HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Knoxville to Idaho Falls (TYS - IDA) from $529

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/27. 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.
TYS — IDA
Apr 30 — May 71
From?
To?
Tue 4/30
Tue 5/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Cheap flight deals from Knoxville to Idaho Falls

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Idaho Falls (IDA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 25, 2024.

Popular in

May

Cheapest in

December

Average price

$794

Round-trip from

$397
High demand for flights, 32% potential price rise
Search Deals
Best time to find cheap flights, 36% potential price drop
Search Deals
Average for round-trip flights in April 2024
Search Deals
From Knoxville McGhee Tyson to Idaho Falls Fanning Field
Search Deals

What is the cheapest day to fly round-trip from Knoxville to Idaho Falls?

Flying to your destination on a Friday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Idaho Falls. Check prices with Cheapflights to find a great deal for your trip.

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

Due to multiple factors, expect to potentially pay more when booking in May. For low rates, December can be a great choice for travel to Idaho Falls. Flights to Idaho Falls from Knoxville in December are about $842 on average during December, but can be found for as low as $540.

When is the cheapest time to fly from Knoxville to Idaho Falls (TYS - IDA)?

One of the essential ways to save on airfare from Knoxville to Idaho Falls is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 22% on airfare.

Cheap United Airlines flights from Knoxville to Idaho Falls

Explore cheap flight options specifically provided by United Airlines for the route between Knoxville and Idaho Falls. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.
Check out some of the cheapest United Airlines flights we've come across from Knoxville to Idaho Falls. Deals update often to give you more flight options matching your criteria
Fri 8/304:48 pmTYS - IDA
1 stop19h 06mUnited Airlines
Tue 9/35:57 pmIDA - TYS
1 stop26h 29mUnited Airlines
Deal found 4/25$610
Fri 8/303:30 pmTYS - IDA
2 stops20h 24mUnited Airlines
Tue 9/35:57 pmIDA - TYS
2 stops17h 41mUnited Airlines
Deal found 4/25$696
Thu 5/168:52 amTYS - IDA
1 stop26h 51mUnited Airlines
Sat 5/252:30 pmIDA - TYS
1 stop6h 00mUnited Airlines
Deal found 4/25$698
Thu 5/167:00 amTYS - IDA
2 stops12h 15mUnited Airlines
Sat 5/252:30 pmIDA - TYS
1 stop6h 00mUnited Airlines
Deal found 4/25$702
Thu 5/167:00 amTYS - IDA
2 stops12h 15mUnited Airlines
Sat 5/257:10 amIDA - TYS
2 stops14h 18mUnited Airlines
Deal found 4/25$781
Mon 7/157:10 pmTYS - IDA
2 stops24h 07mUnited Airlines
Wed 7/175:58 pmIDA - TYS
2 stops18h 42mUnited Airlines
Deal found 4/25$940
Fri 8/307:05 pmTYS - IDA
2 stops24h 09mUnited Airlines
Wed 9/45:55 pmIDA - TYS
1 stop26h 31mUnited Airlines
Deal found 4/25$1,176
Fri 8/307:05 pmTYS - IDA
2 stops24h 09mUnited Airlines
Wed 9/45:55 pmIDA - TYS
2 stops22h 28mUnited Airlines
Deal found 4/25$1,316

Cheap American Airlines flights from Knoxville to Idaho Falls

Explore cheap flight options specifically provided by American Airlines for the route between Knoxville and Idaho Falls. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.
Have a look at some of the cheapest available American Airlines flights departing from Knoxville and landing in Idaho Falls. Make sure to examine the flight information before completing your reservation.
Mon 7/155:50 amTYS - IDA
1 stop9h 16mAmerican Airlines
Wed 7/171:36 pmIDA - TYS
1 stop8h 23mAmerican Airlines
Deal found 4/25$603
Fri 8/308:02 amTYS - IDA
1 stop6h 34mAmerican Airlines
Tue 9/37:34 amIDA - TYS
2 stops13h 43mAmerican Airlines
Deal found 4/25$641
Mon 7/155:50 amTYS - IDA
1 stop9h 16mAmerican Airlines
Wed 7/171:36 pmIDA - TYS
2 stops19h 41mAmerican Airlines
Deal found 4/25$786
Mon 7/155:50 amTYS - IDA
1 stop9h 16mAmerican Airlines
Sat 7/201:36 pmIDA - TYS
1 stop8h 36mAmerican Airlines
Deal found 4/25$863
Mon 7/155:50 amTYS - IDA
1 stop9h 16mAmerican Airlines
Sat 7/206:30 amIDA - TYS
2 stops10h 58mAmerican Airlines
Deal found 4/25$871
Mon 7/154:49 pmTYS - IDA
2 stops22h 17mAmerican Airlines
Sat 7/206:30 amIDA - TYS
2 stops10h 58mAmerican Airlines
Deal found 4/25$1,088
Fri 8/306:21 amTYS - IDA
1 stop8h 15mAmerican Airlines
Wed 9/41:43 pmIDA - TYS
1 stop8h 00mAmerican Airlines
Deal found 4/25$1,165

