How long is the flight from Idaho to Knoxville?

There are many flights that can get you from Idaho to Knoxville in 6h 22m. Fly via American Airlines, United Airlines, or Delta to get the fastest option. Idaho and Knoxville are separated by a distance of 1511 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What are the cheapest airlines to fly from Idaho to Knoxville one-way?

For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $159. Users have also found prices from $159 and $194 on Delta and American Airlines, respectively.

In terms of precipitation, rainfall in Knoxville ranges from 2.7 - 4.8 inches per month. March is typically the wettest month, when rainfall can reach 4.8 in. October is typically the driest time to visit Knoxville when rainfall is around 2.7 in.

If weather is an important factor for your trip to Knoxville, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

What are the most popular routes from Idaho to Knoxville?

While some choose either Boise Air Term. Gowen Fld - Knoxville McGhee Tyson or Idaho Falls Fanning Field - Knoxville McGhee Tyson, Spokane - Knoxville McGhee Tyson is the most popular route from Idaho to Knoxville.

What are the most popular airlines that fly from Idaho to Knoxville?

When booking a flight from Idaho to Knoxville, you may want to consider flying on American Airlines, United Airlines or Delta as they are the most popular for this route.

What airport do you fly into for flights to Knoxville from Idaho?

For a flight from Idaho to Knoxville, you will be flying into McGhee Tyson. Knoxville McGhee Tyson (TYS) is just 11.3 mi from the center of the city.

Can I find deals for flights from Idaho to Knoxville that include hotel bookings?

Yes. In addition to deals on Idaho to Knoxville flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Idaho to Knoxville?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho to Knoxville.

Can I find deals for business class flights from Idaho to Knoxville?

Yes. Cheapflights offers flight deals from Idaho to Knoxville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$321+ Flights from Idaho to Knoxville

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Idaho to Knoxville with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Idaho to Knoxville

Cheapest flights from Idaho to Knoxville
Explore the most affordable flight options available from Idaho to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

Mon 12/296:07 amGEG - TYS

1 stop6h 49mAmerican Airlines

Sat 1/35:08 pmTYS - GEG

1 stop7h 20mAmerican Airlines

Deal found 12/22

$675

Mon 12/225:05 amGEG - TYS

1 stop6h 55mUnited Airlines

Tue 12/309:50 amTYS - GEG

2 stops14h 08mUnited Airlines

Deal found 12/20

$687

Mon 12/295:05 amGEG - TYS

1 stop6h 55mUnited Airlines

Sat 1/36:45 amTYS - GEG

2 stops11h 34mUnited Airlines

Deal found 12/21

$718

Mon 12/226:47 amGEG - TYS

1 stop11h 34mAmerican Airlines

Tue 12/307:48 amTYS - GEG

1 stop16h 40mAmerican Airlines

Deal found 12/20

$803

Best flights from Idaho to Knoxville
Discover carefully curated flight deals from Idaho to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.

