$185+ 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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — YYZ
May 1 — May 81
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 April 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 April 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/28. 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.
Sat 6/277:10 am
TYS
- YYZ
1 stop12h 25m
Multiple Airlines
Mon 7/67:45 am
YYZ
- TYS
1 stop15h 48m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$368
This Kiwi.com deal was found by Cheapflights users on 3/27. 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 6/127:10 am
TYS
- YYZ
1 stop12h 25m
Multiple Airlines
Sun 6/149:50 am
YYZ
- TYS
1 stop29h 17m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$371
This Kiwi.com deal was found by Cheapflights users on 3/28. 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 5/151:15 pm
TYS
- YYZ
1 stop10h 20m
Multiple Airlines
Sun 5/178:00 pm
YYZ
- TYS
1 stop21h 30m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$377
This Kiwi.com deal was found by Cheapflights users on 3/28. 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.
Thu 8/67:30 am
TYS
- YYZ
1 stop28h 30m
Multiple Airlines
Mon 8/107:45 am
YYZ
- TYS
1 stop14h 59m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$399
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Wed 4/294:25 pm
TYS
- YYZ
1 stop22h 28m
Multiple Airlines
Wed 5/67:45 am
YYZ
- TYS
1 stop28h 39m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$401
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 7/207:10 am
TYS
- YYZ
1 stop28h 25m
Multiple Airlines
Thu 7/237:45 am
YYZ
- TYS
1 stop14h 39m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$409
This Kiwi.com deal was found by Cheapflights users on 3/30. 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
1 stop23h 15m
Multiple Airlines
Thu 5/216:30 am
YYZ
- TYS
1 stop8h 26m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$413
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 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 April 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/28. 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 5/151:15 pm
TYS
- YYZ
1 stop10h 20m
Multiple Airlines
Sun 5/178:00 pm
YYZ
- TYS
1 stop21h 30m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$377
This American Airlines deal was found by Cheapflights users on 3/31. 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.
Tue 4/286:00 am
TYS
- YYZ
1 stop10h 45m
American Airlines
Tue 5/1211:10 am
YYZ
- TYS
1 stop10h 30m
American Airlines
Deal found 3/31![American Airlines logo]()
$440
This American Airlines deal was found by Cheapflights users on 4/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:00 am
TYS
- YYZ
1 stop10h 45m
American Airlines
Wed 5/611:10 am
YYZ
- TYS
1 stop10h 30m
American Airlines
Deal found 4/1![American Airlines logo]()
$440
This Kiwi.com deal was found by Cheapflights users on 4/1. 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.
Wed 4/294:25 pm
TYS
- YYZ
2 stops19h 10m
Multiple Airlines
Wed 5/69:30 am
YYZ
- TYS
1 stop29h 35m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$462
This Kiwi.com deal was found by Cheapflights users on 3/27. 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 6/267:10 am
TYS
- YYZ
1 stop12h 25m
Multiple Airlines
Tue 7/79:30 am
YYZ
- TYS
2 stops26h 45m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$468
This American Airlines deal was found by Cheapflights users on 3/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/25:37 am
TYS
- YYZ
1 stop11h 08m
American Airlines
Wed 5/611:10 am
YYZ
- TYS
1 stop10h 30m
American Airlines
Deal found 3/30![American Airlines logo]()
$474
This American Airlines deal was found by Cheapflights users on 3/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/116:00 am
TYS
- YYZ
1 stop10h 45m
American Airlines
Mon 5/1811:10 am
YYZ
- TYS
1 stop10h 30m
American Airlines
Deal found 3/27![American Airlines logo]()
$479
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 5/211:56 am
TYS
- YYZ
1 stop27h 04m
Multiple Airlines
Wed 5/64:45 pm
YYZ
- TYS
2 stops28h 05m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$510
This American Airlines deal was found by Cheapflights users on 3/30. 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 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 3/30![American Airlines logo]()
$495
Last-minute flights from Knoxville to Niagara FallsDiscover last-minute flight deals from Knoxville to Niagara Falls. Data last updated April 1, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Niagara Falls. Data last updated April 1, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 3/27. 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.
Wed 4/84:25 pm
TYS
- YYZ
2 stops21h 55m
Multiple Airlines
Sun 4/128:20 pm
YYZ
- TYS
1 stop21h 10m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$449
This American Airlines deal was found by Cheapflights users on 3/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/136:30 am
TYS
- YYZ
1 stop10h 34m
American Airlines
Fri 4/177:15 pm
YYZ
- TYS
1 stop4h 40m
American Airlines
Deal found 3/29![American Airlines logo]()
$546
This Air Canada deal was found by Cheapflights users on 3/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/132:25 pm
TYS
- YYZ
2 stops7h 10m
Air Canada
Fri 4/172:30 pm
YYZ
- TYS
1 stop5h 12m
Air Canada
Deal found 3/29![Air Canada logo]()
$627
This American Airlines deal was found by Cheapflights users on 3/28. 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 4/156:00 am
TYS
- YYZ
1 stop5h 54m
American Airlines
Wed 4/2911:10 am
YYZ
- TYS
1 stop10h 30m
American Airlines
Deal found 3/28![American Airlines logo]()
$499
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Wed 4/224:25 pm
TYS
- YYZ
1 stop21h 40m
Multiple Airlines
Thu 4/238:30 pm
YYZ
- TYS
1 stop15h 55m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$470
This American Airlines deal was found by Cheapflights users on 3/31. 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.
