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Cheap flights from Idaho to Knoxville from $181

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 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.
1 adult
1 adult, Economy, 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.
United Airlines Logo
5:05 am - 3:06 pm
GEG
-
TYS
7h 01m
1 stop
United Airlines Logo
9:12 am - 12:39 pm
TYS
-
GEG
6h 27m
1 stop
$387United Airlines
Tue, Apr 28 - Sat, May 2
United Airlines Logo
5:05 am - 3:06 pm
GEG
-
TYS
7h 01m
1 stop
United Airlines Logo
10:49 am - 9:16 pm
TYS
-
GEG
13h 27m
2 stops
$392United Airlines
Tue, Apr 28 - Sat, May 2
United Airlines Logo
5:05 am - 7:56 pm
GEG
-
TYS
11h 51m
2 stops
United Airlines Logo
7:00 am - 12:39 pm
TYS
-
GEG
8h 39m
2 stops
$397United Airlines
Tue, Apr 28 - Sat, May 2
American Airlines Logo
7:48 am - 11:56 pm
IDA
-
TYS
14h 08m
2 stops
American Airlines Logo
6:00 am - 1:13 pm
TYS
-
IDA
9h 13m
1 stop
$404American Airlines
Tue, Apr 21 - Sat, Apr 25
American Airlines Logo
11:19 am - 11:59 pm
BOI
-
TYS
10h 40m
2 stops
American Airlines Logo
5:33 pm - 10:29 pm
TYS
-
BOI
6h 56m
1 stop
$407American Airlines
Tue, Jun 2 - Tue, Jun 9
Southwest Logo
7:00 am - 4:30 pm
GEG
-
TYS
6h 30m
1 stop
Southwest Logo
1:55 pm - 10:25 pm
TYS
-
GEG
11h 30m
2 stops
$407Southwest
Wed, Sep 2 - Wed, Sep 16
Southwest Logo
10:40 am - 8:20 pm
BOI
-
TYS
7h 40m
2 stops
Southwest Logo
2:45 pm - 10:55 pm
TYS
-
BOI
10h 10m
2 stops
$412Southwest
Tue, Jun 9 - Tue, Jun 16
Frontier Logo
1:25 pm - 7:33 pm
BOI
-
TYS
28h 08m
1 stop
Frontier Logo
8:32 pm - 12:09 pm
TYS
-
BOI
17h 37m
1 stop
$416Frontier
Tue, Jun 2 - Wed, Jun 10
Delta Logo
11:42 pm - 9:38 am
BOI
-
TYS
7h 56m
1 stop
Delta Logo
6:15 pm - 11:56 pm
TYS
-
BOI
7h 41m
2 stops
$421Delta
Fri, Aug 7 - Tue, Aug 11
Delta Logo
11:39 pm - 9:34 am
BOI
-
TYS
7h 55m
1 stop
Delta Logo
6:37 pm - 11:47 pm
TYS
-
BOI
7h 10m
1 stop
$437Delta
Tue, Jun 2 - Tue, Jun 9

Frontier flights from Idaho to Knoxville

Our best Frontier deals on Idaho to Knoxville flight tickets
Frontier
Jun 2
BOI1:25 pmBoise Air Term. Gowen Fld
28h 08m
1 stop
TYS7:33 pmKnoxville McGhee Tyson
Jun 10
TYS8:32 pmKnoxville McGhee Tyson
17h 37m
1 stop
BOI12:09 pmBoise Air Term. Gowen Fld
$416
Frontier
Jun 4
BOI1:25 pmBoise Air Term. Gowen Fld
28h 08m
1 stop
TYS7:33 pmKnoxville McGhee Tyson
Jun 10
TYS8:32 pmKnoxville McGhee Tyson
17h 37m
1 stop
BOI12:09 pmBoise Air Term. Gowen Fld
$522

