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Cheap flights from Tennessee to Idaho Falls from $166

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Tennessee to Idaho Falls departing on 10/21. 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 Tennessee to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
1:49 pm - 11:50 amBNA  Nashville Intl-IDA Idaho Falls Fanning Field
23h 01m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
6:21 pm - 8:48 amIDA  Idaho Falls Fanning Field-BNA Nashville Intl
13h 27m2 stops Las Vegas Harry Reid Intl Orlando
$347Multiple Airlines
Thu, Sep 10 - Mon, Sep 14
Alaska Airlines Logo
5:14 pm - 1:24 pmBNA  Nashville Intl-IDA Idaho Falls Fanning Field
21h 10m1 stop Portland
Alaska Airlines Logo
2:01 pm - 11:59 pmIDA  Idaho Falls Fanning Field-BNA Nashville Intl
8h 58m1 stop Seattle/Tacoma Intl
$360Alaska Airlines
Fri, Sep 11 - Sat, Sep 19
United Airlines Logo
8:00 am - 3:23 pmBNA  Nashville Intl-IDA Idaho Falls Fanning Field
8h 23m1 stop Denver Intl
United Airlines Logo
4:05 pm - 11:59 pmIDA  Idaho Falls Fanning Field-BNA Nashville Intl
6h 54m1 stop Denver Intl
$365United Airlines
Tue, Sep 22 - Sun, Sep 27
United Airlines Logo
4:15 pm - 9:18 pmBNA  Nashville Intl-IDA Idaho Falls Fanning Field
6h 03m1 stop Denver Intl
United Airlines Logo
4:05 pm - 11:59 pmIDA  Idaho Falls Fanning Field-BNA Nashville Intl
6h 54m1 stop Denver Intl
$378United Airlines
Tue, Sep 22 - Sun, Sep 27
United Airlines Logo
7:00 am - 1:24 pmBNA  Nashville Intl-IDA Idaho Falls Fanning Field
7h 24m1 stop Denver Intl
United Airlines Logo
2:28 pm - 9:15 pmIDA  Idaho Falls Fanning Field-BNA Nashville Intl
5h 47m1 stop Denver Intl
$399United Airlines
Fri, Oct 2 - Mon, Oct 5
Alaska Airlines Logo
5:14 pm - 1:21 pmBNA  Nashville Intl-IDA Idaho Falls Fanning Field
21h 07m1 stop Portland
Alaska Airlines Logo
3:57 pm - 5:16 pmIDA  Idaho Falls Fanning Field-BNA Nashville Intl
24h 19m2 stops Portland Dallas/Fort Worth
$405Alaska Airlines
Fri, Oct 2 - Mon, Oct 5
American Airlines Logo
3:10 pm - 9:42 pmBNA  Nashville Intl-IDA Idaho Falls Fanning Field
7h 32m1 stop Dallas/Fort Worth
American Airlines Logo
1:50 pm - 8:40 amIDA  Idaho Falls Fanning Field-BNA Nashville Intl
17h 50m1 stop Chicago O'Hare Intl
$421American Airlines
Fri, Oct 16 - Mon, Oct 19
American Airlines Logo
6:03 am - 11:30 amTYS  Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field
7h 27m1 stop Dallas/Fort Worth
American Airlines Logo
12:06 pm - 9:53 pmIDA  Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson
7h 47m1 stop Dallas/Fort Worth
$429American Airlines
Tue, Aug 25 - Sat, Aug 29
Delta Logo
10:04 am - 6:20 pmBNA  Nashville Intl-IDA Idaho Falls Fanning Field
9h 16m2 stops Minneapolis St Paul Salt Lake City
Delta Logo
11:35 am - 6:13 pmIDA  Idaho Falls Fanning Field-BNA Nashville Intl
5h 38m1 stop Salt Lake City
$446Delta
Tue, Aug 25 - Fri, Aug 28
Delta Logo
2:24 pm - 10:32 pmBNA  Nashville Intl-IDA Idaho Falls Fanning Field
9h 08m2 stops Atlanta Hartsfield-Jackson Salt Lake City
Delta Logo
7:00 pm - 8:30 amIDA  Idaho Falls Fanning Field-BNA Nashville Intl
12h 30m2 stops Salt Lake City Atlanta Hartsfield-Jackson
$452Delta
Tue, Aug 25 - Fri, Aug 28

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United Airlines flights from Tennessee to Idaho Falls

Our best United Airlines deals on Tennessee to Idaho Falls flight tickets
United Airlines
Sep 22
BNA8:00 amNashville Intl
8h 23m
1 stop
IDA3:23 pmIdaho Falls Fanning Field
Sep 27
IDA4:05 pmIdaho Falls Fanning Field
6h 54m
1 stop
BNA11:59 pmNashville Intl
$365
United Airlines
Sep 22
BNA4:15 pmNashville Intl
6h 03m
1 stop
IDA9:18 pmIdaho Falls Fanning Field
Sep 27
IDA4:05 pmIdaho Falls Fanning Field
6h 54m
1 stop
BNA11:59 pmNashville Intl
$378
United Airlines
Oct 2
BNA7:00 amNashville Intl
7h 24m
1 stop
IDA1:24 pmIdaho Falls Fanning Field
Oct 5
IDA2:28 pmIdaho Falls Fanning Field
5h 47m
1 stop
BNA9:15 pmNashville Intl
$399

