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Idaho

$155+ 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 6/11. Fares are subject to change and may not be available on all flights or dates of travel.
BNA — BOI
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
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 March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$258
(Alaska Airlines)

One-way from

$155
(Delta)

Popular in

December

Cheapest in

November

Average price

$397
Provider with most accurate pricing for Nashville Intl-Boise Air Term. Gowen Fld flight deals.
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Provider most trusted by Cheapflights users for Nashville Intl-Boise Air Term. Gowen Fld flights.
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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. 4% potential increase in price ($19 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 31, 2025.

This Alaska Airlines deal was found by Cheapflights users on 3/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/299:40 amBNA - BOI
1 stop9h 21mAlaska Airlines
Tue 5/64:20 pmBOI - BNA
1 stop6h 52mAlaska Airlines
Deal found 3/30$258
This Delta deal was found by Cheapflights users on 3/30. 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 4/297:25 amBNA - BOI
1 stop7h 15mDelta
Tue 5/611:25 amBOI - BNA
2 stops10h 07mDelta
Deal found 3/30$264
This Alaska Airlines deal was found by Cheapflights users on 3/31. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/95:44 pmBNA - GEG
1 stop7h 12mAlaska Airlines
Sat 8/166:07 pmGEG - BNA
1 stop9h 33mAlaska Airlines
Deal found 3/31$271
This Delta deal was found by Cheapflights users on 3/30. 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 5/166:50 amTYS - GEG
1 stop8h 56mDelta
Sun 5/1811:09 pmGEG - TYS
1 stop7h 31mDelta
Deal found 3/30$289
This Hawaiian Airlines deal was found by Cheapflights users on 3/30. 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.
Tue 4/225:52 pmBNA - GEG
1 stop7h 12mHawaiian Airlines
Sat 4/268:40 pmGEG - BNA
1 stop7h 10mHawaiian Airlines
Deal found 3/30$296
This Delta deal was found by Cheapflights users on 3/30. 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.
Sat 5/313:00 pmBNA - GEG
1 stop8h 40mDelta
Sat 6/79:55 amGEG - BNA
1 stop6h 22mDelta
Deal found 3/30$297
This American Airlines deal was found by Cheapflights users on 3/31. 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 4/263:14 pmTYS - IDA
2 stops8h 56mAmerican Airlines
Tue 4/297:43 amIDA - TYS
2 stops14h 12mAmerican Airlines
Deal found 3/31$299
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Sat 5/178:40 amBNA - BOI
1 stop8h 41mUnited Airlines
Wed 5/217:10 pmBOI - BNA
1 stop9h 23mUnited Airlines
Deal found 3/30$309
This Sun Country Air deal was found by Cheapflights users on 3/29. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/267:40 pmBNA - BOI
1 stop23h 16mSun Country Air
Sun 8/36:55 pmBOI - BNA
1 stop22h 48mSun Country Air
Deal found 3/29$315
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Sat 4/265:45 amTYS - IDA
2 stops11h 36mUnited Airlines
Tue 4/296:50 amIDA - TYS
1 stop5h 54mUnited Airlines
Deal found 3/31$330
This Travelocity deal was found by Cheapflights users on 3/30. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/215:46 pmBNA - BOI
1 stop7h 12mMultiple Airlines
Wed 4/231:52 pmBOI - BNA
2 stops19h 17mMultiple Airlines
Deal found 3/30$332
This American Airlines deal was found by Cheapflights users on 3/31. 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.
Thu 5/14:25 pmBNA - GEG
1 stop8h 34mAmerican Airlines
Mon 5/51:22 pmGEG - BNA
1 stop6h 19mAmerican Airlines
Deal found 3/31$343

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 March 31, 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

Tue 4/29

9:40 am-6:01 pm

1 stop9h 21m

Boise Air Term. Gowen Fld

Tue 5/6

4:20 pm-12:12 am

1 stop6h 52m

$258

NashvilleBoise

BNA - BOI

BNABOI

Nashville Intl

Tue 4/29

7:25 am-1:40 pm

1 stop7h 15m

Boise Air Term. Gowen Fld

Tue 5/6

11:25 am-10:32 pm

2 stops10h 07m

$264

NashvilleSpokane

BNA - GEG

BNAGEG

Nashville Intl

Sat 8/9

5:44 pm-10:56 pm

1 stop7h 12m

Spokane

Sat 8/16

6:07 pm-5:40 am

1 stop9h 33m

$271

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

Fri 5/16

6:50 am-12:46 pm

1 stop8h 56m

Spokane

Sun 5/18

11:09 pm-9:40 am

1 stop7h 31m

$289

NashvilleSpokane

BNA - GEG

BNAGEG

Nashville Intl

Tue 4/22

5:52 pm-11:04 pm

1 stop7h 12m

Spokane

Sat 4/26

8:40 pm-5:50 am

1 stop7h 10m

$296

NashvilleSpokane

BNA - GEG

BNAGEG

Nashville Intl

Sat 5/31

3:00 pm-9:40 pm

1 stop8h 40m

Spokane

Sat 6/7

9:55 am-6:17 pm

1 stop6h 22m

$297

KnoxvilleIdaho Falls

TYS - IDA

TYSIDA

Knoxville McGhee Tyson

Sat 4/26

3:14 pm-10:10 pm

2 stops8h 56m

Idaho Falls Fanning Field

Tue 4/29

7:43 am-11:55 pm

2 stops14h 12m

$299

NashvilleBoise

BNA - BOI

BNABOI

Nashville Intl

Sat 5/17

8:40 am-4:21 pm

1 stop8h 41m

Boise Air Term. Gowen Fld

Wed 5/21

7:10 pm-5:33 am

1 stop9h 23m

$309

NashvilleBoise

BNA - BOI

BNABOI

Nashville Intl

Sat 7/26

7:40 pm-5:56 pm

1 stop23h 16m

Boise Air Term. Gowen Fld

Sun 8/3

6:55 pm-6:43 pm

1 stop22h 48m

$315

KnoxvilleIdaho Falls

TYS - IDA

TYSIDA

Knoxville McGhee Tyson

Sat 4/26

5:45 am-3:21 pm

2 stops11h 36m

Idaho Falls Fanning Field

Tue 4/29

6:50 am-2:44 pm

1 stop5h 54m

$330

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 52 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 $419). 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 March 31, 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.

Rainfall in Idaho by month

Plan your trip to Idaho by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Idaho ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Idaho when rainfall is around 0.2 in.

Temperature in Idaho by month

Plan your trip to Idaho by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Idaho, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

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 March 31, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from Tennessee to Idaho have to say. 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
9,818 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,818 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,276 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,899 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.9
Good
2,342 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,614 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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.

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

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $155. Hawaiian Airlines flights start at $171 while deals on Southwest start at $175 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 $419). 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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$107Average$210FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$196Average$582FlexibilityNo cancel feeOn-time71%
DeltaCheapest$237Average$492FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$240Average$592FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$273Average$335FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$343Average$416FlexibilityNo cancel feeOn-time63%
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