$191+ Cheap flights from Knoxville (TYS) to Niagara Falls, 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — YYZ
Sep 13 — Sep 201
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 August 14, 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 August 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Thu 9/175:21 pm -
1 stop27h 34m
Thu 9/246:30 am -
1 stop9h 57m
Deal found 8/11![Multiple Airlines logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 9/910:54 am -
1 stop27h 11m
Sat 9/127:25 am -
1 stop7h 36m
Deal found 8/10![Multiple Airlines logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
Fri 10/910:07 pm -
1 stop25h 28m
Tue 10/136:30 am -
1 stop11h 44m
Deal found 8/13![Multiple Airlines logo]()
$367
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 9/69:30 am -
2 stops12h 34m
Thu 9/101:30 pm -
1 stop20h 34m
Deal found 8/11![Multiple Airlines logo]()
$384
This Kiwi.com deal was found by Cheapflights users on 8/9. 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.
Mon 8/318:00 am -
1 stop12h 50m
Thu 9/36:30 am -
1 stop9h 37m
Deal found 8/9![Multiple Airlines logo]()
$393
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 9/1011:34 am -
1 stop27h 21m
Sat 9/126:15 am -
1 stop4h 29m
Deal found 8/10![Multiple Airlines logo]()
$394
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 August 14, 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 August 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Thu 9/175:21 pm -
1 stop27h 34m
Thu 9/246:30 am -
1 stop9h 57m
Deal found 8/11![Multiple Airlines logo]()
$345
This United Airlines deal was found by Cheapflights users on 8/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/34:16 pm -
1 stop6h 07m
Wed 10/710:45 am -
1 stop4h 50m
Deal found 8/12![United Airlines logo]()
$505
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 8/305:40 am -
2 stops30h 15m
Wed 9/26:10 am -
1 stop4h 20m
Deal found 8/10![WestJet logo]()
$506
This American Airlines deal was found by Cheapflights users on 8/10. 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.
Sun 8/306:32 pm -
1 stop5h 14m
Wed 9/23:45 pm -
1 stop7h 13m
Deal found 8/10![American Airlines logo]()
$522
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
Fri 10/910:07 pm -
1 stop25h 28m
Tue 10/136:30 am -
1 stop11h 44m
Deal found 8/13![Multiple Airlines logo]()
$367
This Kiwi.com deal was found by Cheapflights users on 8/9. 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.
Fri 9/1110:54 am -
1 stop27h 11m
Sun 9/136:15 am -
1 stop5h 08m
Deal found 8/9![Multiple Airlines logo]()
$393
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 9/105:21 pm -
2 stops21h 34m
Sun 9/1312:55 pm -
1 stop24h 32m
Deal found 8/12![Multiple Airlines logo]()
$422
This American Airlines deal was found by Cheapflights users on 8/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/187:15 am -
1 stop6h 28m
Thu 10/227:22 am -
1 stop6h 53m
Deal found 8/12![American Airlines logo]()
$539
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 9/276:08 pm -
2 stops27h 47m
Sun 10/46:15 am -
1 stop5h 03m
Deal found 8/13![Multiple Airlines logo]()
$482
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 8/308:10 am -
2 stops51h 50m
Wed 9/22:31 pm -
1 stop6h 58m
Deal found 8/10![Multiple Airlines logo]()
$513
Last-minute flights from Knoxville to Niagara FallsDiscover last-minute flight deals from Knoxville to Niagara Falls. Data last updated August 14, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Niagara Falls. Data last updated August 14, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/9. 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.
Mon 8/318:00 am -
1 stop12h 50m
Thu 9/36:30 am -
1 stop9h 37m
Deal found 8/9![Multiple Airlines logo]()
$393
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 9/69:30 am -
2 stops12h 34m
Thu 9/101:30 pm -
1 stop20h 34m
Deal found 8/11![Multiple Airlines logo]()
$384
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 9/910:54 am -
1 stop27h 11m
Sat 9/127:25 am -
1 stop7h 36m
Deal found 8/10![Multiple Airlines logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 9/1011:34 am -
1 stop27h 21m
Sat 9/126:15 am -
1 stop4h 29m
Deal found 8/10![Multiple Airlines logo]()
$394
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 9/105:21 pm -
2 stops21h 34m
Sun 9/1312:55 pm -
1 stop24h 32m
Deal found 8/12![Multiple Airlines logo]()
$422
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Thu 9/175:21 pm -
1 stop27h 34m
Thu 9/246:30 am -
1 stop9h 57m
Deal found 8/11![Multiple Airlines logo]()
$344
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 August 14, 2026.
