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$346+ Cheap flights from Boise to Knoxville (BOI - TYS)

This is the cheapest round-trip 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.
BOI — TYS
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to Knoxville McGhee Tyson are usually found in April or September, booked 55 days in advance, depart on a Tuesday or Wednesday and return on a Friday

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 October 27, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/25. 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 12/412:44 pmBOI - TYS
2 stops31h 05mMultiple Airlines
Fri 12/128:00 amTYS - BOI
1 stop9h 44mMultiple Airlines
Deal found 10/25$346
This American Airlines deal was found by Cheapflights users on 10/25. 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 12/41:25 pmBOI - TYS
1 stop8h 25mAmerican Airlines
Fri 12/125:24 amTYS - BOI
1 stop9h 03mAmerican Airlines
Deal found 10/25$437
This Delta deal was found by Cheapflights users on 10/25. 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 12/411:44 amBOI - TYS
2 stops9h 34mDelta
Fri 12/123:57 pmTYS - BOI
2 stops10h 12mDelta
Deal found 10/25$447
This Kiwi.com deal was found by Cheapflights users on 10/25. 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.
Mon 12/299:46 pmBOI - TYS
2 stops16h 05mMultiple Airlines
Mon 1/58:00 amTYS - BOI
1 stop9h 04mMultiple Airlines
Deal found 10/25$466
This Delta deal was found by Cheapflights users on 10/25. 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 12/112:04 pmBOI - TYS
1 stop7h 24mDelta
Sat 12/131:27 pmTYS - BOI
2 stops8h 07mDelta
Deal found 10/25$474
This American Airlines deal was found by Cheapflights users on 10/26. 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 11/101:25 pmBOI - TYS
1 stop8h 43mAmerican Airlines
Fri 11/144:27 pmTYS - BOI
1 stop8h 03mAmerican Airlines
Deal found 10/26$537
This American Airlines deal was found by Cheapflights users on 10/25. 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 12/111:25 pmBOI - TYS
1 stop8h 25mAmerican Airlines
Sat 12/135:24 amTYS - BOI
1 stop9h 03mAmerican Airlines
Deal found 10/25$542
This Delta deal was found by Cheapflights users on 10/25. 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 10/251:39 pmBOI - TYS
1 stop7h 28mDelta
Tue 11/45:44 amTYS - BOI
1 stop8h 45mDelta
Deal found 10/25$544
This United Airlines deal was found by Cheapflights users on 10/26. 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.
Mon 11/1010:39 amBOI - TYS
2 stops7h 54mUnited Airlines
Fri 11/142:25 pmTYS - BOI
2 stops10h 20mUnited Airlines
Deal found 10/26$547

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 October 27, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$346
(Kiwi.com)

Popular in

March

Cheapest in

April

Average price

$564
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Knoxville McGhee Tyson flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Knoxville McGhee Tyson flights.
Search Deals
From Boise Air Term. Gowen Fld to Knoxville McGhee Tyson
Search Deals
High demand for flights, 13% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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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 October 27, 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

Thu 12/4

12:44 pm-9:49 pm

2 stops31h 05m

Knoxville McGhee Tyson

Fri 12/12

8:00 am-3:44 pm

1 stop9h 44m

$346

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Sat 2/28

3:00 pm-11:00 pm

1 stop6h 00m

Knoxville McGhee Tyson

Wed 3/4

6:45 am-2:09 pm

1 stop9h 24m

$389

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Thu 12/4

1:25 pm-11:50 pm

1 stop8h 25m

Knoxville McGhee Tyson

Fri 12/12

5:24 am-12:27 pm

1 stop9h 03m

$437

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 3/3

3:00 pm-11:00 pm

1 stop6h 00m

Knoxville McGhee Tyson

Sat 3/7

6:45 am-2:09 pm

1 stop9h 24m

$437

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Thu 11/6

6:15 am-3:51 pm

1 stop7h 36m

$389

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boise-Knoxville flight deals on Cheapflights vs. eDreams >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 October 24, 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, September is the cheapest month in which you can book a flight from Boise to Knoxville (average of $236). Flying from Boise to Knoxville in December 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 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 October 27, 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 38% versus a flight in the morning.

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 October 27, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and United Airlines from Boise to Knoxville 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
11,197 reviews

Overall

8.0

Crew

8.5

Food

7.1

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
11,197 reviews
Alaska Airlines
8.0
Very good
11,197 reviews

Overall

8.0

Crew

8.5

Food

7.1

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Delta
7.9
Good
7,996 reviews
Alaska Airlines
8.0
Very good
11,197 reviews

Overall

8.0

Crew

8.5

Food

7.1

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
United Airlines
7.4
Good
8,997 reviews
Alaska Airlines
8.0
Very good
11,197 reviews

Overall

8.0

Crew

8.5

Food

7.1

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
American Airlines
7.2
Good
11,033 reviews
Alaska Airlines
8.0
Very good
11,197 reviews

Overall

8.0

Crew

8.5

Food

7.1

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

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.

  • How long is the flight from Boise to Knoxville?

    There are many flights that can get you from Boise to Knoxville in 6h. Fly via Delta to get the fastest option. Boise and Knoxville are separated by a distance of 1782 mi.

  • What are the cheapest airlines flying from Boise to Knoxville round-trip?

    Cheapflights users have booked flights from Boise to Knoxville round-trip from $254. Other airlines that can offer you cheap pricing are American Airlines, from $258, and United Airlines, from $318. Delta is 49% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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, September is the cheapest month in which you can book a flight from Boise to Knoxville (average of $236). Flying from Boise to Knoxville in December 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

Traveling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Morristown
Cherokee
Crossville
Corbin
Bryson City
Alcoa
Oak Ridge
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 October 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$254Average$458FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$258Average$376FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$318Average$508FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$408Average$672FlexibilityNo cancel feeOn-time75%

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