HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Knoxville to Boise (TYS - BOI) from $240

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 8/17. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
TYS — BOI
Jun 2 — Jun 91
From?
To?
Sun 6/2
Sun 6/9
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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 May 28, 2024.

Popular in

December

Cheapest in

May

Average price

$350

Round-trip from

$311
High demand for flights, 24% potential price rise
Search Deals
Best time to find cheap flights, 33% potential price drop
Search Deals
Average for round-trip flights in May 2024
Search Deals
From Knoxville McGhee Tyson to Boise Air Term. Gowen Fld
Search Deals

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

Users have found that leaving on a Thursday can be a cost-effective option. It’s possible to save up to 104% on your flight compared to booking on days when demand is much higher.

What is the cheapest month to fly from Knoxville to Boise?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, May can be a great choice for travel to Boise. Flights to Boise from Knoxville in May are about $520 on average during May, but can be found for as low as $297.

When is the cheapest time to fly from Knoxville to Boise (TYS - BOI)?

When flying from Knoxville to Boise, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 5% versus a flight in the afternoon.

Cheap American Airlines flights from Knoxville to Boise

Explore cheap flight options specifically provided by American Airlines for the route between Knoxville and Boise. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated May 28, 2024.
Find some of the cheapest American Airlines flights traveling from Knoxville to Boise. Make sure to check back often as deals are often changing.
Wed 7/246:25 pmTYS - BOI
1 stop8h 36mAmerican Airlines
Wed 7/313:44 pmBOI - TYS
1 stop6h 15mAmerican Airlines
Deal found 5/27$310
Sat 8/172:29 pmTYS - BOI
1 stop9h 02mAmerican Airlines
Sun 8/251:34 pmBOI - TYS
1 stop8h 45mAmerican Airlines
Deal found 5/27$335
Tue 7/306:25 pmTYS - BOI
1 stop8h 36mAmerican Airlines
Tue 8/61:34 pmBOI - TYS
1 stop8h 45mAmerican Airlines
Deal found 5/27$391
Tue 7/306:25 pmTYS - BOI
1 stop8h 36mAmerican Airlines
Tue 8/66:42 amBOI - TYS
2 stops12h 54mAmerican Airlines
Deal found 5/27$395
Wed 7/245:10 amTYS - BOI
2 stops11h 39mAmerican Airlines
Wed 7/313:44 pmBOI - TYS
1 stop6h 15mAmerican Airlines
Deal found 5/27$438
Thu 7/46:00 amTYS - BOI
1 stop7h 00mAmerican Airlines
Sat 7/612:51 amBOI - TYS
1 stop9h 05mAmerican Airlines
Deal found 5/27$459
Thu 7/45:12 amTYS - BOI
2 stops13h 22mAmerican Airlines
Sat 7/612:51 amBOI - TYS
1 stop9h 05mAmerican Airlines
Deal found 5/28$462
Thu 7/45:05 pmTYS - BOI
2 stops19h 51mAmerican Airlines
Sat 7/612:51 amBOI - TYS
1 stop9h 05mAmerican Airlines
Deal found 5/27$467
Sat 8/36:25 pmTYS - BOI
1 stop8h 36mAmerican Airlines
Sat 8/106:40 amBOI - TYS
2 stops12h 27mAmerican Airlines
Deal found 5/27$539

