Which airports can I use when flying from Knoxville to Idaho Falls?

Flights from Knoxville to Idaho Falls usually depart from Knoxville McGhee Tyson (TYS) and arrive at Idaho Falls Fanning Field (IDA).

What cabin classes can I book on flights from Knoxville to Idaho Falls?

Two cabin classes are available on flights from Knoxville to Idaho Falls: • Economy Class • First Class

Which airports do connecting flights from Knoxville to Idaho Falls pass through?

Connecting flights from Knoxville to Idaho Falls most commonly pass through: • Denver Intl (DEN) - 82% of one-stop connections • Dallas/Fort Worth (DFW) - 18% of one-stop connections

Can I save money by using flexible dates for flights from Knoxville to Idaho Falls?

Yes. Flexible dates can save you up to 60% on flights from Knoxville to Idaho Falls. Wednesday is the cheapest departure day at $411 round-trip on average, while Sunday is the most expensive at $1,013, a difference of $602. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

How long is a flight from Knoxville to Idaho Falls?

A nonstop flight from Knoxville to Idaho Falls takes 00m, covering 1,575 miles.

Do I need a passport to fly from Knoxville to Idaho Falls?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Have flight prices from Knoxville to Idaho Falls changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $379 to $1,831. That means the highest observed fare was about 5x higher than the lowest one.

How are flight prices from Knoxville to Idaho Falls looking right now?

One-way fares from Knoxville to Idaho Falls are currently in line with typical prices for this route. Average one-way fares are about $379.

How much time can I save by choosing a different layover airport from Knoxville to Idaho Falls?

Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 6h 19m, compared with 8h 09m via Dallas/Fort Worth (DFW).

What is the time difference between Knoxville and Idaho Falls?

Idaho Falls is 2 hours behind Knoxville (Mountain Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Idaho Falls Fanning Field Airport (IDA)?

Idaho Falls Fanning Field Airport (IDA) hosts 5 major car rental companies, with daily rates starting from around $34 for economy cars. Top options include: • Alamo • Hertz • Enterprise Rent-A-Car • Budget • National

How much should I expect to pay for a Knoxville to Idaho Falls flight?

Round-trip flights from Knoxville to Idaho Falls range from $579 to $803, with an average of $658 over the past 12 months. Anything below $579 counts as a good deal.

How much is a round-trip flight from Knoxville to Idaho Falls?

Round-trip flights from Knoxville to Idaho Falls typically range from $579 to $803. The lowest price found in the past 5 days was $379, on United Airlines.

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

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Knoxville to Idaho Falls. It’s 38% cheaper than the average day, while Sunday is the most expensive, with prices 53% higher.

Which airline is the cheapest to fly from Knoxville to Idaho Falls?

United Airlines ($379) and Delta ($460) are the cheapest airlines to fly round-trip from Knoxville to Idaho Falls according to KAYAK data over the last 5 days.

What’s the most popular layover airport when flying from Knoxville to Idaho Falls?

Denver Intl (DEN) is the most popular layover for the Knoxville to Idaho Falls route. 82% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via DEN.

What is the cheapest layover airport when flying from Knoxville to Idaho Falls?

Flights via Dallas/Fort Worth (DFW) offer the most affordable fares, with an average round-trip price of $677. Based on KAYAK data over the past 3 months.

When flying from Knoxville to Idaho Falls which airport offers the shortest layover?

Denver Intl (DEN) had the shortest average connection time for Knoxville to Idaho Falls layovers at 3h 43m over the past 3 months.

$374 CHEAP FLIGHTS from Knoxville to Idaho Falls (TYS - IDA)

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

$379

Typical prices: $579-$803

United Airlines

Sun 10/21Fri 10/26

TYS - IDA • 1 stop

Cheapest one-way

$374

Typical prices: $296-$464

Multiple Airlines

Sat 12/15

TYS - IDA • 3 stops

Nonstop flights

Not available

There are currently no direct flights between Knoxville and Idaho Falls. You'll need to take a connecting flight to reach the destination.

Insights

When to travel

December

Cheapest • 33% price drop

October

Most popular

Good to know

Top layover airports

Dallas/Fort Worth (DFW)

Cheapest • Avg $677 (round-trip)

Denver Intl (DEN)

Shortest trip • 6h 19m (one-way)

Insights

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We hope you love your trip to Idaho Falls!

