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Knoxville

$188+ Cheap flights from Idaho to Knoxville (TYS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — TYS
nov. 29 — dic. 61
sáb. 11/29
sáb. 12/6
1 adult, Economy
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Cheap flight deals from Idaho to Knoxville

Keep the following information in mind while searching for Idaho to Knoxville flight deals. Data was last updated octubre 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$389
(Delta)

One-way from

$188
(Kiwi.com)

Popular in

March

Cheapest in

April

Average price

$564
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Knoxville McGhee Tyson flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Knoxville McGhee Tyson flights.
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From Idaho to Knoxville McGhee Tyson
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One-way flight from Idaho to Knoxville McGhee Tyson
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High demand for flights, 13% potential price rise
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Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find 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 octubre 30, 2025.

This American Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/95:17 amGEG - TYS
1 stop7h 15mAmerican Airlines
sáb. 12/134:22 pmTYS - GEG
1 stop8h 25mAmerican Airlines
Deal found 10/29$389
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/92:15 pmGEG - TYS
1 stop6h 03mDelta
sáb. 12/137:30 amTYS - GEG
2 stops11h 10mDelta
Deal found 10/29$394
This American Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/51:14 pmGEG - TYS
1 stop20h 30mAmerican Airlines
lun. 12/86:29 pmTYS - GEG
1 stop21h 01mAmerican Airlines
Deal found 10/29$430
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/52:15 pmGEG - TYS
1 stop6h 03mDelta
lun. 12/85:40 amTYS - GEG
2 stops9h 49mDelta
Deal found 10/29$442
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/2912:20 pmBOI - TYS
1 stop8h 19mUnited Airlines
lun. 1/55:45 amTYS - BOI
2 stops9h 51mUnited Airlines
Deal found 10/30$454
This Delta deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/118:45 amBOI - TYS
2 stops12h 43mDelta
sáb. 12/138:35 amTYS - BOI
2 stops12h 59mDelta
Deal found 10/28$479
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/412:51 pmGEG - TYS
1 stop7h 31mDelta
mar. 11/116:35 amTYS - GEG
1 stop9h 39mDelta
Deal found 10/27$485
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/152:31 pmBOI - TYS
1 stop5h 59mUnited Airlines
mié. 11/194:55 pmTYS - BOI
1 stop7h 50mUnited Airlines
Deal found 10/28$501
This Alaska Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/116:44 amBOI - TYS
1 stop8h 45mAlaska Airlines
sáb. 12/134:22 pmTYS - BOI
1 stop7h 59mAlaska Airlines
Deal found 10/30$503
This Delta deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/11:39 pmBOI - TYS
1 stop7h 28mDelta
sáb. 11/86:40 amTYS - BOI
1 stop9h 22mDelta
Deal found 10/28$505
This Delta deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/158:45 amBOI - TYS
2 stops8h 17mDelta
mié. 11/196:35 amTYS - BOI
1 stop9h 34mDelta
Deal found 10/28$506
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/112:45 pmBOI - TYS
1 stop5h 48mUnited Airlines
sáb. 11/810:50 amTYS - BOI
2 stops12h 46mUnited Airlines
Deal found 10/28$510

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated octubre 30, 2025.
Use the filters below to find and compare flights from Idaho to Knoxville that are best for you.

Fly from

Idaho

Fly to

Knoxville

Route

Depart

Return

Price

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

mar. 12/9

2:15 pm-11:18 pm

1 stop6h 03m

Knoxville McGhee Tyson

sáb. 12/13

7:30 am-3:40 pm

2 stops11h 10m

$394

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

dom. 1/25

7:20 am-8:56 pm

2 stops11h 36m

Knoxville McGhee Tyson

mié. 1/28

6:00 am-5:07 pm

2 stops13h 07m

$417

JacksonKnoxville

JAC - TYS

JACTYS

Jackson Hole

sáb. 2/28

5:30 pm-9:13 am

2 stops13h 43m

Knoxville McGhee Tyson

mar. 3/3

8:47 am-1:25 pm

1 stop6h 38m

$432

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

vie. 12/5

2:15 pm-11:18 pm

1 stop6h 03m

Knoxville McGhee Tyson

lun. 12/8

5:40 am-12:29 pm

2 stops9h 49m

$442

HaileyKnoxville

SUN - TYS

SUNTYS

Hailey Sun Valley-Friedman

vie. 3/6

1:20 pm-9:32 pm

1 stop6h 12m

Knoxville McGhee Tyson

mar. 3/10

8:15 am-12:30 pm

1 stop6h 15m

$451

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

lun. 12/29

12:20 pm-10:39 pm

1 stop8h 19m

Knoxville McGhee Tyson

lun. 1/5

5:45 am-1:36 pm

2 stops9h 51m

$454

Idaho FallsKnoxville

IDA - TYS

IDATYS

Idaho Falls Fanning Field

sáb. 3/7

4:19 pm-9:48 am

2 stops15h 29m

Knoxville McGhee Tyson

mié. 3/11

7:00 am-1:34 pm

2 stops8h 34m

$473

HaileyKnoxville

SUN - TYS

SUNTYS

Hailey Sun Valley-Friedman

vie. 3/6

1:35 pm-3:06 pm

2 stops23h 31m

Knoxville McGhee Tyson

mar. 3/10

5:30 am-2:52 pm

2 stops11h 22m

$475

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

jue. 12/11

8:45 am-11:28 pm

2 stops12h 43m

Knoxville McGhee Tyson

sáb. 12/13

8:35 am-7:34 pm

2 stops12h 59m

$479

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

mar. 11/4

12:51 pm-11:22 pm

1 stop7h 31m

Knoxville McGhee Tyson

mar. 11/11

6:35 am-1:14 pm

1 stop9h 39m

$485

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 40 results
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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 $419). 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?

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 octubre 30, 2025.

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

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?

    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 03m. Fly via Delta, American Airlines, or United Airlines to get the fastest option. Idaho and Knoxville are separated by a distance of 1892 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 Frontier. According to our data, you can fly for as low as $188. Users have also found prices from $210 and $219 on United Airlines 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 $419). 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

Traveling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Morristown
Cherokee
Crossville
Corbin
Bryson City
Alcoa
Oak Ridge
Murphy

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Top 4 airlines flying from Idaho to Knoxville

Discover the top 4 airlines that operate flights from Idaho to Knoxville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated octubre 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$254Average$458FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$258Average$433FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$318Average$528FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$379Average$625FlexibilityNo cancel feeOn-time75%

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