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Niagara Falls

$320+ Cheap flights from Knoxville (TYS) to Niagara Falls, Canada

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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — YYZ
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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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 July 31, 2025.

Round-trip from

$320
(Mytrip)

Popular in

November

Cheapest in

March

Average price

$755
From Knoxville McGhee Tyson to Niagara Falls
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Highest demand for flights based on searches. 13% potential increase in price ($78 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 July 31, 2025.

This Mytrip deal was found by Cheapflights users on 7/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/128:49 pmTYS - YYZ
1 stop17h 16mMultiple Airlines
Fri 9/199:35 amYYZ - TYS
1 stop10h 24mMultiple Airlines
Deal found 7/29$320
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Fri 9/263:13 pmTYS - YYZ
1 stop8h 12mAmerican Airlines
Sun 9/286:30 amYYZ - TYS
1 stop8h 13mAmerican Airlines
Deal found 7/30$512
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Wed 9/35:45 amTYS - YYZ
1 stop11h 34mUnited Airlines
Wed 9/1012:10 pmYYZ - TYS
1 stop11h 47mUnited Airlines
Deal found 7/29$559

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 July 31, 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

Fri 9/12

8:49 pm-2:05 pm

1 stop17h 16m

Toronto Pearson Intl

Fri 9/19

9:35 am-7:59 pm

1 stop10h 24m

$320

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Fri 9/26

3:13 pm-11:25 pm

1 stop8h 12m

Toronto Pearson Intl

Sun 9/28

6:30 am-2:43 pm

1 stop8h 13m

$512

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Wed 9/3

5:45 am-5:19 pm

1 stop11h 34m

Toronto Pearson Intl

Wed 9/10

12:10 pm-11:57 pm

1 stop11h 47m

$559

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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, January is the cheapest month in which you can book a flight from Knoxville to Niagara Falls (average of $243). Flying from Knoxville to Niagara Falls in August is currently the most expensive (average of $348). 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 July 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Knoxville to Niagara Falls as you normally would.

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 July 31, 2025.
Read through reviews of airlines operating flights from Knoxville to Niagara Falls, such as United Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,900 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,900 reviews
United Airlines
7.4
Good
8,900 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,900 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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. 4 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, January is the cheapest month in which you can book a flight from Knoxville to Niagara Falls (average of $243). Flying from Knoxville to Niagara Falls in August is currently the most expensive (average of $348). 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 4 airlines flying from Knoxville to Niagara Falls

Discover the top 4 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$158Average$477FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$160Average$483FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$360Average$658FlexibilityNo cancel feeOn-time69%
WestJetCheapest$373Average$487FlexibilityNo cancel feeOn-time60%

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