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Cheap flights from Knoxville to Boise from $188

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to Boise departing on 6/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Knoxville to Boise

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:00 am - 12:30 pm
TYS
-
BOI
7h 30m
1 stop
Multiple Airlines Logo
1:25 pm - 7:36 pm
BOI
-
TYS
28h 11m
1 stop
$383Multiple Airlines
Thu, Jul 2 - Tue, Jul 7
Delta Logo
3:54 pm - 10:35 pm
TYS
-
BOI
8h 41m
1 stop
Delta Logo
2:50 pm - 11:01 pm
BOI
-
TYS
6h 11m
1 stop
$412Delta
Fri, Jul 3 - Tue, Jul 7
Delta Logo
5:25 pm - 12:09 am
TYS
-
BOI
8h 44m
2 stops
Delta Logo
2:50 pm - 11:01 pm
BOI
-
TYS
6h 11m
1 stop
$417Delta
Fri, Jul 3 - Tue, Jul 7
Delta Logo
3:30 pm - 10:28 pm
TYS
-
BOI
8h 58m
1 stop
Delta Logo
11:39 pm - 9:34 am
BOI
-
TYS
7h 55m
1 stop
$426Delta
Tue, Jun 2 - Thu, Jun 4
Delta Logo
5:25 pm - 11:46 pm
TYS
-
BOI
8h 21m
2 stops
Delta Logo
2:50 pm - 11:01 pm
BOI
-
TYS
6h 11m
1 stop
$431Delta
Fri, Jul 24 - Tue, Jul 28
Delta Logo
6:45 am - 1:44 pm
TYS
-
BOI
8h 59m
1 stop
Delta Logo
11:42 pm - 9:48 am
BOI
-
TYS
8h 06m
1 stop
$436Delta
Fri, Jul 24 - Tue, Jul 28
Delta Logo
5:40 am - 1:44 pm
TYS
-
BOI
10h 04m
2 stops
Delta Logo
11:42 pm - 9:48 am
BOI
-
TYS
8h 06m
1 stop
$441Delta
Fri, Jul 24 - Tue, Jul 28
Delta Logo
5:40 am - 12:53 pm
TYS
-
BOI
9h 13m
1 stop
Delta Logo
2:50 pm - 11:01 pm
BOI
-
TYS
6h 11m
1 stop
$443Delta
Fri, Jul 24 - Tue, Jul 28
Southwest Logo
5:15 pm - 12:25 am
TYS
-
BOI
9h 10m
2 stops
Southwest Logo
8:45 am - 9:10 pm
BOI
-
TYS
10h 25m
2 stops
$445Southwest
Sat, Jun 27 - Fri, Jul 3
Delta Logo
5:40 am - 1:44 pm
TYS
-
BOI
10h 04m
2 stops
Delta Logo
10:29 am - 9:38 pm
BOI
-
TYS
9h 09m
2 stops
$446Delta
Fri, Jul 24 - Tue, Jul 28

American Airlines flights from Knoxville to Boise

Our best American Airlines deals on Knoxville to Boise flight tickets
American Airlines
Jul 24
TYS5:36 amKnoxville McGhee Tyson
7h 44m
1 stop
BOI11:20 amBoise Air Term. Gowen Fld
Jul 28
BOI8:11 amBoise Air Term. Gowen Fld
9h 19m
2 stops
TYS7:30 pmKnoxville McGhee Tyson
$448
American Airlines
Jun 2
TYS6:12 amKnoxville McGhee Tyson
10h 55m
2 stops
BOI3:07 pmBoise Air Term. Gowen Fld
Jun 4
BOI3:12 pmBoise Air Term. Gowen Fld
6h 41m
1 stop
TYS11:53 pmKnoxville McGhee Tyson
$451
American Airlines
Jun 24
TYS5:37 amKnoxville McGhee Tyson
7h 41m
1 stop
BOI11:18 amBoise Air Term. Gowen Fld
Jun 28
BOI3:12 pmBoise Air Term. Gowen Fld
6h 41m
1 stop
TYS11:53 pmKnoxville McGhee Tyson
$492

