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Cheap flights from Idaho to Knoxville from $219

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 1/16. 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.
Multiple Airlines Logo
12:48 pm - 7:10 pmBOI-TYS
28h 22m1 stop
Multiple Airlines Logo
7:00 am - 11:53 amTYS-BOI
6h 53m1 stop
$327Multiple Airlines
Find Deal
Fri, Nov 21 - Tue, Nov 25
Delta Logo
3:13 pm - 11:18 pmBOI-TYS
6h 05m1 stop
Delta Logo
5:40 am - 12:54 pmTYS-BOI
9h 14m1 stop
$359Delta
Find Deal
Tue, Dec 9 - Tue, Dec 16
American Airlines Logo
6:00 am - 5:42 pmGEG-TYS
8h 42m1 stop
American Airlines Logo
12:21 pm - 6:49 pmTYS-GEG
9h 28m1 stop
$372American Airlines
Find Deal
Sat, Feb 7 - Tue, Feb 10
American Airlines Logo
6:00 am - 5:42 pmGEG-TYS
8h 42m1 stop
American Airlines Logo
8:09 am - 6:49 pmTYS-GEG
13h 40m2 stops
$377American Airlines
Find Deal
Sat, Feb 7 - Tue, Feb 10
United Airlines Logo
5:00 am - 7:27 pmGEG-TYS
11h 27m2 stops
United Airlines Logo
11:40 am - 9:22 pmTYS-GEG
12h 42m2 stops
$382United Airlines
Find Deal
Sat, Feb 7 - Tue, Feb 10
United Airlines Logo
5:00 am - 9:02 pmGEG-TYS
13h 02m2 stops
United Airlines Logo
5:27 pm - 9:52 pmTYS-GEG
7h 25m1 stop
$392United Airlines
Find Deal
Sat, Jan 10 - Fri, Feb 20
Southwest Logo
5:10 am - 7:40 pmGEG-TYS
11h 30m2 stops
Southwest Logo
2:45 pm - 12:30 amTYS-GEG
12h 45m2 stops
$448Southwest
Find Deal
Wed, Apr 15 - Mon, Apr 20
Alaska Airlines Logo
1:25 pm - 11:50 pmBOI-TYS
8h 25m1 stop
Alaska Airlines Logo
5:24 am - 12:27 pmTYS-BOI
9h 03m1 stop
$503Alaska Airlines
Find Deal
Thu, Dec 11 - Sat, Dec 13
Southwest Logo
6:00 am - 8:20 pmBOI-TYS
12h 20m2 stops
Southwest Logo
2:40 pm - 11:40 pmTYS-BOI
11h 00m1 stop
$508Southwest
Find Deal
Fri, Apr 10 - Sun, Apr 12
Alaska Airlines Logo
8:16 pm - 11:35 amBOI-TYS
13h 19m2 stops
Alaska Airlines Logo
5:23 am - 12:37 pmTYS-BOI
9h 14m1 stop
$527Alaska Airlines
Find Deal
Mon, Dec 15 - Tue, Dec 30

Delta flights from Idaho to Knoxville

Our best Delta deals on Idaho to Knoxville flight tickets
Delta
Dec 9
BOI3:13 pmBoise Air Term. Gowen Fld
6h 05m
1 stop
TYS11:18 pmKnoxville McGhee Tyson
Dec 16
TYS5:40 amKnoxville McGhee Tyson
9h 14m
1 stop
BOI12:54 pmBoise Air Term. Gowen Fld
$359
Find similar
Delta
Dec 9
BOI11:44 amBoise Air Term. Gowen Fld
9h 34m
2 stops
TYS11:18 pmKnoxville McGhee Tyson
Dec 16
TYS5:40 amKnoxville McGhee Tyson
9h 14m
1 stop
BOI12:54 pmBoise Air Term. Gowen Fld
$364
Find similar
Delta
Dec 9
BOI11:10 amBoise Air Term. Gowen Fld
10h 08m
2 stops
TYS11:18 pmKnoxville McGhee Tyson
Dec 16
TYS3:57 pmKnoxville McGhee Tyson
10h 12m
2 stops
BOI12:09 amBoise Air Term. Gowen Fld
$369
Find similar

