$339

CincinnatiIdaho Falls

CVG - IDA

CVGIDA

Cincinnati Cinci./N. Kentucky

Sat 8/29

5:25 am-1:29 pm

2 stops10h 04m

Idaho Falls Fanning Field

Sat 9/5

12:33 pm-8:43 pm

1 stop6h 10m

$359

KnoxvilleIdaho Falls

TYS - IDA

TYSIDA

Knoxville McGhee Tyson

Sun 8/16

2:51 pm-8:59 am

1 stop20h 08m

Idaho Falls Fanning Field

Mon 8/24

5:33 pm-2:59 pm

2 stops43h 26m

$363

NashvilleIdaho Falls

BNA - IDA

BNAIDA

Nashville Intl

Wed 10/28

7:00 am-3:35 pm

1 stop9h 35m

Idaho Falls Fanning Field

Sat 10/31

6:09 am-3:58 pm

1 stop8h 49m

$370

KnoxvilleIdaho Falls

TYS - IDA

TYSIDA

Knoxville McGhee Tyson

Sun 8/16

2:51 pm-8:59 am

1 stop20h 08m

Idaho Falls Fanning Field

Fri 8/28

6:09 pm-1:49 pm

2 stops41h 40m

$427

CincinnatiIdaho Falls

CVG - IDA

CVGIDA

Cincinnati Cinci./N. Kentucky

Sun 9/27

2:44 pm-11:34 am

1 stop22h 50m

Idaho Falls Fanning Field

Fri 10/2

9:52 am-3:27 pm

1 stop27h 35m

$456

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Idaho Falls from

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?

Delta, Alaska Airlines, and American Airlines 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

5h 33m

Direct flights

None
The fastest flight from Kentucky to Idaho Falls takes 5h 33m
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
9,810 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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