Delta flights from Idaho to Knoxville

Our best Delta deals on Idaho to Knoxville flight tickets
Delta
Aug 7
BOI11:42 pmBoise Air Term. Gowen Fld
7h 56m
1 stop
TYS9:38 amKnoxville McGhee Tyson
Aug 11
TYS6:15 pmKnoxville McGhee Tyson
7h 41m
2 stops
BOI11:56 pmBoise Air Term. Gowen Fld
$421
Delta
Jun 2
BOI11:39 pmBoise Air Term. Gowen Fld
7h 55m
1 stop
TYS9:34 amKnoxville McGhee Tyson
Jun 9
TYS6:37 pmKnoxville McGhee Tyson
7h 10m
1 stop
BOI11:47 pmBoise Air Term. Gowen Fld
$437
Delta
Jul 2
BOI6:42 pmBoise Air Term. Gowen Fld
13h 40m
2 stops
TYS10:22 amKnoxville McGhee Tyson
Jul 8
TYS11:55 amKnoxville McGhee Tyson
12h 05m
2 stops
BOI10:00 pmBoise Air Term. Gowen Fld
$453

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 April 6, 2026.
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

Cheapest round-trip
Quickest round-trip

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Tue 4/28

5:05 am-3:06 pm

1 stop7h 01m

Knoxville McGhee Tyson

Sat 5/2

9:12 am-12:39 pm

1 stop6h 27m

$387

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Tue 4/28

5:05 am-3:06 pm

1 stop7h 01m

Knoxville McGhee Tyson

Sat 5/2

10:49 am-9:16 pm

2 stops13h 27m

$392

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Tue 4/28

5:05 am-7:56 pm

2 stops11h 51m

Knoxville McGhee Tyson

Sat 5/2

7:00 am-12:39 pm

2 stops8h 39m

$397

Idaho FallsKnoxville

IDA - TYS

IDATYS

Idaho Falls Fanning Field

Tue 4/21

7:48 am-11:56 pm

2 stops14h 08m

Knoxville McGhee Tyson

Sat 4/25

6:00 am-1:13 pm

1 stop9h 13m

$404

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 6/2

11:19 am-11:59 pm

2 stops10h 40m

Knoxville McGhee Tyson

Tue 6/9

5:33 pm-10:29 pm

1 stop6h 56m

$407

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Wed 9/2

7:00 am-4:30 pm

1 stop6h 30m

Knoxville McGhee Tyson

Wed 9/16

1:55 pm-10:25 pm

2 stops11h 30m

$407

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 6/9

10:40 am-8:20 pm

2 stops7h 40m

Knoxville McGhee Tyson

Tue 6/16

2:45 pm-10:55 pm

2 stops10h 10m

$412

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

8:32 pm-12:09 pm

1 stop17h 37m

$416

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Fri 8/7

11:42 pm-9:38 am

1 stop7h 56m

Knoxville McGhee Tyson

Tue 8/11

6:15 pm-11:56 pm

2 stops7h 41m

$421

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 6/2

11:39 pm-9:34 am

1 stop7h 55m

Knoxville McGhee Tyson

Tue 6/9

6:37 pm-11:47 pm

1 stop7h 10m

$437

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 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 September is, on average, the cheapest month to fly to Knoxville from Idaho, with most prices found around $326. If you aren’t able to travel during the month of September, then book flights to Knoxville from Idaho during August instead. Flights to Knoxville in August, while not as cheap as those in September, still average around $488.

Can stopping save me money on Idaho to Knoxville flights?

You could potentially save up to 34% 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 39m

Direct flights

None
The fastest flight from Idaho to Knoxville takes 5h 39m
There are no direct flights from Idaho to Knoxville. There are no popular flight routes from Idaho to Knoxville.
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Frequently asked questions about flying from Idaho to Knoxville

  • 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
American AirlinesPriceFrom $288Free CancellationRating
7.1
11,556 reviews
Search American Airlines flights
DeltaPriceFrom $294Free CancellationRating
7.9
8,387 reviews
Search Delta flights
United AirlinesPriceFrom $358Free CancellationRating
7.4
9,546 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $488Free CancellationRating
7.9
12,174 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
Newport
Lenoir City
Kodak
Dandridge
Clinton
Jefferson City
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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