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Cheap flights from Knoxville to Boise from $170

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 1/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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.
Alaska Airlines Logo
6:00 am - 1:08 pm
TYS
-
BOI
9h 08m1 stop
Alaska Airlines Logo
1:58 pm - 10:47 pm
BOI
-
TYS
6h 49m1 stop
$479Alaska Airlines
mar., feb. 3 - sáb., feb. 7
Alaska Airlines Logo
12:21 pm - 11:59 pm
TYS
-
BOI
13h 38m2 stops
Alaska Airlines Logo
1:58 pm - 10:47 pm
BOI
-
TYS
6h 49m1 stop
$484Alaska Airlines
mar., feb. 3 - sáb., feb. 7
Alaska Airlines Logo
12:21 pm - 11:59 pm
TYS
-
BOI
13h 38m2 stops
Alaska Airlines Logo
6:23 am - 10:47 pm
BOI
-
TYS
14h 24m2 stops
$489Alaska Airlines
mar., feb. 3 - sáb., feb. 7
Delta Logo
6:35 am - 2:03 pm
TYS
-
BOI
9h 28m1 stop
Delta Logo
11:36 pm - 9:16 am
BOI
-
TYS
7h 40m1 stop
$538Delta
jue., mar. 26 - dom., mar. 29
Delta Logo
5:30 am - 4:00 pm
TYS
-
BOI
12h 30m2 stops
Delta Logo
11:36 pm - 9:16 am
BOI
-
TYS
7h 40m1 stop
$562Delta
jue., mar. 26 - dom., mar. 29
Southwest Logo
3:45 pm - 1:20 am
TYS
-
BOI
11h 35m2 stops
Southwest Logo
11:05 am - 9:00 pm
BOI
-
TYS
7h 55m2 stops
$575Southwest
jue., mar. 26 - dom., mar. 29
American Airlines Logo
8:23 pm - 12:31 pm
TYS
-
BOI
18h 08m1 stop
American Airlines Logo
3:47 pm - 11:49 pm
BOI
-
TYS
6h 02m1 stop
$586American Airlines
vie., may. 15 - jue., may. 21
American Airlines Logo
7:00 am - 4:53 pm
TYS
-
BOI
11h 53m2 stops
American Airlines Logo
7:20 am - 5:42 pm
BOI
-
TYS
8h 22m1 stop
$600American Airlines
vie., ene. 2 - vie., ene. 9
American Airlines Logo
7:00 am - 4:53 pm
TYS
-
BOI
11h 53m2 stops
American Airlines Logo
7:20 am - 8:56 pm
BOI
-
TYS
11h 36m2 stops
$605American Airlines
vie., ene. 2 - vie., ene. 9
Southwest Logo
2:45 pm - 11:30 pm
TYS
-
BOI
10h 45m2 stops
Southwest Logo
6:00 am - 8:20 pm
BOI
-
TYS
12h 20m2 stops
$635Southwest
vie., may. 15 - jue., may. 21

Alaska Airlines flights from Knoxville to Boise

Our best Alaska Airlines deals on Knoxville to Boise flight tickets
Alaska Airlines
Feb 3
TYS6:00 amKnoxville McGhee Tyson
9h 08m
1 stop
BOI1:08 pmBoise Air Term. Gowen Fld
Feb 7
BOI1:58 pmBoise Air Term. Gowen Fld
6h 49m
1 stop
TYS10:47 pmKnoxville McGhee Tyson
$479
Find similar
Alaska Airlines
Feb 3
TYS12:21 pmKnoxville McGhee Tyson
9h 04m
1 stop
BOI7:25 pmBoise Air Term. Gowen Fld
Feb 7
BOI6:23 amBoise Air Term. Gowen Fld
14h 24m
2 stops
TYS10:47 pmKnoxville McGhee Tyson
$484
Find similar
Alaska Airlines
Feb 3
TYS12:21 pmKnoxville McGhee Tyson
12h 40m
2 stops
BOI11:01 pmBoise Air Term. Gowen Fld
Feb 7
BOI6:23 amBoise Air Term. Gowen Fld
14h 24m
2 stops
TYS10:47 pmKnoxville McGhee Tyson
$489
Find similar

