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Idaho

$116+ 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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
BNA — BOI
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
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 April 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$187
(Alaska Airlines)

One-way from

$116
(Mytrip)

Popular in

December

Cheapest in

November

Average price

$400
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. 3% potential increase in price ($12 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 17, 2025.

This Delta deal was found by Cheapflights users on 4/16. 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 8/126:05 pmTYS - GEG
1 stop7h 58mDelta
Sun 8/1710:59 pmGEG - TYS
1 stop7h 14mDelta
Deal found 4/16$270
This Delta deal was found by Cheapflights users on 4/17. 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 8/126:05 pmTYS - BOI
1 stop7h 24mDelta
Mon 8/1811:30 pmBOI - TYS
1 stop7h 43mDelta
Deal found 4/17$270
This Alaska Airlines deal was found by Cheapflights users on 4/17. 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.
Wed 8/279:00 amBNA - GEG
1 stop9h 55mAlaska Airlines
Wed 9/33:10 pmGEG - BNA
1 stop6h 49mAlaska Airlines
Deal found 4/17$271
This American Airlines deal was found by Cheapflights users on 4/17. 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 8/217:57 amTYS - BOI
1 stop6h 30mAmerican Airlines
Tue 8/261:17 pmBOI - TYS
1 stop6h 17mAmerican Airlines
Deal found 4/17$295
This Hawaiian Airlines deal was found by Cheapflights users on 4/17. 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.
Sat 8/27:00 amBNA - GEG
1 stop7h 28mHawaiian Airlines
Sat 8/98:48 pmGEG - BNA
1 stop6h 52mHawaiian Airlines
Deal found 4/17$296
This Delta deal was found by Cheapflights users on 4/16. 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.
Thu 5/293:00 pmBNA - GEG
1 stop8h 40mDelta
Wed 6/42:15 pmGEG - BNA
1 stop8h 12mDelta
Deal found 4/16$297
This Sun Country Air deal was found by Cheapflights users on 4/17. 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.
Thu 6/2612:45 pmBNA - BOI
1 stop6h 23mSun Country Air
Sun 6/296:20 pmBOI - BNA
1 stop20h 59mSun Country Air
Deal found 4/17$305
This Delta deal was found by Cheapflights users on 4/17. 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 7/96:00 amBNA - BOI
1 stop9h 00mDelta
Wed 7/1611:30 pmBOI - BNA
1 stop8h 03mDelta
Deal found 4/17$309
This FlightHub deal was found by Cheapflights users on 4/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/229:08 pmMEM - BOI
1 stop15h 13mSpirit Airlines
Mon 5/2612:16 pmBOI - MEM
1 stop6h 57mSpirit Airlines
Deal found 4/16$315
This Mytrip deal was found by Cheapflights users on 4/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/19:58 pmMEM - BOI
1 stop15h 59mMultiple Airlines
Mon 5/54:26 pmBOI - MEM
2 stops27h 37mMultiple Airlines
Deal found 4/16$322
This Delta deal was found by Cheapflights users on 4/16. 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 6/46:45 pmMEM - GEG
1 stop6h 30mDelta
Wed 6/1811:10 pmGEG - MEM
1 stop7h 39mDelta
Deal found 4/16$325
This American Airlines deal was found by Cheapflights users on 4/17. 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.
Fri 5/23:09 pmTYS - GEG
1 stop9h 29mAmerican Airlines
Tue 5/61:22 pmGEG - TYS
1 stop7h 36mAmerican Airlines
Deal found 4/17$339

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 April 17, 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

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

Tue 8/12

6:05 pm-11:03 pm

1 stop7h 58m

Spokane

Sun 8/17

10:59 pm-9:13 am

1 stop7h 14m

$270

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Tue 8/12

6:05 pm-11:29 pm

1 stop7h 24m

Boise Air Term. Gowen Fld

Mon 8/18

11:30 pm-9:13 am

1 stop7h 43m

$270

NashvilleSpokane

BNA - GEG

BNAGEG

Nashville Intl

Wed 8/27

9:00 am-4:55 pm

1 stop9h 55m

Spokane

Wed 9/3

3:10 pm-11:59 pm

1 stop6h 49m

$271

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Thu 8/21

7:57 am-12:27 pm

1 stop6h 30m

Boise Air Term. Gowen Fld

Tue 8/26

1:17 pm-9:34 pm

1 stop6h 17m

$295

NashvilleSpokane

BNA - GEG

BNAGEG

Nashville Intl

Sat 8/2

7:00 am-12:28 pm

1 stop7h 28m

Spokane

Sat 8/9

8:48 pm-5:40 am

1 stop6h 52m

$296

NashvilleSpokane

BNA - GEG

BNAGEG

Nashville Intl

Thu 5/29

3:00 pm-9:40 pm

1 stop8h 40m

Spokane

Tue 6/3

7:00 am-5:31 pm

1 stop8h 31m

$297

NashvilleBoise

BNA - BOI

BNABOI

Nashville Intl

Thu 6/26

12:45 pm-6:08 pm

1 stop6h 23m

Boise Air Term. Gowen Fld

Sun 6/29

6:20 pm-4:19 pm

1 stop20h 59m

$305

NashvilleBoise

BNA - BOI

BNABOI

Nashville Intl

Wed 7/9

6:00 am-2:00 pm

1 stop9h 00m

Boise Air Term. Gowen Fld

Wed 7/16

11:30 pm-8:33 am

1 stop8h 03m

$309

MemphisBoise

MEM - BOI

MEMBOI

Memphis

Thu 5/22

9:08 pm-11:21 am

1 stop15h 13m

Boise Air Term. Gowen Fld

Mon 5/26

12:16 pm-8:13 pm

1 stop6h 57m

$315

MemphisBoise

MEM - BOI

MEMBOI

Memphis

Thu 5/1

9:58 pm-12:57 pm

1 stop15h 59m

Boise Air Term. Gowen Fld

Mon 5/5

4:26 pm-9:03 pm

2 stops27h 37m

$322

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

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 $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 April 17, 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 April 17, 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
9,887 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,887 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,280 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,916 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Hawaiian Airlines
7.9
Good
2,380 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,667 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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 Spirit Airlines, which is currently one of the cheapest options available, starting at $116. Alaska Airlines flights start at $148 while deals on Delta start at $149 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$107Average$212FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$172Average$593FlexibilityNo cancel feeOn-time71%
DeltaCheapest$237Average$490FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$237Average$335FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$240Average$580FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$343Average$416FlexibilityNo cancel feeOn-time63%

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