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Idaho Falls

$225+ Cheap flights from Tennessee to Idaho Falls (IDA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/21. Fares are subject to change and may not be available on all flights or dates of travel.
BNA — IDA
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Tennessee to Idaho Falls

Cheapest flights from Tennessee to Idaho Falls
Explore the most affordable flight options available from Tennessee to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This United Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/248:45 am
TYS
-
IDA
1 stop6h 45m
United Airlines
Tue 3/32:40 pm
IDA
-
TYS
1 stop5h 50m
United Airlines
Deal found 1/27$309
This Delta deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/204:55 pm
BNA
-
IDA
1 stop6h 26m
Delta
Sat 2/281:10 pm
IDA
-
BNA
1 stop7h 50m
Delta
Deal found 1/28$314
This United Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/207:00 am
BNA
-
IDA
1 stop7h 30m
United Airlines
Wed 2/252:40 pm
IDA
-
BNA
1 stop5h 56m
United Airlines
Deal found 1/27$349
This United Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/268:40 am
MEM
-
IDA
1 stop5h 50m
United Airlines
Thu 3/52:35 pm
IDA
-
MEM
1 stop5h 04m
United Airlines
Deal found 1/27$394
This Delta deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/134:55 pm
BNA
-
IDA
1 stop6h 26m
Delta
Sat 2/141:10 pm
IDA
-
BNA
1 stop7h 50m
Delta
Deal found 1/28$399
This United Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/256:45 am
TYS
-
IDA
2 stops8h 45m
United Airlines
Wed 3/42:40 pm
IDA
-
TYS
1 stop5h 50m
United Airlines
Deal found 1/26$413
This American Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/2412:21 pm
TYS
-
IDA
2 stops13h 03m
American Airlines
Tue 3/36:18 am
IDA
-
TYS
2 stops12h 39m
American Airlines
Deal found 1/27$425
This Delta deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/181:00 pm
TYS
-
IDA
2 stops11h 21m
Delta
Tue 2/246:35 pm
IDA
-
TYS
2 stops12h 29m
Delta
Deal found 1/27$435
This Delta deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/204:55 pm
BNA
-
IDA
1 stop6h 26m
Delta
Sun 3/16:35 pm
IDA
-
BNA
2 stops12h 42m
Delta
Deal found 1/28$442
This American Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/1412:21 pm
TYS
-
IDA
2 stops13h 03m
American Airlines
Sun 2/156:03 am
IDA
-
TYS
2 stops13h 04m
American Airlines
Deal found 1/28$449
This United Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/258:36 am
MEM
-
IDA
1 stop5h 48m
United Airlines
Tue 6/22:31 pm
IDA
-
MEM
1 stop5h 43m
United Airlines
Deal found 1/27$449
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/207:00 am
BNA
-
IDA
1 stop7h 30m
United Airlines
Sat 2/2810:45 am
IDA
-
BNA
2 stops10h 08m
United Airlines
Deal found 1/28$455

Find flight deals from Tennessee to Idaho Falls

Keep the following information in mind while searching for Tennessee to Idaho Falls flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$309
(United Airlines)

One-way from

$225
(United Airlines)

Popular in

December

Cheapest in

August

Average price

$682
Provider with most accurate pricing for Nashville Intl-Idaho Falls Fanning Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Nashville Intl-Idaho Falls Fanning Field flights.
Search Deals
From Tennessee to Idaho Falls Fanning Field
Search Deals
One-way flight from Tennessee to Idaho Falls Fanning Field
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($101 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Tennessee to Idaho Falls that are best for you.

