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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 4/7. 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.
United Airlines Logo
5:05 am - 3:06 pm
GEG
-
TYS
7h 01m
1 stop
United Airlines Logo
4:30 pm - 9:11 pm
TYS
-
GEG
7h 41m
1 stop
$377United Airlines
Wed, Apr 1 - Wed, Apr 8
American Airlines Logo
7:00 am - 3:37 pm
BOI
-
TYS
6h 37m
1 stop
American Airlines Logo
4:29 pm - 10:23 pm
TYS
-
BOI
7h 54m
1 stop
$385American Airlines
Tue, Mar 10 - Wed, Mar 18
United Airlines Logo
12:32 pm - 8:56 pm
BOI
-
TYS
6h 24m
1 stop
United Airlines Logo
6:30 am - 11:36 am
TYS
-
BOI
7h 06m
1 stop
$389United Airlines
Tue, Jun 2 - Tue, Jun 9
American Airlines Logo
6:33 pm - 8:42 am
BOI
-
TYS
12h 09m
2 stops
American Airlines Logo
4:29 pm - 10:23 pm
TYS
-
BOI
7h 54m
1 stop
$390American Airlines
Tue, Mar 10 - Wed, Mar 18
United Airlines Logo
12:32 pm - 8:56 pm
BOI
-
TYS
6h 24m
1 stop
United Airlines Logo
8:20 am - 5:56 pm
TYS
-
BOI
11h 36m
2 stops
$394United Airlines
Tue, Jun 2 - Tue, Jun 9
Delta Logo
5:30 am - 4:06 pm
BOI
-
TYS
8h 36m
2 stops
Delta Logo
11:02 am - 10:28 pm
TYS
-
BOI
13h 26m
2 stops
$410Delta
Wed, Apr 8 - Tue, Apr 14
Southwest Logo
5:15 pm - 12:00 pm
BOI
-
TYS
16h 45m
2 stops
Southwest Logo
5:40 pm - 12:25 am
TYS
-
BOI
8h 45m
2 stops
$411Southwest
Tue, Jun 2 - Tue, Jun 9
Delta Logo
10:40 pm - 9:27 am
GEG
-
TYS
7h 47m
1 stop
Delta Logo
6:45 am - 1:07 pm
TYS
-
GEG
9h 22m
1 stop
$423Delta
Fri, Jun 5 - Wed, Jun 10
Southwest Logo
8:15 pm - 11:50 am
BOI
-
TYS
13h 35m
2 stops
Southwest Logo
3:45 pm - 1:20 am
TYS
-
BOI
11h 35m
2 stops
$427Southwest
Mon, Mar 23 - Fri, Mar 27
Delta Logo
7:23 pm - 9:27 am
GEG
-
TYS
11h 04m
2 stops
Delta Logo
6:45 am - 1:07 pm
TYS
-
GEG
9h 22m
1 stop
$428Delta
Thu, Jun 4 - Wed, Jun 10

Southwest flights from Idaho to Knoxville

Our best Southwest deals on Idaho to Knoxville flight tickets
Southwest
Jun 2
BOI5:15 pmBoise Air Term. Gowen Fld
16h 45m
2 stops
TYS12:00 pmKnoxville McGhee Tyson
Jun 9
TYS5:40 pmKnoxville McGhee Tyson
8h 45m
2 stops
BOI12:25 amBoise Air Term. Gowen Fld
$411
Southwest
Mar 23
BOI8:15 pmBoise Air Term. Gowen Fld
13h 35m
2 stops
TYS11:50 amKnoxville McGhee Tyson
Mar 27
TYS3:45 pmKnoxville McGhee Tyson
11h 35m
2 stops
BOI1:20 amBoise Air Term. Gowen Fld
$427
Southwest
Apr 8
BOI6:00 amBoise Air Term. Gowen Fld
11h 40m
2 stops
TYS7:40 pmKnoxville McGhee Tyson
Apr 13
TYS2:45 pmKnoxville McGhee Tyson
10h 45m
2 stops
BOI11:30 pmBoise Air Term. Gowen Fld
$451