Cheap Delta flights from Knoxville to Boise

Explore cheap flight options specifically provided by Delta for the route between Knoxville and Boise. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated May 28, 2024.
Some of the best deals we've found on Delta flights traveling from Knoxville to Boise. Ensure the flight price, dates, time, and airline match your criteria before you book.
Sat 8/175:25 amTYS - BOI
2 stops10h 47mDelta
Sun 8/2511:39 pmBOI - TYS
2 stops10h 03mDelta
Deal found 5/28$250
Sat 8/175:25 amTYS - BOI
2 stops10h 47mDelta
Sun 8/2511:39 pmBOI - TYS
2 stops10h 03mDelta
Deal found 5/27$273
Sat 8/105:25 amTYS - BOI
2 stops10h 47mDelta
Sun 8/2511:39 pmBOI - TYS
2 stops10h 03mDelta
Deal found 5/27$353
Tue 7/305:25 amTYS - BOI
2 stops10h 56mDelta
Tue 8/63:12 pmBOI - TYS
1 stop5h 48mDelta
Deal found 5/28$379
Sat 8/35:25 amTYS - BOI
2 stops10h 56mDelta
Sat 8/1010:06 amBOI - TYS
2 stops11h 45mDelta
Deal found 5/28$417
Sat 8/35:25 amTYS - BOI
2 stops10h 56mDelta
Sat 8/1011:55 amBOI - TYS
2 stops9h 56mDelta
Deal found 5/27$434
Sat 8/35:25 amTYS - BOI
2 stops10h 56mDelta
Sat 8/102:04 pmBOI - TYS
1 stop7h 47mDelta
Deal found 5/28$493
Wed 7/245:00 pmTYS - BOI
2 stops9h 15mDelta
Wed 7/3111:55 amBOI - TYS
2 stops9h 56mDelta
Deal found 5/28$548

Cheap Knoxville to Boise flights in May & June 2024

Find cheap flight options from Knoxville to Boise specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,696,634 searches. Prices were last updated on May 28, 2024.
Listed are some of the best fares we've found on flights departing from Knoxville to Boise in 2024. Check back in a little while for more flight options.
Mon 6/2411:21 amTYS - BOI
3 stops31h 18mMultiple Airlines
Mon 7/17:19 pmBOI - TYS
2 stops20h 03mMultiple Airlines
Deal found 5/27$386
Mon 6/246:00 amTYS - BOI
2 stops16h 23mMultiple Airlines
Mon 7/19:13 pmBOI - TYS
2 stops13h 18mMultiple Airlines
Deal found 5/27$449
Mon 6/2411:21 amTYS - BOI
3 stops31h 18mMultiple Airlines
Mon 7/17:19 pmBOI - TYS
3 stops23h 24mMultiple Airlines
Deal found 5/27$479
Mon 6/245:40 pmTYS - BOI
2 stops18h 05mUnited Airlines
Mon 7/12:27 pmBOI - TYS
1 stop6h 03mUnited Airlines
Deal found 5/27$587
Mon 6/243:10 pmTYS - BOI
1 stop22h 27mUnited Airlines
Mon 7/12:27 pmBOI - TYS
1 stop6h 03mUnited Airlines
Deal found 5/27$598

Knoxville to Boise 2024 flight deals

Discover exclusive flight deals for travel between Knoxville and Boise in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated May 28, 2024.
Listed are some of the best fares we've found on flights departing from Knoxville to Boise in 2024. Check back in a little while for more flight options.
Sat 8/177:00 amTYS - BOI
1 stop6h 35mUnited Airlines
Sun 8/257:00 amBOI - TYS
1 stop5h 48mUnited Airlines
Deal found 5/27$240
Sat 8/175:25 amTYS - BOI
2 stops10h 47mDelta
Sun 8/2511:39 pmBOI - TYS
2 stops10h 03mDelta
Deal found 5/28$250
Sat 8/175:25 amTYS - BOI
2 stops10h 47mDelta
Sun 8/2511:39 pmBOI - TYS
2 stops10h 03mDelta
Deal found 5/27$273
Wed 7/246:25 pmTYS - BOI
1 stop8h 36mAmerican Airlines
Wed 7/313:44 pmBOI - TYS
1 stop6h 15mAmerican Airlines
Deal found 5/27$310
Sat 8/172:29 pmTYS - BOI
1 stop9h 02mAmerican Airlines
Sun 8/251:34 pmBOI - TYS
1 stop8h 45mAmerican Airlines
Deal found 5/27$335
Sat 8/105:25 amTYS - BOI
2 stops10h 47mDelta
Sun 8/2511:39 pmBOI - TYS
2 stops10h 03mDelta
Deal found 5/27$353
Tue 7/305:25 amTYS - BOI
2 stops10h 56mDelta
Tue 8/63:12 pmBOI - TYS
1 stop5h 48mDelta
Deal found 5/28$379
Mon 6/2411:21 amTYS - BOI
3 stops31h 18mMultiple Airlines
Mon 7/17:19 pmBOI - TYS
2 stops20h 03mMultiple Airlines
Deal found 5/27$386
Tue 7/306:25 pmTYS - BOI
1 stop8h 36mAmerican Airlines
Tue 8/61:34 pmBOI - TYS
1 stop8h 45mAmerican Airlines
Deal found 5/27$391