United Airlines flights from Knoxville to Boise

Our best United Airlines deals on Knoxville to Boise flight tickets
United Airlines
Aug 18
TYS4:56 pmKnoxville McGhee Tyson
7h 36m
1 stop
BOI10:32 pmBoise Air Term. Gowen Fld
Aug 19
BOI2:44 pmBoise Air Term. Gowen Fld
5h 54m
1 stop
TYS10:38 pmKnoxville McGhee Tyson
$475
United Airlines
Aug 18
TYS4:50 pmKnoxville McGhee Tyson
6h 35m
1 stop
BOI9:25 pmBoise Air Term. Gowen Fld
Aug 19
BOI2:44 pmBoise Air Term. Gowen Fld
5h 54m
1 stop
TYS10:38 pmKnoxville McGhee Tyson
$495
United Airlines
May 12
TYS7:00 amKnoxville McGhee Tyson
6h 49m
1 stop
BOI11:49 amBoise Air Term. Gowen Fld
May 18
BOI2:33 pmBoise Air Term. Gowen Fld
5h 50m
1 stop
TYS10:23 pmKnoxville McGhee Tyson
$604

momondo Fare Finder

 
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, momondo users made 832,500 searches. Data last updated May 8, 2026.
Use the filters below to find and compare flights from Knoxville to Boise that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Thu 7/2

7:00 am-12:30 pm

1 stop7h 30m

Boise Air Term. Gowen Fld

Tue 7/7

1:25 pm-7:36 pm

1 stop28h 11m

$383

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Fri 7/3

3:54 pm-10:35 pm

1 stop8h 41m

Boise Air Term. Gowen Fld

Tue 7/7

2:50 pm-11:01 pm

1 stop6h 11m

$412

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Fri 7/3

5:25 pm-12:09 am

2 stops8h 44m

Boise Air Term. Gowen Fld

Tue 7/7

2:50 pm-11:01 pm

1 stop6h 11m

$417

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Tue 6/2

3:30 pm-10:28 pm

1 stop8h 58m

Boise Air Term. Gowen Fld

Thu 6/4

11:39 pm-9:34 am

1 stop7h 55m

$426
Quickest round-trip

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Fri 7/24

5:25 pm-11:46 pm

2 stops8h 21m

Boise Air Term. Gowen Fld

Tue 7/28

2:50 pm-11:01 pm

1 stop6h 11m

$431

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Fri 7/24

6:45 am-1:44 pm

1 stop8h 59m

Boise Air Term. Gowen Fld

Tue 7/28

11:42 pm-9:48 am

1 stop8h 06m

$436

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Fri 7/24

5:40 am-1:44 pm

2 stops10h 04m

Boise Air Term. Gowen Fld

Tue 7/28

11:42 pm-9:48 am

1 stop8h 06m

$441

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Fri 7/24

5:40 am-12:53 pm

1 stop9h 13m

Boise Air Term. Gowen Fld

Tue 7/28

2:50 pm-11:01 pm

1 stop6h 11m

$443

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Sat 6/27

5:15 pm-12:25 am

2 stops9h 10m

Boise Air Term. Gowen Fld

Fri 7/3

8:45 am-9:10 pm

2 stops10h 25m

$445

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Fri 7/24

5:40 am-1:44 pm

2 stops10h 04m

Boise Air Term. Gowen Fld

Tue 7/28

10:29 am-9:38 pm

2 stops9h 09m

$446

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 typical price of a round-trip flight between Knoxville and Boise?

What is the cheapest month to fly to Boise?

The month of July is, on average, the cheapest month to fly to Boise from Knoxville, with most prices found around $377. If you aren’t able to travel during the month of July, then book flights to Boise from Knoxville during August instead. Flights to Boise in August, while not as cheap as those in July, still average around $378.

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

Fastest flight time

6h 29m

Direct flights

None
The fastest flight from Knoxville to Boise takes 6h 29m
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 29m, 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
American AirlinesPriceFrom $288Free CancellationRating
7.1
11,666 reviews
Search American Airlines flights
DeltaPriceFrom $288Free CancellationRating
7.9
8,456 reviews
Search Delta flights
United AirlinesPriceFrom $350Free CancellationRating
7.4
9,694 reviews
Search United Airlines flights

Traveling to a place near Boise?

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

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Knoxville to Boise. momondo saves you time and could save you money on your trip.

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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