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Cheap flights from Knoxville to Boise from $198

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Knoxville to Boise

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:30 am - 11:24 amTYS  Knoxville McGhee Tyson-BOI Boise Air Term. Gowen Fld
7h 54m1 stop Dallas/Fort Worth
American Airlines Logo
1:39 pm - 11:26 pmBOI  Boise Air Term. Gowen Fld-TYS Knoxville McGhee Tyson
7h 47m1 stop Chicago O'Hare Intl
$415American Airlines
Mon, Dec 7 - Mon, Dec 14
United Airlines Logo
5:35 pm - 10:59 pmTYS  Knoxville McGhee Tyson-BOI Boise Air Term. Gowen Fld
7h 24m1 stop Chicago O'Hare Intl
United Airlines Logo
2:48 pm - 10:50 pmBOI  Boise Air Term. Gowen Fld-TYS Knoxville McGhee Tyson
6h 02m1 stop Denver Intl
$415United Airlines
Sat, Dec 5 - Mon, Dec 7
Delta Logo
5:10 pm - 12:10 amTYS  Knoxville McGhee Tyson-BOI Boise Air Term. Gowen Fld
9h 00m2 stops Detroit Metropolitan Wayne County Minneapolis St Paul
Delta Logo
1:47 pm - 11:57 pmBOI  Boise Air Term. Gowen Fld-TYS Knoxville McGhee Tyson
8h 10m1 stop Atlanta Hartsfield-Jackson
$420Delta
Mon, Dec 7 - Mon, Dec 14
United Airlines Logo
10:57 am - 9:27 pmTYS  Knoxville McGhee Tyson-BOI Boise Air Term. Gowen Fld
12h 30m2 stops Chicago O'Hare Intl Denver Intl
United Airlines Logo
2:48 pm - 10:50 pmBOI  Boise Air Term. Gowen Fld-TYS Knoxville McGhee Tyson
6h 02m1 stop Denver Intl
$420United Airlines
Sat, Dec 5 - Mon, Dec 7
Delta Logo
5:10 pm - 12:10 amTYS  Knoxville McGhee Tyson-BOI Boise Air Term. Gowen Fld
9h 00m2 stops Detroit Metropolitan Wayne County Minneapolis St Paul
Delta Logo
6:45 pm - 10:01 amBOI  Boise Air Term. Gowen Fld-TYS Knoxville McGhee Tyson
13h 16m2 stops Salt Lake City Atlanta Hartsfield-Jackson
$425Delta
Mon, Dec 7 - Mon, Dec 14
United Airlines Logo
4:43 pm - 9:27 pmTYS  Knoxville McGhee Tyson-BOI Boise Air Term. Gowen Fld
6h 44m1 stop Denver Intl
United Airlines Logo
6:15 am - 2:40 pmBOI  Boise Air Term. Gowen Fld-TYS Knoxville McGhee Tyson
6h 25m1 stop Denver Intl
$430United Airlines
Fri, Dec 11 - Wed, Dec 16
Southwest Logo
7:10 am - 8:25 pmTYS  Knoxville McGhee Tyson-BOI Boise Air Term. Gowen Fld
15h 15m2 stops Nashville Intl Las Vegas Harry Reid Intl
Southwest Logo
5:45 am - 7:50 pmBOI  Boise Air Term. Gowen Fld-TYS Knoxville McGhee Tyson
12h 05m2 stops Phoenix Sky Harbor Intl Nashville Intl
$431Southwest
Sat, Dec 5 - Mon, Dec 7
American Airlines Logo
5:30 am - 1:28 pmTYS  Knoxville McGhee Tyson-BOI Boise Air Term. Gowen Fld
9h 58m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl
American Airlines Logo
2:42 pm - 12:35 amBOI  Boise Air Term. Gowen Fld-TYS Knoxville McGhee Tyson
7h 53m1 stop Dallas/Fort Worth
$435American Airlines
Fri, Dec 11 - Wed, Dec 16
Southwest Logo
7:05 am - 3:15 pmTYS  Knoxville McGhee Tyson-BOI Boise Air Term. Gowen Fld
10h 10m2 stops Nashville Intl Phoenix Sky Harbor Intl
Southwest Logo
6:20 am - 7:50 pmBOI  Boise Air Term. Gowen Fld-TYS Knoxville McGhee Tyson
11h 30m2 stops Las Vegas Harry Reid Intl Nashville Intl
$440Southwest
Fri, Dec 11 - Wed, Dec 16
American Airlines Logo
2:52 pm - 11:57 pmTYS  Knoxville McGhee Tyson-BOI Boise Air Term. Gowen Fld
11h 05m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl
American Airlines Logo
12:34 pm - 11:57 pmBOI  Boise Air Term. Gowen Fld-TYS Knoxville McGhee Tyson
9h 23m2 stops Phoenix Sky Harbor Intl Charlotte Douglas
$507American Airlines
Thu, Feb 11 - Sun, Feb 14