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 2,696,634 searches. Data last updated May 28, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$240 - $521

Route

Depart

Return

Price

Knoxville McGhee TysonBoise Air Term. Gowen Fld

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Sat 8/17

1 stop6h 35m

Boise Air Term. Gowen Fld

Sun 8/25

1 stop5h 48m

$240

Knoxville McGhee TysonBoise Air Term. Gowen Fld

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Sat 8/17

2 stops10h 47m

Boise Air Term. Gowen Fld

Sun 8/25

2 stops10h 03m

$250

Knoxville McGhee TysonBoise Air Term. Gowen Fld

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Sat 8/17

2 stops10h 47m

Boise Air Term. Gowen Fld

Sun 8/25

2 stops10h 03m

$273

Knoxville McGhee TysonBoise Air Term. Gowen Fld

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Wed 7/24

1 stop8h 36m

Boise Air Term. Gowen Fld

Wed 7/31

1 stop6h 15m

$310

Knoxville McGhee TysonBoise Air Term. Gowen Fld

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Sat 8/17

1 stop9h 02m

Boise Air Term. Gowen Fld

Sun 8/25

1 stop8h 45m

$335

Knoxville McGhee TysonBoise Air Term. Gowen Fld

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Sat 8/10

2 stops10h 47m

Boise Air Term. Gowen Fld

Sun 8/25

2 stops10h 03m

$353

Knoxville McGhee TysonBoise Air Term. Gowen Fld

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Mon 6/24

3 stops31h 18m

Boise Air Term. Gowen Fld

Mon 7/1

2 stops20h 03m

$386

Knoxville McGhee TysonBoise Air Term. Gowen Fld

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Sat 8/10

2 stops23h 33m

Boise Air Term. Gowen Fld

Sun 8/25

1 stop16h 55m

$398

Knoxville McGhee TysonBoise Air Term. Gowen Fld

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Sat 8/17

2 stops11h 30m

Boise Air Term. Gowen Fld

Sun 8/25

2 stops22h 30m

$521

Flights are sorted by cheapest first

Deals found on 5/27

When is the cheapest time to fly from Knoxville to Boise?

Use this chart to determine the cheapest time to fly round-trip from Knoxville to Boise. Price data was last updated on May 19, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Knoxville to Boise flight should consider departing on Tuesday mornings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

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.

Temperature and rainfall in Boise by month

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

BOI

Temperature

30.2 - 75.2 °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 May 28, 2024.
To help decide which airline to fly from Knoxville to Boise, see what other customers have to say about American Airlines, Delta and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,194 reviews
Check prices

Comfort

7.9

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.3

Entertainment

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Alaska Airlines
8.1
Very good
9,194 reviews
Alaska Airlines
8.1
Very good
9,194 reviews
Check prices

Comfort

7.9

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.3

Entertainment

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Delta
8.0
Very good
10,476 reviews
Alaska Airlines
8.1
Very good
9,194 reviews
Check prices

Comfort

7.9

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.3

Entertainment

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

United Airlines
7.4
Good
10,799 reviews
Alaska Airlines
8.1
Very good
9,194 reviews
Check prices

Comfort

7.9

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.3

Entertainment

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

American Airlines
7.3
Good
14,316 reviews
Alaska Airlines
8.1
Very good
9,194 reviews
Check prices

Comfort

7.9

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.3

Entertainment

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

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.

  • Can I find flights from Knoxville to Boise for under $300 on Cheapflights?

    Yes, there are multiple flights from Knoxville to Boise for under $300. The cheapest flight booked recently is on United Airlines for just $240, but on average you can expect to pay $386.

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

    Cheapflights users have booked flights from Knoxville to Boise round-trip from $240. Other airlines that can offer you cheap pricing are Delta, from $250, and American Airlines, from $310. United Airlines is 53% cheaper than the average price of flights available within the next 90 days to this destination.

