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$115+ Cheap flights from Knoxville (TYS) to Idaho

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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — BOI
ene. 22 — ene. 291
mié. 1/22
mié. 1/29
1 adult, Economy
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Cheap flight deals from Knoxville to Idaho

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Idaho (USID). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated enero 17, 2025.

Round-trip from

$229
(Delta)

One-way from

$115
(Delta)
From Knoxville McGhee Tyson to Idaho
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One-way flight from Knoxville McGhee Tyson to Idaho
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Find flight deals from Knoxville to Idaho

Cheapest flights from Knoxville to Idaho
Explore the most affordable flight options available from Knoxville to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 17, 2025.

This Delta deal was found by Cheapflights users on 1/16. 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. 2/115:45 amTYS - GEG
1 stop9h 15mDelta
mar. 2/251:10 pmGEG - TYS
1 stop7h 37mDelta
Deal found 1/16$229
This American Airlines deal was found by Cheapflights users on 1/14. 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. 3/115:51 amTYS - BOI
1 stop8h 55mAmerican Airlines
mar. 4/11:36 pmBOI - TYS
1 stop8h 22mAmerican Airlines
Deal found 1/14$229
This United Airlines deal was found by Cheapflights users on 1/16. 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.
mar. 2/119:10 amTYS - GEG
2 stops14h 43mUnited Airlines
mar. 2/255:00 amGEG - TYS
2 stops12h 02mUnited Airlines
Deal found 1/16$239
This Delta deal was found by Cheapflights users on 1/16. 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. 2/75:45 amTYS - BOI
1 stop8h 43mDelta
mar. 2/111:39 pmBOI - TYS
1 stop8h 08mDelta
Deal found 1/16$259
This United Airlines deal was found by Cheapflights users on 1/15. 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.
mié. 1/292:35 pmTYS - BOI
2 stops10h 21mUnited Airlines
lun. 2/38:00 amBOI - TYS
2 stops12h 41mUnited Airlines
Deal found 1/15$384
This American Airlines deal was found by Cheapflights users on 1/16. 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.
sáb. 2/225:28 amTYS - JAC
1 stop8h 29mAmerican Airlines
sáb. 3/13:47 pmJAC - TYS
1 stop6h 02mAmerican Airlines
Deal found 1/16$389
This Delta deal was found by Cheapflights users on 1/15. 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.
mié. 2/51:00 pmTYS - IDA
2 stops11h 44mDelta
lun. 2/106:58 pmIDA - TYS
2 stops12h 18mDelta
Deal found 1/15$394
This American Airlines deal was found by Cheapflights users on 1/15. 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.
mié. 2/55:23 amTYS - IDA
1 stop9h 02mAmerican Airlines
lun. 2/105:30 amIDA - TYS
2 stops13h 19mAmerican Airlines
Deal found 1/15$472
This United deal was found by Cheapflights users on 1/14. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 4/57:00 amTYS - JAC
1 stop6h 30mUnited Airlines
sáb. 4/1210:40 amJAC - TYS
2 stops9h 44mUnited Airlines
Deal found 1/14$484
This Mytrip deal was found by Cheapflights users on 1/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 1/301:41 pmTYS - BOI
3 stops31h 02mMultiple Airlines
dom. 2/27:38 pmBOI - TYS
2 stops16h 22mMultiple Airlines
Deal found 1/15$487
This American Airlines deal was found by Cheapflights users on 1/16. 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.
mié. 2/1912:19 pmTYS - GEG
1 stop9h 33mAmerican Airlines
lun. 3/105:34 amGEG - TYS
1 stop6h 45mAmerican Airlines
Deal found 1/16$499
This Mytrip deal was found by Cheapflights users on 1/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/57:15 amTYS - GEG
2 stops28h 27mMultiple Airlines
dom. 3/99:27 amGEG - TYS
3 stops32h 54mMultiple Airlines
Deal found 1/16$517