Tue 2/36:00 amGEG - TYS

1 stop6h 46mAmerican Airlines

Tue 2/1012:21 pmTYS - GEG

1 stop9h 28mAmerican Airlines

Deal found 12/21

$321

Mon 1/122:00 pmGEG - TYS

1 stop6h 09mDelta

Mon 1/196:30 amTYS - GEG

1 stop9h 33mDelta

Deal found 12/21

$359

Fri 2/612:30 pmJAC - TYS

1 stop6h 22mUnited Airlines

Mon 2/96:45 amTYS - JAC

1 stop6h 37mUnited Airlines

Deal found 12/20

$379

Tue 3/177:10 pmBOI - TYS

2 stops14h 40mSouthwest

Mon 3/233:45 pmTYS - BOI

2 stops12h 10mSouthwest

Deal found 12/21

$429

Tue 2/106:00 amGEG - TYS

1 stop6h 46mAmerican Airlines

Tue 2/1712:20 pmTYS - GEG

1 stop8h 14mAmerican Airlines

Deal found 12/21

$321

Thu 1/2912:43 pmSUN - TYS

1 stop6h 09mUnited Airlines

Mon 2/26:45 amTYS - SUN

1 stop7h 17mUnited Airlines

Deal found 12/20

$379

Thu 1/297:20 amBOI - TYS

1 stop6h 26mAmerican Airlines

Sat 2/77:44 amTYS - BOI

2 stops13h 41mAmerican Airlines

Deal found 12/21

$364

Wed 1/712:55 pmGEG - TYS

1 stop7h 50mDelta

Wed 1/145:40 amTYS - GEG

1 stop9h 05mDelta

Deal found 12/22

$413

Thu 2/512:43 pmSUN - TYS

1 stop6h 09mUnited Airlines

Mon 2/96:45 amTYS - SUN

1 stop7h 17mUnited Airlines

Deal found 12/21

$379

Thu 2/192:05 pmGEG - TYS

1 stop6h 07mDelta

Mon 2/2312:00 pmTYS - GEG

2 stops10h 57mDelta

Deal found 12/22

$414

Sat 5/161:42 pmBOI - TYS

1 stop8h 05mAmerican Airlines

Sat 5/234:29 pmTYS - BOI

1 stop8h 36mAmerican Airlines

Deal found 12/21

$389

Fri 1/232:40 pmIDA - TYS

1 stop5h 51mUnited Airlines

Tue 1/274:25 pmTYS - IDA

1 stop6h 49mUnited Airlines

Deal found 12/22

$399

Thu 1/299:15 amBOI - TYS

2 stops11h 54mDelta

Sat 2/75:40 amTYS - BOI

2 stops10h 27mDelta

Deal found 12/21

$429

Tue 1/67:20 amBOI - TYS

1 stop8h 22mAmerican Airlines

Sat 1/1012:21 pmTYS - BOI

1 stop9h 04mAmerican Airlines

Deal found 12/21

$505

Tue 1/65:00 amIDA - TYS

2 stops9h 53mUnited Airlines

Sat 1/109:30 amTYS - IDA

2 stops13h 46mUnited Airlines

Deal found 12/22

$507

Mon 4/66:10 amLWS - TYS

2 stops31h 33mDelta

Tue 4/145:30 amTYS - LWS

2 stops9h 03mDelta

Deal found 12/22

$536

Sun 1/182:40 pmIDA - TYS

1 stop5h 51mUnited Airlines

Thu 1/224:25 pmTYS - IDA

1 stop6h 49mUnited Airlines

Deal found 12/22

$521

Sun 4/512:10 pmLWS - TYS

2 stops24h 56mDelta

Tue 4/145:30 amTYS - LWS

2 stops9h 03mDelta

Deal found 12/22

$561

Sun 1/182:40 pmIDA - TYS

1 stop5h 51mUnited Airlines

Wed 1/214:25 pmTYS - IDA

1 stop6h 49mUnited Airlines

Deal found 12/22

$521

Tue 4/76:10 amLWS - TYS

2 stops25h 21mDelta

Wed 4/156:16 amTYS - LWS

2 stops19h 42mDelta

Deal found 12/22

$617

Mon 4/66:10 amLWS - TYS

2 stops30h 56mDelta

Wed 4/156:16 amTYS - LWS

2 stops19h 42mDelta

Deal found 12/22

$617

Wed 4/812:10 pmLWS - TYS

2 stops32h 41mDelta

Mon 4/135:40 pmTYS - LWS

2 stops32h 18mDelta

Deal found 12/22

$634

Thu 4/212:10 pmLWS - TYS

2 stops32h 41mDelta

Mon 4/135:40 pmTYS - LWS

2 stops32h 18mDelta

Deal found 12/22

$644

Sun 4/512:10 pmLWS - TYS

2 stops24h 56mDelta

Mon 4/135:40 pmTYS - LWS

2 stops32h 18mDelta

Deal found 12/22

$644

Thu 4/212:10 pmLWS - TYS

2 stops24h 56mDelta

Thu 4/95:01 pmTYS - LWS

2 stops21h 26mDelta

Deal found 12/22

$655

Wed 4/86:10 amLWS - TYS

2 stops13h 48mDelta

Wed 4/158:50 amTYS - LWS

2 stops17h 08mDelta

Deal found 12/22

$679

Fri 4/312:10 pmLWS - TYS

2 stops25h 03mDelta

Tue 4/145:30 amTYS - LWS

2 stops9h 03mDelta

Deal found 12/22

$681

Thu 4/212:10 pmLWS - TYS

2 stops32h 41mDelta

Wed 4/155:30 amTYS - LWS

2 stops20h 28mDelta

Deal found 12/22

$694

Sun 4/512:10 pmLWS - TYS

2 stops24h 56mDelta

Wed 4/155:30 amTYS - LWS

2 stops20h 28mDelta

Deal found 12/22

$694

Last-minute flights from Idaho to Knoxville
Discover last-minute flight deals from Idaho to Knoxville. Data last updated December 23, 2025 and is based on user searches.

