HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Niagara Falls

$158+ 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 3/15. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — YYZ
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Knoxville to Niagara Falls with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 January 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$279
(Kiwi.com)

One-way from

$158
(Kiwi.com)

Popular in

August

Cheapest in

March

Average price

$607
Provider with most accurate pricing for Knoxville McGhee Tyson-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Toronto (YTO) flights.
Search Deals
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. 24% potential increase in price ($193 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find 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 January 8, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
Mon 1/266:00 amTYS - YYZ
1 stop18h 11mMultiple Airlines
Thu 2/55:15 pmYYZ - TYS
1 stop24h 13mMultiple Airlines
Deal found 1/7$279
This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
Wed 1/213:53 pmTYS - YYZ
2 stops28h 18mMultiple Airlines
Mon 1/267:10 amYYZ - TYS
1 stop15h 18mMultiple Airlines
Deal found 1/7$290
This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
Wed 1/283:53 pmTYS - YYZ
2 stops28h 18mMultiple Airlines
Thu 2/55:15 pmYYZ - TYS
1 stop24h 13mMultiple Airlines
Deal found 1/7$300
This Kiwi.com deal was found by Cheapflights users on 1/8. 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.
Sat 1/2411:59 amTYS - YYZ
1 stop11h 21mMultiple Airlines
Tue 1/273:40 pmYYZ - TYS
1 stop24h 17mMultiple Airlines
Deal found 1/8$308
This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
Fri 1/3011:00 amTYS - YYZ
1 stop10h 19mMultiple Airlines
Thu 2/55:15 pmYYZ - TYS
1 stop24h 13mMultiple Airlines
Deal found 1/7$309
This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
Mon 1/266:00 amTYS - YYZ
1 stop18h 11mMultiple Airlines
Tue 2/38:30 pmYYZ - TYS
1 stop19h 27mMultiple Airlines
Deal found 1/7$311
This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
Mon 1/267:15 amTYS - YYZ
2 stops12h 56mMultiple Airlines
Wed 2/42:20 pmYYZ - TYS
1 stop22h 29mMultiple Airlines
Deal found 1/7$316
This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
Fri 1/3011:00 amTYS - YYZ
1 stop10h 19mMultiple Airlines
Wed 2/42:20 pmYYZ - TYS
1 stop22h 29mMultiple Airlines
Deal found 1/7$321
This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
Mon 1/266:00 amTYS - YYZ
1 stop18h 11mMultiple Airlines
Fri 1/308:30 pmYYZ - TYS
1 stop14h 39mMultiple Airlines
Deal found 1/7$327
This Kiwi.com deal was found by Cheapflights users on 1/7. 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 1/299:29 amTYS - YYZ
2 stops10h 42mMultiple Airlines
Thu 2/55:15 pmYYZ - TYS
1 stop24h 13mMultiple Airlines
Deal found 1/7$334

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 January 8, 2026.
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

Mon 1/26

6:00 am-12:11 am

1 stop18h 11m

Toronto Pearson Intl

Thu 2/5

5:15 pm-5:28 pm

1 stop24h 13m

$279

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Mon 1/26

6:00 am-12:11 am

1 stop18h 11m

Toronto Pearson Intl

Wed 2/4

2:20 pm-12:49 pm

1 stop22h 29m

$290

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Wed 1/21

3:53 pm-8:11 pm

2 stops28h 18m

Toronto Pearson Intl

Mon 1/26

7:10 am-10:28 pm

1 stop15h 18m

$290

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Sat 1/24

11:59 am-11:20 pm

1 stop11h 21m

Toronto Pearson Intl

Tue 1/27

3:40 pm-3:57 pm

1 stop24h 17m

$308

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Thu 1/29

9:29 am-8:11 pm

2 stops10h 42m

Toronto Pearson Intl

Wed 2/4

2:20 pm-12:49 pm

1 stop22h 29m

$346

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Sat 1/31

11:59 am-11:20 pm

1 stop11h 21m

Toronto Pearson Intl

Thu 2/5

5:15 pm-10:10 am

1 stop16h 55m

$368

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Sun 2/22

9:32 pm-12:14 am

2 stops26h 42m

Toronto Pearson Intl

Sun 3/1

8:00 pm-6:31 pm

1 stop22h 31m

$380

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Thu 1/29

8:30 am-9:19 pm

1 stop12h 49m

Toronto Pearson Intl

Fri 1/30

8:30 pm-11:09 am

1 stop14h 39m

$380

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Sat 2/21

11:42 am-9:29 pm

1 stop9h 47m

Toronto Pearson Intl

Sat 2/28

6:00 am-6:37 pm

1 stop12h 37m

$386

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Sun 2/22

7:51 am-9:29 pm

1 stop13h 38m

Toronto Pearson Intl

Sun 3/1

11:40 am-8:40 pm

1 stop9h 00m

$414

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Showing 1-10 of 14 results
1
2

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.

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 January 8, 2026.
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
8,025 reviews

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Crew

8.5

Overall

7.9

Food

7.2

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
8,025 reviews
Delta
7.9
Good
8,025 reviews

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Crew

8.5

Overall

7.9

Food

7.2

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
9,139 reviews
Delta
7.9
Good
8,025 reviews

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Crew

8.5

Overall

7.9

Food

7.2

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
11,095 reviews
Delta
7.9
Good
8,025 reviews

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Crew

8.5

Overall

7.9

Food

7.2

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

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.

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 January 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$158Average$728FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$443Average$755FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$554Average$755FlexibilityNo cancel feeOn-time69%

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.