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United Airlines flights from Knoxville to Boise

Our best United Airlines deals on Knoxville to Boise flight tickets
United Airlines
Dec 5
TYS5:35 pmKnoxville McGhee Tyson
7h 24m
1 stop
BOI10:59 pmBoise Air Term. Gowen Fld
Dec 7
BOI2:48 pmBoise Air Term. Gowen Fld
6h 02m
1 stop
TYS10:50 pmKnoxville McGhee Tyson
$415
United Airlines
Dec 5
TYS10:57 amKnoxville McGhee Tyson
12h 30m
2 stops
BOI9:27 pmBoise Air Term. Gowen Fld
Dec 7
BOI2:48 pmBoise Air Term. Gowen Fld
6h 02m
1 stop
TYS10:50 pmKnoxville McGhee Tyson
$420
United Airlines
Dec 11
TYS4:43 pmKnoxville McGhee Tyson
6h 44m
1 stop
BOI9:27 pmBoise Air Term. Gowen Fld
Dec 16
BOI6:15 amBoise Air Term. Gowen Fld
6h 25m
1 stop
TYS2:40 pmKnoxville McGhee Tyson
$430

Southwest flights from Knoxville to Boise

Our best Southwest deals on Knoxville to Boise flight tickets
Southwest
Dec 5
TYS7:10 amKnoxville McGhee Tyson
15h 15m
2 stops
BOI8:25 pmBoise Air Term. Gowen Fld
Dec 7
BOI5:45 amBoise Air Term. Gowen Fld
12h 05m
2 stops
TYS7:50 pmKnoxville McGhee Tyson
$431
Southwest
Dec 11
TYS7:05 amKnoxville McGhee Tyson
10h 10m
2 stops
BOI3:15 pmBoise Air Term. Gowen Fld
Dec 16
BOI6:20 amBoise Air Term. Gowen Fld
11h 30m
2 stops
TYS7:50 pmKnoxville McGhee Tyson
$440
Southwest
Jan 8
TYS5:50 pmKnoxville McGhee Tyson
7h 20m
1 stop
BOI11:10 pmBoise Air Term. Gowen Fld
Jan 10
BOI8:20 amBoise Air Term. Gowen Fld
5h 35m
1 stop
TYS3:55 pmKnoxville McGhee Tyson
$486

momondo Fare Finder

 
Use the filters below to find and compare flights from Knoxville to Boise that are best for you.

