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Cheap flights from Tennessee to Idaho Falls from $306

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Tennessee to Idaho Falls departing on 1/22. 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 Tennessee to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
7:00 am - 6:18 pm
BNA
-
IDA
12h 18m1 stop
Alaska Airlines Logo
9:00 am - 11:57 pm
IDA
-
BNA
13h 57m1 stop
$306Alaska Airlines
Thu, Jan 22 - Thu, Feb 5
Delta Logo
4:55 pm - 10:57 pm
BNA
-
IDA
7h 02m1 stop
Delta Logo
6:35 pm - 8:19 am
IDA
-
BNA
12h 44m2 stops
$332Delta
Thu, Jan 22 - Thu, Feb 5
United Airlines Logo
8:45 am - 3:31 pm
MEM
-
IDA
7h 46m1 stop
United Airlines Logo
2:40 pm - 8:41 pm
IDA
-
MEM
5h 01m1 stop
$369United Airlines
Fri, Jan 23 - Sun, Jan 25
United Airlines Logo
6:15 am - 3:31 pm
MEM
-
IDA
10h 16m2 stops
United Airlines Logo
2:40 pm - 8:41 pm
IDA
-
MEM
5h 01m1 stop
$374United Airlines
Fri, Jan 23 - Sun, Jan 25
Delta Logo
7:35 am - 5:44 pm
BNA
-
IDA
11h 09m2 stops
Delta Logo
6:59 pm - 7:42 am
IDA
-
BNA
11h 43m2 stops
$381Delta
Mon, Mar 2 - Sun, Mar 8
United Airlines Logo
7:00 am - 3:37 pm
TYS
-
IDA
10h 37m2 stops
United Airlines Logo
2:35 pm - 10:23 pm
IDA
-
TYS
5h 48m1 stop
$404United Airlines
Sat, May 2 - Tue, May 5
Alaska Airlines Logo
7:00 am - 11:36 pm
BNA
-
IDA
17h 36m1 stop
Alaska Airlines Logo
5:20 pm - 11:59 pm
IDA
-
BNA
29h 39m1 stop
$415Alaska Airlines
Sat, Feb 14 - Wed, Feb 18
United Airlines Logo
8:15 am - 3:22 pm
MEM
-
IDA
8h 07m1 stop
United Airlines Logo
4:05 pm - 10:29 pm
IDA
-
MEM
5h 24m1 stop
$419United Airlines
Thu, Jan 1 - Mon, Jan 5
American Airlines Logo
5:35 am - 1:30 pm
TYS
-
IDA
9h 55m1 stop
American Airlines Logo
2:02 pm - 11:50 pm
IDA
-
TYS
7h 48m1 stop
$521American Airlines
Mon, Feb 23 - Thu, Feb 26
American Airlines Logo
12:20 pm - 11:07 pm
TYS
-
IDA
12h 47m2 stops
American Airlines Logo
2:02 pm - 11:50 pm
IDA
-
TYS
7h 48m1 stop
$526American Airlines
Mon, Feb 23 - Thu, Feb 26

American Airlines flights from Tennessee to Idaho Falls

Our best American Airlines deals on Tennessee to Idaho Falls flight tickets
American Airlines
Feb 23
TYS5:35 amKnoxville McGhee Tyson
9h 55m
1 stop
IDA1:30 pmIdaho Falls Fanning Field
Feb 26
IDA2:02 pmIdaho Falls Fanning Field
7h 48m
1 stop
TYS11:50 pmKnoxville McGhee Tyson
$521
Find similar
American Airlines
Feb 23
TYS12:20 pmKnoxville McGhee Tyson
12h 47m
2 stops
IDA11:07 pmIdaho Falls Fanning Field
Feb 26
IDA2:02 pmIdaho Falls Fanning Field
7h 48m
1 stop
TYS11:50 pmKnoxville McGhee Tyson
$526
Find similar
American Airlines
Jan 2
BNA11:30 amNashville Intl
11h 51m
2 stops
IDA10:21 pmIdaho Falls Fanning Field
Jan 6
IDA7:20 amIdaho Falls Fanning Field
7h 08m
1 stop
BNA3:28 pmNashville Intl
$536
Find similar

United Airlines flights from Tennessee to Idaho Falls

Our best United Airlines deals on Tennessee to Idaho Falls flight tickets
United Airlines
Jan 23
MEM8:45 amMemphis
5h 45m
1 stop
IDA1:30 pmIdaho Falls Fanning Field
Jan 25
IDA6:30 amIdaho Falls Fanning Field
6h 50m
1 stop
MEM2:20 pmMemphis
$369
Find similar
United Airlines
Jan 23
MEM6:15 amMemphis
10h 16m
2 stops
IDA3:31 pmIdaho Falls Fanning Field
Jan 25
IDA2:40 pmIdaho Falls Fanning Field
5h 01m
1 stop
MEM8:41 pmMemphis
$374
Find similar
United Airlines
May 2
TYS7:00 amKnoxville McGhee Tyson
10h 37m
2 stops
IDA3:37 pmIdaho Falls Fanning Field
May 5
IDA2:35 pmIdaho Falls Fanning Field
5h 48m
1 stop
TYS10:23 pmKnoxville McGhee Tyson
$404
Find similar

