$154+ 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — YYZ
May 17 — May 241
Round-trip
1 adult, Economy
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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
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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
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Best
Last-minute
One-way
Cheapest flights from Knoxville to Niagara FallsExplore 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 17, 2026.
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 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
Sun 6/147:01 pm
TYS
- YYZ
1 stop25h 04m
Multiple Airlines
Sun 6/214:50 pm
YYZ
- TYS
1 stop28h 23m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$345
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/610:05 pm
TYS
- YYZ
1 stop22h 00m
Multiple Airlines
Fri 7/177:45 am
YYZ
- TYS
1 stop13h 30m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$347
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/610:05 pm
TYS
- YYZ
1 stop22h 00m
Multiple Airlines
Mon 7/137:45 am
YYZ
- TYS
1 stop15h 48m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$350
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1010:05 pm
TYS
- YYZ
1 stop25h 30m
Multiple Airlines
Fri 7/177:45 am
YYZ
- TYS
1 stop13h 30m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$351
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/610:05 pm
TYS
- YYZ
1 stop22h 00m
Multiple Airlines
Thu 7/167:45 am
YYZ
- TYS
1 stop14h 39m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$353
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1010:05 pm
TYS
- YYZ
1 stop25h 30m
Multiple Airlines
Thu 7/167:45 am
YYZ
- TYS
1 stop14h 39m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$356
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Thu 5/148:20 am
TYS
- YYZ
2 stops13h 35m
Multiple Airlines
Sun 5/178:10 am
YYZ
- TYS
1 stop14h 23m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
Thu 4/309:25 pm
TYS
- YYZ
1 stop14h 20m
Multiple Airlines
Mon 5/49:50 am
YYZ
- TYS
1 stop7h 40m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$376
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 5/151:43 pm
TYS
- YYZ
2 stops17h 12m
Multiple Airlines
Sun 5/178:00 pm
YYZ
- TYS
1 stop21h 30m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$377
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
Tue 7/144:20 pm
TYS
- YYZ
1 stop27h 45m
Multiple Airlines
Tue 7/216:30 am
YYZ
- TYS
1 stop9h 40m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$387
Best flights from Knoxville to Niagara FallsDiscover carefully curated flight deals from Knoxville to Niagara Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2026.
Discover carefully curated flight deals from Knoxville to Niagara Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 5/151:43 pm
TYS
- YYZ
2 stops17h 12m
Multiple Airlines
Sun 5/178:00 pm
YYZ
- TYS
1 stop21h 30m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$377
This American Airlines deal was found by Cheapflights users on 4/16. 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.
Thu 5/76:00 am
TYS
- YYZ
1 stop10h 45m
American Airlines
Mon 5/1111:10 am
YYZ
- TYS
1 stop10h 30m
American Airlines
Deal found 4/16![American Airlines logo]()
$554
This Delta deal was found by Cheapflights users on 4/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/811:41 am
TYS
- YYZ
1 stop3h 39m
Delta
Mon 7/136:15 am
YYZ
- TYS
1 stop8h 33m
Delta
Deal found 4/14![Delta logo]()
$615
This United Airlines deal was found by Cheapflights users on 4/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/146:01 pm
TYS
- YYZ
1 stop5h 58m
United Airlines
Sun 5/178:50 am
YYZ
- TYS
1 stop4h 26m
United Airlines
Deal found 4/15![United Airlines logo]()
$615
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 7/137:20 pm
TYS
- YYZ
1 stop21h 25m
Multiple Airlines
Thu 7/167:25 am
YYZ
- TYS
1 stop5h 37m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$417
This Kiwi.com deal was found by Cheapflights users on 4/15. 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.
Wed 5/64:25 pm
TYS
- YYZ
1 stop21h 40m
Multiple Airlines
Wed 5/134:50 pm
YYZ
- TYS
2 stops28h 00m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$467
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
Thu 7/167:15 am
TYS
- YYZ
2 stops12h 20m
Multiple Airlines
Mon 7/201:30 pm
YYZ
- TYS
1 stop26h 40m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$472
This Kiwi.com deal was found by Cheapflights users on 4/12. 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 8/288:30 am
TYS
- YYZ
1 stop12h 25m
Multiple Airlines
Mon 8/317:45 am
YYZ
- TYS
1 stop11h 18m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$485
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Mon 5/111:15 pm
TYS
- YYZ
1 stop10h 44m
Multiple Airlines
Mon 5/189:50 am
YYZ
- TYS
1 stop7h 40m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$520
Last-minute flights from Knoxville to Niagara FallsDiscover last-minute flight deals from Knoxville to Niagara Falls. Data last updated April 17, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Niagara Falls. Data last updated April 17, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
Thu 4/309:25 pm
TYS
- YYZ
1 stop14h 20m
Multiple Airlines
Mon 5/49:50 am
YYZ
- TYS
1 stop7h 40m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$376
This Kiwi.com deal was found by Cheapflights users on 4/15. 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.
Wed 5/64:25 pm
TYS
- YYZ
1 stop21h 40m
Multiple Airlines
Wed 5/134:50 pm
YYZ
- TYS
2 stops28h 00m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$467
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
Thu 5/79:40 pm
TYS
- YYZ
2 stops21h 55m
Multiple Airlines
Mon 5/117:45 am
YYZ
- TYS
1 stop9h 45m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$428
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Thu 5/148:20 am
TYS
- YYZ
2 stops13h 35m
Multiple Airlines
Sun 5/178:10 am
YYZ
- TYS
1 stop14h 23m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 5/151:43 pm
TYS
- YYZ
2 stops17h 12m
Multiple Airlines
Sun 5/178:00 pm
YYZ
- TYS
1 stop21h 30m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$377
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
Thu 5/287:15 am
TYS
- YYZ
1 stop9h 40m
Multiple Airlines
Thu 6/46:30 am
YYZ
- TYS
1 stop8h 27m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$442
One-way flights from Knoxville to Niagara FallsSearch for one-way flight options from Knoxville to Niagara Falls. Find affordable one-way fares based on user searches. Data last updated April 17, 2026.
