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Idaho

$110+ 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 5/22. Fares are subject to change and may not be available on all flights or dates of travel.
BNA — BOI
May 6 — May 131
Tue 5/6
Tue 5/13
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 May 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$259
(Delta)

One-way from

$110
(Mytrip)

Popular in

December

Cheapest in

November

Average price

$378
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 May 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 May 1, 2025.

This Delta deal was found by Cheapflights users on 4/30. 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.
Wed 6/255:57 pmTYS - BOI
1 stop6h 32mDelta
Wed 7/21:46 pmBOI - TYS
1 stop8h 13mDelta
Deal found 4/30$259
This Delta deal was found by Cheapflights users on 4/30. 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 7/225:57 pmTYS - GEG
1 stop7h 03mDelta
Mon 8/412:21 pmGEG - TYS
1 stop8h 38mDelta
Deal found 4/30$289
This Expedia deal was found by Cheapflights users on 4/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/127:18 pmBNA - BOI
1 stop14h 30mMultiple Airlines
Mon 6/168:46 pmBOI - BNA
1 stop7h 54mMultiple Airlines
Deal found 4/30$292
This Hawaiian Airlines deal was found by Cheapflights users on 4/30. 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.
Sat 8/25:44 pmBNA - GEG
1 stop7h 12mHawaiian Airlines
Sat 8/98:48 pmGEG - BNA
1 stop6h 52mHawaiian Airlines
Deal found 4/30$296
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Thu 5/152:25 pmBNA - GEG
1 stop11h 13mUnited Airlines
Mon 5/195:29 amGEG - BNA
1 stop6h 02mUnited Airlines
Deal found 4/30$297
This Delta deal was found by Cheapflights users on 5/1. 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 5/83:58 pmBNA - GEG
2 stops9h 40mDelta
Sun 5/1111:09 pmGEG - BNA
1 stop7h 12mDelta
Deal found 5/1$302
This Delta deal was found by Cheapflights users on 4/30. 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.
Wed 5/287:20 amMEM - GEG
1 stop6h 41mDelta
Wed 6/42:36 pmGEG - MEM
1 stop7h 11mDelta
Deal found 4/30$307
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/95:15 amBNA - BOI
1 stop8h 27mDelta
Wed 7/163:17 pmBOI - BNA
1 stop6h 15mDelta
Deal found 4/29$307
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/281:36 pmBNA - BOI
1 stop9h 24mAmerican Airlines
Sat 5/311:50 pmBOI - BNA
1 stop6h 22mAmerican Airlines
Deal found 4/30$308
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/95:45 pmBNA - GEG
1 stop7h 35mAmerican Airlines
Tue 6/101:51 pmGEG - BNA
1 stop6h 29mAmerican Airlines
Deal found 4/30$320
This Southwest deal was found by Cheapflights users on 4/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/185:05 amBNA - BOI
1 stop5h 30mSouthwest
Sat 6/214:45 pmBOI - BNA
1 stop7h 10mSouthwest
Deal found 4/30$329
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/25:00 amMEM - GEG
1 stop9h 25mAmerican Airlines
Mon 6/93:10 pmGEG - MEM
1 stop6h 48mAmerican Airlines
Deal found 4/30$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 May 1, 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

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Wed 6/25

5:57 pm-10:29 pm

1 stop6h 32m

Boise Air Term. Gowen Fld

Wed 7/2

1:46 pm-11:59 pm

1 stop8h 13m

$259

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

Tue 7/22

5:57 pm-10:00 pm

1 stop7h 03m

Spokane

Mon 8/4

12:21 pm-11:59 pm

1 stop8h 38m

$289

NashvilleBoise

BNA - BOI

BNABOI

Nashville Intl

Thu 6/12

7:18 pm-8:48 am

1 stop14h 30m

Boise Air Term. Gowen Fld

Mon 6/16

8:46 pm-5:40 am

1 stop7h 54m

$292

NashvilleSpokane

BNA - GEG

BNAGEG

Nashville Intl

Sat 8/2

5:44 pm-10:56 pm

1 stop7h 12m

Spokane

Sat 8/9

8:48 pm-5:40 am

1 stop6h 52m

$296

NashvilleSpokane

BNA - GEG

BNAGEG

Nashville Intl

Thu 5/15

2:25 pm-11:38 pm

1 stop11h 13m

Spokane

Mon 5/19

5:29 am-1:31 pm

1 stop6h 02m

$297

NashvilleSpokane

BNA - GEG

BNAGEG

Nashville Intl

Sat 8/2

5:15 am-1:17 pm

2 stops10h 02m

Spokane

Sat 8/9

1:00 pm-11:55 pm

1 stop8h 55m

$302

MemphisSpokane

MEM - GEG

MEMGEG

Memphis

Wed 5/28

7:20 am-12:01 pm

1 stop6h 41m

Spokane

Wed 6/4

2:36 pm-11:47 pm

1 stop7h 11m

$307

NashvilleBoise

BNA - BOI

BNABOI

Nashville Intl

Wed 7/9

5:15 am-12:42 pm

1 stop8h 27m

Boise Air Term. Gowen Fld

Wed 7/16

3:17 pm-10:32 pm

1 stop6h 15m

$307

NashvilleBoise

BNA - BOI

BNABOI

Nashville Intl

Wed 5/28

1:36 pm-10:00 pm

1 stop9h 24m

Boise Air Term. Gowen Fld

Sat 5/31

1:50 pm-9:12 pm

1 stop6h 22m

$308

NashvilleSpokane

BNA - GEG

BNAGEG

Nashville Intl

Mon 6/9

5:45 pm-11:20 pm

1 stop7h 35m

Spokane

Tue 6/10

1:51 pm-10:20 pm

1 stop6h 29m

$320

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 58 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 $406). 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 May 1, 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 May 1, 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
9,972 reviews

Crew

8.5

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,972 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,293 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,934 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,409 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 $110. United Airlines flights start at $149 while deals on Hawaiian 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 $406). 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$107Average$194FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$172Average$591FlexibilityNo cancel feeOn-time71%
DeltaCheapest$237Average$488FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$237Average$345FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$240Average$603FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$343Average$416FlexibilityNo cancel feeOn-time63%

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