Sat 1/312:02 pmGEG - TYS

1 stop22h 09mMultiple Airlines

Tue 1/67:22 pmTYS - GEG

2 stops51h 46mMultiple Airlines

Deal found 12/21

$490

Tue 1/67:20 amBOI - TYS

1 stop8h 22mAmerican Airlines

Sat 1/1012:21 pmTYS - BOI

1 stop9h 04mAmerican Airlines

Deal found 12/21

$505

Tue 1/65:00 amIDA - TYS

2 stops9h 53mUnited Airlines

Sat 1/109:30 amTYS - IDA

2 stops13h 46mUnited Airlines

Deal found 12/22

$507

Tue 1/611:20 amBOI - TYS

2 stops9h 49mDelta

Sat 1/106:30 amTYS - BOI

1 stop9h 32mDelta

Deal found 12/21

$510

Wed 1/712:55 pmGEG - TYS

1 stop7h 50mDelta

Wed 1/145:40 amTYS - GEG

1 stop9h 05mDelta

Deal found 12/22

$413

Wed 1/76:02 amGEG - TYS

2 stops13h 45mAmerican Airlines

Wed 1/1410:11 amTYS - GEG

2 stops11h 38mAmerican Airlines

Deal found 12/22

$442

Mon 1/122:00 pmGEG - TYS

1 stop6h 09mDelta

Mon 1/196:30 amTYS - GEG

1 stop9h 33mDelta

Deal found 12/21

$359

Sun 1/182:40 pmIDA - TYS

1 stop5h 51mUnited Airlines

Thu 1/224:25 pmTYS - IDA

1 stop6h 49mUnited Airlines

Deal found 12/22

$521

Fri 1/232:40 pmIDA - TYS

1 stop5h 51mUnited Airlines

Tue 1/274:25 pmTYS - IDA

1 stop6h 49mUnited Airlines

Deal found 12/21

$399

Thu 1/297:20 amBOI - TYS

1 stop6h 26mAmerican Airlines

Sat 2/77:44 amTYS - BOI

2 stops13h 41mAmerican Airlines

Deal found 12/23

$364

Thu 1/2912:43 pmSUN - TYS

1 stop6h 09mUnited Airlines

Mon 2/26:45 amTYS - SUN

1 stop7h 17mUnited Airlines

Deal found 12/20

$379

Thu 1/291:40 pmBOI - TYS

1 stop8h 05mDelta

Sat 2/76:30 amTYS - BOI

1 stop9h 37mDelta

Deal found 12/21

$417

Find flight deals from Idaho to Knoxville

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$321 (American Airlines)
Popular in	March
Cheapest in	January
Average price	$646

Provider with most accurate pricing for Boise Air Term. Gowen Fld-Knoxville McGhee Tyson flight deals.

Search Deals

Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Knoxville McGhee Tyson flights.

Search Deals

From Idaho to Knoxville McGhee Tyson

Search Deals

High demand for flights, 1% potential price rise

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($24 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Tue 2/3

