What airlines fly to Idaho?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Idaho from Knoxville according to our data. American Airlines is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 3 different airlines that fly to Idaho on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Knoxville McGhee Tyson to Idaho?

Allegiant Air, American Airlines, and Frontier are the most popular carriers operating from Knoxville McGhee Tyson to Idaho

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

Prices for flights from Knoxville McGhee Tyson Airport to Idaho are updated daily.

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

There are 3 operators available for flights from Knoxville McGhee Tyson Airport to Idaho as of June 2026.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to Idaho.

What documentation or ID do you need to fly to Idaho?

The travel and health documents required for your trip to Idaho 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 Idaho. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$152 Cheap Flights from Knoxville to Idaho in 2026

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Find the cheapest flights from Knoxville to Idaho

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:32 pm - 12:30 pm

TYS

BOI

17h 58m

1 stop

1:24 pm - 7:24 pm

BOI

TYS

28h 00m

1 stop

$340Frontier

Wed, Jul 1 - Sun, Jul 5

8:32 pm - 12:30 pm

TYS

BOI

17h 58m

1 stop

1:24 pm - 7:24 pm

BOI

TYS

28h 00m

1 stop

$343Frontier

Wed, Jul 1 - Sun, Jul 5

7:30 am - 7:05 pm

TYS

JAC

13h 35m

2 stops

1:10 pm - 11:46 pm

JAC

TYS

8h 36m

2 stops

$361Delta

Fri, Oct 23 - Tue, Oct 27

6:03 am - 11:54 am

TYS

GEG

8h 51m

1 stop

6:00 am - 4:42 pm

GEG

TYS

7h 42m

1 stop

$410American Airlines

Tue, Sep 1 - Sat, Sep 12

6:00 am - 11:32 am

TYS

BOI

7h 32m

1 stop

12:34 pm - 8:44 pm

BOI

TYS

6h 10m

1 stop

$412United Airlines

Tue, Jul 7 - Sat, Jul 11

6:15 pm - 11:09 pm

TYS

GEG

7h 54m

1 stop

5:15 am - 5:19 pm

GEG

TYS

9h 04m

2 stops

$415Delta

Wed, Aug 5 - Thu, Aug 20

6:50 am - 3:25 pm

TYS

BOI

10h 35m

2 stops

6:00 am - 4:30 pm

BOI

TYS

8h 30m

2 stops

$420Southwest

Sat, Aug 29 - Tue, Sep 8

1:55 pm - 9:30 pm

TYS

BOI

9h 35m

1 stop

6:00 am - 4:30 pm

BOI

TYS

8h 30m

2 stops

$421Southwest

Sat, Aug 29 - Tue, Sep 8

5:37 am - 11:59 am

TYS

GEG

9h 22m

1 stop

12:44 pm - 11:18 pm

GEG

TYS

7h 34m

1 stop

$427American Airlines

Sat, Aug 1 - Sat, Aug 15

6:00 am - 11:21 am

TYS

JAC

7h 21m

1 stop

7:00 am - 2:36 pm

JAC

TYS

5h 36m

1 stop

$431United Airlines

Fri, Oct 23 - Tue, Oct 27

United Airlines flights from Knoxville to Idaho

Our best United Airlines deals on Knoxville to Idaho flight tickets

United Airlines

Jul 7

TYS6:00 amKnoxville McGhee Tyson

7h 32m

1 stop

BOI11:32 amBoise Air Term. Gowen Fld

Jul 11

BOI12:34 pmBoise Air Term. Gowen Fld

6h 10m

1 stop

TYS8:44 pmKnoxville McGhee Tyson

$412

United Airlines

Oct 23

TYS6:00 amKnoxville McGhee Tyson

7h 21m

1 stop

JAC11:21 amJackson Hole

Oct 27

JAC7:00 amJackson Hole

5h 36m

1 stop

TYS2:36 pmKnoxville McGhee Tyson

$431

United Airlines

Jun 8

TYS6:00 amKnoxville McGhee Tyson

7h 35m

1 stop

JAC11:35 amJackson Hole

Jun 10

JAC2:44 pmJackson Hole

5h 35m

1 stop

TYS10:19 pmKnoxville McGhee Tyson

$433

American Airlines flights from Knoxville to Idaho

Our best American Airlines deals on Knoxville to Idaho flight tickets

American Airlines

Sep 1

TYS6:03 amKnoxville McGhee Tyson

8h 51m

1 stop

GEG11:54 amSpokane

Sep 12

GEG6:00 amSpokane

7h 42m

1 stop

TYS4:42 pmKnoxville McGhee Tyson

$410

American Airlines

Aug 1

TYS5:37 amKnoxville McGhee Tyson

9h 22m

1 stop

GEG11:59 amSpokane

Aug 15

GEG12:44 pmSpokane

7h 34m

1 stop

TYS11:18 pmKnoxville McGhee Tyson

$427

American Airlines

Sep 1

TYS7:19 amKnoxville McGhee Tyson

7h 35m

1 stop

GEG11:54 amSpokane

Sep 12

GEG6:00 amSpokane

7h 42m

1 stop

TYS4:42 pmKnoxville McGhee Tyson

$429

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Wed 7/1

8:32 pm-12:30 pm

1 stop17h 58m

Boise Air Term. Gowen Fld

Sun 7/5

1:24 pm-7:24 pm