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 December 18, 2025.
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

NashvilleIdaho Falls

BNA - IDA

BNAIDA

Nashville Intl

Thu 1/22

7:00 am-6:18 pm

1 stop12h 18m

Idaho Falls Fanning Field

Thu 2/5

9:00 am-11:57 pm

1 stop13h 57m

$306

NashvilleIdaho Falls

BNA - IDA

BNAIDA

Nashville Intl

Thu 1/22

4:55 pm-10:57 pm

1 stop7h 02m

Idaho Falls Fanning Field

Thu 2/5

6:35 pm-8:19 am

2 stops12h 44m

$332

MemphisIdaho Falls

MEM - IDA

MEMIDA

Memphis

Fri 1/23

8:45 am-3:31 pm

1 stop7h 46m

Idaho Falls Fanning Field

Sun 1/25

2:40 pm-8:41 pm

1 stop5h 01m

$369

MemphisIdaho Falls

MEM - IDA

MEMIDA

Memphis

Fri 1/23

6:15 am-3:31 pm

2 stops10h 16m

Idaho Falls Fanning Field

Sun 1/25

2:40 pm-8:41 pm

1 stop5h 01m

$374

NashvilleIdaho Falls

BNA - IDA

BNAIDA

Nashville Intl

Mon 3/2

7:35 am-5:44 pm

2 stops11h 09m

Idaho Falls Fanning Field

Sun 3/8

6:59 pm-7:42 am

2 stops11h 43m

$381

KnoxvilleIdaho Falls

TYS - IDA

TYSIDA

Knoxville McGhee Tyson

Sat 5/2

7:00 am-3:37 pm

2 stops10h 37m

Idaho Falls Fanning Field

Tue 5/5

2:35 pm-10:23 pm

1 stop5h 48m

$404

NashvilleIdaho Falls

BNA - IDA

BNAIDA

Nashville Intl

Sat 2/14

7:00 am-11:36 pm

1 stop17h 36m

Idaho Falls Fanning Field

Wed 2/18

5:20 pm-11:59 pm

1 stop29h 39m

$415

MemphisIdaho Falls

MEM - IDA

MEMIDA

Memphis

Thu 1/1

8:15 am-3:22 pm

1 stop8h 07m

Idaho Falls Fanning Field

Mon 1/5

4:05 pm-10:29 pm

1 stop5h 24m

$419

KnoxvilleIdaho Falls

TYS - IDA

TYSIDA

Knoxville McGhee Tyson

Mon 2/23

5:35 am-1:30 pm

1 stop9h 55m

Idaho Falls Fanning Field

Thu 2/26

2:02 pm-11:50 pm

1 stop7h 48m

$521

KnoxvilleIdaho Falls

TYS - IDA

TYSIDA

Knoxville McGhee Tyson

Mon 2/23

12:20 pm-11:07 pm

2 stops12h 47m

Idaho Falls Fanning Field

Thu 2/26

2:02 pm-11:50 pm

1 stop7h 48m

$526

Flights are sorted by cheapest round-trip flights 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 April, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $368.

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

Our data shows that Tuesday is the least expensive day to fly to Idaho Falls. Tickets to fly out on this day can be as low as $561. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Idaho Falls on Friday is $819.

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

Our most recent data shows that the best time of day to fly to Idaho Falls is in the afternoon. Flights from Tennessee to Idaho Falls during this time can be as low as $548. Try not to purchase tickets in the morning because they tend to be around $707. Of course, these prices can vary depending on the time of year and what airport you fly to.

Can stopping save me money on Tennessee to Idaho Falls flights?

You could potentially save up to 50% on your flight if you consider stops on a Tennessee to Idaho Falls flight.

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 45m

Direct flights

None
The fastest flight from Tennessee to Idaho Falls takes 5h 45m
There are no direct flights from Tennessee to Idaho Falls. There are no popular flight routes from Tennessee to Idaho Falls.
Search flight deals

  • 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
American AirlinesPriceFrom $268Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
DeltaPriceFrom $336Free CancellationRating
7.9
8,005 reviews
Search Delta flights
United AirlinesPriceFrom $368Free CancellationRating
7.4
9,091 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 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.

An easier way to manage your Idaho Falls trip

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