Delta flights from Knoxville to Boise

Our best Delta deals on Knoxville to Boise flight tickets
Delta
Mar 26
TYS6:35 amKnoxville McGhee Tyson
9h 28m
1 stop
BOI2:03 pmBoise Air Term. Gowen Fld
Mar 29
BOI11:36 pmBoise Air Term. Gowen Fld
7h 40m
1 stop
TYS9:16 amKnoxville McGhee Tyson
$538
Find similar
Delta
Mar 26
TYS5:30 amKnoxville McGhee Tyson
12h 30m
2 stops
BOI4:00 pmBoise Air Term. Gowen Fld
Mar 29
BOI11:36 pmBoise Air Term. Gowen Fld
7h 40m
1 stop
TYS9:16 amKnoxville McGhee Tyson
$562
Find similar
Delta
Dec 23
TYS2:10 pmKnoxville McGhee Tyson
11h 43m
2 stops
BOI11:53 pmBoise Air Term. Gowen Fld
Dec 29
BOI5:30 amBoise Air Term. Gowen Fld
13h 02m
2 stops
TYS8:32 pmKnoxville McGhee Tyson
$782
Find similar

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 diciembre 16, 2025.
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

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

mar. 2/3

6:00 am-1:08 pm

1 stop9h 08m

Boise Air Term. Gowen Fld

sáb. 2/7

1:58 pm-10:47 pm

1 stop6h 49m

$479

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

mar. 2/3

12:21 pm-11:59 pm

2 stops13h 38m

Boise Air Term. Gowen Fld

sáb. 2/7

1:58 pm-10:47 pm

1 stop6h 49m

$484

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

mar. 2/3

12:21 pm-11:59 pm

2 stops13h 38m

Boise Air Term. Gowen Fld

sáb. 2/7

6:23 am-10:47 pm

2 stops14h 24m

$489

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

jue. 3/26

6:35 am-2:03 pm

1 stop9h 28m

Boise Air Term. Gowen Fld

dom. 3/29

11:36 pm-9:16 am

1 stop7h 40m

$538

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

jue. 3/26

5:30 am-4:00 pm

2 stops12h 30m

Boise Air Term. Gowen Fld

dom. 3/29

11:36 pm-9:16 am

1 stop7h 40m

$562

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

jue. 3/26

3:45 pm-1:20 am

2 stops11h 35m

Boise Air Term. Gowen Fld

dom. 3/29

11:05 am-9:00 pm

2 stops7h 55m

$575

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

vie. 5/15

8:23 pm-12:31 pm

1 stop18h 08m

Boise Air Term. Gowen Fld

jue. 5/21

3:47 pm-11:49 pm

1 stop6h 02m

$586

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

vie. 1/2

7:00 am-4:53 pm

2 stops11h 53m

Boise Air Term. Gowen Fld

vie. 1/9

7:20 am-5:42 pm

1 stop8h 22m

$600

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

vie. 1/2

7:00 am-4:53 pm

2 stops11h 53m

Boise Air Term. Gowen Fld

vie. 1/9

7:20 am-8:56 pm

2 stops11h 36m

$605

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

vie. 5/15

2:45 pm-11:30 pm

2 stops10h 45m

Boise Air Term. Gowen Fld

jue. 5/21

6:00 am-8:20 pm

2 stops12h 20m

$635

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 $249. If you aren’t able to travel during the month of April, then book flights to Boise from Knoxville during July instead. Flights to Boise in July, while not as cheap as those in April, still average around $343.

What is the cheapest day to depart on your flight to Boise?

Our data shows that Friday is the least expensive day to fly to Boise. Tickets to fly out on this day can be as low as $377. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $756. These prices are subject to change though, so be sure to set up a Price Alert for flights to Boise.

What is the cheapest time of day to depart on your flight to Boise?

Our data shows that the cheapest Knoxville to Boise flights are usually those with departure times in the morning. Our users have found flights to Boise in the morning for as low as $498. In the afternoon is when there is more demand to fly to Boise, so prices are often more expensive at around $546 per ticket.

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

7h 27m

Direct flights

None
The fastest flight from Knoxville to Boise takes 7h 27m
There are no direct flights from Knoxville to Boise. There are no popular flight routes from Knoxville to Boise.
Search flight deals

  • 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 7h 27m, 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 $156Free CancellationRating
7.2
11,048 reviews
Search American Airlines flights
DeltaPriceFrom $269Free CancellationRating
7.9
8,010 reviews
Search Delta flights
United AirlinesPriceFrom $313Free CancellationRating
7.4
9,095 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
McCall
Meridian
Caldwell
Ontario
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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