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$289+ Cheap flights from Knoxville to Boise (TYS - BOI)

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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — BOI
Feb 26 — Mar 51
Wed 2/26
Wed 3/5
1 adult, Economy
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Cheap flight deals from Knoxville to Boise

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Boise (BOI). 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 February 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$339
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$597
Provider with most accurate pricing for Knoxville McGhee Tyson-Boise Air Term. Gowen Fld flight deals.
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Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Boise Air Term. Gowen Fld flights.
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From Knoxville McGhee Tyson to Boise Air Term. Gowen Fld
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Highest demand for flights based on searches. 14% potential increase in price ($95 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Knoxville to Boise

Cheapest flights from Knoxville to Boise
Explore the most affordable flight options available from Knoxville to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 21, 2025.

This Delta deal was found by Cheapflights users on 2/19. 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 8/216:05 pmTYS - BOI
1 stop7h 24mDelta
Tue 8/261:43 pmBOI - TYS
1 stop8h 04mDelta
Deal found 2/19$289
This American Airlines deal was found by Cheapflights users on 2/19. 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 3/64:20 pmTYS - BOI
1 stop7h 29mAmerican Airlines
Mon 3/101:36 pmBOI - TYS
1 stop8h 22mAmerican Airlines
Deal found 2/19$339
This Mytrip deal was found by Cheapflights users on 2/20. 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.
Fri 3/76:00 amTYS - BOI
3 stops32h 32mMultiple Airlines
Tue 3/111:31 pmBOI - TYS
1 stop28h 31mMultiple Airlines
Deal found 2/20$345
This Alaska Airlines deal was found by Cheapflights users on 2/19. 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 10/165:55 amTYS - BOI
1 stop8h 39mAlaska Airlines
Thu 10/238:30 pmBOI - TYS
2 stops11h 47mAlaska Airlines
Deal found 2/19$524
This United Airlines deal was found by Cheapflights users on 2/18. 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 3/154:00 pmTYS - BOI
1 stop23h 28mUnited Airlines
Wed 3/1912:10 pmBOI - TYS
1 stop8h 35mUnited Airlines
Deal found 2/18$667

Find flights from Knoxville to Boise within your budget

Customize your flight search to find flights from Knoxville to Boise 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 February 21, 2025.

Fly from

Knoxville

Fly to

Boise

Route

Depart

Return

Price

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Thu 3/6

4:20 pm-9:49 pm

1 stop7h 29m

Boise Air Term. Gowen Fld

Mon 3/10

1:36 pm-11:58 pm

1 stop8h 22m

$339

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Fri 3/7

6:00 am-12:32 pm

3 stops32h 32m

Boise Air Term. Gowen Fld

Tue 3/11

1:31 pm-8:02 pm

1 stop28h 31m

$345

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Sat 3/15

4:00 pm-1:28 pm

1 stop23h 28m

Boise Air Term. Gowen Fld

Wed 3/19

12:10 pm-10:45 pm

1 stop8h 35m

$667

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Sun 2/23

3:54 pm-9:50 pm

1 stop7h 56m

$540

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Sun 2/23

7:00 am-6:46 pm

3 stops37h 46m

$671

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Compare providers for flights from Knoxville to Boise

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 Knoxville to Boise in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 Knoxville-Boise flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Knoxville-Boise flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Knoxville-Boise flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Knoxville-Boise flights, Cheapflights users trust FlightHub the most. FlightHub 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 Knoxville-Boise 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 Knoxville to Boise

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

Travel insights for flights from Knoxville to Boise

Get recent, data-driven insights about flights from Knoxville to Boise including ideal travel times, pricing trends, and more.

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

Currently, October is the cheapest month in which you can book a flight from Knoxville to Boise (average of $314). Flying from Knoxville to Boise in June is currently the most expensive (average of $436). 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.

Rainfall in Boise by month

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

In terms of precipitation, rainfall in Boise 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 Boise when rainfall is around 0.2 in.

Temperature in Boise by month

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

If weather is an important factor for your trip to Boise, 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 Boise

Get insights into the airlines that provide service to Boise. 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 Boise. Reviews last updated February 21, 2025.
American Airlines
7.2
Good
10,000 reviews

Entertainment

7.0

Boarding

7.5

Overall

7.2

Comfort

7.3

Food

6.5

Crew

8.0

Reviews

1 / 20

10.0
Excellent

Anonymous,Jan 2025

PIT - DFW

Due to gate changes,we nearly missed our flight. The gate agent reassigned our seats and would NOT give us our assigned seats,but she did honor that same request to the man who arrived after us. Her rudeness and difficulty was not appropriate.

American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Entertainment

7.0

Boarding

7.5

Overall

7.2

Comfort

7.3

Food

6.5

Crew

8.0

Reviews

1 / 20

10.0
Excellent

Anonymous,Jan 2025

PIT - DFW

Due to gate changes,we nearly missed our flight. The gate agent reassigned our seats and would NOT give us our assigned seats,but she did honor that same request to the man who arrived after us. Her rudeness and difficulty was not appropriate.

Related info for your journey

Find useful and relevant information for your journey from Knoxville to Boise. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What is the cheapest airline to fly from Knoxville to Boise round-trip?

    Cheapflights users have booked flights from Knoxville to Boise round-trip from $339. American Airlines is 37% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Knoxville to Boise (average of $314). Flying from Knoxville to Boise in June is currently the most expensive (average of $436). 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
Nampa
McCall
Meridian
Caldwell
Ontario

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Top 3 airlines flying from Knoxville to Boise

Discover the top 3 airlines that operate flights from Knoxville to Boise. 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 February 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$288Average$450FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$303Average$557FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$328Average$558FlexibilityNo cancel feeOn-time71%
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