Cheap flights from Knoxville to Idaho Falls from $439
This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to Idaho Falls departing on 5/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Knoxville to Idaho Falls
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Idaho Falls?
If you aren’t able to travel to Idaho Falls during the month of January, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $443.
What is the cheapest day to depart on your flight to Idaho Falls?
Our data shows that Friday is the least expensive day to fly to Idaho Falls. Tickets to fly out on this day can be as low as $494. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Idaho Falls on Sunday is $1,306.
When to book flights from Knoxville to Idaho Falls
Cheap Knoxville to Idaho Falls (TYS to IDA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Knoxville to Idaho Falls
How far is Knoxville McGhee Tyson to Idaho Falls Fanning Field by plane?
The straight-line distance from Knoxville McGhee Tyson to Idaho Falls Fanning Field is 1571.6 mi. A reasonable flight in good conditions will take 8h 16m.
When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Idaho Falls Fanning Field Airport?
Prices for flights from Knoxville McGhee Tyson Airport to Idaho Falls Fanning Field Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Idaho Falls Fanning Field Airport?
As of May 2025, there are 2 operators available to choose from for flights from Knoxville McGhee Tyson Airport to Idaho Falls Fanning Field Airport.
How old do you have to be to fly from Knoxville McGhee Tyson Airport to Idaho Falls Fanning Field Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to Idaho Falls Fanning Field Airport.
What documentation or ID do you need to fly to Idaho Falls Fanning Field Airport?
The required travel and health documents for your Idaho Falls Fanning Field Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Idaho Falls Fanning Field Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Knoxville to Idaho Falls?
Based on momondo bookings for flights between Knoxville and Idaho Falls, the leading airline is American Airlines, making up 52% of the total bookings. Other popular airlines include United Airlines with 48%.
Best airlines flying from Knoxville to Idaho Falls
Compare and see reviews for airlines that fly from Knoxville to Idaho Falls with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $298 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $443 | Free Cancellation | Rating 7.4 8,696 reviews |
Traveling to a place near Idaho Falls?
Book flights to Idaho Falls if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Knoxville to Idaho Falls?
Finding the right flight to Idaho Falls from Knoxville is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Idaho Falls quick and easy, saving you time and money.
Can I find flights from Knoxville to Idaho Falls with flexible booking policies on momondo?
Flights from Knoxville to Idaho Falls with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Knoxville to Idaho Falls?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Idaho Falls from Knoxville.
I’m not ready to book a flight from Knoxville to Idaho Falls right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Idaho Falls, momondo offers a useful price alert feature which will track prices for flights to Idaho Falls from Knoxville and alert you when they change.