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Cheap flights from Idaho to Knoxville from $180

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Knoxville departing on 2/14. 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 Idaho to Knoxville

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
3:00 pm - 10:58 pm
BOI
-
TYS
5h 58m1 stop
Delta Logo
5:01 pm - 10:27 pm
TYS
-
BOI
7h 26m1 stop
$321Delta
Tue, Mar 10 - Wed, Mar 11
American Airlines Logo
6:00 am - 5:42 pm
GEG
-
TYS
8h 42m1 stop
American Airlines Logo
12:21 pm - 6:49 pm
TYS
-
GEG
9h 28m1 stop
$321American Airlines
Tue, Feb 3 - Tue, Feb 10
Delta Logo
6:15 pm - 9:16 am
BOI
-
TYS
13h 01m2 stops
Delta Logo
5:01 pm - 10:27 pm
TYS
-
BOI
7h 26m1 stop
$326Delta
Tue, Mar 10 - Wed, Mar 11
American Airlines Logo
6:00 am - 8:56 pm
GEG
-
TYS
11h 56m2 stops
American Airlines Logo
12:21 pm - 6:49 pm
TYS
-
GEG
9h 28m1 stop
$326American Airlines
Tue, Feb 3 - Tue, Feb 10
Delta Logo
6:15 pm - 9:16 am
BOI
-
TYS
13h 01m2 stops
Delta Logo
5:24 pm - 11:59 pm
TYS
-
BOI
8h 35m2 stops
$331Delta
Tue, Mar 10 - Wed, Mar 11
American Airlines Logo
6:33 am - 9:21 pm
GEG
-
TYS
11h 48m2 stops
American Airlines Logo
8:09 am - 6:49 pm
TYS
-
GEG
13h 40m2 stops
$331American Airlines
Tue, Feb 3 - Tue, Feb 10
American Airlines Logo
6:00 am - 3:46 pm
GEG
-
TYS
6h 46m1 stop
American Airlines Logo
10:11 am - 6:49 pm
TYS
-
GEG
11h 38m2 stops
$345American Airlines
Tue, Feb 3 - Sat, Feb 7
United Airlines Logo
2:40 pm - 10:31 pm
IDA
-
TYS
5h 51m1 stop
United Airlines Logo
9:30 am - 9:14 pm
TYS
-
IDA
13h 44m2 stops
$364United Airlines
Sat, Jan 10 - Wed, Jan 14
United Airlines Logo
6:30 am - 8:52 pm
IDA
-
TYS
12h 22m2 stops
United Airlines Logo
9:30 am - 9:14 pm
TYS
-
IDA
13h 44m2 stops
$369United Airlines
Sat, Jan 10 - Wed, Jan 14
United Airlines Logo
1:05 pm - 11:44 pm
JAC
-
TYS
8h 39m1 stop
United Airlines Logo
6:45 am - 11:29 am
TYS
-
JAC
6h 44m1 stop
$379United Airlines
Sat, Feb 14 - Tue, Feb 17

Alaska Airlines flights from Idaho to Knoxville

Our best Alaska Airlines deals on Idaho to Knoxville flight tickets
Alaska Airlines
May 16
BOI9:00 amBoise Air Term. Gowen Fld
12h 47m
2 stops
TYS11:47 pmKnoxville McGhee Tyson
May 24
TYS4:29 pmKnoxville McGhee Tyson
8h 36m
1 stop
BOI11:05 pmBoise Air Term. Gowen Fld
$508
Find similar
Alaska Airlines
Jan 8
BOI1:58 pmBoise Air Term. Gowen Fld
6h 49m
1 stop
TYS10:47 pmKnoxville McGhee Tyson
Jan 10
TYS12:21 pmKnoxville McGhee Tyson
9h 04m
1 stop
BOI7:25 pmBoise Air Term. Gowen Fld
$621
Find similar
Alaska Airlines
Jan 8
BOI6:23 amBoise Air Term. Gowen Fld
14h 24m
2 stops
TYS10:47 pmKnoxville McGhee Tyson
Jan 10
TYS6:00 amKnoxville McGhee Tyson
9h 08m
1 stop
BOI1:08 pmBoise Air Term. Gowen Fld
$626
Find similar