Flight Deals

Cheap Flights from Knoxville to Idaho Falls (TYS-IDA)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Knoxville to Idaho Falls

Wed, Oct 21 - Mon, Oct 26

9:00 am - 3:21 pmTYS Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field

8h 21m1 stop Denver Intl

2:35 pm - 10:32 pmIDA Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson

5h 57m1 stop Denver Intl

$379United Airlines

Sat, Oct 24 - Mon, Oct 26

9:00 am - 3:24 pmTYS Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field

8h 24m1 stop Denver Intl

2:35 pm - 10:32 pmIDA Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson

5h 57m1 stop Denver Intl

$379United Airlines

Sat, Oct 24 - Mon, Oct 26

6:00 am - 3:24 pmTYS Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field

11h 24m2 stops Chicago O'Hare Intl Denver Intl

2:35 pm - 10:32 pmIDA Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson

5h 57m1 stop Denver Intl

$384United Airlines

Sat, Oct 17 - Sat, Oct 24

6:00 am - 3:24 pmTYS Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field

11h 24m2 stops Chicago O'Hare Intl Denver Intl

2:28 pm - 10:14 pmIDA Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson

5h 46m1 stop Denver Intl

$419United Airlines

Wed, Oct 21 - Sat, Oct 24

7:15 am - 3:21 pmTYS Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field

10h 06m2 stops Houston George Bush Intcntl Denver Intl

2:28 pm - 10:14 pmIDA Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson

5h 46m1 stop Denver Intl

$419United Airlines

Wed, Oct 21 - Mon, Oct 26

2:38 pm - 10:10 pmTYS Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field

9h 32m2 stops Atlanta Hartsfield-Jackson Salt Lake City

6:56 pm - 9:34 amIDA Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson

12h 38m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$460Delta

Sun, Nov 1 - Fri, Nov 6

9:29 pm - 12:36 pmTYS Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field

17h 07m1 stop Las Vegas Harry Reid Intl

8:24 pm - 1:19 pmIDA Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson

38h 55m2 stops Las Vegas Harry Reid Intl Denver Intl

$485Multiple Airlines

Wed, Oct 21 - Mon, Oct 26

5:45 am - 1:24 pmTYS Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field

9h 39m2 stops Washington, D.C. Dulles Intl Denver Intl

2:35 pm - 10:32 pmIDA Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson

5h 57m1 stop Denver Intl

$491United Airlines

Sat, Oct 17 - Sat, Oct 24

9:00 am - 3:24 pmTYS Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field

8h 24m1 stop Denver Intl

2:28 pm - 10:14 pmIDA Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson

5h 46m1 stop Denver Intl

$494United Airlines

Wed, Oct 21 - Mon, Oct 26

9:00 am - 3:21 pmTYS Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field

8h 21m1 stop Denver Intl

2:35 pm - 10:32 pmIDA Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson

5h 57m1 stop Denver Intl

$499United Airlines

Recent last minute flight deals from Knoxville to Idaho Falls

Sat, Oct 3 - Fri, Oct 9

1:47 pm - 9:12 amTYS Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field

21h 25m1 stop Phoenix Sky Harbor Intl

10:49 pm - 5:21 pmIDA Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson

40h 32m2 stops Las Vegas Harry Reid Intl Washington, D.C. Dulles Intl

$798Multiple Airlines

Sat, Oct 3 - Mon, Oct 5

1:55 pm - 8:54 pmTYS Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field

8h 59m2 stops Chicago O'Hare Intl Denver Intl

2:28 pm - 10:14 pmIDA Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson

5h 46m1 stop Denver Intl

$1,021United Airlines

Sat, Oct 3 - Wed, Oct 7

12:11 pm - 9:20 pmTYS Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field

11h 09m2 stops Washington, D.C. Reagan-National Dallas/Fort Worth

6:37 am - 4:36 pmIDA Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson

7h 59m1 stop Dallas/Fort Worth

$1,096American Airlines

Sat, Oct 3 - Mon, Oct 5

12:11 pm - 9:20 pmTYS Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field

11h 09m2 stops Washington, D.C. Reagan-National Dallas/Fort Worth

6:37 am - 10:59 pmIDA Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson

14h 22m2 stops Dallas/Fort Worth Miami

$1,120American Airlines

Sat, Oct 3 - Wed, Oct 7

12:11 pm - 9:20 pmTYS Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field

11h 09m2 stops Washington, D.C. Reagan-National Dallas/Fort Worth

6:37 am - 10:59 pmIDA Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson

14h 22m2 stops Dallas/Fort Worth Miami

$1,149American Airlines

Sat, Oct 3 - Mon, Oct 5

4:53 pm - 8:54 pmTYS Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field

6h 01m1 stop Denver Intl

2:28 pm - 10:14 pmIDA Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson

5h 46m1 stop Denver Intl

$1,219United Airlines

Sat, Oct 3 - Fri, Oct 9

8:14 pm - 1:28 pmTYS Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field

19h 14m1 stop Chicago O'Hare Intl

1:50 pm - 11:05 amIDA Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson

19h 15m1 stop Chicago O'Hare Intl

$1,287American Airlines

Sat, Oct 3 - Wed, Oct 7

8:00 am - 1:28 pmTYS Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field

7h 28m1 stop Chicago O'Hare Intl

6:37 am - 4:36 pmIDA Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson

7h 59m1 stop Dallas/Fort Worth

$1,303American Airlines

Sat, Oct 3 - Fri, Oct 9

1:55 pm - 8:54 pmTYS Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field

8h 59m2 stops Chicago O'Hare Intl Denver Intl

10:35 am - 9:55 pmIDA Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson

9h 20m2 stops Denver Intl Houston George Bush Intcntl

$1,579United Airlines

Booking Insights

Price, demand and travel trends for Knoxville to Idaho Falls flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Knoxville to Idaho Falls? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Knoxville to Idaho Falls departing in october.
What's the cheapest day of the week to fly from Knoxville to Idaho Falls?: Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Knoxville to Idaho Falls. It’s 38% cheaper than the average day, while Sunday is the most expensive, with prices 53% higher.

