$144+ 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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — YYZ
Sep 26 — Oct 31
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 27, 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 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/26. 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 10/239:28 pm -
1 stop16h 57m
Tue 10/279:20 am -
1 stop7h 54m
Deal found 8/26![Multiple Airlines logo]()
$301
This Kiwi.com deal was found by Cheapflights users on 8/24. 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 10/239:28 pm -
1 stop17h 02m
Fri 10/309:15 am -
2 stops24h 50m
Deal found 8/24![Multiple Airlines logo]()
$352
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 11/138:35 am -
1 stop15h 15m
Sun 11/159:15 am -
1 stop11h 28m
Deal found 8/25![Multiple Airlines logo]()
$358
This Kiwi.com deal was found by Cheapflights users on 8/23. 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 -
1 stop27h 34m
Sat 9/197:25 am -
1 stop7h 36m
Deal found 8/23![Multiple Airlines logo]()
$368
This Kiwi.com deal was found by Cheapflights users on 8/26. 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 9/2410:54 am -
1 stop10h 01m
Thu 10/19:30 am -
1 stop22h 45m
Deal found 8/26![Multiple Airlines logo]()
$374
This Kiwi.com deal was found by Cheapflights users on 8/26. 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 9/2410:54 am -
1 stop10h 01m
Sat 9/266:30 am -
1 stop9h 23m
Deal found 8/26![Multiple Airlines logo]()
$377
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 11/55:37 pm -
1 stop29h 18m
Mon 11/96:30 am -
1 stop7h 01m
Deal found 8/25![Multiple Airlines logo]()
$391
This Kiwi.com deal was found by Cheapflights users on 8/26. 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 9/129:30 am -
1 stop24h 34m
Deal found 8/26![Multiple Airlines logo]()
$398
This Kiwi.com deal was found by Cheapflights users on 8/22. 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 11/106:08 pm -
1 stop28h 47m
Sun 11/154:20 pm -
1 stop27h 34m
Deal found 8/22![Multiple Airlines logo]()
$420
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 27, 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 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 11/55:37 pm -
1 stop29h 18m
Mon 11/96:30 am -
1 stop7h 01m
Deal found 8/25![Multiple Airlines logo]()
$391
This United Airlines deal was found by Cheapflights users on 8/26. 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 10/315:45 am -
1 stop12h 12m
Wed 11/410:00 am -
1 stop13h 59m
Deal found 8/26![United Airlines logo]()
$535
This Kiwi.com deal was found by Cheapflights users on 8/26. 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 9/129:30 am -
1 stop24h 34m
Deal found 8/26![Multiple Airlines logo]()
$398
This Kiwi.com deal was found by Cheapflights users on 8/22. 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 11/106:08 pm -
1 stop28h 47m
Sun 11/154:20 pm -
1 stop27h 34m
Deal found 8/22![Multiple Airlines logo]()
$420
This United Airlines deal was found by Cheapflights users on 8/24. 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 8/24![United Airlines logo]()
$548
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 11/137:10 am -
2 stops11h 55m
Sun 11/159:15 am -
1 stop11h 28m
Deal found 8/25![Multiple Airlines logo]()
$463
This Kiwi.com deal was found by Cheapflights users on 8/22. 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 9/218:00 am -
1 stop12h 50m
Mon 9/289:50 am -
1 stop6h 53m
Deal found 8/22![Multiple Airlines logo]()
$469
This Kiwi.com deal was found by Cheapflights users on 8/22. 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 -
2 stops21h 34m
Sun 9/206:15 am -
1 stop5h 03m
Deal found 8/22![Multiple Airlines logo]()
$488
This Kiwi.com deal was found by Cheapflights users on 8/26. 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 10/16:15 am -
1 stop14h 40m
Sat 10/107:00 am -
1 stop25h 30m
Deal found 8/26![Multiple Airlines logo]()
$513
This Kiwi.com deal was found by Cheapflights users on 8/23. 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 9/811:45 am -
1 stop21h 08m
Mon 9/217:45 am -
1 stop12h 54m
Deal found 8/23![Multiple Airlines logo]()
$524
Last-minute flights from Knoxville to Niagara FallsDiscover last-minute flight deals from Knoxville to Niagara Falls. Data last updated August 27, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Niagara Falls. Data last updated August 27, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/26. 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 9/129:30 am -
1 stop24h 34m
Deal found 8/26![Multiple Airlines logo]()
$398
This Kiwi.com deal was found by Cheapflights users on 8/24. 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
Sun 9/204:50 pm -
1 stop27h 49m
Deal found 8/24![Multiple Airlines logo]()
$425
This Kiwi.com deal was found by Cheapflights users on 8/23. 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 -
1 stop27h 34m
Sat 9/197:25 am -
1 stop7h 36m
Deal found 8/23![Multiple Airlines logo]()
$368
This Kiwi.com deal was found by Cheapflights users on 8/26. 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 9/1710:54 am -
1 stop10h 01m
Sun 9/2012:55 pm -
1 stop24h 32m
Deal found 8/26![Multiple Airlines logo]()
$428
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 -
1 stop15h 15m
Sun 9/204:50 pm -
1 stop27h 49m
Deal found 8/25![Multiple Airlines logo]()
$429
This Kiwi.com deal was found by Cheapflights users on 8/26. 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 -
1 stop15h 15m
Thu 9/246:30 am -
1 stop9h 57m
Deal found 8/26![Multiple Airlines logo]()
$448
This Kiwi.com deal was found by Cheapflights users on 8/22. 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 9/218:00 am -
1 stop12h 50m
Mon 9/284:45 pm -
2 stops45h 57m
Deal found 8/22![Multiple Airlines logo]()
$422
This Kiwi.com deal was found by Cheapflights users on 8/26. 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 9/2410:54 am -
1 stop10h 01m
Thu 10/19:30 am -
1 stop22h 45m
Deal found 8/26![Multiple Airlines logo]()
$374
This Kiwi.com deal was found by Cheapflights users on 8/26. 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 9/2410:54 am -
1 stop10h 01m
Sat 9/266:30 am -
1 stop9h 23m
Deal found 8/26![Multiple Airlines logo]()
$377
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 27, 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 27, 2026.
