How long is the flight from Knoxville to Niagara Falls?

American Airlines can get you from Knoxville to Niagara Falls in just under 10h 26m. Your travel time can differ by up to . The distance from Knoxville to Niagara Falls is about 591 mi.

In terms of precipitation, rainfall in Niagara Falls ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Niagara Falls when rainfall is around 2.0 in.

If weather is an important factor for your trip to Niagara Falls, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

What are the most popular airlines that fly from Knoxville to Niagara Falls?

When booking a flight from Knoxville to Niagara Falls, you may want to consider flying on American Airlines, United Airlines or Delta as they are the most popular for this route.

What airport do you fly from for flights from Knoxville to Niagara Falls?

For a flight from Knoxville to Niagara Falls, you will be flying from McGhee Tyson. Knoxville McGhee Tyson (TYS) is just 11.3 mi from the center of the city. McGhee Tyson is the only Knoxville airport and it handles 0 outbound flights to Niagara Falls per day. 3 airlines have flights to Niagara Falls from Knoxville McGhee Tyson on a regular basis.

Can I find deals for flights from Knoxville to Niagara Falls that include hotel bookings?

Yes. In addition to deals on Knoxville to Niagara Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Knoxville to Niagara Falls?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Niagara Falls.

Can I find deals for business class flights from Knoxville to Niagara Falls?

Yes. Cheapflights offers flight deals from Knoxville to Niagara Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$119+ Flights from Knoxville to Niagara Falls, ON

Q: How much does it cost to fly round-trip from Knoxville to Niagara Falls?

Airfare is below average for this route at the moment. Knoxville to Niagara Falls flights typically cost between $559 and $715 in January. The cheapest round-trip price found within the last 3 days was $333 on Multiple Airlines (Jan 15-Jan 22).

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Cheap flight deals from Knoxville to Niagara Falls

Cheapest flights from Knoxville to Niagara Falls
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 December 18, 2025.

Mon 12/226:47 pmTYS - YYZ

1 stop19h 33mMultiple Airlines

Mon 1/57:10 amYYZ - TYS

1 stop14h 38mMultiple Airlines

Deal found 12/16

$353

Sun 12/212:56 pmTYS - YYZ

1 stop20h 47mMultiple Airlines

Tue 1/611:15 amYYZ - TYS

1 stop7h 17mMultiple Airlines

Deal found 12/17

$558

Fri 12/266:00 amTYS - YYZ

1 stop8h 20mMultiple Airlines

Tue 12/307:10 amYYZ - TYS

2 stops34h 07mMultiple Airlines

Deal found 12/18

$834

Sun 12/2110:02 amTYS - YYZ

1 stop7h 10mWestJet

Tue 1/67:45 amYYZ - TYS

1 stop4h 28mWestJet

Deal found 12/17

$925

Sun 12/2111:00 amTYS - YYZ

2 stops10h 24mUnited Airlines

Tue 1/69:30 amYYZ - TYS

2 stops11h 22mUnited Airlines

Deal found 12/17

$1,049

Best flights from Knoxville to Niagara Falls
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 December 18, 2025.

Thu 1/159:29 amTYS - YYZ

1 stop29h 11mMultiple Airlines

Thu 1/2211:30 pmYYZ - TYS

2 stops35h 39mMultiple Airlines

Deal found 12/16

$333

Fri 2/67:54 amTYS - YYZ

1 stop10h 26mAmerican Airlines

Mon 2/911:35 amYYZ - TYS

1 stop10h 34mAmerican Airlines

Deal found 12/17

$372

Sat 1/315:59 pmTYS - YYZ

2 stops26h 12mMultiple Airlines

Sat 2/73:40 pmYYZ - TYS

1 stop16h 59mMultiple Airlines

Deal found 12/17

$333

Tue 1/65:37 pmTYS - YYZ

1 stop18h 09mMultiple Airlines

Tue 1/203:40 pmYYZ - TYS

1 stop24h 17mMultiple Airlines

Deal found 12/16

$364

Thu 1/156:00 amTYS - YYZ

1 stop10h 35mAmerican Airlines

Thu 1/2210:59 amYYZ - TYS

1 stop10h 45mAmerican Airlines

Deal found 12/18

$456

Fri 1/912:55 pmTYS - YYZ

1 stop11h 16mMultiple Airlines

Fri 1/167:10 amYYZ - TYS

1 stop10h 18mMultiple Airlines

Deal found 12/16

$384

Thu 5/217:15 amTYS - YYZ

1 stop16h 40mMultiple Airlines

Thu 5/286:30 amYYZ - TYS

1 stop8h 26mMultiple Airlines

Deal found 12/16

$470

Fri 5/227:10 amTYS - YYZ

2 stops11h 04mMultiple Airlines

Thu 5/286:30 amYYZ - TYS

1 stop8h 26mMultiple Airlines

Deal found 12/16

$473

Fri 5/227:10 amTYS - YYZ

2 stops11h 04mMultiple Airlines

Wed 5/279:35 amYYZ - TYS

1 stop8h 24mMultiple Airlines

Deal found 12/16

$477

Last-minute flights from Knoxville to Niagara Falls
Discover last-minute flight deals from Knoxville to Niagara Falls. Data last updated December 18, 2025 and is based on user searches.

