$182+ 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 5/31. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — YYZ
May 31 — Jun 71
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
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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 May 1, 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 May 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/1510:03 pm
TYS
- YYZ
1 stop18h 42m
Multiple Airlines
Sun 6/217:45 am
YYZ
- TYS
1 stop15h 02m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$350
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/81:41 pm
TYS
- YYZ
1 stop27h 14m
Multiple Airlines
Fri 6/129:50 am
YYZ
- TYS
1 stop13h 44m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$360
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/127:10 am
TYS
- YYZ
2 stops9h 59m
Multiple Airlines
Sun 6/149:50 am
YYZ
- TYS
1 stop12h 57m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$362
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 4/27![Multiple Airlines logo]()
$363
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 6/127:22 pm
TYS
- YYZ
1 stop24h 43m
Multiple Airlines
Fri 6/191:30 pm
YYZ
- TYS
1 stop19h 05m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$373
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 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
2 stops29h 30m
Multiple Airlines
Mon 5/189:50 am
YYZ
- TYS
1 stop7h 40m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$375
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 6/11:36 pm
TYS
- YYZ
1 stop24h 29m
Multiple Airlines
Mon 6/89:50 am
YYZ
- TYS
1 stop13h 49m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$380
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 6/117:15 am
TYS
- YYZ
1 stop13h 40m
Multiple Airlines
Thu 6/184:45 pm
YYZ
- TYS
2 stops29h 58m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$383
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 May 1, 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 May 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 4/27![Multiple Airlines logo]()
$363
This United Airlines deal was found by Cheapflights users on 4/28. 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 5/147:00 am
TYS
- YYZ
1 stop4h 49m
United Airlines
Sun 5/1710:15 am
YYZ
- TYS
1 stop6h 39m
United Airlines
Deal found 4/28![United Airlines logo]()
$566
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/127:10 am
TYS
- YYZ
1 stop14h 52m
Multiple Airlines
Sun 6/149:50 am
YYZ
- TYS
1 stop12h 57m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$364
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 6/127:22 pm
TYS
- YYZ
1 stop24h 43m
Multiple Airlines
Fri 6/191:30 pm
YYZ
- TYS
1 stop19h 05m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$373
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 6/117:15 am
TYS
- YYZ
1 stop13h 40m
Multiple Airlines
Thu 6/184:45 pm
YYZ
- TYS
2 stops29h 58m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$383
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 6/18:32 pm
TYS
- YYZ
2 stops27h 38m
Multiple Airlines
Mon 6/89:50 am
YYZ
- TYS
1 stop13h 49m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$396
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 10/129:13 am
TYS
- YYZ
1 stop12h 06m
Multiple Airlines
Fri 10/168:10 am
YYZ
- TYS
1 stop25h 33m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$398
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 6/57:27 pm
TYS
- YYZ
1 stop21h 18m
Multiple Airlines
Mon 6/159:50 am
YYZ
- TYS
1 stop13h 44m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$410
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/149:40 pm
TYS
- YYZ
2 stops24h 25m
Multiple Airlines
Sun 5/179:30 am
YYZ
- TYS
1 stop11h 20m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$416
Last-minute flights from Knoxville to Niagara FallsDiscover last-minute flight deals from Knoxville to Niagara Falls. Data last updated May 1, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Niagara Falls. Data last updated May 1, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 5/123:48 pm
TYS
- YYZ
2 stops30h 07m
Multiple Airlines
Thu 5/146:30 am
YYZ
- TYS
1 stop14h 20m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$606
This Justfly.com deal was found by Cheapflights users on 4/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/126:07 pm
TYS
- YYZ
1 stop27h 12m
WestJet
Thu 5/146:30 pm
YYZ
- TYS
2 stops15h 04m
WestJet
Deal found 4/30![WestJet logo]()
$767
This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/128:35 am
TYS
- YYZ
1 stop8h 40m
Delta
Thu 5/142:20 pm
YYZ
- TYS
1 stop7h 05m
Delta
Deal found 4/30![Delta logo]()
$773
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 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
2 stops29h 30m
Multiple Airlines
Mon 5/189:50 am
YYZ
- TYS
1 stop7h 40m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$375
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/149:40 pm
TYS
- YYZ
2 stops24h 25m
Multiple Airlines
Sun 5/179:30 am
YYZ
- TYS
1 stop11h 20m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$416
This United Airlines deal was found by Cheapflights users on 4/27. 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 5/147:00 am
TYS
- YYZ
1 stop4h 49m
United Airlines
Sun 5/171:00 pm
YYZ
- TYS
1 stop7h 45m
United Airlines
Deal found 4/27![United Airlines logo]()
$566
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 May 1, 2026.
