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Cheap flights from Boise to Knoxville from $151

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boise to Knoxville departing on 6/2. 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
1 adult, Economy, 0 bags

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Find the cheapest flights from Boise to Knoxville

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
1:25 pm - 7:33 pm
BOI
-
TYS
28h 08m
1 stop
Frontier Logo
8:32 pm - 12:30 pm
TYS
-
BOI
17h 58m
1 stop
$325Frontier
Sun, May 24 - Mon, Jun 1
Multiple Airlines Logo
1:25 pm - 7:33 pm
BOI
-
TYS
28h 08m
1 stop
Multiple Airlines Logo
7:00 am - 12:30 pm
TYS
-
BOI
7h 30m
1 stop
$346Multiple Airlines
Sun, May 24 - Thu, Jun 4
Frontier Logo
1:25 pm - 7:33 pm
BOI
-
TYS
28h 08m
1 stop
Frontier Logo
8:32 pm - 12:30 pm
TYS
-
BOI
17h 58m
1 stop
$350Frontier
Tue, May 26 - Mon, Jun 1
Frontier Logo
1:25 pm - 7:33 pm
BOI
-
TYS
28h 08m
1 stop
Frontier Logo
8:08 pm - 11:16 am
TYS
-
BOI
17h 08m
1 stop
$351Frontier
Tue, Jun 2 - Wed, Jun 10
Frontier Logo
1:25 pm - 7:33 pm
BOI
-
TYS
28h 08m
1 stop
Frontier Logo
8:32 pm - 12:30 pm
TYS
-
BOI
17h 58m
1 stop
$357Frontier
Sun, May 24 - Wed, Jun 3
Frontier Logo
1:25 pm - 7:33 pm
BOI
-
TYS
28h 08m
1 stop
Frontier Logo
8:08 pm - 11:16 am
TYS
-
BOI
17h 08m
1 stop
$368Frontier
Tue, Jun 2 - Wed, Jun 10
Multiple Airlines Logo
1:25 pm - 7:33 pm
BOI
-
TYS
28h 08m
1 stop
Multiple Airlines Logo
7:00 am - 12:30 pm
TYS
-
BOI
7h 30m
1 stop
$371Multiple Airlines
Tue, May 26 - Thu, Jun 4
American Airlines Logo
1:41 pm - 11:56 pm
BOI
-
TYS
8h 15m
1 stop
American Airlines Logo
4:09 pm - 10:54 pm
TYS
-
BOI
8h 45m
1 stop
$375American Airlines
Wed, Apr 8 - Wed, Apr 15
American Airlines Logo
1:41 pm - 11:56 pm
BOI
-
TYS
8h 15m
1 stop
American Airlines Logo
1:20 pm - 11:41 pm
TYS
-
BOI
12h 21m
2 stops
$380American Airlines
Wed, Apr 8 - Wed, Apr 15
Frontier Logo
1:25 pm - 7:33 pm
BOI
-
TYS
28h 08m
1 stop
Frontier Logo
8:32 pm - 12:30 pm
TYS
-
BOI
17h 58m
1 stop
$382Frontier
Tue, May 26 - Wed, Jun 3

American Airlines flights from Boise to Knoxville

Our best American Airlines deals on Boise to Knoxville flight tickets
American Airlines
Apr 8
BOI1:41 pmBoise Air Term. Gowen Fld
8h 15m
1 stop
TYS11:56 pmKnoxville McGhee Tyson
Apr 15
TYS4:09 pmKnoxville McGhee Tyson
8h 45m
1 stop
BOI10:54 pmBoise Air Term. Gowen Fld
$375
American Airlines
Apr 8
BOI1:41 pmBoise Air Term. Gowen Fld
8h 15m
1 stop
TYS11:56 pmKnoxville McGhee Tyson
Apr 15
TYS1:20 pmKnoxville McGhee Tyson
12h 21m
2 stops
BOI11:41 pmBoise Air Term. Gowen Fld
$380
American Airlines
Apr 8
BOI1:41 pmBoise Air Term. Gowen Fld
8h 15m
1 stop
TYS11:56 pmKnoxville McGhee Tyson
Apr 15
TYS5:00 amKnoxville McGhee Tyson
9h 49m
2 stops
BOI12:49 pmBoise Air Term. Gowen Fld
$400

