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Idaho

$90+ Cheap flights from Tennessee to Idaho

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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
BNA — BOI
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Tennessee to Idaho

Keep the following information in mind while searching for Tennessee to Idaho flight deals. Data was last updated September 15, 2025.

Round-trip from

$155
(Frontier)

One-way from

$90
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$324
From Tennessee to Idaho
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One-way flight from Tennessee to Idaho
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Highest demand for flights based on searches. 9% potential increase in price ($38 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Tennessee to Idaho

Cheapest flights from Tennessee to Idaho
Explore the most affordable flight options available from Tennessee to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Frontier deal was found by Cheapflights users on 9/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/166:12 amBNA - BOI
1 stop6h 31mFrontier
Thu 10/2312:28 pmBOI - BNA
1 stop21h 12mFrontier
Deal found 9/15$155
This Frontier deal was found by Cheapflights users on 9/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/166:12 amBNA - BOI
1 stop6h 31mFrontier
Sun 10/1912:28 pmBOI - BNA
1 stop10h 31mFrontier
Deal found 9/13$184
This Frontier deal was found by Cheapflights users on 9/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/286:15 amBNA - BOI
1 stop6h 22mFrontier
Thu 10/212:22 pmBOI - BNA
1 stop11h 18mFrontier
Deal found 9/13$201
This Priceline deal was found by Cheapflights users on 9/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/36:15 amBNA - GEG
1 stop6h 43mFrontier
Sun 10/511:53 amGEG - BNA
1 stop6h 50mFrontier
Deal found 9/15$240
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/277:00 amBNA - BOI
1 stop29h 37mFrontier
Sun 10/512:22 pmBOI - BNA
1 stop11h 18mFrontier
Deal found 9/13$249
This American Airlines deal was found by Cheapflights users on 9/15. 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 10/145:00 amBNA - GEG
1 stop8h 43mAmerican Airlines
Wed 10/221:12 pmGEG - BNA
1 stop8h 40mAmerican Airlines
Deal found 9/15$271
This Delta deal was found by Cheapflights users on 9/15. 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.
Tue 10/145:15 amBNA - GEG
2 stops10h 14mDelta
Wed 10/221:10 pmGEG - BNA
1 stop6h 50mDelta
Deal found 9/15$276
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/303:42 pmBNA - GEG
2 stops29h 06mMultiple Airlines
Sun 11/29:04 pmGEG - BNA
1 stop14h 44mMultiple Airlines
Deal found 9/15$285
This Hawaiian Airlines deal was found by Cheapflights users on 9/15. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/156:04 pmBNA - GEG
1 stop7h 04mHawaiian Airlines
Sun 10/198:54 pmGEG - BNA
1 stop6h 46mHawaiian Airlines
Deal found 9/15$294
This Delta deal was found by Cheapflights users on 9/14. 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 10/107:15 pmBNA - GEG
1 stop6h 28mDelta
Mon 11/31:10 pmGEG - BNA
1 stop6h 50mDelta
Deal found 9/14$295
This American Airlines deal was found by Cheapflights users on 9/12. 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.
Mon 10/203:42 pmMEM - BOI
1 stop7h 42mAmerican Airlines
Wed 10/221:26 pmBOI - MEM
1 stop9h 33mAmerican Airlines
Deal found 9/12$297
This Expedia deal was found by Cheapflights users on 9/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/96:12 amBNA - GEG
1 stop6h 56mMultiple Airlines
Tue 10/147:34 pmGEG - BNA
1 stop8h 06mMultiple Airlines
Deal found 9/13$298

Cheapflights Fare Finder

 
Customize your flight search to find flights from Tennessee to Idaho 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 September 15, 2025.
Use the filters below to find and compare flights from Tennessee to Idaho that are best for you.

