TYS - IDA

$404 Find Cheap Flights from Knoxville to Idaho Falls - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$404
Typical prices: $579-$803
American Airlines
Mon 12/31Fri 1/5
TYS - IDA • 2 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
Insights
When to travel
December
Cheapest • 33% price drop
October
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Dallas/Fort Worth (DFW)
Cheapest • Avg $677 (round-trip)
Denver Intl (DEN)
Shortest trip • 6h 22m (one-way)
Insights
Insights
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Flight Deals

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

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

Recent round-trip flight deals from Knoxville to Idaho Falls

Thu, Dec 31 - Tue, Jan 5
American Airlines Logo
5:30 am - 5:20 pmTYS  Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field
13h 50m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl
American Airlines Logo
5:50 pm - 9:42 amIDA  Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson
13h 52m2 stops Phoenix Sky Harbor Intl Charlotte Douglas
$404American Airlines
Sat, Sep 5 - Sat, Sep 12
United Airlines Logo
9:00 am - 1:29 pmTYS  Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field
6h 29m1 stop Denver Intl
United Airlines Logo
7:00 am - 8:24 pmIDA  Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson
11h 24m2 stops Denver Intl Washington, D.C. Dulles Intl
$434United Airlines
Thu, Dec 31 - Tue, Jan 5
American Airlines Logo
2:55 pm - 9:46 pmTYS  Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field
8h 51m1 stop Dallas/Fort Worth
American Airlines Logo
5:50 pm - 9:42 amIDA  Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson
13h 52m2 stops Phoenix Sky Harbor Intl Charlotte Douglas
$444American Airlines
Sat, Sep 5 - Sat, Sep 12
United Airlines Logo
1:59 pm - 9:18 pmTYS  Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field
9h 19m2 stops Chicago O'Hare Intl Denver Intl
United Airlines Logo
10:35 am - 10:49 pmIDA  Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson
10h 14m2 stops Denver Intl Chicago O'Hare Intl
$449United Airlines
Tue, Jan 26 - Sat, Jan 30
United Airlines Logo
4:25 pm - 9:08 pmTYS  Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field
6h 43m1 stop Denver Intl
United Airlines Logo
2:35 pm - 10:20 pmIDA  Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson
5h 45m1 stop Denver Intl
$459United Airlines
Tue, Oct 13 - Sun, Oct 18
Delta Logo
10:29 am - 6:16 pmTYS  Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field
9h 47m2 stops Atlanta Hartsfield-Jackson Salt Lake City
Delta Logo
6:56 pm - 9:34 amIDA  Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson
12h 38m2 stops Salt Lake City Atlanta Hartsfield-Jackson
$569Delta
Tue, Oct 13 - Sun, Oct 18
American Airlines Logo
11:35 am - 9:42 pmTYS  Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field
12h 07m2 stops Philadelphia Dallas/Fort Worth
American Airlines Logo
1:50 pm - 11:59 pmIDA  Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson
8h 09m1 stop Chicago O'Hare Intl
$679American Airlines
Thu, Oct 1 - Sun, Oct 11
American Airlines Logo
8:15 pm - 1:28 pmTYS  Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field
19h 13m1 stop Chicago O'Hare Intl
American Airlines Logo
1:50 pm - 4:12 pmIDA  Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson
24h 22m1 stop Chicago O'Hare Intl
$690American Airlines
Thu, Oct 8 - Thu, Oct 15
Delta Logo
10:29 am - 10:10 pmTYS  Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field
13h 41m2 stops Atlanta Hartsfield-Jackson Salt Lake City
Delta Logo
6:00 am - 6:47 pmIDA  Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson
10h 47m2 stops Salt Lake City Atlanta Hartsfield-Jackson
$1,002Delta
Thu, Sep 17 - Thu, Sep 17
Delta Logo
5:40 am - 12:15 pmTYS  Knoxville McGhee Tyson-IDA Idaho Falls Fanning Field
8h 35m2 stops Atlanta Hartsfield-Jackson Salt Lake City
Delta Logo
6:57 pm - 9:29 amIDA  Idaho Falls Fanning Field-TYS Knoxville McGhee Tyson
12h 32m2 stops Salt Lake City Atlanta Hartsfield-Jackson
$5,954Delta
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 from Knoxville to Idaho Falls with more confidence.

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

Round-trip flights from Knoxville to Idaho Falls start at $404. Prices are below average for this route right now, with typical round-trip fares ranging from $579 to $803. The lowest price found in the past 5 days was $404 on American Airlines.

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

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

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Key details for Knoxville to Idaho Falls flights

Low season

February

Cheapest flight

$404
Most popular time to fly and prices are also 15% lower on average.
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

Your Knoxville to Idaho Falls flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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?

    Only Economy Class is available on flights from Knoxville to Idaho Falls.

  • 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) - 80% of one-stop connections
    • Dallas/Fort Worth (DFW) - 20% of one-stop connections
    Together, these airports account for 100% of one-stop bookings on this route.

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

    Yes. Being flexible with your travel dates can save you up to 60% on the Knoxville to Idaho Falls route. 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 0h 00m, covering 1,575 miles.

  • What are the earliest and latest flights from Knoxville to Idaho Falls?

    These are the earliest and latest flight times available from Knoxville to Idaho Falls:

    • Earliest: departs at 12:00 am and lands at 12:00 am
    • Latest: departs at 12:00 am and lands at 12:00 am.

    The flight takes about 0h 00m.

  • 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 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 22m, 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.

Your guide to booking Knoxville to Idaho Falls flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Wednesday departure instead of Sunday. On this route, Wednesday flights average $411 - about $602 less than Sunday (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.
    - Best Western Driftwood Inn
    - Hilton Garden Inn Idaho Falls
    - Hampton Inn Idaho Falls/Airport

Everything you need to know for your flight from Knoxville to Idaho Falls

Information on your arrival and departure airports

Knoxville (TYS)
Idaho Falls (IDA)