1 stop28h 00m

$340

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Wed 7/1

8:32 pm-12:30 pm

1 stop17h 58m

Boise Air Term. Gowen Fld

Sun 7/5

1:24 pm-7:24 pm

1 stop28h 00m

$343

KnoxvilleJackson

TYS - JAC

TYSJAC

Knoxville McGhee Tyson

Fri 10/23

7:30 am-7:05 pm

2 stops13h 35m

Jackson Hole

Tue 10/27

1:10 pm-11:46 pm

2 stops8h 36m

$361

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

Tue 9/1

6:03 am-11:54 am

1 stop8h 51m

Spokane

Sat 9/12

6:00 am-4:42 pm

1 stop7h 42m

$410

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Tue 7/7

6:00 am-11:32 am

1 stop7h 32m

Boise Air Term. Gowen Fld

Sat 7/11

12:34 pm-8:44 pm

1 stop6h 10m

$412

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

Wed 8/5

6:15 pm-11:09 pm

1 stop7h 54m

Spokane

Thu 8/20

5:15 am-5:19 pm

2 stops9h 04m

$415

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Sat 8/29

6:50 am-3:25 pm

2 stops10h 35m

Boise Air Term. Gowen Fld

Tue 9/8

6:00 am-4:30 pm

2 stops8h 30m

$420

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

Sat 8/29

1:55 pm-9:30 pm

1 stop9h 35m

Boise Air Term. Gowen Fld

Tue 9/8

6:00 am-4:30 pm

2 stops8h 30m

$421

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

Sat 8/1

5:37 am-11:59 am

1 stop9h 22m

Spokane

Sat 8/15

12:44 pm-11:18 pm

1 stop7h 34m

$427

Quickest round-trip

KnoxvilleJackson

TYS - JAC

TYSJAC

Knoxville McGhee Tyson

Fri 10/23

6:00 am-11:21 am

1 stop7h 21m

Jackson Hole

Tue 10/27

7:00 am-2:36 pm

1 stop5h 36m

$431

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Knoxville to Idaho

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

Prices

Airlines

What is the cheapest month to fly to Idaho?

In general, April is the cheapest month to fly from Knoxville to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $259. If you don’t want to visit Idaho in April, then you should wait until December to fly from Knoxville, when ticket prices are also cheap, with an average price of $288.

Cheap Knoxville to Idaho flight deals and tips

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

Fastest flight time	5h 50m
Direct flights	None

The fastest flight from Knoxville to Idaho takes 5h 50m

There are no direct flights from Knoxville to Idaho. There are no popular flight routes from Knoxville to Idaho.

Search flight deals

Frequently asked questions about flying from Knoxville to Idaho

When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Idaho?
Prices for flights from Knoxville McGhee Tyson Airport to Idaho are updated daily.
How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Idaho?
There are 3 operators available for flights from Knoxville McGhee Tyson Airport to Idaho as of June 2026.
How old do you have to be to fly from Knoxville McGhee Tyson Airport to Idaho?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to Idaho.
What documentation or ID do you need to fly to Idaho?
The travel and health documents required for your trip to Idaho 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 Idaho. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Knoxville to Idaho

Compare and see reviews for airlines that fly from Knoxville to Idaho with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $288	Free Cancellation	Rating 7.1 11,649 reviews	Search American Airlines flights
Delta	PriceFrom $288	Free Cancellation	Rating 7.9 8,396 reviews	Search Delta flights
United Airlines	PriceFrom $350	Free Cancellation	Rating 7.4 9,777 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Knoxville to Idaho?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Knoxville to Idaho. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to Idaho from Knoxville with this policy.

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

momondo provides multiple filters to help you find the best flight to Idaho from Knoxville. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Knoxville to Idaho right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Knoxville to Idaho flights. All you need is a valid email address and we will do the rest; it is that quick and easy.