Search for one-way flight options from Knoxville to Niagara Falls. Find affordable one-way fares based on user searches. Data last updated August 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
Fri 9/118:20 am -
1 stop15h 15m
Deal found 8/13![Multiple Airlines logo]()
$191
This FlightHub deal was found by Cheapflights users on 8/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2811:38 am -
1 stop5h 46m
Deal found 8/12![WestJet logo]()
$228
This Justfly.com deal was found by Cheapflights users on 8/9. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/122:30 pm -
2 stops21h 25m
Deal found 8/9![WestJet logo]()
$251
This United Airlines deal was found by Cheapflights users on 8/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/285:45 am -
2 stops11h 23m
Deal found 8/12![United Airlines logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 8/281:55 pm -
3 stops30h 00m
Deal found 8/12![Multiple Airlines logo]()
$293
This American Airlines deal was found by Cheapflights users on 8/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/124:52 pm -
1 stop5h 48m
Deal found 8/9![American Airlines logo]()
$294
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 August 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $344 (Kiwi.com) |
One-way from | $191 (Kiwi.com) |
Popular in | December |
Cheapest in | July |
Average price | $679 |
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 August 14, 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 Knoxville McGhee Tyson - YYZ Toronto Pearson Intl
TYSYYZ
Knoxville McGhee Tyson
Thu 9/17
5:21 pm-8:55 pm
1 stop27h 34m
Toronto Pearson Intl
Thu 9/24
6:30 am-4:27 pm
1 stop9h 57m
$345
KnoxvilleToronto
TYS Knoxville McGhee Tyson - YYZ Toronto Pearson Intl
TYSYYZ
Knoxville McGhee Tyson
Fri 10/9
10:07 pm-11:35 pm
1 stop25h 28m
Toronto Pearson Intl
Tue 10/13
6:30 am-6:14 pm
1 stop11h 44m
$367
KnoxvilleToronto
TYS Knoxville McGhee Tyson - YYZ Toronto Pearson Intl
TYSYYZ
Knoxville McGhee Tyson
Fri 9/11
10:54 am-2:05 pm
1 stop27h 11m
Toronto Pearson Intl
Sun 9/13
6:15 am-11:23 am
1 stop5h 08m
$393
KnoxvilleToronto
TYS Knoxville McGhee Tyson - YYZ Toronto Pearson Intl
TYSYYZ
Knoxville McGhee Tyson
Thu 9/10
5:21 pm-2:55 pm
2 stops21h 34m
Toronto Pearson Intl
Sun 9/13
12:55 pm-1:27 pm
1 stop24h 32m
$422
KnoxvilleToronto
TYS Knoxville McGhee Tyson - YYZ Toronto Pearson Intl
TYSYYZ
Knoxville McGhee Tyson
Sun 9/27
6:08 pm-9:55 pm
2 stops27h 47m
Toronto Pearson Intl
Sun 10/4
6:15 am-11:18 am
1 stop5h 03m
$482
Quickest round-trip
KnoxvilleToronto
TYS Knoxville McGhee Tyson - YYZ Toronto Pearson Intl
TYSYYZ
Knoxville McGhee Tyson
Sat 10/3
4:16 pm-10:23 pm
1 stop6h 07m
Toronto Pearson Intl
Wed 10/7
10:45 am-3:35 pm
1 stop4h 50m
$505
KnoxvilleToronto
TYS Knoxville McGhee Tyson - YYZ Toronto Pearson Intl
TYSYYZ
Knoxville McGhee Tyson
Sun 8/30
5:40 am-11:55 am
2 stops30h 15m
Toronto Pearson Intl
Wed 9/2
6:10 am-10:30 am
1 stop4h 20m
$506
KnoxvilleToronto
TYS Knoxville McGhee Tyson - YYZ Toronto Pearson Intl
TYSYYZ
Knoxville McGhee Tyson
Sun 8/30
8:10 am-12:00 pm
2 stops51h 50m
Toronto Pearson Intl
Wed 9/2
2:31 pm-9:29 pm
1 stop6h 58m
$513
KnoxvilleToronto
TYS Knoxville McGhee Tyson - YYZ Toronto Pearson Intl
TYSYYZ
Knoxville McGhee Tyson
Sun 8/30
6:32 pm-11:46 pm
1 stop5h 14m
Toronto Pearson Intl
Wed 9/2
3:45 pm-10:58 pm
1 stop7h 13m
$522
KnoxvilleToronto
TYS Knoxville McGhee Tyson - YYZ Toronto Pearson Intl
TYSYYZ
Knoxville McGhee Tyson
Sun 10/18
7:15 am-1:43 pm
1 stop6h 28m
Toronto Pearson Intl
Thu 10/22
7:22 am-2:15 pm
1 stop6h 53m
$539
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
No data available for this route at this time. Please check back soon.
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