Alaska Airlines flights from Tennessee to Idaho Falls

Our best Alaska Airlines deals on Tennessee to Idaho Falls flight tickets
Alaska Airlines
Sep 11
BNA5:14 pmNashville Intl
21h 10m
1 stop
IDA1:24 pmIdaho Falls Fanning Field
Sep 19
IDA2:01 pmIdaho Falls Fanning Field
8h 58m
1 stop
BNA11:59 pmNashville Intl
$360
Alaska Airlines
Oct 2
BNA5:14 pmNashville Intl
21h 07m
1 stop
IDA1:21 pmIdaho Falls Fanning Field
Oct 5
IDA3:57 pmIdaho Falls Fanning Field
24h 19m
2 stops
BNA5:16 pmNashville Intl
$405
Alaska Airlines
Aug 25
BNA5:07 pmNashville Intl
21h 17m
1 stop
IDA1:24 pmIdaho Falls Fanning Field
Aug 28
IDA3:57 pmIdaho Falls Fanning Field
24h 29m
1 stop
BNA5:26 pmNashville Intl
$409

momondo Fare Finder

 
Customize your flight search to find flights from Tennessee 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 12, 2026.
Use the filters below to find and compare flights from Tennessee 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

Thu 9/10

1:49 pm-11:50 am

1 stop23h 01m

Idaho Falls Fanning Field

Mon 9/14

6:21 pm-8:48 am

2 stops13h 27m

$347

NashvilleIdaho Falls

BNA Nashville Intl - IDA Idaho Falls Fanning Field

BNAIDA

Nashville Intl

Fri 9/11

5:14 pm-1:24 pm

1 stop21h 10m

Idaho Falls Fanning Field

Sat 9/19

2:01 pm-11:59 pm

1 stop8h 58m

$360

NashvilleIdaho Falls

BNA Nashville Intl - IDA Idaho Falls Fanning Field

BNAIDA

Nashville Intl

Tue 9/22

8:00 am-3:23 pm

1 stop8h 23m

Idaho Falls Fanning Field

Sun 9/27

4:05 pm-11:59 pm

1 stop6h 54m

$365
Quickest round-trip

NashvilleIdaho Falls

BNA Nashville Intl - IDA Idaho Falls Fanning Field

BNAIDA

Nashville Intl

Tue 9/22

4:15 pm-9:18 pm

1 stop6h 03m

Idaho Falls Fanning Field

Sun 9/27

4:05 pm-11:59 pm

1 stop6h 54m

$378

NashvilleIdaho Falls

BNA Nashville Intl - IDA Idaho Falls Fanning Field

BNAIDA

Nashville Intl

Fri 10/2

7:00 am-1:24 pm

1 stop7h 24m

Idaho Falls Fanning Field

Mon 10/5

2:28 pm-9:15 pm

1 stop5h 47m

$399

NashvilleIdaho Falls

BNA Nashville Intl - IDA Idaho Falls Fanning Field

BNAIDA

Nashville Intl

Fri 10/2

5:14 pm-1:21 pm

1 stop21h 07m

Idaho Falls Fanning Field

Mon 10/5

3:57 pm-5:16 pm

2 stops24h 19m

$405

NashvilleIdaho Falls

BNA Nashville Intl - IDA Idaho Falls Fanning Field

BNAIDA

Nashville Intl

Fri 10/16

3:10 pm-9:42 pm

1 stop7h 32m

Idaho Falls Fanning Field

Mon 10/19

1:50 pm-8:40 am

1 stop17h 50m

$421

KnoxvilleIdaho Falls

TYS Knoxville McGhee Tyson - IDA Idaho Falls Fanning Field

TYSIDA

Knoxville McGhee Tyson

Tue 8/25

6:03 am-11:30 am

1 stop7h 27m

Idaho Falls Fanning Field

Sat 8/29

12:06 pm-9:53 pm

1 stop7h 47m

$429

NashvilleIdaho Falls

BNA Nashville Intl - IDA Idaho Falls Fanning Field

BNAIDA

Nashville Intl

Tue 8/25

10:04 am-6:20 pm

2 stops9h 16m

Idaho Falls Fanning Field

Fri 8/28

11:35 am-6:13 pm

1 stop5h 38m

$446

NashvilleIdaho Falls

BNA Nashville Intl - IDA Idaho Falls Fanning Field

BNAIDA

Nashville Intl

Tue 8/25

2:24 pm-10:32 pm

2 stops9h 08m

Idaho Falls Fanning Field

Fri 8/28

7:00 pm-8:30 am

2 stops12h 30m

$452

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 Tennessee 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 month to fly to Idaho Falls?

If you aren’t able to travel to Idaho Falls during the month of June, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $0.

Cheap Tennessee to Idaho Falls flight deals and tips

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

Fastest flight time

5h 38m

Direct flights

None
The fastest flight from Tennessee to Idaho Falls takes 5h 38m
There are no direct flights from Tennessee to Idaho Falls. There are no popular flight routes from Tennessee to Idaho Falls.
Search flight deals

Frequently asked questions about flying from Tennessee to Idaho Falls

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

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Tennessee 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 Tennessee to Idaho Falls

Compare and see reviews for airlines that fly from Tennessee to Idaho Falls with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $246Free CancellationRating
7.4
10,111 reviews
Search United Airlines flights
American AirlinesPriceFrom $288Free CancellationRating
7.1
11,911 reviews
Search American Airlines flights
DeltaPriceFrom $319Free CancellationRating
7.8
8,505 reviews
Search Delta 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 Tennessee to Idaho Falls?

It is quick and easy to find Tennessee to Idaho Falls flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Idaho Falls that suits you.

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

Flights from Tennessee 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 Tennessee to Idaho Falls?

Once all potential Tennessee to Idaho Falls flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Idaho Falls, momondo offers a useful price alert feature which will track prices for flights to Idaho Falls from Tennessee and alert you when they change.

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