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Idaho Falls

$495+ Cheap flights from Knoxville to Idaho Falls (TYS - IDA)

TYS — IDA
Dec 9 — Dec 161
Wed 12/9
Wed 12/16
1 adult, Economy
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Cheap flight deals from Knoxville to Idaho Falls

Cheapest flights from Knoxville to Idaho Falls

Thu 11/199:00 am -
1 stop8h 38m
Mon 11/232:35 pm -
1 stop5h 57m
Deal found 11/5$495
Fri 11/65:30 am -
1 stop9h 35m
Wed 11/118:00 am -
1 stop6h 42m
Deal found 11/5$605
Tue 12/296:00 am -
2 stops11h 38m
Wed 1/67:00 am -
1 stop5h 55m
Deal found 11/8$743
Mon 12/284:55 pm -
1 stop6h 24m
Tue 1/57:00 am -
1 stop5h 55m
Deal found 11/7$793
Mon 12/282:55 pm -
1 stop9h 01m
Wed 1/66:18 am -
2 stops10h 24m
Deal found 11/6$799
Tue 12/226:00 am -
2 stops11h 38m
Mon 12/284:20 pm -
2 stops22h 55m
Deal found 11/6$800

Find flight deals from Knoxville to Idaho Falls

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$384
(United Airlines)
Provider with most accurate pricing for Knoxville McGhee Tyson-Idaho Falls Fanning Field flight deals.
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Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Idaho Falls Fanning Field flights.
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From Knoxville McGhee Tyson to Idaho Falls Fanning Field
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Knoxville to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KnoxvilleIdaho Falls

TYS Knoxville McGhee Tyson - IDA Idaho Falls Fanning Field

TYSIDA

Knoxville McGhee Tyson

Tue 4/27

10:16 am-9:08 pm

2 stops12h 52m

Idaho Falls Fanning Field

Sat 5/1

2:35 pm-10:20 pm

1 stop5h 45m

$514

KnoxvilleIdaho Falls

TYS Knoxville McGhee Tyson - IDA Idaho Falls Fanning Field

TYSIDA

Knoxville McGhee Tyson

Thu 11/19

6:45 am-1:28 pm

2 stops8h 43m

Idaho Falls Fanning Field

Mon 11/23

10:35 am-11:59 pm

2 stops11h 24m

$550

KnoxvilleIdaho Falls

TYS Knoxville McGhee Tyson - IDA Idaho Falls Fanning Field

TYSIDA

Knoxville McGhee Tyson

Tue 12/22

6:00 am-3:38 pm

2 stops11h 38m

Idaho Falls Fanning Field

Mon 12/28

4:20 pm-5:15 pm

2 stops22h 55m

$800
Quickest round-trip

KnoxvilleIdaho Falls

TYS Knoxville McGhee Tyson - IDA Idaho Falls Fanning Field

TYSIDA

Knoxville McGhee Tyson

Tue 12/29

4:55 pm-9:19 pm

1 stop6h 24m

Idaho Falls Fanning Field

Wed 1/6

7:00 am-2:55 pm

1 stop5h 55m

$818

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/7

Sorted by cheapest first

Compare providers for flights from Knoxville to Idaho Falls

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Knoxville to Idaho Falls in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Knoxville-Idaho Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Knoxville-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Knoxville-Idaho Falls flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Knoxville-Idaho Falls flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Knoxville-Idaho Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Knoxville to Idaho Falls

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Knoxville with our price prediction graph.
Estimated round-trip price

Reviews of airlines servicing Idaho Falls

Get a feel of what it's like to fly with United Airlines from Knoxville to Idaho Falls by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.3
Good
10,475 reviews

Food

6.7

Boarding

7.7

Overall

7.3

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.
United Airlines
7.3
Good
10,475 reviews
United Airlines
7.3
Good
10,475 reviews

Food

6.7

Boarding

7.7

Overall

7.3

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.

Related info for your journey

  • How long is the flight from Knoxville to Idaho Falls?

    A quick flight from Knoxville to Idaho Falls can take about 12h 52m. United Airlines provides one of the quickest options available for as low as $514. Airlines will cover a distance of 1575 mi.

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

    Currently priced at $416, United Airlines will fly you from Knoxville to Idaho Falls and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip.

  • 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Knoxville to Idaho Falls

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$416Average$615FlexibilityNo cancel feeOn-time69%

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