United Airlines flights from Idaho to Knoxville

Our best United Airlines deals on Idaho to Knoxville flight tickets
United Airlines
Apr 1
GEG5:05 amSpokane
7h 01m
1 stop
TYS3:06 pmKnoxville McGhee Tyson
Apr 8
TYS4:30 pmKnoxville McGhee Tyson
7h 41m
1 stop
GEG9:11 pmSpokane
$377
United Airlines
Jun 2
BOI12:32 pmBoise Air Term. Gowen Fld
6h 24m
1 stop
TYS8:56 pmKnoxville McGhee Tyson
Jun 9
TYS6:30 amKnoxville McGhee Tyson
7h 06m
1 stop
BOI11:36 amBoise Air Term. Gowen Fld
$389
United Airlines
Jun 2
BOI12:32 pmBoise Air Term. Gowen Fld
6h 24m
1 stop
TYS8:56 pmKnoxville McGhee Tyson
Jun 9
TYS8:20 amKnoxville McGhee Tyson
11h 36m
2 stops
BOI5:56 pmBoise Air Term. Gowen Fld
$394

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 February 15, 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

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Wed 4/1

5:05 am-3:06 pm

1 stop7h 01m

Knoxville McGhee Tyson

Wed 4/8

4:30 pm-9:11 pm

1 stop7h 41m

$377

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 3/10

7:00 am-3:37 pm

1 stop6h 37m

Knoxville McGhee Tyson

Wed 3/18

4:29 pm-10:23 pm

1 stop7h 54m

$385

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 6/2

12:32 pm-8:56 pm

1 stop6h 24m

Knoxville McGhee Tyson

Tue 6/9

6:30 am-11:36 am

1 stop7h 06m

$389

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 3/10

6:33 pm-8:42 am

2 stops12h 09m

Knoxville McGhee Tyson

Wed 3/18

4:29 pm-10:23 pm

1 stop7h 54m

$390

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 6/2

12:32 pm-8:56 pm

1 stop6h 24m

Knoxville McGhee Tyson

Tue 6/9

8:20 am-5:56 pm

2 stops11h 36m

$394

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Wed 4/8

5:30 am-4:06 pm

2 stops8h 36m

Knoxville McGhee Tyson

Tue 4/14

11:02 am-10:28 pm

2 stops13h 26m

$410

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 6/2

5:15 pm-12:00 pm

2 stops16h 45m

Knoxville McGhee Tyson

Tue 6/9

5:40 pm-12:25 am

2 stops8h 45m

$411

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Fri 6/5

10:40 pm-9:27 am

1 stop7h 47m

Knoxville McGhee Tyson

Wed 6/10

6:45 am-1:07 pm

1 stop9h 22m

$423

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Mon 3/23

8:15 pm-11:50 am

2 stops13h 35m

Knoxville McGhee Tyson

Fri 3/27

3:45 pm-1:20 am

2 stops11h 35m

$427

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Thu 6/4

7:23 pm-9:27 am

2 stops11h 04m

Knoxville McGhee Tyson

Wed 6/10

6:45 am-1:07 pm

1 stop9h 22m

$428

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 April is, on average, the cheapest month to fly to Knoxville from Idaho, with most prices found around $313. If you aren’t able to travel during the month of April, then book flights to Knoxville from Idaho during September instead. Flights to Knoxville in September, while not as cheap as those in April, still average around $338.

Can stopping save me money on Idaho to Knoxville flights?

You could potentially save up to 24% 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 50m

Direct flights

None
The fastest flight from Idaho to Knoxville takes 5h 50m
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
8,205 reviews
Search Delta flights
American AirlinesPriceFrom $258Free CancellationRating
7.2
11,297 reviews
Search American Airlines flights
United AirlinesPriceFrom $359Free CancellationRating
7.4
9,296 reviews
Search United 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
Alcoa
Crossville
Murphy
Oak Ridge
Lenoir City
Newport
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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