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Cheap flights from Boise to Knoxville from $354

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 12/21. 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 Boise to Knoxville

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
2:37 pm - 10:31 pm
BOI
-
TYS
5h 54m1 stop
United Airlines Logo
1:59 pm - 7:13 pm
TYS
-
BOI
7h 14m1 stop
$389United Airlines
Wed, Jan 14 - Sat, Jan 24
Delta Logo
1:41 pm - 11:45 pm
BOI
-
TYS
8h 04m1 stop
Delta Logo
5:40 am - 2:07 pm
TYS
-
BOI
10h 27m2 stops
$394Delta
Wed, Jan 14 - Sat, Jan 24
Delta Logo
5:30 am - 8:47 pm
BOI
-
TYS
13h 17m2 stops
Delta Logo
5:40 am - 2:07 pm
TYS
-
BOI
10h 27m2 stops
$399Delta
Wed, Jan 14 - Sat, Jan 24
Delta Logo
1:40 pm - 11:45 pm
BOI
-
TYS
8h 05m1 stop
Delta Logo
6:30 am - 1:34 pm
TYS
-
BOI
9h 04m1 stop
$413Delta
Wed, Jan 21 - Fri, Jan 30
United Airlines Logo
6:10 am - 7:50 pm
BOI
-
TYS
11h 40m2 stops
United Airlines Logo
6:45 am - 12:39 pm
TYS
-
BOI
7h 54m1 stop
$418United Airlines
Wed, Jan 21 - Fri, Jan 30
United Airlines Logo
10:28 am - 8:52 pm
BOI
-
TYS
8h 24m2 stops
United Airlines Logo
11:07 am - 7:51 pm
TYS
-
BOI
10h 44m2 stops
$423United Airlines
Wed, Jan 21 - Fri, Jan 30
Southwest Logo
7:50 pm - 11:40 am
BOI
-
TYS
13h 50m2 stops
Southwest Logo
2:55 pm - 11:30 pm
TYS
-
BOI
10h 35m2 stops
$429Southwest
Thu, May 14 - Tue, May 19
American Airlines Logo
7:20 am - 8:56 pm
BOI
-
TYS
11h 36m2 stops
American Airlines Logo
7:54 am - 5:07 pm
TYS
-
BOI
11h 13m2 stops
$457American Airlines
Wed, Jan 14 - Sat, Jan 24
American Airlines Logo
1:25 pm - 11:06 pm
BOI
-
TYS
7h 41m1 stop
American Airlines Logo
2:15 pm - 9:07 pm
TYS
-
BOI
8h 52m1 stop
$506American Airlines
Thu, May 14 - Tue, May 19
Alaska Airlines Logo
7:16 am - 5:42 pm
BOI
-
TYS
8h 26m1 stop
Alaska Airlines Logo
6:00 am - 1:08 pm
TYS
-
BOI
9h 08m1 stop
$527Alaska Airlines
Sun, Jan 25 - Thu, Jan 29

United Airlines flights from Boise to Knoxville

Our best United Airlines deals on Boise to Knoxville flight tickets
United Airlines
Jan 21
BOI6:10 amBoise Air Term. Gowen Fld
11h 40m
2 stops
TYS7:50 pmKnoxville McGhee Tyson
Jan 30
TYS6:45 amKnoxville McGhee Tyson
7h 54m
1 stop
BOI12:39 pmBoise Air Term. Gowen Fld
$418
Find similar
United Airlines
Jan 21
BOI10:28 amBoise Air Term. Gowen Fld
8h 24m
2 stops
TYS8:52 pmKnoxville McGhee Tyson
Jan 30
TYS11:07 amKnoxville McGhee Tyson
10h 44m
2 stops
BOI7:51 pmBoise Air Term. Gowen Fld
$423
Find similar
United Airlines
Jan 25
BOI12:19 pmBoise Air Term. Gowen Fld
6h 33m
1 stop
TYS8:52 pmKnoxville McGhee Tyson
Jan 29
TYS11:07 amKnoxville McGhee Tyson
10h 44m
2 stops
BOI7:51 pmBoise Air Term. Gowen Fld
$532
Find similar