Find deals

Low season	February
High season	October
Cheapest flight	$374

One-way flight from Knoxville to Idaho Falls

When to book flights from Knoxville to Idaho Falls

Are your dates flexible? Find out the best times to travel from Knoxville to Idaho Falls 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.

What cabin classes can I book on flights from Knoxville to Idaho Falls?
Two cabin classes are available on flights from Knoxville to Idaho Falls:

• Economy Class
• First Class
How long is a flight from Knoxville to Idaho Falls?
A nonstop flight from Knoxville to Idaho Falls takes 00m, covering 1,575 miles.
Do I need a passport to fly from Knoxville to Idaho Falls?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.
How much should I expect to pay for a Knoxville to Idaho Falls flight?
Round-trip flights from Knoxville to Idaho Falls range from $579 to $803, with an average of $658 over the past 12 months. Anything below $579 counts as a good deal.
Have flight prices from Knoxville to Idaho Falls changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $379 to $1,831. That means the highest observed fare was about 5x higher than the lowest one.
How are flight prices from Knoxville to Idaho Falls looking right now?
One-way fares from Knoxville to Idaho Falls are currently in line with typical prices for this route. Average one-way fares are about $379.
What car rental options are available at Idaho Falls Fanning Field Airport (IDA)?
Idaho Falls Fanning Field Airport (IDA) hosts 5 major car rental companies, with daily rates starting from around $34 for economy cars. Top options include:

• Alamo
• Hertz
• Enterprise Rent-A-Car
• Budget
• National
Which airports can I use when flying from Knoxville to Idaho Falls?
Flights from Knoxville to Idaho Falls usually depart from Knoxville McGhee Tyson (TYS) and arrive at Idaho Falls Fanning Field (IDA).
Which airports do connecting flights from Knoxville to Idaho Falls pass through?
Connecting flights from Knoxville to Idaho Falls most commonly pass through:

• Denver Intl (DEN) - 82% of one-stop connections
• Dallas/Fort Worth (DFW) - 18% of one-stop connections
Can I save money by using flexible dates for flights from Knoxville to Idaho Falls?
Yes. Flexible dates can save you up to 60% on flights from Knoxville to Idaho Falls. Wednesday is the cheapest departure day at $411 round-trip on average, while Sunday is the most expensive at $1,013, a difference of $602.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
How much time can I save by choosing a different layover airport from Knoxville to Idaho Falls?
Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 6h 19m, compared with 8h 09m via Dallas/Fort Worth (DFW).
What is the time difference between Knoxville and Idaho Falls?
Idaho Falls is 2 hours behind Knoxville (Mountain Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

If your dates are flexible, aim for a Wednesday departure and avoid flying on Sunday. On this route, Wednesday flights average $411, about $602 less than Sunday fares (59% savings) based on the last 12 months.
If you can choose when to travel, plan your Knoxville to Idaho Falls trip for December. Fares historically average $443 round-trip in that month - typically $1,155 less than the most expensive month, which is May (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to Idaho Falls Fanning Field Airport.

• Tru by Hilton Idaho Falls
• Quality Inn Idaho Falls
• Comfort Suites Idaho Falls

More options for your flight from Knoxville to Idaho Falls

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TYS - IDA

$374 Find Cheap Flights from Knoxville to Idaho Falls - Compare and Save

Everything you should know

Cheap Flights from Knoxville to Idaho Falls (TYS-IDA)

Recent round-trip flight deals from Knoxville to Idaho Falls

Recent one-way flight deals from Knoxville to Idaho Falls

Recent last minute flight deals from Knoxville to Idaho Falls

Price, demand and travel trends for Knoxville to Idaho Falls flights

How much is a round-trip flight from Knoxville to Idaho Falls?

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

Which airline is the cheapest to fly from Knoxville to Idaho Falls?

What’s the most popular layover airport when flying from Knoxville to Idaho Falls?

What is the cheapest layover airport when flying from Knoxville to Idaho Falls?

When flying from Knoxville to Idaho Falls which airport offers the shortest layover?

Key details for Knoxville to Idaho Falls flights

Low season

High season

Cheapest flight

When to book flights from Knoxville to Idaho Falls

Your Knoxville to Idaho Falls flight questions, answered

Your guide to booking Knoxville to Idaho Falls flights

More options for your flight from Knoxville to Idaho Falls

Complete your trip to Idaho Falls with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Knoxville to Idaho Falls

Find direct flights to and from Knoxville and Idaho Falls

Flights from domestic origins to Idaho Falls

Flights to other popular destinations

Find deals for your return flight