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Cheapest round-trip

KnoxvilleBoise

TYS Knoxville McGhee Tyson - BOI Boise Air Term. Gowen Fld

TYSBOI

Knoxville McGhee Tyson

Mon 12/7

5:30 am-11:24 am

1 stop7h 54m

Boise Air Term. Gowen Fld

Mon 12/14

1:39 pm-11:26 pm

1 stop7h 47m

$415

KnoxvilleBoise

TYS Knoxville McGhee Tyson - BOI Boise Air Term. Gowen Fld

TYSBOI

Knoxville McGhee Tyson

Sat 12/5

5:35 pm-10:59 pm

1 stop7h 24m

Boise Air Term. Gowen Fld

Mon 12/7

2:48 pm-10:50 pm

1 stop6h 02m

$415

KnoxvilleBoise

TYS Knoxville McGhee Tyson - BOI Boise Air Term. Gowen Fld

TYSBOI

Knoxville McGhee Tyson

Mon 12/7

5:10 pm-12:10 am

2 stops9h 00m

Boise Air Term. Gowen Fld

Mon 12/14

1:47 pm-11:57 pm

1 stop8h 10m

$420

KnoxvilleBoise

TYS Knoxville McGhee Tyson - BOI Boise Air Term. Gowen Fld

TYSBOI

Knoxville McGhee Tyson

Sat 12/5

10:57 am-9:27 pm

2 stops12h 30m

Boise Air Term. Gowen Fld

Mon 12/7

2:48 pm-10:50 pm

1 stop6h 02m

$420

KnoxvilleBoise

TYS Knoxville McGhee Tyson - BOI Boise Air Term. Gowen Fld

TYSBOI

Knoxville McGhee Tyson

Mon 12/7

5:10 pm-12:10 am

2 stops9h 00m

Boise Air Term. Gowen Fld

Mon 12/14

6:45 pm-10:01 am

2 stops13h 16m

$425
Quickest round-trip

KnoxvilleBoise

TYS Knoxville McGhee Tyson - BOI Boise Air Term. Gowen Fld

TYSBOI

Knoxville McGhee Tyson

Fri 12/11

4:43 pm-9:27 pm

1 stop6h 44m

Boise Air Term. Gowen Fld

Wed 12/16

6:15 am-2:40 pm

1 stop6h 25m

$430

KnoxvilleBoise

TYS Knoxville McGhee Tyson - BOI Boise Air Term. Gowen Fld

TYSBOI

Knoxville McGhee Tyson

Sat 12/5

7:10 am-8:25 pm

2 stops15h 15m

Boise Air Term. Gowen Fld

Mon 12/7

5:45 am-7:50 pm

2 stops12h 05m

$431

KnoxvilleBoise

TYS Knoxville McGhee Tyson - BOI Boise Air Term. Gowen Fld

TYSBOI

Knoxville McGhee Tyson

Fri 12/11

5:30 am-1:28 pm

2 stops9h 58m

Boise Air Term. Gowen Fld

Wed 12/16

2:42 pm-12:35 am

1 stop7h 53m

$435

KnoxvilleBoise

TYS Knoxville McGhee Tyson - BOI Boise Air Term. Gowen Fld

TYSBOI

Knoxville McGhee Tyson

Fri 12/11

7:05 am-3:15 pm

2 stops10h 10m

Boise Air Term. Gowen Fld

Wed 12/16

6:20 am-7:50 pm

2 stops11h 30m

$440

KnoxvilleBoise

TYS Knoxville McGhee Tyson - BOI Boise Air Term. Gowen Fld

TYSBOI

Knoxville McGhee Tyson

Thu 2/11

2:52 pm-11:57 pm

2 stops11h 05m

Boise Air Term. Gowen Fld

Sun 2/14

12:34 pm-11:57 pm

2 stops9h 23m

$507

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Boise from

How to get the cheapest flight ticket from Knoxville to Boise

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Boise?

The month of April is, on average, the cheapest month to fly to Boise from Knoxville, with most prices found around $397. If you aren’t able to travel during the month of April, then book flights to Boise from Knoxville during November instead. Flights to Boise in November, while not as cheap as those in April, still average around $409.

How have Knoxville to Boise flight prices changed over time?

As of November 2026, prices for Knoxville to Boise flights are approximately 30% cheaper when compared to flights at the same time last year.

When to book flights from Knoxville to Boise

Are you open to changing your travel dates? Check out the ideal times to fly from Knoxville to Boise according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Knoxville to Boise (TYS to BOI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Knoxville to Boise

Best Price Found

$198

Fastest flight time

6h 44m

Direct flights

None
The best one-way flight to Boise from Knoxville in the past 72 hours is $198. The best round-trip flight deal from Knoxville to Boise found on momondo in the last 72 hours is $415.
The fastest flight from Knoxville to Boise takes 6h 44m
There are no direct flights from Knoxville to Boise. There are no popular flight routes from Knoxville to Boise.
Search flight deals

Frequently asked questions about flying from Knoxville to Boise

  • How far is Knoxville McGhee Tyson to Boise Air Term. Gowen Fld by plane?

    The distance between Knoxville McGhee Tyson and Boise Air Term. Gowen Fld is about 1779.7 mi. Flights usually cover this in 6h 44m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Boise Air Term. Gowen Fld Airport?

    Prices for flights from Knoxville McGhee Tyson Airport to Boise Air Term. Gowen Fld Airport were last updated today.

  • How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Boise Air Term. Gowen Fld Airport?

  • How old do you have to be to fly from Knoxville McGhee Tyson Airport to Boise Air Term. Gowen Fld Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Knoxville McGhee Tyson Airport to Boise Air Term. Gowen Fld Airport.

  • What documentation or ID do you need to fly to Boise Air Term. Gowen Fld Airport?

    The necessary travel and health documents for your Boise Air Term. Gowen Fld Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Knoxville to Boise?

Best airlines flying from Knoxville to Boise

Compare and see reviews for airlines that fly from Knoxville to Boise with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $350Free CancellationRating
7.3
10,486 reviews
Search United Airlines flights
DeltaPriceFrom $398Free CancellationRating
7.8
8,719 reviews
Search Delta flights
American AirlinesPriceFrom $413Free CancellationRating
7.0
12,231 reviews
Search American Airlines flights

Traveling to a place near Boise?

Book flights to Boise if you plan to visit one of these locations
Nampa
Meridian
Ontario
Caldwell
McCall
Eagle

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Why should I use momondo to find a flight deal from Knoxville to Boise?

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Can I find flights from Knoxville to Boise with flexible booking policies on momondo?

Flights from Knoxville to Boise with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Knoxville to Boise?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Boise from Knoxville.

I’m not ready to book a flight from Knoxville to Boise right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Boise, momondo offers a useful price alert feature which will track prices for flights to Boise from Knoxville and alert you when they change.

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