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IDA - TYS

$586 Find cheap flights from Idaho Falls to Knoxville

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Idaho Falls to Knoxville departing on 7/26. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Fri 7/12
Fri 7/19

Search hundreds of travel sites at once for deals on flights to Knoxville

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Idaho Falls to Knoxville, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Idaho Falls to Knoxville, as well as popular online travel agencies
In the last 7 days travelers have searched 44,148,666 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

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Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Idaho Falls to Knoxville (IDA-TYS)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Idaho Falls to Knoxville that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
5:59 pm - 10:30 pmIDA-TYS
26h 31m1 stop
4:45 pm - 5:18 pmTYS-IDA
26h 33m1 stop
$586United Airlines
Find Deal
Fri, Jul 26 - Sat, Aug 3
7:05 am - 3:43 pmIDA-TYS
6h 38m1 stop
7:00 am - 9:08 pmTYS-IDA
16h 08m2 stops
$598United Airlines
Find Deal
Mon, Jul 1 - Tue, Jul 9
10:45 am - 10:42 pmIDA-TYS
9h 57m2 stops
7:00 am - 9:08 pmTYS-IDA
16h 08m2 stops
$603United Airlines
Find Deal
Mon, Jul 1 - Tue, Jul 9
10:45 am - 10:42 pmIDA-TYS
9h 57m2 stops
7:00 am - 9:08 pmTYS-IDA
16h 08m2 stops
$609United Airlines
Find Deal
Mon, Jul 1 - Tue, Jul 9
7:05 am - 3:43 pmIDA-TYS
6h 38m1 stop
4:45 pm - 5:18 pmTYS-IDA
26h 33m1 stop
$623United Airlines
Find Deal
Mon, Jul 1 - Tue, Jul 9
10:45 am - 10:42 pmIDA-TYS
9h 57m2 stops
4:45 pm - 5:18 pmTYS-IDA
26h 33m1 stop
$634United Airlines
Find Deal
Mon, Jul 1 - Tue, Jul 9
5:59 pm - 10:30 pmIDA-TYS
26h 31m1 stop
5:20 pm - 9:35 amTYS-IDA
18h 15m2 stops
$686United Airlines
Find Deal
Fri, Jul 26 - Sat, Aug 3
7:05 am - 3:43 pmIDA-TYS
6h 38m1 stop
9:00 am - 5:18 pmTYS-IDA
10h 18m1 stop
$747United Airlines
Find Deal
Mon, Jul 1 - Mon, Jul 8
1:36 pm - 11:59 pmIDA-TYS
8h 23m1 stop
2:16 pm - 9:39 pmTYS-IDA
9h 23m1 stop
$756American Airlines
Find Deal
Fri, Jul 26 - Sat, Aug 3
1:36 pm - 11:59 pmIDA-TYS
8h 23m1 stop
5:10 am - 1:06 pmTYS-IDA
9h 56m2 stops
$811American Airlines
Find Deal
Fri, Jul 26 - Sat, Aug 3

Flights from Idaho Falls to Knoxville - Travel Insights & Trends

Get data-powered insights and trends into flights from Idaho Falls to Knoxville to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Idaho Falls to Knoxville?

The average price of all flights from Idaho Falls to Knoxville clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Knoxville on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Wednesday is the most expensive day to fly from Idaho Falls to Knoxville. For your return ticket, we recommend flying on a Monday and avoiding Saturdays for the best deals.

What is the cheapest month to fly from Idaho Falls to Knoxville?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Idaho Falls to Knoxville, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Idaho Falls to Knoxville is September, where tickets cost $473 on average. On the other hand, the most expensive months are December and February, where the average cost of tickets is $1,235 and $949 respectively.

Good to know

Low season

March

High season

July

Cheapest flight

$586
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Idaho Falls to Knoxville

When to book flights from Idaho Falls to Knoxville

Are your dates flexible? Find out the best times to travel from Idaho Falls to Knoxville based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Idaho Falls to Knoxville

  • What is the cheapest flight from Idaho Falls to Knoxville?

    In the last 3 days, the lowest price for a flight from Idaho Falls to Knoxville was $586 for a round-trip ticket.

  • Do I need a passport to fly between Idaho Falls and Knoxville?

    No, a passport isn't needed to fly from Idaho Falls to Knoxville. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Idaho Falls to Knoxville?

    On your way to Knoxville, you’ll fly out from Idaho Falls Fanning Field. You’ll be landing at Knoxville McGhee Tyson.