Delta flights from Boise to Knoxville

Our best Delta deals on Boise to Knoxville flight tickets
Delta
Apr 21
BOI11:35 pmBoise Air Term. Gowen Fld
7h 43m
1 stop
TYS9:18 amKnoxville McGhee Tyson
Apr 25
TYS5:40 amKnoxville McGhee Tyson
9h 27m
1 stop
BOI1:07 pmBoise Air Term. Gowen Fld
$427
Delta
Apr 21
BOI11:35 pmBoise Air Term. Gowen Fld
7h 43m
1 stop
TYS9:18 amKnoxville McGhee Tyson
Apr 23
TYS5:40 amKnoxville McGhee Tyson
10h 46m
2 stops
BOI2:26 pmBoise Air Term. Gowen Fld
$432
Delta
Apr 21
BOI10:45 amBoise Air Term. Gowen Fld
10h 14m
2 stops
TYS10:59 pmKnoxville McGhee Tyson
Apr 22
TYS5:40 amKnoxville McGhee Tyson
10h 46m
2 stops
BOI2:26 pmBoise Air Term. Gowen Fld
$437

momondo Fare Finder

 
Customize your flight search to find flights from Boise to Knoxville 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 March 19, 2026.
Use the filters below to find and compare flights from Boise to Knoxville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Sun 5/24

1:25 pm-7:33 pm

1 stop28h 08m

Knoxville McGhee Tyson

Mon 6/1

8:32 pm-12:30 pm

1 stop17h 58m

$325

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Sun 5/24

1:25 pm-7:33 pm

1 stop28h 08m

Knoxville McGhee Tyson

Thu 6/4

7:00 am-12:30 pm

1 stop7h 30m

$346

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 5/26

1:25 pm-7:33 pm

1 stop28h 08m

Knoxville McGhee Tyson

Mon 6/1

8:32 pm-12:30 pm

1 stop17h 58m

$350

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 6/2

1:25 pm-7:33 pm

1 stop28h 08m

Knoxville McGhee Tyson

Wed 6/10

8:08 pm-11:16 am

1 stop17h 08m

$351

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Sun 5/24

1:25 pm-7:33 pm

1 stop28h 08m

Knoxville McGhee Tyson

Wed 6/3

8:32 pm-12:30 pm

1 stop17h 58m

$357

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 6/2

1:25 pm-7:33 pm

1 stop28h 08m

Knoxville McGhee Tyson

Wed 6/10

8:08 pm-11:16 am

1 stop17h 08m

$368

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 5/26

1:25 pm-7:33 pm

1 stop28h 08m

Knoxville McGhee Tyson

Thu 6/4

7:00 am-12:30 pm

1 stop7h 30m

$371
Quickest round-trip

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Wed 4/8

1:41 pm-11:56 pm

1 stop8h 15m

Knoxville McGhee Tyson

Wed 4/15

4:09 pm-10:54 pm

1 stop8h 45m

$375

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Wed 4/8

1:41 pm-11:56 pm

1 stop8h 15m

Knoxville McGhee Tyson

Wed 4/15

1:20 pm-11:41 pm

2 stops12h 21m

$380

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 5/26

1:25 pm-7:33 pm

1 stop28h 08m

Knoxville McGhee Tyson

Wed 6/3

8:32 pm-12:30 pm

1 stop17h 58m

$382

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 Knoxville from

How to get the cheapest flight ticket from Boise to Knoxville

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 Knoxville?

The month of September is, on average, the cheapest month to fly to Knoxville from Boise, with most prices found around $338. If you aren’t able to travel during the month of September, then book flights to Knoxville from Boise during July instead. Flights to Knoxville in July, while not as cheap as those in September, still average around $388.

Can stopping save me money on Boise to Knoxville flights?

You could potentially save up to 36% on your flight if you consider stops on a Boise to Knoxville flight.

When to book flights from Boise to Knoxville

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

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

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

Fastest flight time

5h 40m

Direct flights

None
The fastest flight from Boise to Knoxville takes 5h 40m
There are no direct flights from Boise to Knoxville. There are no popular flight routes from Boise to Knoxville.
Search flight deals

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

    The straight-line distance from Boise Air Term. Gowen Fld to Knoxville McGhee Tyson is 1779.7 mi. A reasonable flight in good conditions will take 5h 40m.

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

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boise Air Term. Gowen Fld Airport to Knoxville McGhee Tyson Airport.

  • What documentation or ID do you need to fly to Knoxville McGhee Tyson Airport?

    The travel and health documents required for your trip to Knoxville McGhee Tyson Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Knoxville McGhee Tyson Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from Boise to Knoxville

Compare and see reviews for airlines that fly from Boise to Knoxville with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $269Free CancellationRating
7.9
8,293 reviews
Search Delta flights
American AirlinesPriceFrom $288Free CancellationRating
7.1
11,473 reviews
Search American Airlines flights
United AirlinesPriceFrom $358Free CancellationRating
7.4
9,439 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $458Free CancellationRating
7.9
12,072 reviews
Search Alaska Airlines flights

Traveling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Pigeon Forge
Gatlinburg
Cherokee
Bryson City
Morristown
Corbin
Maryville
Crossville
Alcoa
Murphy
Oak Ridge
Lenoir City
Newport
Kodak
Jefferson City
Dandridge
Clinton
Rockford

Why use momondo?

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

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

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

Yes. momondo allows you to filter the results for Boise to Knoxville flights to just show those with flexible booking policies.

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

Once you have performed a search for Boise to Knoxville flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

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

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