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Niagara Falls

$132+ Cheap flights from Knoxville (TYS) to Niagara Falls, ON, Canada

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — YYZ
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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Cheap flight deals from Knoxville to Niagara Falls

Cheapest flights from Knoxville to Niagara Falls
Explore the most affordable flight options available from Knoxville to Niagara Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/182:56 pmTYS - YYZ
1 stop8h 24mMultiple Airlines
Sat 12/207:10 amYYZ - TYS
2 stops38h 46mMultiple Airlines
Deal found 12/14$629
This Kiwi.com deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2812:31 pmTYS - YYZ
2 stops32h 48mMultiple Airlines
Sat 1/33:40 pmYYZ - TYS
1 stop16h 38mMultiple Airlines
Deal found 12/13$676
This American Airlines deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/285:42 amTYS - YYZ
1 stop11h 47mAmerican Airlines
Sat 1/36:00 amYYZ - TYS
1 stop6h 52mAmerican Airlines
Deal found 12/13$762
This American Airlines deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/185:15 amTYS - YYZ
1 stop7h 10mAmerican Airlines
Sat 12/206:00 amYYZ - TYS
1 stop14h 06mAmerican Airlines
Deal found 12/14$1,074
This United Airlines deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:45 amTYS - YYZ
2 stops9h 19mUnited Airlines
Sat 12/2012:10 pmYYZ - TYS
2 stops10h 29mUnited Airlines
Deal found 12/14$1,196
This FlightHub deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1812:50 pmTYS - YYZ
1 stop4h 25mWestJet
Sat 12/206:30 pmYYZ - TYS
2 stops21h 21mWestJet
Deal found 12/14$1,249
This FlightHub deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/286:59 pmTYS - YYZ
2 stops26h 54mWestJet
Sat 1/310:50 pmYYZ - TYS
2 stops19h 24mWestJet
Deal found 12/13$1,336
This Delta deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/185:40 amTYS - YYZ
2 stops11h 35mDelta
Sat 12/206:05 amYYZ - TYS
2 stops12h 09mDelta
Deal found 12/14$2,812

Find flight deals from Knoxville to Niagara Falls

Keep the following information in mind while searching for Knoxville to Niagara Falls flight deals. Data was last updated December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$294
(Mytrip)

One-way from

$132
(Mytrip)

Popular in

August

Cheapest in

March

Average price

$658
Provider with most accurate pricing for Knoxville McGhee Tyson-Toronto (YTO) flight deals.
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Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Toronto (YTO) flights.
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From Knoxville McGhee Tyson to Niagara Falls
Search Deals
One-way flight from Knoxville McGhee Tyson to Niagara Falls
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($205 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Knoxville to Niagara 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 2,558,603 searches. Data last updated December 15, 2025.
Use the filters below to find and compare flights from Knoxville to Niagara Falls that are best for you.

Fly from

Knoxville

Fly to

Niagara Falls

Route

Depart

Return

Price

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Thu 1/29

9:29 am-11:20 pm

1 stop13h 51m

Toronto Pearson Intl

Thu 2/5

7:10 am-12:05 pm

2 stops28h 55m

$334

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Thu 1/29

9:29 am-11:20 pm

1 stop13h 51m

Toronto Pearson Intl

Sat 1/31

2:15 pm-8:39 am

2 stops18h 24m

$339

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Thu 4/9

5:10 pm-2:53 pm

1 stop21h 43m

Toronto Pearson Intl

Mon 4/13

7:15 am-5:30 pm

1 stop10h 15m

$389

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Fri 2/6

7:54 am-4:03 pm

1 stop8h 09m

Toronto Pearson Intl

Mon 2/9

11:35 am-10:09 pm

1 stop10h 34m

$412

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Thu 1/29

7:54 am-9:23 pm

1 stop13h 29m

Toronto Pearson Intl

Sat 1/31

11:30 am-9:54 pm

1 stop10h 24m

$426

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Fri 3/20

7:15 am-4:20 pm

2 stops9h 05m

Toronto Pearson Intl

Sun 3/22

2:20 pm-10:35 am

1 stop20h 15m

$437

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Wed 1/7

6:00 am-4:35 pm

1 stop10h 35m

Toronto Pearson Intl

Sun 1/11

10:59 am-9:44 pm

1 stop10h 45m

$491

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Wed 3/4

3:54 pm-11:20 pm

1 stop7h 26m

$132

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Fri 3/13

9:00 am-11:20 pm

1 stop14h 20m

$153

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Wed 3/18

8:30 am-12:14 am

1 stop15h 44m

$158

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Showing 1-10 of 12 results
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Best time to book a flight from Knoxville to Niagara Falls

Have a flexible travel schedule? Discover the best time to fly to Niagara Falls from Knoxville with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Knoxville to Niagara Falls

What is the cheapest month to book a flight from Knoxville to Niagara Falls?

Currently, April is the cheapest month in which you can book a flight from Knoxville to Niagara Falls (average of $158). Flying from Knoxville to Niagara Falls in August is currently the most expensive (average of $815). 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.

What is the cheapest time of day to fly from TYS to NI4?

Find hourly flight availability from Knoxville to Niagara Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 15, 2025.

A simple way to save on the total cost of your ticket is to fly from Knoxville to Niagara Falls in the evening. If you’re flexible enough to do this you can expect to save up to 16% on your trip compared to booking a flight in the morning.

Reviews of airlines servicing Niagara Falls

Get insights into the airlines that provide service to Niagara 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 Niagara Falls. Reviews last updated December 15, 2025.
Read through reviews of airlines operating flights from Knoxville to Niagara Falls, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,008 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Overall

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,008 reviews
Delta
7.9
Good
8,008 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Overall

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,092 reviews
Delta
7.9
Good
8,008 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Overall

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,051 reviews
Delta
7.9
Good
8,008 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Overall

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

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

  • What airport do you fly from for flights from Knoxville to Niagara Falls?

    For a flight from Knoxville to Niagara Falls, you will be flying from McGhee Tyson. Knoxville McGhee Tyson (TYS) is just 11.3 mi from the center of the city. McGhee Tyson is the only Knoxville airport and it handles 0 outbound flights to Niagara Falls per day. 3 airlines have flights to Niagara Falls from Knoxville McGhee Tyson on a regular basis.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Knoxville to Niagara 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.

  • What is the cheapest month to book a flight from Knoxville to Niagara Falls?

    Currently, April is the cheapest month in which you can book a flight from Knoxville to Niagara Falls (average of $158). Flying from Knoxville to Niagara Falls in August is currently the most expensive (average of $815). 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.

See more FAQs

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Top 3 airlines flying from Knoxville to Niagara Falls

Discover the top 3 airlines that operate flights from Knoxville to Niagara 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 2,558,603 searches. Data last updated December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$158Average$728FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$443Average$755FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$554Average$755FlexibilityNo cancel feeOn-time69%

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