Fly from

Tennessee

Fly to

Idaho

Route

Depart

Return

Price

NashvilleBoise

BNA - BOI

BNABOI

Nashville Intl

Thu 10/16

6:12 am-11:43 am

1 stop6h 31m

Boise Air Term. Gowen Fld

Thu 10/23

12:28 pm-10:40 am

1 stop21h 12m

$155

NashvilleBoise

BNA - BOI

BNABOI

Nashville Intl

Tue 3/3

6:00 am-2:09 pm

1 stop9h 09m

Boise Air Term. Gowen Fld

Wed 3/4

1:10 pm-10:20 pm

1 stop8h 10m

$203

NashvilleBoise

BNA - BOI

BNABOI

Nashville Intl

Thu 10/16

6:12 am-11:43 am

1 stop6h 31m

Boise Air Term. Gowen Fld

Sun 10/19

12:28 pm-11:59 pm

1 stop10h 31m

$205

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Sat 2/21

6:45 am-2:09 pm

1 stop9h 24m

Boise Air Term. Gowen Fld

Tue 2/24

3:00 pm-11:00 pm

1 stop6h 00m

$243

NashvilleBoise

BNA - BOI

BNABOI

Nashville Intl

Sat 9/27

7:00 am-11:37 am

1 stop29h 37m

Boise Air Term. Gowen Fld

Sun 10/5

12:22 pm-12:40 am

1 stop11h 18m

$249

NashvilleSpokane

BNA - GEG

BNAGEG

Nashville Intl

Tue 10/14

5:15 am-1:29 pm

2 stops10h 14m

Spokane

Wed 10/22

1:10 pm-10:00 pm

1 stop6h 50m

$276

NashvilleSpokane

BNA - GEG

BNAGEG

Nashville Intl

Wed 10/15

6:04 pm-11:08 pm

1 stop7h 04m

Spokane

Sun 10/19

7:34 pm-5:40 am

1 stop8h 06m

$294

NashvilleSpokane

BNA - GEG

BNAGEG

Nashville Intl

Fri 10/10

7:15 pm-11:43 pm

1 stop6h 28m

Spokane

Mon 11/3

1:10 pm-10:00 pm

1 stop6h 50m

$295

NashvilleBoise

BNA - BOI

BNABOI

Nashville Intl

Fri 10/24

6:12 am-11:43 am

1 stop6h 31m

Boise Air Term. Gowen Fld

Wed 10/29

2:20 pm-12:17 am

1 stop8h 57m

$298

MemphisJackson

MEM - JAC

MEMJAC

Memphis

Tue 10/14

8:56 am-3:13 pm

1 stop7h 17m

Jackson Hole

Tue 10/21

10:45 am-9:48 pm

2 stops10h 03m

$304

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 60 results
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Best time to book a flight from Tennessee to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho 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

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

Currently, October is the cheapest month in which you can book a flight from Tennessee to Idaho (average of $314). Flying from Tennessee to Idaho in June is currently the most expensive (average of $398). 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.

What is the cheapest time of day to fly from TN to ID?

Find hourly flight availability from Tennessee to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Tennessee to Idaho as you normally would.

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho. Reviews last updated September 15, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from Tennessee to Idaho. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Southwest
8.0
Very good
4,242 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,954 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,929 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

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

  • How long is the flight from Tennessee to Idaho?

    There are many flights that can get you from Tennessee to Idaho in 6h 31m. Fly via Frontier, Delta, or Hawaiian Airlines to get the fastest option. The distance from Tennessee to Idaho is about 1638 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Tennessee to Idaho one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $90. Delta flights start at $153 while deals on American Airlines start at $153 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Tennessee to Idaho 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?

    Currently, October is the cheapest month in which you can book a flight from Tennessee to Idaho (average of $314). Flying from Tennessee to Idaho in June is currently the most expensive (average of $398). 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

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Alternative routes for Tennessee to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Tennessee to Idaho

Discover the top 6 airlines that operate flights from Tennessee to Idaho. 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$172Average$560FlexibilityNo cancel feeOn-time71%
DeltaCheapest$193Average$599FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$199Average$295FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$237Average$372FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$313Average$524FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$339Average$431FlexibilityNo cancel feeOn-time63%

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