Search for one-way flight options from Knoxville to Niagara Falls. Find affordable one-way fares based on user searches. Data last updated April 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/134:25 pm
TYS
- YYZ
1 stop28h 35m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
Thu 5/287:15 am
TYS
- YYZ
1 stop9h 40m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$198
This Kiwi.com deal was found by Cheapflights users on 4/15. 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.
Thu 4/309:25 pm
TYS
- YYZ
2 stops38h 10m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$235
This Delta deal was found by Cheapflights users on 4/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/87:33 pm
TYS
- YYZ
1 stop4h 25m
Delta
Deal found 4/13![Delta logo]()
$269
This Delta deal was found by Cheapflights users on 4/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/206:05 pm
TYS
- YYZ
1 stop5h 53m
Delta
Deal found 4/17![Delta logo]()
$278
This Air Canada deal was found by Cheapflights users on 4/13. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/205:45 am
TYS
- YYZ
2 stops7h 23m
Air Canada
Deal found 4/13![Air Canada logo]()
$304
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 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $345 (Kiwi.com) |
One-way from | $154 (Kiwi.com) |
Popular in | August |
Cheapest in | June |
Average price | $593 |
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 17, 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
Cheapest round-trip
KnoxvilleToronto
TYS - YYZ
TYSYYZ
Knoxville McGhee Tyson
Fri 5/15
1:43 pm-6:55 am
2 stops17h 12m
Toronto Pearson Intl
Sun 5/17
8:00 pm-5:30 pm
1 stop21h 30m
$377
KnoxvilleToronto
TYS - YYZ
TYSYYZ
Knoxville McGhee Tyson
Mon 7/13
7:20 pm-4:45 pm
1 stop21h 25m
Toronto Pearson Intl
Thu 7/16
7:25 am-1:02 pm
1 stop5h 37m
$417
KnoxvilleToronto
TYS - YYZ
TYSYYZ
Knoxville McGhee Tyson
Wed 5/6
4:25 pm-2:05 pm
1 stop21h 40m
Toronto Pearson Intl
Wed 5/13
4:50 pm-8:50 pm
2 stops28h 00m
$467
KnoxvilleToronto
TYS - YYZ
TYSYYZ
Knoxville McGhee Tyson
Thu 7/16
7:15 am-7:35 pm
2 stops12h 20m
Toronto Pearson Intl
Mon 7/20
1:30 pm-4:10 pm
1 stop26h 40m
$472
KnoxvilleToronto
TYS - YYZ
TYSYYZ
Knoxville McGhee Tyson
Fri 8/28
8:30 am-8:55 pm
1 stop12h 25m
Toronto Pearson Intl
Mon 8/31
7:45 am-7:03 pm
1 stop11h 18m
$485
KnoxvilleToronto
TYS - YYZ
TYSYYZ
Knoxville McGhee Tyson
Mon 5/11
1:15 pm-11:59 pm
1 stop10h 44m
Toronto Pearson Intl
Mon 5/18
9:50 am-5:30 pm
1 stop7h 40m
$520
KnoxvilleToronto
TYS - YYZ
TYSYYZ
Knoxville McGhee Tyson
Thu 5/7
6:00 am-4:45 pm
1 stop10h 45m
Toronto Pearson Intl
Mon 5/11
11:10 am-9:40 pm
1 stop10h 30m
$554
KnoxvilleToronto
TYS - YYZ
TYSYYZ
Knoxville McGhee Tyson
Wed 7/8
11:41 am-3:20 pm
1 stop3h 39m
Toronto Pearson Intl
Mon 7/13
6:15 am-2:48 pm
1 stop8h 33m
$615
Quickest round-trip
KnoxvilleToronto
TYS - YYZ
TYSYYZ
Knoxville McGhee Tyson
Thu 5/14
6:01 pm-11:59 pm
1 stop5h 58m
Toronto Pearson Intl
Sun 5/17
8:50 am-1:16 pm
1 stop4h 26m
$615
Cheapest one-way
KnoxvilleToronto
TYS - YYZ
TYSYYZ
Knoxville McGhee Tyson
Wed 5/13
4:25 pm-9:55 pm
2 stops29h 30m
$179
Showing 1-10 of 15 resultsSorted by cheapest first
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.
TYS-YYZ
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
TYS-NI4
TYS-YYZ
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 17, 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.
Comfort
7.3
Entertainment
7.1
Crew
8.1
Boarding
7.7
Overall
7.4
Food
6.6
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Comfort
7.3
Entertainment
7.1
Crew
8.1
Boarding
7.7
Overall
7.4
Food
6.6
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Comfort
7.3
Entertainment
7.1
Crew
8.1
Boarding
7.7
Overall
7.4
Food
6.6
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
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.
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Knoxville and Niagara Falls flights
Browse other Knoxville and Niagara Falls flight options. Last updated on April 17, 2026.
Other flights from Knoxville
Browse through other flights departing from Knoxville. Flights are based on user searches made on Cheapflights and were last updated on April 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Knoxville to Niagara Falls flights
Consider these flights traveling from Knoxville to Niagara Falls.
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 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$372 | Average$683 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$545 | Average$640 | FlexibilityNo cancel fee | On-time69% |