  • Which aircraft models fly most regularly from Idaho Falls to Knoxville?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Idaho Falls to Knoxville?

    Star Alliance, and oneworld are the airline alliances operating flights between Idaho Falls and Knoxville, with oneworld being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Idaho Falls to Knoxville?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Idaho Falls to Knoxville.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Idaho Falls to Knoxville?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Knoxville from Idaho Falls is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Idaho Falls to Knoxville?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Knoxville with an airline and back to Idaho Falls with another airline. Booking your flights between Idaho Falls and TYS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Idaho Falls to Knoxville?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Knoxville from Idaho Falls up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airline flying from Idaho Falls to Knoxville

 
See real verified KAYAK customer reviews for airlines flying from Idaho Falls to Knoxville. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Idaho Falls to Knoxville? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
American AirlinesOverall score based on 10000 reviews
8.0Crew
7.2Comfort
7.6Boarding
6.6Food
7.1Entertainment
Airline reviews

Paid for premium economy had no tv the whole time the crew tried to reset/reboot but would not work they said they would put a trouble ticket in for it. We had 3 seats my tv was the only one that didn't work. They cancelled our flight re worked us on another that left us at airport over night on the floor I have a ten year old and a 78 diabetic mother which also had shingles and suffers from nerve pain in legs and back. Requested wheelchair service at all airports after the re route NO wheelchair service was there to help. WORST experience we have ever had. Went to American airlines assistance it was closed. I AM FURIOUS!!! I expect some sort of compensation from this traumatic experience and no need for flying points we don't plan on using American airlines again!!!!

2.0 MediocreSherri, Jun 2024EWN - CLT
Read more about American Airlines reviews

Paid for premium economy had no tv the whole time the crew tried to reset/reboot but would not work they said they would put a trouble ticket in for it. We had 3 seats my tv was the only one that didn't work. They cancelled our flight re worked us on another that left us at airport over night on the floor I have a ten year old and a 78 diabetic mother which also had shingles and suffers from nerve pain in legs and back. Requested wheelchair service at all airports after the re route NO wheelchair service was there to help. WORST experience we have ever had. Went to American airlines assistance it was closed. I AM FURIOUS!!! I expect some sort of compensation from this traumatic experience and no need for flying points we don't plan on using American airlines again!!!!

This is by far the worst experience I have had with American Airlines. The start of this trip was a complete disaster. I purposely planned my trip so that I would weather any delays so that I could make very important meeting at the Pentagon. My flight was cancelled because of maintenance and I was put on the first flight the next day but I was late to the meeting. After a long week at the Pentagon I just wanted to go home and my flight home which was early in the day was delayed. Eventually the flight was delayed until the next day. I was not authorized a hotel room because DCA was my point of origin. So I paid for a hotel out of pocket. The flight this morning was boarded then deplaned because the aircraft was hot. The flow of information was not happening in DCA and made it worse when the news was bad. I am going to take a break from American for my next few military flights. Hopefully whatever has been going on with American Airlines will be resolved.

We had a 2 hour delay. The seats were smaller than most other airlines. The person in front of us wanted to lay back and we had to stop her because she was pressing against my girlfriend’s legs. We had to ask her to sit up and not lay back due to the lack of room.

Everything was fine once we actually got on our flight. It was more then annoying they canceled (delayed) our flight. We lost out on a day of our trip along with money on our stay. Plus we had to book another hotel. So expensive.

This flight was canceled and delayed several times without explanation. The plane was freezing cold and no wifi for messaging. Getting off the plane was terribly unorganized and felt like it took forever….

The flight was delayed several times without explanation. The seats were terribly uncomfortable and wifi isn’t included. All these make for a less than ideal flight.

The flights was delayed by hours and it was the firmest landing I have experienced in my life. My back is still sore.

Internet service was erratic. Crew service was poor and slow. My luggage on this non-stop flight was lost and not recovered

Terrible. I didn’t fly and I had an important meeting the next day.

Equipment swap led to 2+ hour delay on international flight. And to top it off, boarding took forever.

Book cheap flights from Idaho Falls to Knoxville

One-way flight deals

multi-stopMultiple Airlines
1575 miIDA-TYS

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Idaho Falls - Knoxville Flights

Departure:

Idaho Falls (IDA)United States

Destination:

Knoxville (TYS)United States

Return flight deals:

Knoxville - Idaho Falls

Cabin classes: