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IDA - TYS

$637 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 7/1. 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
Wed 6/5
Wed 6/12

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 42,830,901 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

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
2:35 pm - 10:30 pmIDA-TYS
5h 55m1 stop
4:45 pm - 5:17 pmTYS-IDA
26h 32m1 stop
$637United Airlines
Find Deal
Mon, Jul 1 - Tue, Jul 9
1:43 pm - 12:24 amIDA-TYS
8h 41m1 stop
2:16 pm - 9:39 pmTYS-IDA
9h 23m1 stop
$646American Airlines
Find Deal
Mon, Jul 1 - Tue, Jul 9
1:43 pm - 12:24 amIDA-TYS
8h 41m1 stop
5:10 am - 1:06 pmTYS-IDA
9h 56m2 stops
$649American Airlines
Find Deal
Mon, Jul 1 - Tue, Jul 9
6:32 am - 7:00 pmIDA-TYS
10h 28m2 stops
5:10 am - 1:06 pmTYS-IDA
9h 56m2 stops
$654American Airlines
Find Deal
Mon, Jul 1 - Tue, Jul 9
5:58 pm - 10:30 pmIDA-TYS
26h 32m1 stop
4:45 pm - 9:08 pmTYS-IDA
6h 23m1 stop
$662United Airlines
Find Deal
Fri, Jul 26 - Sat, Aug 3
5:58 pm - 10:25 amIDA-TYS
14h 27m2 stops
4:45 pm - 9:08 pmTYS-IDA
6h 23m1 stop
$751United Airlines
Find Deal
Fri, Jul 26 - Sat, Aug 3
5:58 pm - 10:25 amIDA-TYS
14h 27m2 stops
9:25 am - 9:08 pmTYS-IDA
13h 43m2 stops
$844United 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

$637
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 $637 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 14713 reviews
7.1Entertainment
8.0Crew
7.2Comfort
6.6Food
7.6Boarding
Airline reviews

Great crew. We were delayed so that late passengers could get on the flight. Love the bedding in business class. Good food. Great experience.

10.0 ExcellentMitchell, May 2024CMH - PHL
Read more about American Airlines reviews

Great crew. We were delayed so that late passengers could get on the flight. Love the bedding in business class. Good food. Great experience.

The CX617 from HK to BKK was delayed more than 1.5 hours.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

All four American Airlines flights I took in last seven days were delayed. Caused me loads of problems, missed meetings, loss of time and money.

American cancelled our flight home. Zero option for hotel, alternative transportation and took 3 hours to find our bags so we could take a 3 hour UBER ride home on our dime. Never flying AA again.

They gave my seat away although it was a connecting flight with them and the flight was a bit delayed.

Flight was cancelled had to move to another gate late again no internet paid for the month and never can use it waste of money

Not being able to purchase my check in baggage online was a negative.

LATE LATE LATE!!! Plagued by late AA flights on this trip. Such a drag. This one was by far the worst.

WiFi connected but only let you go to the AA website, not even text messaging worked.

Idaho Falls - Knoxville Flights

Departure:

Idaho Falls (IDA)United States

Destination:

Knoxville (TYS)United States

Return flight deals:

Knoxville - Idaho Falls

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