Find flights from Knoxville to Idaho within your budget

Customize your flight search to find flights from Knoxville to Idaho 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 enero 17, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

mar. 2/11

5:45 am-12:00 pm

1 stop9h 15m

Spokane

mar. 2/25

1:10 pm-11:47 pm

1 stop7h 37m

$229

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

mar. 2/11

9:10 am-8:53 pm

2 stops14h 43m

Spokane

mar. 2/25

5:00 am-8:02 pm

2 stops12h 02m

$239

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

vie. 2/7

5:45 am-12:28 pm

1 stop8h 43m

Boise Air Term. Gowen Fld

mar. 2/11

1:39 pm-11:47 pm

1 stop8h 08m

$259

KnoxvilleJackson

TYS - JAC

TYSJAC

Knoxville McGhee Tyson

sáb. 2/22

5:28 am-11:57 am

1 stop8h 29m

Jackson Hole

sáb. 3/1

3:47 pm-11:49 pm

1 stop6h 02m

$389

KnoxvilleIdaho Falls

TYS - IDA

TYSIDA

Knoxville McGhee Tyson

mié. 2/5

1:00 pm-10:44 pm

2 stops11h 44m

Idaho Falls Fanning Field

lun. 2/10

6:58 pm-9:16 am

2 stops12h 18m

$394

KnoxvilleIdaho Falls

TYS - IDA

TYSIDA

Knoxville McGhee Tyson

mié. 2/5

5:23 am-12:25 pm

1 stop9h 02m

Idaho Falls Fanning Field

lun. 2/10

5:30 am-8:49 pm

2 stops13h 19m

$472

KnoxvilleJackson

TYS - JAC

TYSJAC

Knoxville McGhee Tyson

sáb. 4/5

7:00 am-11:30 am

1 stop6h 30m

Jackson Hole

sáb. 4/12

10:40 am-10:24 pm

2 stops9h 44m

$484

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

mié. 2/19

12:19 pm-6:52 pm

1 stop9h 33m

Spokane

lun. 3/10

5:34 am-3:19 pm

1 stop6h 45m

$499

KnoxvilleSpokane

TYS - GEG

TYSGEG

Knoxville McGhee Tyson

mié. 3/5

7:15 am-8:42 am

2 stops28h 27m

Spokane

dom. 3/9

9:27 am-9:21 pm

3 stops32h 54m

$517

KnoxvilleBoise

TYS - BOI

TYSBOI

Knoxville McGhee Tyson

jue. 2/13

6:01 pm-6:46 pm

3 stops26h 45m

Boise Air Term. Gowen Fld

mar. 2/18

7:41 pm-7:03 pm

3 stops21h 22m

$536

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

Showing 1-10 of 21 results
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Best time to book a flight from Knoxville to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from Knoxville 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.

Travel insights for flights from Knoxville to Idaho

Get recent, data-driven insights about flights from Knoxville to Idaho including ideal travel times, pricing trends, and more.

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

Currently, October is the cheapest month in which you can book a flight from Knoxville to Idaho (average of $314). Flying from Knoxville to Idaho in June is currently the most expensive (average of $436). 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 TYS to ID?

Find hourly flight availability from Knoxville to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated enero 17, 2025.

When flying from Knoxville to Idaho, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Idaho by month

Plan your trip to Idaho by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Idaho ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Idaho when rainfall is around 0.2 in.

Temperature in Idaho by month

Plan your trip to Idaho by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Idaho, 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 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho. Reviews last updated enero 17, 2025.
Peruse reviews from past customers who have flown with American Airlines, United Airlines and Delta from Knoxville to Idaho to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,681 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines
8.0
Very good
9,681 reviews
Alaska Airlines
8.0
Very good
9,681 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta
8.0
Very good
8,511 reviews
Alaska Airlines
8.0
Very good
9,681 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines
7.4
Good
8,965 reviews
Alaska Airlines
8.0
Very good
9,681 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,681 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Knoxville to Idaho. 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 from for flights from Knoxville to Idaho?

    Knoxville McGhee Tyson (TYS), located 11.3 mi from the city center, is the airport you fly out of when you book flights from Knoxville to Idaho.

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

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $115. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from Knoxville to Idaho for a low price.

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

    When deciding which route to take from Knoxville to Idaho consider Knoxville McGhee Tyson - Boise Air Term. Gowen Fld, Knoxville McGhee Tyson - Jackson Hole or Knoxville McGhee Tyson - Spokane as they are the most popular.

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

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

  • How can I find direct flights from Knoxville to Idaho?

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

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

    Yes. Cheapflights offers flight deals from Knoxville to Idaho 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 Knoxville to Idaho?

    Currently, October is the cheapest month in which you can book a flight from Knoxville to Idaho (average of $314). Flying from Knoxville to Idaho in June is currently the most expensive (average of $436). 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

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Alternative routes for Knoxville to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Knoxville to Idaho

Discover the top 3 airlines that operate flights from Knoxville to Idaho. 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 enero 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$297Average$535FlexibilityNo cancel feeOn-time71%
DeltaCheapest$298Average$491FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$303Average$568FlexibilityNo cancel feeOn-time69%
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