Fly from

Tennessee

Fly to

Idaho Falls

Route

Depart

Return

Price

KnoxvilleIdaho Falls

TYS - IDA

TYSIDA

Knoxville McGhee Tyson

Tue 2/24

6:45 am-3:40 pm

2 stops10h 55m

Idaho Falls Fanning Field

Tue 3/3

2:40 pm-10:30 pm

1 stop5h 50m

$314

NashvilleIdaho Falls

BNA - IDA

BNAIDA

Nashville Intl

Fri 2/20

4:55 pm-10:21 pm

1 stop6h 26m

Idaho Falls Fanning Field

Sat 2/28

1:10 pm-10:00 pm

1 stop7h 50m

$314

NashvilleIdaho Falls

BNA - IDA

BNAIDA

Nashville Intl

Fri 2/20

7:00 am-1:30 pm

1 stop7h 30m

Idaho Falls Fanning Field

Wed 2/25

2:40 pm-9:36 pm

1 stop5h 56m

$349

MemphisIdaho Falls

MEM - IDA

MEMIDA

Memphis

Thu 2/26

8:40 am-1:30 pm

1 stop5h 50m

Idaho Falls Fanning Field

Thu 3/5

2:35 pm-8:39 pm

1 stop5h 04m

$394

NashvilleIdaho Falls

BNA - IDA

BNAIDA

Nashville Intl

Fri 2/13

4:55 pm-10:21 pm

1 stop6h 26m

Idaho Falls Fanning Field

Sat 2/14

1:10 pm-10:00 pm

1 stop7h 50m

$399

KnoxvilleIdaho Falls

TYS - IDA

TYSIDA

Knoxville McGhee Tyson

Tue 2/24

12:21 pm-11:24 pm

2 stops13h 03m

Idaho Falls Fanning Field

Tue 3/3

6:18 am-8:57 pm

2 stops12h 39m

$425

KnoxvilleIdaho Falls

TYS - IDA

TYSIDA

Knoxville McGhee Tyson

Wed 2/18

1:00 pm-10:21 pm

2 stops11h 21m

Idaho Falls Fanning Field

Tue 2/24

6:35 pm-9:04 am

2 stops12h 29m

$435

NashvilleIdaho Falls

BNA - IDA

BNAIDA

Nashville Intl

Fri 2/20

4:55 pm-10:21 pm

1 stop6h 26m

Idaho Falls Fanning Field

Sun 3/1

6:35 pm-8:17 am

2 stops12h 42m

$442

KnoxvilleIdaho Falls

TYS - IDA

TYSIDA

Knoxville McGhee Tyson

Sat 2/14

12:21 pm-11:24 pm

2 stops13h 03m

Idaho Falls Fanning Field

Sun 2/15

6:03 am-9:07 pm

2 stops13h 04m

$449

MemphisIdaho Falls

MEM - IDA

MEMIDA

Memphis

Mon 5/25

8:36 am-1:24 pm

1 stop5h 48m

Idaho Falls Fanning Field

Tue 6/2

2:31 pm-9:14 pm

1 stop5h 43m

$449

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 42 results
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Best time to book a flight from Tennessee to Idaho Falls

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Tennessee with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Tennessee to Idaho Falls

What is the cheapest month to book a flight from Tennessee to Idaho Falls?

Currently, June is the cheapest month in which you can book a flight from Tennessee to Idaho Falls (average of $205). Flying from Tennessee to Idaho Falls in May is currently the most expensive (average of $372). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Tennessee to Idaho Falls?

Related info for your journey

Find useful and relevant information for your journey from Tennessee to Idaho Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Idaho Falls from Tennessee?

    If you book a flight to Idaho Falls from Tennessee, you will be flying to Fanning Field, which is the city’s only airport. Idaho Falls Fanning Field (IDA) is located 3.8 mi from the center of Idaho Falls.

  • How long is the flight from Tennessee to Idaho Falls?

    A quick flight from Tennessee to Idaho Falls can take about 6h 26m. United Airlines provides one of the quickest options available for as low as $314. Airlines will cover a distance of 1433 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Tennessee to Idaho Falls?

    The most popular flight routes from Tennessee to Idaho Falls are Nashville Intl - Idaho Falls Fanning Field, Knoxville McGhee Tyson - Idaho Falls Fanning Field and Memphis - Idaho Falls Fanning Field.

  • Can I find deals for flights from Tennessee to Idaho Falls that include hotel bookings?

    Yes. In addition to deals on Tennessee to Idaho Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Tennessee to Idaho Falls?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Tennessee to Idaho Falls.

  • Can I find deals for business class flights from Tennessee to Idaho Falls?

    Yes. Cheapflights offers flight deals from Tennessee to Idaho Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Tennessee to Idaho Falls?

    Currently, June is the cheapest month in which you can book a flight from Tennessee to Idaho Falls (average of $205). Flying from Tennessee to Idaho Falls in May is currently the most expensive (average of $372). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Idaho Falls?

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

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Top 3 airlines flying from Tennessee to Idaho Falls

Discover the top 3 airlines that operate flights from Tennessee to Idaho Falls. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$193Average$632FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$268Average$621FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$368Average$573FlexibilityNo cancel feeOn-time69%

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