Tue 4/286:00 am
TYS
- YYZ
1 stop10h 45m
American Airlines
Tue 5/1211:10 am
YYZ
- TYS
1 stop10h 30m
American Airlines
Deal found 3/31![American Airlines logo]()
$440
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Wed 4/294:25 pm
TYS
- YYZ
1 stop22h 28m
Multiple Airlines
Wed 5/67:45 am
YYZ
- TYS
1 stop28h 39m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$401
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 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 April 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 5/151:15 pm
TYS
- YYZ
1 stop10h 20m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 5/257:24 pm
TYS
- YYZ
3 stops45h 45m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$232
This Delta deal was found by Cheapflights users on 3/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/85:40 am
TYS
- YYZ
1 stop4h 39m
Delta
Deal found 3/29![Delta logo]()
$236
This American Airlines deal was found by Cheapflights users on 3/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/256:07 pm
TYS
- YYZ
1 stop4h 23m
American Airlines
Deal found 3/29![American Airlines logo]()
$241
This American Airlines deal was found by Cheapflights users on 3/31. 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.
Mon 7/206:07 pm
TYS
- YYZ
1 stop4h 24m
American Airlines
Deal found 3/31![American Airlines logo]()
$244
This Air Canada deal was found by Cheapflights users on 3/31. 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 3/31![Air Canada logo]()
$287
This United Airlines deal was found by Cheapflights users on 3/27. 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.
Mon 7/205:45 am
TYS
- YYZ
2 stops9h 23m
United Airlines
Deal found 3/27![United Airlines logo]()
$300
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 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $368 (Kiwi.com) |
One-way from | $185 (Kiwi.com) |
Popular in | August |
Cheapest in | April |
Average price | $471 |
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 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 5/15
1:15 pm-11:35 pm
1 stop10h 20m
Toronto Pearson Intl
Sun 5/17
8:00 pm-5:30 pm
1 stop21h 30m
$377
Quickest round-trip
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
$440
KnoxvilleToronto
TYS - YYZ
TYSYYZ
Knoxville McGhee Tyson
Wed 4/29
6:00 am-4:45 pm
1 stop10h 45m
Toronto Pearson Intl
Wed 5/6
11:10 am-9:40 pm
1 stop10h 30m
$440
KnoxvilleToronto
TYS - YYZ
TYSYYZ
Knoxville McGhee Tyson
Wed 4/29
4:25 pm-11:35 am
2 stops19h 10m
Toronto Pearson Intl
Wed 5/6
9:30 am-3:05 pm
1 stop29h 35m
$462
KnoxvilleToronto
TYS - YYZ
TYSYYZ
Knoxville McGhee Tyson
Fri 6/26
7:10 am-7:35 pm
1 stop12h 25m
Toronto Pearson Intl
Tue 7/7
9:30 am-12:15 pm
2 stops26h 45m
$468
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
$474
KnoxvilleToronto
TYS - YYZ
TYSYYZ
Knoxville McGhee Tyson
Mon 5/11
6:00 am-4:45 pm
1 stop10h 45m
Toronto Pearson Intl
Mon 5/18
11:10 am-9:40 pm
1 stop10h 30m
$479
KnoxvilleToronto
TYS - YYZ
TYSYYZ
Knoxville McGhee Tyson
Sat 5/9
5:37 am-4:45 pm
1 stop11h 08m
Toronto Pearson Intl
Sat 5/16
11:10 am-9:50 pm
1 stop10h 40m
$495
KnoxvilleToronto
TYS - YYZ
TYSYYZ
Knoxville McGhee Tyson
Sat 5/2
11:56 am-3:00 pm
1 stop27h 04m
Toronto Pearson Intl
Wed 5/6
4:45 pm-8:50 pm
2 stops28h 05m
$510
Cheapest one-way
KnoxvilleToronto
TYS - YYZ
TYSYYZ
Knoxville McGhee Tyson
Fri 5/15
1:15 pm-11:35 pm
1 stop10h 20m
$185
Showing 1-10 of 16 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 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
Comfort
7.3
Crew
8.1
Entertainment
7.1
Overall
7.4
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Boarding
7.7
Food
6.6
Comfort
7.3
Crew
8.1
Entertainment
7.1
Overall
7.4
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Boarding
7.7
Food
6.6
Comfort
7.3
Crew
8.1
Entertainment
7.1
Overall
7.4
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
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 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 April 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 April 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$372 | Average$683 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$554 | Average$640 | FlexibilityNo cancel fee | On-time69% |