This Trip.com deal was found by Cheapflights users on 8/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2410:54 am -
1 stop10h 01m
Deal found 8/24![Multiple Airlines logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 10/144:14 pm -
1 stop21h 51m
Deal found 8/25![Multiple Airlines logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 8/24. 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 10/86:15 am -
1 stop7h 50m
Deal found 8/24![Multiple Airlines logo]()
$162
This FlightHub deal was found by Cheapflights users on 8/23. 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.
Tue 9/16:00 am -
1 stop6h 23m
Deal found 8/23![WestJet logo]()
$322
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 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $301 (Kiwi.com) |
One-way from | $144 (Trip.com) |
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 7,457,451 searches. Data last updated August 27, 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 11/5
5:37 pm-10:55 pm
1 stop29h 18m
Toronto Pearson Intl
Mon 11/9
6:30 am-1:31 pm
1 stop7h 01m
$391
KnoxvilleToronto
TYS Knoxville McGhee Tyson - YYZ Toronto Pearson Intl
TYSYYZ
Knoxville McGhee Tyson
Wed 9/9
10:54 am-2:05 pm
1 stop27h 11m
Toronto Pearson Intl
Sat 9/12
9:30 am-10:04 am
1 stop24h 34m
$398
KnoxvilleToronto
TYS Knoxville McGhee Tyson - YYZ Toronto Pearson Intl
TYSYYZ
Knoxville McGhee Tyson
Tue 11/10
6:08 pm-10:55 pm
1 stop28h 47m
Toronto Pearson Intl
Sun 11/15
4:20 pm-7:54 pm
1 stop27h 34m
$420
KnoxvilleToronto
TYS Knoxville McGhee Tyson - YYZ Toronto Pearson Intl
TYSYYZ
Knoxville McGhee Tyson
Fri 11/13
7:10 am-7:05 pm
2 stops11h 55m
Toronto Pearson Intl
Sun 11/15
9:15 am-8:43 pm
1 stop11h 28m
$463
KnoxvilleToronto
TYS Knoxville McGhee Tyson - YYZ Toronto Pearson Intl
TYSYYZ
Knoxville McGhee Tyson
Mon 9/21
8:00 am-8:50 pm
1 stop12h 50m
Toronto Pearson Intl
Mon 9/28
9:50 am-4:43 pm
1 stop6h 53m
$469
KnoxvilleToronto
TYS Knoxville McGhee Tyson - YYZ Toronto Pearson Intl
TYSYYZ
Knoxville McGhee Tyson
Thu 9/17
5:21 pm-2:55 pm
2 stops21h 34m
Toronto Pearson Intl
Sun 9/20
6:15 am-11:18 am
1 stop5h 03m
$488
KnoxvilleToronto
TYS Knoxville McGhee Tyson - YYZ Toronto Pearson Intl
TYSYYZ
Knoxville McGhee Tyson
Thu 10/1
6:15 am-8:55 pm
1 stop14h 40m
Toronto Pearson Intl
Sat 10/10
7:00 am-8:30 am
1 stop25h 30m
$513
KnoxvilleToronto
TYS Knoxville McGhee Tyson - YYZ Toronto Pearson Intl
TYSYYZ
Knoxville McGhee Tyson
Tue 9/8
11:45 am-8:53 am
1 stop21h 08m
Toronto Pearson Intl
Mon 9/21
7:45 am-8:39 pm
1 stop12h 54m
$524
KnoxvilleToronto
TYS Knoxville McGhee Tyson - YYZ Toronto Pearson Intl
TYSYYZ
Knoxville McGhee Tyson
Sat 10/31
5:45 am-5:57 pm
1 stop12h 12m
Toronto Pearson Intl
Wed 11/4
10:00 am-11:59 pm
1 stop13h 59m
$535
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
$548
Showing 1-10 of 13 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.
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 August 27, 2026.
Read through reviews of airlines operating flights from Knoxville to Niagara Falls, such as American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.5
Comfort
7.2
Entertainment
6.8
Crew
7.9
Overall
7.1
Food
6.4
Reviews
1 / 20
10.0
ExcellentLinda,Jul 2026
ROA - CLT
Boarding
7.5
Comfort
7.2
Entertainment
6.8
Crew
7.9
Overall
7.1
Food
6.4
Reviews
1 / 20
10.0
ExcellentLinda,Jul 2026
ROA - CLT
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 August 27, 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 August 27, 2026.
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Knoxville to Niagara Falls flights
Consider these flights traveling from Knoxville to Niagara Falls.
Top airline flying from Knoxville to Niagara Falls
Discover the top airline 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 7,457,451 searches. Data last updated August 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$427 | Average$683 | FlexibilityNo cancel fee | On-time71% |