  • What does TYS to BOI mean?

    This is defined as Knoxville McGhee Tyson Airport (TYS) and Boise Air Term. Gowen Fld Airport (BOI). Codes like Boise Air Term. Gowen Fld Airport are often used to just call airports uniquely.

  • Can I find deals for flights from Knoxville to Boise that include extra baggage allowance?

    The amount of baggage you can bring on your Knoxville to Boise flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Knoxville to Boise with specific airlines?

    Yes, Cheapflights allows you to browse and filter Knoxville to Boise flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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.

  • Can I find deals for flights from Knoxville to Boise that allow pets onboard?

    Many airlines flying from Knoxville to Boise offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Knoxville to Boise?

    Yes, you can often find last-minute deals on Knoxville to Boise flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Knoxville to Boise flight deals updated?

    The Knoxville to Boise flight deals you see on this page were last updated on 5/28.

  • What are the most popular airlines that fly from Knoxville to Boise?

    The most popular airlines flying from Knoxville to Boise are American Airlines, Alaska Airlines and Delta. Something to consider prior to booking your flight.

  • When is the best time to book a flight from Knoxville to Boise?

    Currently, December is the cheapest month in which you can book a flight from Knoxville to Boise (average of $311). Flying from Knoxville to Boise in June is currently the most expensive (average of $452). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Knoxville to Boise
See prices for flight routes from nearby airports that may be better suited for you.

Nashville to Jackson flights
Nashville to Spokane flights
Knoxville to Jackson flights
Nashville to Boise flights
Nashville to Idaho Falls flights
Memphis to Spokane flights
Memphis to Jackson flights
Memphis to Boise flights
Chattanooga to Jackson flights
Knoxville to Spokane flights
Memphis to Idaho Falls flights
Memphis to West Yellowstone flights
Blountville to Spokane flights
Nashville to Pocatello flights
Chattanooga to Spokane flights
Nashville to West Yellowstone flights
Knoxville to Idaho Falls flights
Chattanooga to Boise flights
Nashville to Hailey flights
Knoxville to Pocatello flights
Knoxville to Lewiston flights
Blountville to Jackson flights
Memphis to Pocatello flights
Chattanooga to West Yellowstone flights
Chattanooga to Lewiston flights

Top 4 airlines flying from Knoxville to Boise

Discover the top 4 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 2,696,634 searches. Data last updated May 28, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$297Average$458FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$335Average$616FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$344Average$467FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Alaska AirlinesCheapest$473Average$528FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Detroit to Los Angeles flights
USA to Philippines flights
Austin to Miami flights
Dallas to Orlando flights
USA to South Korea flights
Atlanta to Newark Airport flights
New York to Washington, D.C. flights
New York to Atlanta flights
Phoenix to Atlanta flights
Boston to Seattle flights
Los Angeles to New York John F Kennedy Intl Airport flights
Knoxville to Mumbai flights

Search flights from Knoxville to Boise by cabin class

Find flights from Knoxville to Boise, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Laayoune Hassan I
Flights to Virac
Flights to Figari-Sud Corse
Flights to Edremit/Korfez
Flights to Rhinelander Oneida County
Flights to Girona Costa Brava
Flights to Brainerd Crow Wing County
Flights to Parikia Paros
Flights to Cortez Montezuma County
Flights to Miyakojima Hirara
Flights to Zadar
Flights to Trapani Birgi
Flights to Provincetown
Flights to Oran Es Senia
Flights to Constanţa Mihail Kogalniceanu
Flights to Vava'u Lupepau'U
Flights to Urumqi
Flights to Hakodate
Flights to Naxos
Flights to Dalaman
Flights to Hyannis Barnstable
Flights to Devils Lake
Flights to Bastia Poretta
Flights to Karpathos

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Knoxville to Boise?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Boise from Knoxville today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Knoxville to Boise?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Boise from Knoxville.

Can Cheapflights find flights from Knoxville to Boise with no change fees?

Yes! Cheapflights helps users easily find flights from Knoxville to Boise with no change fees.

Can Cheapflights notify me if prices for flights from Knoxville to Boise become cheaper?

Yes, Cheapflights offers price alerts on Knoxville to Boise flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines