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Knoxville

$180+ 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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — TYS
Mar 14 — Mar 211
Sat 3/14
Sat 3/21
1 adult, Economy
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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 February 12, 2026.

This American Airlines deal was found by Cheapflights users on 2/10. 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.
Wed 2/253:06 pm
JAC
-
TYS
1 stop7h 22m
American Airlines
Sun 3/15:40 am
TYS
-
JAC
1 stop8h 58m
American Airlines
Deal found 2/10$359
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Wed 4/86:15 am
BOI
-
TYS
1 stop6h 51m
United Airlines
Tue 4/144:30 pm
TYS
-
BOI
1 stop6h 52m
United Airlines
Deal found 2/9$359
This United Airlines deal was found by Cheapflights users on 2/10. 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.
Tue 4/75:05 am
GEG
-
TYS
1 stop7h 01m
United Airlines
Tue 4/144:30 pm
TYS
-
GEG
1 stop7h 41m
United Airlines
Deal found 2/10$359
This Southwest deal was found by Cheapflights users on 2/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/86:00 am
BOI
-
TYS
2 stops11h 40m
Southwest
Tue 4/142:55 pm
TYS
-
BOI
2 stops10h 35m
Southwest
Deal found 2/9$369
This American Airlines deal was found by Cheapflights users on 2/10. 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.
Tue 3/107:00 am
BOI
-
TYS
1 stop6h 37m
American Airlines
Wed 3/184:29 pm
TYS
-
BOI
1 stop7h 54m
American Airlines
Deal found 2/10$385
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Mon 3/95:00 am
GEG
-
TYS
1 stop7h 02m
United Airlines
Mon 3/164:18 pm
TYS
-
GEG
1 stop8h 00m
United Airlines
Deal found 2/9$385
This Delta deal was found by Cheapflights users on 2/8. 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.
Tue 6/3011:30 pm
BOI
-
TYS
1 stop7h 41m
Delta
Wed 7/86:15 pm
TYS
-
BOI
1 stop7h 14m
Delta
Deal found 2/8$389
This Delta deal was found by Cheapflights users on 2/8. 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.
Tue 6/211:39 pm
BOI
-
TYS
1 stop7h 48m
Delta
Tue 6/93:20 pm
TYS
-
BOI
2 stops10h 36m
Delta
Deal found 2/8$394
This Southwest deal was found by Cheapflights users on 2/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/72:40 pm
GEG
-
TYS
2 stops18h 20m
Southwest
Tue 4/142:55 pm
TYS
-
GEG
2 stops11h 00m
Southwest
Deal found 2/10$394
This Delta deal was found by Cheapflights users on 2/8. 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.
Tue 3/105:30 am
BOI
-
TYS
2 stops8h 36m
Delta
Wed 3/185:40 am
TYS
-
BOI
2 stops10h 25m
Delta
Deal found 2/8$395
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Sat 3/75:00 am
GEG
-
TYS
1 stop7h 02m
United Airlines
Mon 3/94:18 pm
TYS
-
GEG
1 stop8h 00m
United Airlines
Deal found 2/9$399
This United Airlines deal was found by Cheapflights users on 2/8. 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.
Tue 10/275:00 am
IDA
-
TYS
1 stop7h 36m
United Airlines
Sat 10/314:25 pm
TYS
-
IDA
1 stop8h 28m
United Airlines
Deal found 2/8$399

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 February 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$359
(American Airlines)

One-way from

$180
(Delta)

Popular in

December

Cheapest in

April

Average price

$490
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
One-way flight from Idaho to Knoxville McGhee Tyson
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($101 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 12, 2026.
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

JacksonKnoxville

JAC - TYS

JACTYS

Jackson Hole

Wed 2/25

3:06 pm-12:28 am

1 stop7h 22m

Knoxville McGhee Tyson

Sun 3/1

5:40 am-12:38 pm

1 stop8h 58m

$359

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Wed 4/8

6:15 am-3:06 pm

1 stop6h 51m

Knoxville McGhee Tyson

Tue 4/14

4:30 pm-9:22 pm

1 stop6h 52m

$359

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Tue 4/7

5:05 am-3:06 pm

1 stop7h 01m

Knoxville McGhee Tyson

Tue 4/14

10:49 am-9:34 pm

2 stops13h 45m

$364

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Wed 4/8

6:00 am-7:40 pm

2 stops11h 40m

Knoxville McGhee Tyson

Tue 4/14

2:55 pm-11:30 pm

2 stops10h 35m

$369

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Wed 3/11

1:40 pm-11:57 pm

1 stop8h 17m

Knoxville McGhee Tyson

Wed 3/18

6:35 am-2:05 pm

1 stop9h 30m

$385

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 3/10

1:35 pm-11:20 pm

1 stop7h 45m

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

Wed 4/8

1:53 pm-11:56 pm

1 stop8h 03m

Knoxville McGhee Tyson

Wed 4/15

7:50 am-12:49 pm

1 stop6h 59m

$385

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Mon 3/9

5:00 am-3:02 pm

1 stop7h 02m

Knoxville McGhee Tyson

Mon 3/16

4:18 pm-9:18 pm

1 stop8h 00m

$385

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 6/30

11:30 pm-9:11 am

1 stop7h 41m

Knoxville McGhee Tyson

Wed 7/8

6:15 pm-11:29 pm

1 stop7h 14m

$389

SpokaneKnoxville

GEG - TYS

GEGTYS

Spokane

Tue 4/7

2:40 pm-12:00 pm

2 stops18h 20m

Knoxville McGhee Tyson

Tue 4/14

2:55 pm-10:55 pm

2 stops11h 00m

$394

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Showing 1-10 of 55 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 $389). 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.

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 51m. Fly via American Airlines, United Airlines, or Southwest to get the fastest option. Idaho and Knoxville are separated by a distance of 1782 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 American Airlines. According to our data, you can fly for as low as $179. Users have also found prices from $187 and $260 on Delta and United Airlines, respectively.

  • What are the most popular routes from Idaho to Knoxville?

    While some choose either Spokane - Knoxville McGhee Tyson or Jackson Hole - Knoxville McGhee Tyson, Boise Air Term. Gowen Fld - 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 $389). 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
Cherokee
Crossville
Corbin
Morristown
Bryson City
Alcoa
Oak Ridge
Murphy

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Top 3 airlines flying from Idaho to Knoxville

Discover the top 3 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 February 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$254Average$488FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$258Average$444FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$359Average$533FlexibilityNo cancel feeOn-time69%

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