United Airlines flights from Idaho to Knoxville

Our best United Airlines deals on Idaho to Knoxville flight tickets
United Airlines
Jan 10
IDA2:40 pmIdaho Falls Fanning Field
5h 51m
1 stop
TYS10:31 pmKnoxville McGhee Tyson
Jan 14
TYS9:30 amKnoxville McGhee Tyson
13h 44m
2 stops
IDA9:14 pmIdaho Falls Fanning Field
$364
Find similar
United Airlines
Jan 10
IDA6:30 amIdaho Falls Fanning Field
12h 22m
2 stops
TYS8:52 pmKnoxville McGhee Tyson
Jan 14
TYS9:30 amKnoxville McGhee Tyson
13h 44m
2 stops
IDA9:14 pmIdaho Falls Fanning Field
$369
Find similar
United Airlines
Feb 14
JAC1:05 pmJackson Hole
8h 39m
1 stop
TYS11:44 pmKnoxville McGhee Tyson
Feb 17
TYS6:45 amKnoxville McGhee Tyson
6h 44m
1 stop
JAC11:29 amJackson Hole
$379
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Idaho 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 28, 2025.
Use the filters below to find and compare flights from Idaho to Knoxville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 3/10

3:00 pm-10:58 pm

1 stop5h 58m

Knoxville McGhee Tyson

Wed 3/11

5:01 pm-10:27 pm

1 stop7h 26m

$321

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Tue 2/3

6:00 am-5:42 pm

1 stop8h 42m

Knoxville McGhee Tyson

Tue 2/10

12:21 pm-6:49 pm

1 stop9h 28m

$321

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 3/10

6:15 pm-9:16 am

2 stops13h 01m

Knoxville McGhee Tyson

Wed 3/11

5:01 pm-10:27 pm

1 stop7h 26m

$326

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Tue 2/3

6:00 am-8:56 pm

2 stops11h 56m

Knoxville McGhee Tyson

Tue 2/10

12:21 pm-6:49 pm

1 stop9h 28m

$326

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 3/10

6:15 pm-9:16 am

2 stops13h 01m

Knoxville McGhee Tyson

Wed 3/11

5:24 pm-11:59 pm

2 stops8h 35m

$331

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Tue 2/3

6:33 am-9:21 pm

2 stops11h 48m

Knoxville McGhee Tyson

Tue 2/10

8:09 am-6:49 pm

2 stops13h 40m

$331

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Tue 2/3

6:00 am-3:46 pm

1 stop6h 46m

Knoxville McGhee Tyson

Sat 2/7

10:11 am-6:49 pm

2 stops11h 38m

$345

Idaho FallsKnoxville

IDA - TYS

IDATYS

Idaho Falls Fanning Field

Sat 1/10

2:40 pm-10:31 pm

1 stop5h 51m

Knoxville McGhee Tyson

Wed 1/14

9:30 am-9:14 pm

2 stops13h 44m

$364

Idaho FallsKnoxville

IDA - TYS

IDATYS

Idaho Falls Fanning Field

Sat 1/10

6:30 am-8:52 pm

2 stops12h 22m

Knoxville McGhee Tyson

Wed 1/14

9:30 am-9:14 pm

2 stops13h 44m

$369

JacksonKnoxville

JAC - TYS

JACTYS

Jackson Hole

Sat 2/14

1:05 pm-11:44 pm

1 stop8h 39m

Knoxville McGhee Tyson

Tue 2/17

6:45 am-11:29 am

1 stop6h 44m

$379

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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See travel insights to Knoxville from

How to get the cheapest flight ticket from Idaho 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 Idaho, with most prices found around $319. If you aren’t able to travel during the month of January, then book flights to Knoxville from Idaho 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 Idaho 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 Idaho to Knoxville for around $701.

Can stopping save me money on Idaho to Knoxville flights?

You could potentially save up to 48% on your flight if you consider stops on a Idaho to Knoxville flight.

Cheap Idaho to Knoxville flight deals and tips

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

Fastest flight time

5h 51m

Direct flights

None
The fastest flight from Idaho to Knoxville takes 5h 51m
There are no direct flights from Idaho to Knoxville. There are no popular flight routes from Idaho to Knoxville.
Search flight deals

  • When did momondo last update prices for flights from Idaho to Knoxville McGhee Tyson Airport?

    Prices for flights from Idaho to Knoxville McGhee Tyson Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Idaho to Knoxville McGhee Tyson Airport?

  • How old do you have to be to fly from Idaho 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 Idaho to Knoxville McGhee Tyson Airport.

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

    The necessary travel and health documents for your Knoxville McGhee Tyson 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.

Best airlines flying from Idaho to Knoxville

Compare and see reviews for airlines that fly from Idaho to Knoxville with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $254Free CancellationRating
7.9
8,019 reviews
Search Delta flights
American AirlinesPriceFrom $258Free CancellationRating
7.2
11,072 reviews
Search American Airlines flights
United AirlinesPriceFrom $318Free CancellationRating
7.4
9,113 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $379Free CancellationRating
8.0
11,551 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 Idaho to Knoxville?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Idaho to Knoxville. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

Once you have performed a search for Idaho 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 Idaho to Knoxville right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Idaho to Knoxville now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Knoxville and let you know when they change.

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