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Niagara Falls

$156+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — YYZ
May 12 — May 191
Tue 5/12
Tue 5/19
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 April 12, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/7. 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 5/64:25 pm
TYS
-
YYZ
1 stop28h 30m
Multiple Airlines
Wed 5/134:50 pm
YYZ
-
TYS
1 stop28h 24m
Multiple Airlines
Deal found 4/7$341
This Kiwi.com deal was found by Cheapflights users on 4/11. 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 7/269:11 pm
TYS
-
YYZ
1 stop23h 44m
Multiple Airlines
Sat 8/11:30 pm
YYZ
-
TYS
1 stop22h 39m
Multiple Airlines
Deal found 4/11$401
This Kiwi.com deal was found by Cheapflights users on 4/9. 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 6/205:56 pm
TYS
-
YYZ
1 stop26h 09m
Multiple Airlines
Tue 6/306:30 am
YYZ
-
TYS
1 stop9h 42m
Multiple Airlines
Deal found 4/9$410
This Kiwi.com deal was found by Cheapflights users on 4/8. 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.
Thu 8/209:30 am
TYS
-
YYZ
1 stop11h 00m
Multiple Airlines
Mon 8/248:10 am
YYZ
-
TYS
1 stop25h 30m
Multiple Airlines
Deal found 4/8$413
This Kiwi.com deal was found by Cheapflights users on 4/8. 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.
Mon 5/258:19 pm
TYS
-
YYZ
2 stops49h 36m
Multiple Airlines
Thu 6/47:45 am
YYZ
-
TYS
1 stop14h 44m
Multiple Airlines
Deal found 4/8$430
This Kiwi.com deal was found by Cheapflights users on 4/11. 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 7/126:54 pm
TYS
-
YYZ
1 stop25h 11m
Multiple Airlines
Sat 8/11:30 pm
YYZ
-
TYS
1 stop22h 39m
Multiple Airlines
Deal found 4/11$434
This Kiwi.com deal was found by Cheapflights users on 4/7. 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 9/188:20 am
TYS
-
YYZ
1 stop15h 15m
Multiple Airlines
Mon 9/219:50 am
YYZ
-
TYS
1 stop10h 49m
Multiple Airlines
Deal found 4/7$443
This Kiwi.com deal was found by Cheapflights users on 4/8. 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.
Sun 5/243:46 pm
TYS
-
YYZ
2 stops28h 19m
Multiple Airlines
Thu 6/47:25 am
YYZ
-
TYS
1 stop5h 36m
Multiple Airlines
Deal found 4/8$450
This American Airlines deal was found by Cheapflights users on 4/11. 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.
Sat 5/95:37 am
TYS
-
YYZ
1 stop11h 08m
American Airlines
Sat 5/1611:10 am
YYZ
-
TYS
1 stop10h 40m
American Airlines
Deal found 4/11$469

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 April 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$341
(Kiwi.com)

One-way from

$156
(Kiwi.com)

Popular in

August

Cheapest in

June

Average price

$593
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. 9% potential increase in price ($70 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
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 April 12, 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

Wed 5/6

4:25 pm-8:55 pm

1 stop28h 30m

Toronto Pearson Intl

Wed 5/13

4:50 pm-9:14 pm

1 stop28h 24m

$341

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Sat 6/20

5:56 pm-8:05 pm

1 stop26h 09m

Toronto Pearson Intl

Tue 6/30

6:30 am-4:12 pm

1 stop9h 42m

$410

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Mon 5/25

8:19 pm-9:55 pm

2 stops49h 36m

Toronto Pearson Intl

Thu 6/4

7:45 am-10:29 pm

1 stop14h 44m

$430

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Mon 5/25

2:40 pm-8:09 pm

1 stop29h 29m

Toronto Pearson Intl

Fri 6/5

3:55 pm-12:16 pm

1 stop20h 21m

$496

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Tue 4/28

6:00 am-4:45 pm

1 stop10h 45m

Toronto Pearson Intl

Tue 5/12

11:10 am-9:40 pm

1 stop10h 30m

$527

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Wed 4/29

9:40 am-2:19 pm

1 stop4h 39m

Toronto Pearson Intl

Wed 4/29

5:20 pm-11:08 pm

1 stop5h 48m

$543

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Sat 5/23

5:57 pm-11:59 pm

1 stop6h 02m

Toronto Pearson Intl

Sat 5/30

2:30 pm-8:34 pm

1 stop6h 04m

$567

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Fri 5/1

1:43 pm-5:45 am

2 stops16h 02m

Toronto Pearson Intl

Wed 5/6

10:00 am-4:49 pm

1 stop6h 49m

$591

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Fri 5/8

7:00 am-1:42 pm

1 stop6h 42m

Toronto Pearson Intl

Mon 5/11

8:50 am-4:54 pm

1 stop8h 04m

$615
Quickest round-trip

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Sun 7/26

5:45 am-10:04 am

1 stop4h 19m

Toronto Pearson Intl

Sun 7/26

2:45 pm-8:39 pm

1 stop5h 54m

$642

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/9

Showing 1-10 of 18 resultsSorted by cheapest first
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

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 April 12, 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
9,574 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

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
9,574 reviews
United Airlines
7.4
Good
9,574 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

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
11,570 reviews
United Airlines
7.4
Good
9,574 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

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 April 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$372Average$683FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$545Average$640FlexibilityNo cancel feeOn-time69%

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