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Niagara Falls

$175+ Cheap flights from Knoxville (TYS) to Niagara Falls, 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 12/14. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — YYZ
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
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 September 15, 2025.

Round-trip from

$288
(Kiwi.com)

One-way from

$175
(Kiwi.com)

Popular in

August

Cheapest in

March

Average price

$663
From Knoxville McGhee Tyson to Niagara Falls
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One-way flight from Knoxville McGhee Tyson to Niagara Falls
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Highest demand for flights based on searches. 24% potential increase in price ($189 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 15, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/15. 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 10/246:15 pmTYS - YYZ
1 stop20h 10mMultiple Airlines
Wed 10/295:15 pmYYZ - TYS
1 stop29h 32mMultiple Airlines
Deal found 9/15$288
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Wed 10/294:26 pmTYS - YYZ
1 stop22h 14mMultiple Airlines
Wed 11/52:20 pmYYZ - TYS
2 stops32h 13mMultiple Airlines
Deal found 9/13$371
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 10/38:54 pmTYS - YYZ
1 stop25h 26mMultiple Airlines
Mon 10/69:35 amYYZ - TYS
1 stop7h 06mMultiple Airlines
Deal found 9/12$427
This Mytrip deal was found by Cheapflights users on 9/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/187:00 amTYS - YYZ
2 stops28h 38mMultiple Airlines
Sat 9/206:30 amYYZ - TYS
1 stop9h 11mMultiple Airlines
Deal found 9/14$633
This American Airlines deal was found by Cheapflights users on 9/13. 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.
Wed 10/11:06 pmTYS - YYZ
1 stop9h 57mAmerican Airlines
Mon 10/611:00 amYYZ - TYS
1 stop11h 09mAmerican Airlines
Deal found 9/13$648
This FlightHub deal was found by Cheapflights users on 9/15. 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.
Fri 9/267:11 pmTYS - YYZ
1 stop26h 40mWestJet
Sun 9/286:30 pmYYZ - TYS
2 stops20h 58mWestJet
Deal found 9/15$666

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 September 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

Fri 10/24

6:15 pm-2:25 pm

1 stop20h 10m

Toronto Pearson Intl

Wed 10/29

5:15 pm-10:47 pm

1 stop29h 32m

$288

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Wed 10/29

4:26 pm-2:40 pm

1 stop22h 14m

Toronto Pearson Intl

Wed 11/5

2:20 pm-10:33 pm

2 stops32h 13m

$371

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Fri 10/3

8:54 pm-10:20 pm

1 stop25h 26m

Toronto Pearson Intl

Mon 10/6

9:35 am-4:41 pm

1 stop7h 06m

$427

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Fri 9/26

7:11 pm-9:51 pm

1 stop26h 40m

Toronto Pearson Intl

Sun 9/28

6:30 pm-3:28 pm

2 stops20h 58m

$666

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Wed 10/1

7:14 am-5:43 pm

1 stop10h 29m

Toronto Pearson Intl

Mon 10/6

6:30 am-2:33 pm

1 stop8h 03m

$672

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Mon 10/27

3:03 pm-11:29 pm

1 stop8h 26m

Toronto Pearson Intl

Thu 10/30

1:15 pm-9:03 pm

1 stop7h 48m

$735

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Sun 12/14

6:30 am-6:47 am

2 stops24h 17m

$175

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Mon 12/22

5:38 pm-12:11 am

1 stop6h 33m

$191

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Sat 10/4

9:58 pm-9:07 pm

3 stops47h 09m

$215

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

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 September 15, 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 September 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
8.0
Very good
7,956 reviews

Food

7.3

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,956 reviews
Delta
8.0
Very good
7,956 reviews

Food

7.3

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,931 reviews
Delta
8.0
Very good
7,956 reviews

Food

7.3

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,956 reviews

Food

7.3

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
WestJet
7.2
Good
3,091 reviews
Delta
8.0
Very good
7,956 reviews

Food

7.3

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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

Browse thousands of different options on Cheapflights for your next trip

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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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$158Average$484FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$372Average$755FlexibilityNo cancel feeOn-time71%
WestJetCheapest$382Average$528FlexibilityNo cancel feeOn-time60%
United AirlinesCheapest$488Average$755FlexibilityNo cancel feeOn-time69%

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