Cheap Knoxville to Idaho Falls flights in April & May 2024

Find cheap flight options from Knoxville to Idaho Falls specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,068,701 searches. Prices were last updated on April 25, 2024.
Scroll through some of the best deals on flights from Knoxville to Idaho Falls in 2024. For more flight deals, be sure to check back very soon.
Sat 4/274:48 pmTYS - IDA
1 stop6h 19mUnited Airlines
Sun 4/282:30 pmIDA - TYS
1 stop6h 20mUnited Airlines
Deal found 4/25$529
Sat 4/275:30 amTYS - IDA
2 stops9h 20mDelta
Sun 4/287:00 pmIDA - TYS
2 stops12h 28mDelta
Deal found 4/25$531
Thu 5/168:52 amTYS - IDA
1 stop26h 51mUnited Airlines
Sat 5/252:30 pmIDA - TYS
1 stop6h 00mUnited Airlines
Deal found 4/25$698
Thu 5/167:00 amTYS - IDA
2 stops12h 15mUnited Airlines
Sat 5/252:30 pmIDA - TYS
1 stop6h 00mUnited Airlines
Deal found 4/25$702
Thu 5/167:00 amTYS - IDA
2 stops12h 15mUnited Airlines
Sat 5/257:10 amIDA - TYS
2 stops14h 18mUnited Airlines
Deal found 4/25$781
Sat 4/274:48 pmTYS - IDA
1 stop6h 19mUnited Airlines
Sun 4/287:00 amIDA - TYS
2 stops14h 05mUnited Airlines
Deal found 4/25$785
Fri 4/269:03 amTYS - IDA
2 stops14h 34mAmerican Airlines
Fri 5/107:00 amIDA - TYS
1 stop8h 41mAmerican Airlines
Deal found 4/25$811
Fri 4/269:03 amTYS - IDA
2 stops14h 34mAmerican Airlines
Fri 5/1012:05 pmIDA - TYS
2 stops9h 46mAmerican Airlines
Deal found 4/25$815
Fri 4/264:48 pmTYS - IDA
1 stop26h 29mUnited Airlines
Fri 5/105:56 pmIDA - TYS
1 stop26h 48mUnited Airlines
Deal found 4/25$851

Knoxville to Idaho Falls 2024 flight deals

Discover exclusive flight deals for travel between Knoxville and Idaho Falls in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.
Scroll through some of the best deals on flights from Knoxville to Idaho Falls in 2024. For more flight deals, be sure to check back very soon.
Sat 4/274:48 pmTYS - IDA
1 stop6h 19mUnited Airlines
Sun 4/282:30 pmIDA - TYS
1 stop6h 20mUnited Airlines
Deal found 4/25$529
Sat 4/275:30 amTYS - IDA
2 stops9h 20mDelta
Sun 4/287:00 pmIDA - TYS
2 stops12h 28mDelta
Deal found 4/25$531
Mon 7/155:50 amTYS - IDA
1 stop9h 16mAmerican Airlines
Wed 7/171:36 pmIDA - TYS
1 stop8h 23mAmerican Airlines
Deal found 4/25$603
Thu 5/168:52 amTYS - IDA
1 stop26h 51mUnited Airlines
Sat 5/252:30 pmIDA - TYS
1 stop6h 00mUnited Airlines
Deal found 4/25$698
Thu 5/167:00 amTYS - IDA
2 stops12h 15mUnited Airlines
Sat 5/252:30 pmIDA - TYS
1 stop6h 00mUnited Airlines
Deal found 4/25$702
Thu 5/167:00 amTYS - IDA
2 stops12h 15mUnited Airlines
Sat 5/257:10 amIDA - TYS
2 stops14h 18mUnited Airlines
Deal found 4/25$781
Sat 4/274:48 pmTYS - IDA
1 stop6h 19mUnited Airlines
Sun 4/287:00 amIDA - TYS
2 stops14h 05mUnited Airlines
Deal found 4/25$785
Mon 7/155:50 amTYS - IDA
1 stop9h 16mAmerican Airlines
Wed 7/171:36 pmIDA - TYS
2 stops19h 41mAmerican Airlines
Deal found 4/25$786
Fri 4/269:03 amTYS - IDA
2 stops14h 34mAmerican Airlines
Fri 5/107:00 amIDA - TYS
1 stop8h 41mAmerican Airlines
Deal found 4/25$811

