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Niagara Falls

$127+ 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 4/16. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — YYZ
Apr 26 — May 31
Sun 4/26
Sun 5/3
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 March 27, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/26. 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 4/269:32 pm
TYS
-
YYZ
1 stop16h 33m
Multiple Airlines
Sun 5/37:30 am
YYZ
-
TYS
1 stop13h 05m
Multiple Airlines
Deal found 3/26$376
This Kiwi.com deal was found by Cheapflights users on 3/22. 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 4/154:25 pm
TYS
-
YYZ
1 stop21h 40m
Multiple Airlines
Wed 4/299:35 am
YYZ
-
TYS
1 stop29h 15m
Multiple Airlines
Deal found 3/22$382
This Kiwi.com deal was found by Cheapflights users on 3/25. 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.
Tue 8/44:20 pm
TYS
-
YYZ
1 stop24h 25m
Multiple Airlines
Tue 8/116:30 am
YYZ
-
TYS
1 stop29h 36m
Multiple Airlines
Deal found 3/25$394
This American Airlines deal was found by Cheapflights users on 3/25. 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 4/156:00 am
TYS
-
YYZ
1 stop10h 45m
American Airlines
Wed 4/2911:10 am
YYZ
-
TYS
1 stop10h 30m
American Airlines
Deal found 3/25$413
This Kiwi.com deal was found by Cheapflights users on 3/25. 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 4/201:15 pm
TYS
-
YYZ
2 stops25h 38m
Multiple Airlines
Thu 4/239:35 am
YYZ
-
TYS
1 stop11h 07m
Multiple Airlines
Deal found 3/25$414
This Kiwi.com deal was found by Cheapflights users on 3/25. 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.
Tue 8/44:20 pm
TYS
-
YYZ
1 stop24h 25m
Multiple Airlines
Mon 8/108:10 am
YYZ
-
TYS
1 stop15h 21m
Multiple Airlines
Deal found 3/25$424
This Kiwi.com deal was found by Cheapflights users on 3/25. 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 4/199:32 pm
TYS
-
YYZ
1 stop16h 33m
Multiple Airlines
Wed 4/229:35 am
YYZ
-
TYS
1 stop29h 10m
Multiple Airlines
Deal found 3/25$425
This Kiwi.com deal was found by Cheapflights users on 3/26. 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 6/17:10 am
TYS
-
YYZ
1 stop28h 25m
Multiple Airlines
Thu 6/46:30 am
YYZ
-
TYS
1 stop8h 27m
Multiple Airlines
Deal found 3/26$437
This Kiwi.com deal was found by Cheapflights users on 3/24. 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 5/17:30 am
TYS
-
YYZ
1 stop9h 25m
Multiple Airlines
Fri 5/223:55 pm
YYZ
-
TYS
1 stop20h 19m
Multiple Airlines
Deal found 3/24$440

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 March 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$376
(Kiwi.com)

One-way from

$127
(Kiwi.com)

Popular in

August

Cheapest in

April
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. 14% potential increase in price ($106 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
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 March 27, 2026.
Use the filters below to find and compare flights from Knoxville to Niagara Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Sun 4/26

9:32 pm-2:05 pm

1 stop16h 33m

Toronto Pearson Intl

Sun 5/3

7:30 am-8:35 pm

1 stop13h 05m

$376

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Wed 4/15

4:25 pm-2:05 pm

1 stop21h 40m

Toronto Pearson Intl

Wed 4/29

9:35 am-2:50 pm

1 stop29h 15m

$382

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Mon 4/20

1:15 pm-2:53 pm

2 stops25h 38m

Toronto Pearson Intl

Thu 4/23

9:35 am-8:42 pm

1 stop11h 07m

$414

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Mon 6/1

7:10 am-5:09 pm

2 stops9h 59m

Toronto Pearson Intl

Thu 6/4

7:25 am-1:01 pm

1 stop5h 36m

$449

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Sat 5/2

5:37 am-4:45 pm

1 stop11h 08m

Toronto Pearson Intl

Wed 5/6

11:10 am-9:40 pm

1 stop10h 30m

$468

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Tue 4/14

6:00 am-4:45 pm

1 stop10h 45m

Toronto Pearson Intl

Tue 4/28

11:10 am-9:40 pm

1 stop10h 30m

$515

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Sun 4/19

6:00 am-11:35 am

2 stops29h 35m

Toronto Pearson Intl

Fri 4/24

9:35 am-12:06 pm

1 stop26h 31m

$522

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Mon 9/7

6:23 am-1:15 pm

1 stop6h 52m

Toronto Pearson Intl

Sat 9/12

6:20 am-2:29 pm

1 stop8h 09m

$545

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Sat 5/2

7:00 am-1:42 pm

1 stop6h 42m

Toronto Pearson Intl

Tue 5/5

11:00 am-5:08 pm

1 stop6h 08m

$572

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Thu 8/6

7:11 am-3:20 pm

1 stop8h 09m

Toronto Pearson Intl

Sat 8/8

11:40 am-8:12 pm

1 stop8h 32m

$572

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/23

Showing 1-10 of 21 resultsSorted by cheapest first
1
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3

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

How much does it cost to fly round-trip from Knoxville to Niagara Falls?

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 March 27, 2026.
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
9,491 reviews

Comfort

7.3

Crew

8.1

Food

6.6

Boarding

7.7

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,491 reviews
United Airlines
7.4
Good
9,491 reviews

Comfort

7.3

Crew

8.1

Food

6.6

Boarding

7.7

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.1
Good
11,503 reviews
United Airlines
7.4
Good
9,491 reviews

Comfort

7.3

Crew

8.1

Food

6.6

Boarding

7.7

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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. 2 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Knoxville to Niagara Falls

Discover the top 2 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 March 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$372Average$683FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$554Average$640FlexibilityNo cancel feeOn-time69%

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