Mon 12/226:47 pmTYS - YYZ

1 stop19h 33mMultiple Airlines

Mon 1/57:10 amYYZ - TYS

1 stop14h 38mMultiple Airlines

Deal found 12/16

$353

Tue 1/65:37 pmTYS - YYZ

1 stop18h 09mMultiple Airlines

Tue 1/203:40 pmYYZ - TYS

1 stop24h 17mMultiple Airlines

Deal found 12/16

$364

Tue 1/66:00 amTYS - YYZ

1 stop10h 35mAmerican Airlines

Tue 1/2010:59 amYYZ - TYS

1 stop10h 45mAmerican Airlines

Deal found 12/16

$475

Fri 1/912:55 pmTYS - YYZ

1 stop11h 16mMultiple Airlines

Fri 1/167:10 amYYZ - TYS

1 stop10h 18mMultiple Airlines

Deal found 12/16

$384

Thu 1/159:29 amTYS - YYZ

1 stop29h 11mMultiple Airlines

Thu 1/2211:30 pmYYZ - TYS

2 stops35h 39mMultiple Airlines

Deal found 12/16

$333

Thu 1/156:00 amTYS - YYZ

1 stop10h 35mAmerican Airlines

Thu 1/2210:59 amYYZ - TYS

1 stop10h 45mAmerican Airlines

Deal found 12/18

$456

Sat 1/315:59 pmTYS - YYZ

3 stops36h 44mMultiple Airlines

Sat 2/77:15 amYYZ - TYS

2 stops25h 24mMultiple Airlines

Deal found 12/17

$392

Sat 1/317:54 amTYS - YYZ

1 stop8h 09mAmerican Airlines

Sat 2/71:14 pmYYZ - TYS

1 stop8h 40mAmerican Airlines

Deal found 12/17

$405

One-way flights from Knoxville to Niagara Falls
Search for one-way flight options from Knoxville to Niagara Falls. Find affordable one-way fares based on user searches. Data last updated December 18, 2025.

Wed 3/43:54 pmTYS - YYZ

1 stop7h 26mMultiple Airlines

Deal found 12/16

$119

Wed 3/46:00 amTYS - YYZ

1 stop5h 52mAmerican Airlines

Deal found 12/17

$272

Wed 3/49:40 amTYS - YYZ

2 stops11h 06mAir Canada

Deal found 12/16

$357

Wed 3/410:53 amTYS - YYZ

2 stops12h 53mUnited Airlines

Deal found 12/16

$371

Find flight deals from Knoxville to Niagara Falls

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$333 (Kiwi.com)
One-way from	$119 (Kiwi.com)
Popular in	August
Cheapest in	March
Average price	$658

Provider with most accurate pricing for Knoxville McGhee Tyson-Toronto (YTO) flight deals.

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Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Toronto (YTO) flights.

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From Knoxville McGhee Tyson to Niagara Falls

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One-way flight from Knoxville McGhee Tyson to Niagara Falls

Search Deals

Highest demand for flights based on searches. 25% potential increase in price ($205 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($28 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