American Airlines flights from Idaho to Knoxville

Our best American Airlines deals on Idaho to Knoxville flight tickets
American Airlines
Feb 7
GEG6:00 amSpokane
8h 42m
1 stop
TYS5:42 pmKnoxville McGhee Tyson
Feb 10
TYS12:21 pmKnoxville McGhee Tyson
9h 28m
1 stop
GEG6:49 pmSpokane
$372
Find similar
American Airlines
Feb 7
GEG6:00 amSpokane
8h 42m
1 stop
TYS5:42 pmKnoxville McGhee Tyson
Feb 10
TYS8:09 amKnoxville McGhee Tyson
13h 40m
2 stops
GEG6:49 pmSpokane
$377
Find similar
American Airlines
Feb 19
GEG5:51 amSpokane
6h 44m
1 stop
TYS3:35 pmKnoxville McGhee Tyson
Feb 23
TYS12:19 pmKnoxville McGhee Tyson
13h 53m
2 stops
GEG11:12 pmSpokane
$390
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 November 10, 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

Fri 11/21

12:48 pm-7:10 pm

1 stop28h 22m

Knoxville McGhee Tyson

Tue 11/25

7:00 am-11:53 am

1 stop6h 53m

$327

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 12/9

3:13 pm-11:18 pm

1 stop6h 05m

Knoxville McGhee Tyson

Tue 12/16

5:40 am-12:54 pm

1 stop9h 14m

$359

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Sat 2/7

6:00 am-5:42 pm

1 stop8h 42m

Knoxville McGhee Tyson

Tue 2/10

12:21 pm-6:49 pm

1 stop9h 28m

$372

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Sat 2/7

6:00 am-5:42 pm

1 stop8h 42m

Knoxville McGhee Tyson

Tue 2/10

8:09 am-6:49 pm

2 stops13h 40m

$377

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Sat 2/7

5:00 am-7:27 pm

2 stops11h 27m

Knoxville McGhee Tyson

Tue 2/10

11:40 am-9:22 pm

2 stops12h 42m

$382

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Sat 1/10

5:00 am-9:02 pm

2 stops13h 02m

Knoxville McGhee Tyson

Fri 2/20

5:27 pm-9:52 pm

1 stop7h 25m

$392

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Wed 4/15

5:10 am-7:40 pm

2 stops11h 30m

Knoxville McGhee Tyson

Mon 4/20

2:45 pm-12:30 am

2 stops12h 45m

$448

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Thu 12/11

1:25 pm-11:50 pm

1 stop8h 25m

Knoxville McGhee Tyson

Sat 12/13

5:24 am-12:27 pm

1 stop9h 03m

$503

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Fri 4/10

6:00 am-8:20 pm

2 stops12h 20m

Knoxville McGhee Tyson

Sun 4/12

2:40 pm-11:40 pm

1 stop11h 00m

$508

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Mon 12/15

8:16 pm-11:35 am

2 stops13h 19m

Knoxville McGhee Tyson

Tue 12/30

5:23 am-12:37 pm

1 stop9h 14m

$527

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 $286. 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.

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.

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 Idaho 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 Idaho to Knoxville flights?

You could potentially save up to 14% 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

Direct flights

None
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
8,007 reviews
Search Delta flights
American AirlinesPriceFrom $258Free CancellationRating
7.2
11,045 reviews
Search American Airlines flights
United AirlinesPriceFrom $318Free CancellationRating
7.4
9,012 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $379Free CancellationRating
8.0
11,268 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
Crossville
Maryville
Murphy
Alcoa
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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