Search for one-way flight options from Knoxville to Niagara Falls. Find affordable one-way fares based on user searches. Data last updated May 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/313:46 pm
TYS
- YYZ
3 stops25h 23m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/112:55 pm
TYS
- YYZ
2 stops25h 10m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1511:16 am
TYS
- YYZ
1 stop27h 44m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$212
This American Airlines deal was found by Cheapflights users on 4/28. 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 5/135:00 am
TYS
- YYZ
1 stop6h 13m
American Airlines
Deal found 4/28![American Airlines logo]()
$254
This Justfly.com deal was found by Cheapflights users on 4/28. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/203:54 pm
TYS
- YYZ
1 stop6h 07m
WestJet
Deal found 4/28![WestJet logo]()
$271
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 May 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $350 (Kiwi.com) |
One-way from | $182 (Kiwi.com) |
Popular in | August |
Cheapest in | June |
Average price | $663 |
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 May 1, 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 7/10
10:05 pm-11:35 pm
1 stop25h 30m
Toronto Pearson Intl
Thu 7/16
7:45 am-10:24 pm
1 stop14h 39m
$363
KnoxvilleToronto
TYS - YYZ
TYSYYZ
Knoxville McGhee Tyson
Fri 6/12
7:10 am-10:02 pm
1 stop14h 52m
Toronto Pearson Intl
Sun 6/14
9:50 am-10:47 pm
1 stop12h 57m
$364
KnoxvilleToronto
TYS - YYZ
TYSYYZ
Knoxville McGhee Tyson
Fri 6/12
7:22 pm-8:05 pm
1 stop24h 43m
Toronto Pearson Intl
Fri 6/19
1:30 pm-8:35 am
1 stop19h 05m
$373
KnoxvilleToronto
TYS - YYZ
TYSYYZ
Knoxville McGhee Tyson
Thu 6/11
7:15 am-8:55 pm
1 stop13h 40m
Toronto Pearson Intl
Thu 6/18
4:45 pm-10:43 pm
2 stops29h 58m
$383
KnoxvilleToronto
TYS - YYZ
TYSYYZ
Knoxville McGhee Tyson
Mon 6/1
8:32 pm-12:10 am
2 stops27h 38m
Toronto Pearson Intl
Mon 6/8
9:50 am-11:39 pm
1 stop13h 49m
$396
KnoxvilleToronto
TYS - YYZ
TYSYYZ
Knoxville McGhee Tyson
Mon 10/12
9:13 am-9:19 pm
1 stop12h 06m
Toronto Pearson Intl
Fri 10/16
8:10 am-9:43 am
1 stop25h 33m
$398
KnoxvilleToronto
TYS - YYZ
TYSYYZ
Knoxville McGhee Tyson
Fri 6/5
7:27 pm-4:45 pm
1 stop21h 18m
Toronto Pearson Intl
Mon 6/15
9:50 am-11:34 pm
1 stop13h 44m
$410
KnoxvilleToronto
TYS - YYZ
TYSYYZ
Knoxville McGhee Tyson
Thu 5/14
9:40 pm-10:05 pm
2 stops24h 25m
Toronto Pearson Intl
Sun 5/17
9:30 am-8:50 pm
1 stop11h 20m
$416
Quickest round-trip
KnoxvilleToronto
TYS - YYZ
TYSYYZ
Knoxville McGhee Tyson
Thu 5/14
7:00 am-11:49 am
1 stop4h 49m
Toronto Pearson Intl
Sun 5/17
10:15 am-4:54 pm
1 stop6h 39m
$566
Cheapest one-way
KnoxvilleToronto
TYS - YYZ
TYSYYZ
Knoxville McGhee Tyson
Sun 5/31
3:46 pm-5:09 pm
3 stops25h 23m
$182
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 May 1, 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.
Boarding
7.7
Food
6.6
Crew
8.1
Overall
7.4
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Boarding
7.7
Food
6.6
Crew
8.1
Overall
7.4
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Boarding
7.7
Food
6.6
Crew
8.1
Overall
7.4
Comfort
7.3
Entertainment
7.1
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 May 1, 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 May 1, 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 May 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$427 | Average$683 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$545 | Average$640 | FlexibilityNo cancel fee | On-time69% |