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

Price

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Thu 1/15

9:29 am-2:40 pm

1 stop29h 11m

Toronto Pearson Intl

Thu 1/22

11:30 pm-11:09 am

2 stops35h 39m

$333

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Sat 1/31

5:59 pm-8:11 pm

2 stops26h 12m

Toronto Pearson Intl

Sat 2/7

3:40 pm-8:39 am

1 stop16h 59m

$333

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Tue 1/6

5:37 pm-11:46 am

1 stop18h 09m

Toronto Pearson Intl

Tue 1/20

3:40 pm-3:57 pm

1 stop24h 17m

$364

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Fri 2/6

7:54 am-6:20 pm

1 stop10h 26m

Toronto Pearson Intl

Mon 2/9

11:35 am-10:09 pm

1 stop10h 34m

$372

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Fri 1/9

12:55 pm-12:11 am

1 stop11h 16m

Toronto Pearson Intl

Fri 1/16

7:10 am-5:28 pm

1 stop10h 18m

$384

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Thu 1/15

6:00 am-4:35 pm

1 stop10h 35m

Toronto Pearson Intl

Thu 1/22

10:59 am-9:44 pm

1 stop10h 45m

$456

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Thu 5/21

7:15 am-11:55 pm

1 stop16h 40m

Toronto Pearson Intl

Thu 5/28

6:30 am-2:56 pm

1 stop8h 26m

$470

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Fri 5/22

7:10 am-6:14 pm

2 stops11h 04m

Toronto Pearson Intl

Thu 5/28

6:30 am-2:56 pm

1 stop8h 26m

$473

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Fri 5/22

7:10 am-6:14 pm

2 stops11h 04m

Toronto Pearson Intl

Wed 5/27

9:35 am-5:59 pm

1 stop8h 24m

$477

KnoxvilleToronto

TYS - YYZ

TYSYYZ

Knoxville McGhee Tyson

Wed 3/4

3:54 pm-11:20 pm

1 stop7h 26m

$119

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 13 results

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.

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

What is the cheapest month to book a flight from Knoxville to Niagara Falls?

Currently, April is the cheapest month in which you can book a flight from Knoxville to Niagara Falls (average of $158). Flying from Knoxville to Niagara Falls in August is currently the most expensive (average of $815). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from TYS to NI4?

A simple way to save on the total cost of your ticket is to fly from Knoxville to Niagara Falls in the evening. If you’re flexible enough to do this you can expect to save up to 16% on your trip compared to booking a flight in the morning.

How much does it cost to fly round-trip from Knoxville to Niagara Falls?

Reviews of airlines servicing Niagara Falls

Read through reviews of airlines operating flights from Knoxville to Niagara Falls, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.9

Good

8,004 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Delta

7.9

Good

8,004 reviews

Delta

7.9

Good

8,004 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

United Airlines

7.4

Good

9,092 reviews

Delta

7.9

Good

8,004 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

American Airlines

7.2

Good

11,055 reviews

Delta

7.9

Good

8,004 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Related info for your journey

What airport do you fly from for flights from Knoxville to Niagara Falls?
For a flight from Knoxville to Niagara Falls, you will be flying from McGhee Tyson. Knoxville McGhee Tyson (TYS) is just 11.3 mi from the center of the city. McGhee Tyson is the only Knoxville airport and it handles 0 outbound flights to Niagara Falls per day. 3 airlines have flights to Niagara Falls from Knoxville McGhee Tyson on a regular basis.
How long is the flight from Knoxville to Niagara Falls?
American Airlines can get you from Knoxville to Niagara Falls in just under 10h 26m. Your travel time can differ by up to . The distance from Knoxville to Niagara Falls is about 591 mi.
Can I find deals for flights from Knoxville to Niagara Falls that include hotel bookings?
Yes. In addition to deals on Knoxville to Niagara Falls flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Knoxville to Niagara Falls?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Niagara Falls.
Can I find deals for business class flights from Knoxville to Niagara Falls?
Yes. Cheapflights offers flight deals from Knoxville to Niagara Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Knoxville to Niagara Falls?
Currently, April is the cheapest month in which you can book a flight from Knoxville to Niagara Falls (average of $158). Flying from Knoxville to Niagara Falls in August is currently the most expensive (average of $815). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Knoxville to Niagara Falls

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Complete your trip

Niagara Falls car rentals

Toronto Pearson Intl Airport car rentals

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Kitchener car rentals

Top 3 airlines flying from Knoxville to Niagara Falls

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$158	Average$728	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$443	Average$755	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$554	Average$755	FlexibilityNo cancel fee	On-time69%

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$119+ 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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Knoxville to Niagara Falls

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 December 18, 2025.

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 December 18, 2025.

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 December 18, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Knoxville to Niagara Falls that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from Knoxville to Niagara Falls

What is the cheapest month to book a flight from Knoxville to Niagara Falls?

What is the cheapest time of day to fly from TYS to NI4?

Find hourly flight availability from Knoxville to Niagara Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

How much does it cost to fly round-trip from Knoxville to Niagara Falls?

Reviews of airlines servicing Niagara Falls

Read through reviews of airlines operating flights from Knoxville to Niagara Falls, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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.

What airport do you fly from for flights from Knoxville to Niagara Falls?

How long is the flight from Knoxville to Niagara Falls?

Can I find deals for flights from Knoxville to Niagara Falls that include hotel bookings?

How can I find direct flights from Knoxville to Niagara Falls?

Can I find deals for business class flights from Knoxville to Niagara Falls?

What is the cheapest month to book a flight from Knoxville to Niagara Falls?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Knoxville to Niagara Falls

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Knoxville to Niagara Falls

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Cheapest flights from Knoxville to Niagara Falls
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 December 18, 2025.