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$167+ Cheap flights from Boise to Knoxville (BOI - TYS)

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.
BOI — TYS
Apr 27 — May 41
Sun 4/27
Sun 5/4
1 adult, Economy
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Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to Knoxville McGhee Tyson are usually found in February or August, booked 54 days in advance, depart on a Tuesday or Wednesday and return on a Friday

Cheap flight deals from Boise to Knoxville

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to Knoxville (TYS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$270
(American Airlines)

One-way from

$167
(Trip.com)

Popular in

March

Cheapest in

February

Average price

$451
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Knoxville McGhee Tyson flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Knoxville McGhee Tyson flights.
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From Boise Air Term. Gowen Fld to Knoxville McGhee Tyson
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One-way flight from Boise Air Term. Gowen Fld to Knoxville McGhee Tyson
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Highest demand for flights based on searches. 1% potential increase in price ($9 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($25 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 Boise to Knoxville

Cheapest flights from Boise to Knoxville
Explore the most affordable flight options available from Boise to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 22, 2025.

This American Airlines deal was found by Cheapflights users on 4/22. 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 8/53:35 pmBOI - TYS
1 stop6h 15mAmerican Airlines
Mon 8/112:29 pmTYS - BOI
1 stop8h 47mAmerican Airlines
Deal found 4/22$270
This Delta deal was found by Cheapflights users on 4/21. 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 5/2911:59 pmBOI - TYS
1 stop7h 41mDelta
Wed 6/44:22 pmTYS - BOI
2 stops10h 00mDelta
Deal found 4/21$275
This United Airlines deal was found by Cheapflights users on 4/22. 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 5/65:00 amBOI - TYS
1 stop7h 59mUnited Airlines
Tue 5/137:00 amTYS - BOI
1 stop7h 14mUnited Airlines
Deal found 4/22$385
This Mytrip deal was found by Cheapflights users on 4/21. 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.
Mon 6/912:16 pmBOI - TYS
3 stops25h 52mMultiple Airlines
Sun 6/156:00 amTYS - BOI
2 stops28h 41mMultiple Airlines
Deal found 4/21$496
This Alaska Airlines deal was found by Cheapflights users on 4/21. 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.
Thu 5/294:01 pmBOI - TYS
2 stops17h 40mAlaska Airlines
Wed 6/45:05 amTYS - BOI
2 stops11h 00mAlaska Airlines
Deal found 4/21$509

Cheapflights Fare Finder

Customize your flight search to find flights from Boise to Knoxville 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 22, 2025.
Use the filters below to find and compare flights from Boise to Knoxville that are best for you.

Fly from

Boise

Fly to

Knoxville

Route

Depart

Return

Price

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 8/5

3:35 pm-11:50 pm

1 stop6h 15m

Knoxville McGhee Tyson

Mon 8/11

2:29 pm-9:16 pm

1 stop8h 47m

$270

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Thu 5/29

11:59 pm-9:40 am

1 stop7h 41m

Knoxville McGhee Tyson

Wed 6/4

4:22 pm-12:22 am

2 stops10h 00m

$275

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 5/6

5:00 am-2:59 pm

1 stop7h 59m

Knoxville McGhee Tyson

Tue 5/13

7:00 am-12:14 pm

1 stop7h 14m

$385

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Mon 6/9

12:16 pm-4:08 pm

3 stops25h 52m

Knoxville McGhee Tyson

Sun 6/15

6:00 am-8:41 am

2 stops28h 41m

$496

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Thu 5/29

4:01 pm-11:41 am

2 stops17h 40m

Knoxville McGhee Tyson

Wed 6/4

5:05 am-2:05 pm

2 stops11h 00m

$509

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Thu 5/22

12:36 pm-10:35 pm

1 stop7h 59m

$167

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 5/20

5:00 am-2:59 pm

1 stop7h 59m

$171

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 5/20

1:38 pm-11:58 pm

1 stop8h 20m

$190

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 5/20

7:40 pm-9:40 am

2 stops12h 00m

$205

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Wed 5/21

1:38 pm-11:58 pm

1 stop8h 20m

$235

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Compare providers for flights from Boise to Knoxville

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boise to Knoxville in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boise-Knoxville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boise-Knoxville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boise-Knoxville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boise-Knoxville flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boise-Knoxville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boise to Knoxville

Have a flexible travel schedule? Discover the best time to fly to Knoxville from Boise 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 Boise to Knoxville

How far ahead should I book a flight from Boise to Knoxville?

Use this chart to determine the optimal time to book a round-trip flight from Boise to Knoxville. Price data was last updated on April 18, 2025.

The price you pay for your flight from Boise to Knoxville may vary depending on when you book. For the best chance of a lower fare, look to book 54 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Boise to Knoxville?

Currently, January is the cheapest month in which you can book a flight from Boise to Knoxville (average of $296). Flying from Boise to Knoxville in March is currently the most expensive (average of $376). 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 BOI to TYS?

Find hourly flight availability from Boise to Knoxville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 22, 2025.

When flying from Boise to Knoxville, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 39% versus a flight in the morning.

Rainfall in Knoxville by month

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

In terms of precipitation, rainfall in Knoxville ranges from 2.7 - 4.8 inches per month. March is typically the wettest month, when rainfall can reach 4.8 in. October is typically the driest time to visit Knoxville when rainfall is around 2.7 in.

Temperature in Knoxville by month

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

If weather is an important factor for your trip to Knoxville, 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 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Knoxville

Get insights into the airlines that provide service to Knoxville. 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 Knoxville. Reviews last updated April 22, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta and United Airlines from Boise to Knoxville to help guide your decision. 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
9,911 reviews

Food

7.1

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Comfort

7.9

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
9,911 reviews
Alaska Airlines
8.0
Very good
9,911 reviews

Food

7.1

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Comfort

7.9

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
7,920 reviews
Alaska Airlines
8.0
Very good
9,911 reviews

Food

7.1

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Comfort

7.9

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
8,683 reviews
Alaska Airlines
8.0
Very good
9,911 reviews

Food

7.1

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,911 reviews

Food

7.1

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Comfort

7.9

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 Boise to Knoxville. 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 flying from Boise to Knoxville round-trip?

    Cheapflights users have booked flights from Boise to Knoxville round-trip from $270. Other airlines that can offer you cheap pricing are Delta, from $275, and United Airlines, from $385. American Airlines is 46% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Boise to Knoxville one-way?

    One-way options have recently been found by users for as low as $171 on United Airlines. Other airlines that offer cheap prices include American Airlines from $190 and Delta from $205 one-way.

  • Can I find deals for flights from Boise to Knoxville that include hotel bookings?

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

  • How can I find direct flights from Boise to Knoxville?

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

  • Can I find deals for business class flights from Boise to Knoxville?

    Yes. Cheapflights offers flight deals from Boise to Knoxville 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 Boise to Knoxville?

    Currently, January is the cheapest month in which you can book a flight from Boise to Knoxville (average of $296). Flying from Boise to Knoxville in March is currently the most expensive (average of $376). 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 Boise?

Book flights to Boise if you plan to visit one of these locations
Morristown
Cherokee
Corbin
Maryville
Oak Ridge
Alcoa
Murphy

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Top 4 airlines flying from Boise to Knoxville

Discover the top 4 airlines that operate flights from Boise to Knoxville. 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 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$258Average$459FlexibilityNo cancel feeOn-time71%
DeltaCheapest$267Average$389FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$298Average$559FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$379Average$779FlexibilityNo cancel feeOn-time75%

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