Find flights from Knoxville to Idaho Falls within your budget

Customize your flight search to find flights from Knoxville to Idaho Falls that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$603 - $863

Route

Depart

Return

Price

Knoxville McGhee TysonIdaho Falls Fanning Field

TYS - IDA

TYSIDA

Knoxville McGhee Tyson

Mon 7/15

1 stop9h 16m

Idaho Falls Fanning Field

Wed 7/17

1 stop8h 23m

$603

Knoxville McGhee TysonIdaho Falls Fanning Field

TYS - IDA

TYSIDA

Knoxville McGhee Tyson

Fri 8/30

1 stop19h 06m

Idaho Falls Fanning Field

Tue 9/3

1 stop26h 29m

$610

Knoxville McGhee TysonIdaho Falls Fanning Field

TYS - IDA

TYSIDA

Knoxville McGhee Tyson

Fri 8/30

1 stop6h 34m

Idaho Falls Fanning Field

Tue 9/3

2 stops13h 43m

$641

Knoxville McGhee TysonIdaho Falls Fanning Field

TYS - IDA

TYSIDA

Knoxville McGhee Tyson

Fri 8/30

2 stops20h 24m

Idaho Falls Fanning Field

Tue 9/3

2 stops17h 41m

$696

Knoxville McGhee TysonIdaho Falls Fanning Field

TYS - IDA

TYSIDA

Knoxville McGhee Tyson

Thu 5/16

1 stop26h 51m

Idaho Falls Fanning Field

Sat 5/25

1 stop6h 00m

$698

Knoxville McGhee TysonIdaho Falls Fanning Field

TYS - IDA

TYSIDA

Knoxville McGhee Tyson

Thu 5/16

2 stops12h 15m

Idaho Falls Fanning Field

Sat 5/25

1 stop6h 00m

$702

Knoxville McGhee TysonIdaho Falls Fanning Field

TYS - IDA

TYSIDA

Knoxville McGhee Tyson

Thu 5/16

2 stops12h 15m

Idaho Falls Fanning Field

Sat 5/25

2 stops14h 18m

$781

Knoxville McGhee TysonIdaho Falls Fanning Field

TYS - IDA

TYSIDA

Knoxville McGhee Tyson

Mon 7/15

1 stop9h 16m

Idaho Falls Fanning Field

Wed 7/17

2 stops19h 41m

$786

Knoxville McGhee TysonIdaho Falls Fanning Field

TYS - IDA

TYSIDA

Knoxville McGhee Tyson

Mon 7/15

1 stop9h 16m

Idaho Falls Fanning Field

Sat 7/20

1 stop8h 36m

$863

Flights are sorted by cheapest first

Deals found on 4/25

When is the cheapest time to fly from Knoxville to Idaho Falls?

Use this chart to determine the cheapest time to fly round-trip from Knoxville to Idaho Falls. Price data was last updated on April 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Knoxville to Idaho Falls flight should consider departing on Friday mornings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Idaho Falls by month

Plan your trip from Knoxville to Idaho Falls by taking into account the cheapest months to travel. The average price of a one-way flight from Knoxville to Idaho Falls is currently $0 while a round-trip flight costs $709. Price data was last updated on April 21, 2024.

Currently, December is the cheapest month in which you can book a flight from Knoxville to Idaho Falls (average of $397). Flying from Knoxville to Idaho Falls in June is currently the most expensive (average of $625). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$469

February

$446

March

$535

April

$498

May

$493

June

$625

July

$611

August

$553

September

$532

October

$488

November

$456

December

$397

Temperature and rainfall in Idaho Falls by month

Plan your trip to Idaho Falls by taking into account the average temperature and rainfall totals by month.

IDA

Temperature

23 - 69.8 °F

Reviews of airlines servicing Idaho Falls

Get insights into the airlines that provide service to Idaho Falls. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho Falls. Reviews last updated April 25, 2024.
To help decide which airline to fly from Knoxville to Idaho Falls, see what other customers have to say about United Airlines and American Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
11,234 reviews
Check prices

Comfort

7.2

Food

6.7

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.1

Reviews

1 / 10

There were a lot of delays. Not sure if they could be helped, but it made me super nervous about catching my already tight connection. The connection was held for me, but I had to really hurry to make it.

United Airlines
7.4
Good
11,234 reviews
United Airlines
7.4
Good
11,234 reviews
Check prices

Comfort

7.2

Food

6.7

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.1

Reviews

1 / 10

There were a lot of delays. Not sure if they could be helped, but it made me super nervous about catching my already tight connection. The connection was held for me, but I had to really hurry to make it.