6:00 am-3:46 pm

1 stop6h 46m

Knoxville McGhee Tyson

Tue 2/10

12:21 pm-6:49 pm

1 stop9h 28m

$321

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Tue 2/10

6:00 am-3:46 pm

1 stop6h 46m

Knoxville McGhee Tyson

Tue 2/17

12:20 pm-5:34 pm

1 stop8h 14m

$321

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Mon 1/12

2:00 pm-11:09 pm

1 stop6h 09m

Knoxville McGhee Tyson

Mon 1/19

6:30 am-1:03 pm

1 stop9h 33m

$359

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Thu 1/29

7:20 am-3:46 pm

1 stop6h 26m

Knoxville McGhee Tyson

Sat 2/7

7:44 am-7:25 pm

2 stops13h 41m

$364

JacksonKnoxville

JAC - TYS

JACTYS

Jackson Hole

Fri 2/6

12:30 pm-8:52 pm

1 stop6h 22m

Knoxville McGhee Tyson

Mon 2/9

6:45 am-11:22 am

1 stop6h 37m

$379

HaileyKnoxville

SUN - TYS

SUNTYS

Hailey Sun Valley-Friedman

Thu 1/29

12:43 pm-8:52 pm

1 stop6h 09m

Knoxville McGhee Tyson

Mon 2/2

6:45 am-12:02 pm

1 stop7h 17m

$379

HaileyKnoxville

SUN - TYS

SUNTYS

Hailey Sun Valley-Friedman

Thu 2/5

12:43 pm-8:52 pm

1 stop6h 09m

Knoxville McGhee Tyson

Mon 2/9

6:45 am-12:02 pm

1 stop7h 17m

$379

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Sat 5/16

1:42 pm-11:47 pm

1 stop8h 05m

Knoxville McGhee Tyson

Sat 5/23

4:29 pm-11:05 pm

1 stop8h 36m

$389

Idaho FallsKnoxville

IDA - TYS

IDATYS

Idaho Falls Fanning Field

Fri 1/23

2:40 pm-10:31 pm

1 stop5h 51m

Knoxville McGhee Tyson

Tue 1/27

4:25 pm-9:14 pm

1 stop6h 49m

$399

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Wed 1/7

12:55 pm-11:45 pm

1 stop7h 50m

Knoxville McGhee Tyson

Wed 1/14

5:40 am-11:45 am

1 stop9h 05m

$413

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 29 results

Best time to book a flight from Idaho to Knoxville

Have a flexible travel schedule? Discover the best time to fly to Knoxville from Idaho with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Idaho to Knoxville

What is the cheapest month to book a flight from Idaho to Knoxville?

Currently, September is the cheapest month in which you can book a flight from Idaho to Knoxville (average of $236). Flying from Idaho to Knoxville in December is currently the most expensive (average of $412). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ID to TYS?

One of the essential ways to save on airfare from Idaho to Knoxville is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 46% on airfare.

Related info for your journey

What airport do you fly into for flights to Knoxville from Idaho?
For a flight from Idaho to Knoxville, you will be flying into McGhee Tyson. Knoxville McGhee Tyson (TYS) is just 11.3 mi from the center of the city.
How long is the flight from Idaho to Knoxville?
There are many flights that can get you from Idaho to Knoxville in 6h 22m. Fly via American Airlines, United Airlines, or Delta to get the fastest option. Idaho and Knoxville are separated by a distance of 1511 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the cheapest airlines to fly from Idaho to Knoxville one-way?
For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $159. Users have also found prices from $159 and $194 on Delta and American Airlines, respectively.
What are the most popular routes from Idaho to Knoxville?
While some choose either Boise Air Term. Gowen Fld - Knoxville McGhee Tyson or Idaho Falls Fanning Field - Knoxville McGhee Tyson, Spokane - Knoxville McGhee Tyson is the most popular route from Idaho to Knoxville.
Can I find deals for flights from Idaho to Knoxville that include hotel bookings?
Yes. In addition to deals on Idaho to Knoxville flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Idaho to Knoxville?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho to Knoxville.
Can I find deals for business class flights from Idaho to Knoxville?
Yes. Cheapflights offers flight deals from Idaho to Knoxville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Idaho to Knoxville?
Currently, September is the cheapest month in which you can book a flight from Idaho to Knoxville (average of $236). Flying from Idaho to Knoxville in December is currently the most expensive (average of $412). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Cherokee

Crossville

Corbin

Morristown

Bryson City

Alcoa

Oak Ridge

Murphy

Browse thousands of different options on Cheapflights for your next trip

Top 4 airlines flying from Idaho to Knoxville

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$254	Average$502	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$258	Average$442	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$318	Average$549	FlexibilityNo cancel fee	On-time69%
Alaska Airlines	Cheapest$379	Average$672	FlexibilityNo cancel fee	On-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$321+ Cheap flights from Idaho to Knoxville (TYS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/3. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Idaho to Knoxville with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Idaho to Knoxville

Cheapest flights from Idaho to KnoxvilleExplore the most affordable flight options available from Idaho to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

Explore the most affordable flight options available from Idaho to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

Find flight deals from Idaho to Knoxville

Keep the following information in mind while searching for Idaho to Knoxville flight deals. Data was last updated December 23, 2025.

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Idaho to Knoxville that are best for you.

Best time to book a flight from Idaho to Knoxville

Have a flexible travel schedule? Discover the best time to fly to Knoxville from Idaho with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Idaho to Knoxville

What is the cheapest month to book a flight from Idaho to Knoxville?

What is the cheapest time of day to fly from ID to TYS?

Find hourly flight availability from Idaho to Knoxville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 23, 2025.

Related info for your journey

Find useful and relevant information for your journey from Idaho to Knoxville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Knoxville from Idaho?

How long is the flight from Idaho to Knoxville?

What are the cheapest airlines to fly from Idaho to Knoxville one-way?

What are the most popular routes from Idaho to Knoxville?

Can I find deals for flights from Idaho to Knoxville that include hotel bookings?

How can I find direct flights from Idaho to Knoxville?

Can I find deals for business class flights from Idaho to Knoxville?

What is the cheapest month to book a flight from Idaho to Knoxville?

Traveling to a place near Knoxville?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Idaho to Knoxville

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Idaho to Knoxville

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Idaho to Knoxville
Explore the most affordable flight options available from Idaho to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.