Delta flights from Boise to Knoxville

Our best Delta deals on Boise to Knoxville flight tickets
Delta
Jan 14
BOI1:41 pmBoise Air Term. Gowen Fld
8h 04m
1 stop
TYS11:45 pmKnoxville McGhee Tyson
Jan 24
TYS5:40 amKnoxville McGhee Tyson
8h 50m
1 stop
BOI12:30 pmBoise Air Term. Gowen Fld
$389
Find similar
Delta
Jan 14
BOI1:41 pmBoise Air Term. Gowen Fld
8h 04m
1 stop
TYS11:45 pmKnoxville McGhee Tyson
Jan 24
TYS5:40 amKnoxville McGhee Tyson
10h 27m
2 stops
BOI2:07 pmBoise Air Term. Gowen Fld
$394
Find similar
Delta
Jan 14
BOI5:30 amBoise Air Term. Gowen Fld
13h 17m
2 stops
TYS8:47 pmKnoxville McGhee Tyson
Jan 24
TYS5:40 amKnoxville McGhee Tyson
8h 29m
2 stops
BOI12:09 pmBoise Air Term. Gowen Fld
$399
Find similar

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 December 15, 2025.
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

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Wed 1/14

2:37 pm-10:31 pm

1 stop5h 54m

Knoxville McGhee Tyson

Sat 1/24

1:59 pm-7:13 pm

1 stop7h 14m

$389

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Wed 1/14

1:41 pm-11:45 pm

1 stop8h 04m

Knoxville McGhee Tyson

Sat 1/24

5:40 am-2:07 pm

2 stops10h 27m

$394

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Wed 1/14

5:30 am-8:47 pm

2 stops13h 17m

Knoxville McGhee Tyson

Sat 1/24

5:40 am-2:07 pm

2 stops10h 27m

$399

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Wed 1/21

1:40 pm-11:45 pm

1 stop8h 05m

Knoxville McGhee Tyson

Fri 1/30

6:30 am-1:34 pm

1 stop9h 04m

$413

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Wed 1/21

6:10 am-7:50 pm

2 stops11h 40m

Knoxville McGhee Tyson

Fri 1/30

6:45 am-12:39 pm

1 stop7h 54m

$418

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Wed 1/21

10:28 am-8:52 pm

2 stops8h 24m

Knoxville McGhee Tyson

Fri 1/30

11:07 am-7:51 pm

2 stops10h 44m

$423

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Thu 5/14

7:50 pm-11:40 am

2 stops13h 50m

Knoxville McGhee Tyson

Tue 5/19

2:55 pm-11:30 pm

2 stops10h 35m

$429

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Wed 1/14

7:20 am-8:56 pm

2 stops11h 36m

Knoxville McGhee Tyson

Sat 1/24

7:54 am-5:07 pm

2 stops11h 13m

$457

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Thu 5/14

1:25 pm-11:06 pm

1 stop7h 41m

Knoxville McGhee Tyson

Tue 5/19

2:15 pm-9:07 pm

1 stop8h 52m

$506

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Sun 1/25

7:16 am-5:42 pm

1 stop8h 26m

Knoxville McGhee Tyson

Thu 1/29

6:00 am-1:08 pm

1 stop9h 08m

$527

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 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 January is, on average, the cheapest month to fly to Knoxville from Boise, with most prices found around $319. If you aren’t able to travel during the month of January, then book flights to Knoxville from Boise during September instead. Flights to Knoxville in September, while not as cheap as those in January, still average around $338.

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

The cheapest day to depart from Boise to Knoxville is on a Tuesday. Travelers who choose to depart for Knoxville on a Tuesday will often find tickets for as low as $432. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Boise to Knoxville for around $701.

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

In the evening is the cheapest time of day to fly from Boise to Knoxville when you can find flight prices for as low as $368. Flying to Knoxville in the evening is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Knoxville is in the morning when prices are around $600.

Can stopping save me money on Boise to Knoxville flights?

You could potentially save up to 64% 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

6h 06m

Direct flights

None
The fastest flight from Boise to Knoxville takes 6h 06m
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 6h 06m.

  • 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 $254Free CancellationRating
7.9
8,008 reviews
Search Delta flights
American AirlinesPriceFrom $258Free CancellationRating
7.2
11,051 reviews
Search American Airlines flights
United AirlinesPriceFrom $318Free CancellationRating
7.4
9,092 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $379Free CancellationRating
8.0
11,452 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
Murphy
Alcoa
Oak Ridge
Newport
Lenoir City
Kodak
Dandridge
Jefferson City
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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