American Airlines
7.3
Good
14,898 reviews
United Airlines
7.4
Good
11,234 reviews
Check prices

Comfort

7.2

Food

6.7

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.1

Reviews

1 / 10

There were a lot of delays. Not sure if they could be helped, but it made me super nervous about catching my already tight connection. The connection was held for me, but I had to really hurry to make it.

Related info for your journey

Find useful and relevant information for your journey from Knoxville to Idaho Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Knoxville to Idaho Falls for under $700 on Cheapflights?

    Yes, there are multiple flights from Knoxville to Idaho Falls for under $700. The cheapest flight booked recently is on American Airlines for just $603, but on average you can expect to pay $862.

  • What are the cheapest airlines flying from Knoxville to Idaho Falls round-trip?

    Currently priced at $603, American Airlines will fly you from Knoxville to Idaho Falls and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $610. You may be able to fly from Knoxville to Idaho Falls for 28% less than the average price by searching for these airlines.

  • What does TYS to IDA mean?

    Great question - TYS to IDA just means Knoxville McGhee Tyson Airport to Idaho Falls Fanning Field Airport. Now you’ll know what these unique codes when you look for flights!

  • Can I find deals for flights from Knoxville to Idaho Falls that include extra baggage allowance?

    The amount of baggage you can bring on your Knoxville to Idaho Falls flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Knoxville to Idaho Falls with specific airlines?

    Yes, Cheapflights allows you to browse and filter Knoxville to Idaho Falls flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Knoxville to Idaho Falls that include hotel bookings?

    Yes. In addition to deals on Knoxville to Idaho Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Knoxville to Idaho Falls?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Idaho Falls.

  • Can I find deals for business class flights from Knoxville to Idaho Falls?

    Yes. Cheapflights offers flight deals from Knoxville to Idaho Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Knoxville to Idaho Falls that allow pets onboard?

    Many airlines flying from Knoxville to Idaho Falls offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Knoxville to Idaho Falls?

    Yes, you can often find last-minute deals on Knoxville to Idaho Falls flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Knoxville to Idaho Falls flight deals updated?

    The Knoxville to Idaho Falls flight deals you see on this page were last updated on 4/25.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Knoxville to Idaho Falls
See prices for flight routes from nearby airports that may be better suited for you.

Nashville to Boise flights
Knoxville to Spokane flights
Nashville to Idaho Falls flights
Nashville to Spokane flights
Knoxville to Boise flights
Memphis to Boise flights
Memphis to Spokane flights
Blountville to Spokane flights
Memphis to Idaho Falls flights
Chattanooga to Boise flights
Chattanooga to Spokane flights
Memphis to Pocatello flights
Nashville to Pocatello flights
Chattanooga to Lewiston flights

Top 2 airlines flying from Knoxville to Idaho Falls

Discover the top 2 airlines that operate flights from Knoxville to Idaho Falls. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$543Average$1,041FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$546Average$802FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Nashville to Orlando flights
San Francisco to Phoenix flights
San Jose to San Diego flights
Atlanta to Los Angeles flights
New Orleans to Las Vegas flights
New York to Moscow flights
New York to Chicago flights
Boston to Charlotte flights
Nashville to Boston flights
New York to Buffalo flights
Atlanta to Houston flights
Knoxville to Bali flights

Search flights from Knoxville to Idaho Falls by cabin class

Find flights from Knoxville to Idaho Falls, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Perugia Sant Egidio
Flights to Biarritz Parme
Flights to Argostoli Cephalonia
Flights to Melilla
Flights to Milas–Bodrum
Flights to Girona Costa Brava
Flights to Fez Sais
Flights to Zakynthos Dionsios Salomos
Flights to Bourgas
Flights to Bodø
Flights to Reggio Calabria Tito Menniti
Flights to Bastia Poretta
Flights to Skiathos
Flights to Kalamata
Flights to Batumi
Flights to Menorca/Mahon
Flights to Kristiansand Kjevik
Flights to Champaign University-Willard
Flights to Kagoshima
Flights to Ohrid
Flights to Clermont-Ferrand Aulnat
Flights to Parikia Paros
Flights to Lanzhou Arpt
Flights to Mason City

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Knoxville to Idaho Falls?

Cheapflights makes it easy to find Knoxville to Idaho Falls flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Knoxville to Idaho Falls?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Idaho Falls from Knoxville.

Can Cheapflights find flights from Knoxville to Idaho Falls with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Knoxville to Idaho Falls, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Knoxville to Idaho Falls become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Idaho Falls from Knoxville today and book when prices fit your budget.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines