How long is the flight from Knoxville to Niagara Falls?

WestJet can get you from Knoxville to Niagara Falls in just under 21h 08m. 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 is the cheapest time of day to fly from TYS to NI4?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Knoxville to Niagara Falls as you normally would.

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. 1 airline has 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.

$218+ Cheap Flights from Knoxville to Niagara Falls

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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

Cheapest

Best

Last-minute

One-way

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 August 21, 2026.

Fri 9/1110:54 am -

1 stop27h 11m

Wed 9/166:00 am -

1 stop5h 04m

Deal found 8/16

$400

Mon 9/144:18 pm -

1 stop24h 22m

Mon 9/216:00 am -

1 stop5h 04m

Deal found 8/17

$426

Thu 9/1710:54 am -

1 stop10h 01m

Mon 9/216:15 am -

1 stop5h 03m

Deal found 8/18

$427

Tue 9/2210:29 am -

1 stop28h 01m

Thu 9/246:30 am -

1 stop9h 57m

Deal found 8/19

$449

Fri 9/188:00 am -

1 stop12h 50m

Wed 9/236:00 am -

1 stop4h 18m

Deal found 8/16

$456

Sat 10/39:36 pm -

1 stop16h 29m

Sat 10/107:00 am -

2 stops40h 30m

Deal found 8/19

$461

Sun 9/137:10 am -

2 stops14h 54m

Wed 9/166:00 am -

1 stop5h 04m

Deal found 8/16

$464

Fri 12/118:00 am -

1 stop13h 55m

Sun 12/134:50 pm -

1 stop27h 57m

Deal found 8/17

$471

Fri 9/188:00 am -

1 stop12h 50m

Mon 9/216:00 am -

1 stop4h 18m

Deal found 8/19

$475

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 August 21, 2026.

Tue 9/2210:29 am -

1 stop28h 01m

Thu 9/247:45 am -

1 stop13h 55m

Deal found 8/16

$426

Sat 10/311:45 am -

1 stop21h 08m

Wed 10/76:00 am -

1 stop5h 02m

Deal found 8/18

$534

Thu 9/177:20 pm -

2 stops15h 20m

Mon 9/217:35 pm -

2 stops19h 02m

Deal found 8/18

$572

Sat 10/37:10 am -

1 stop9h 35m

Wed 10/77:24 pm -

1 stop4h 31m

Deal found 8/15

$595

Tue 10/207:04 pm -

1 stop21h 51m

Fri 10/234:55 pm -

1 stop18h 37m

Deal found 8/18

$479

Tue 9/85:45 pm -

1 stop6h 14m

Mon 9/218:00 pm -

2 stops13h 29m

Deal found 8/19

$567

Fri 9/47:00 am -

1 stop13h 50m

Mon 9/76:00 am -

1 stop5h 11m

Deal found 8/17

$519

Fri 9/187:20 pm -

2 stops17h 47m

Mon 9/218:55 pm -

2 stops17h 42m

Deal found 8/19

$581

Sat 10/39:36 pm -

1 stop16h 29m

Sat 10/107:00 am -

1 stop25h 30m

Deal found 8/19

$523

Thu 9/105:21 pm -

2 stops21h 34m

Sun 9/136:30 am -

1 stop10h 24m

Deal found 8/17

$552

Thu 9/1710:54 am -

1 stop10h 01m

Mon 9/2111:00 pm -

2 stops24h 55m

Deal found 8/18

$557

Last-minute flights from Knoxville to Niagara Falls
Discover last-minute flight deals from Knoxville to Niagara Falls. Data last updated August 21, 2026 and is based on user searches.

Fri 9/1110:54 am -

1 stop27h 11m

Wed 9/166:00 am -

1 stop5h 04m

Deal found 8/16

$400

Sun 9/137:10 am -

2 stops14h 54m

Wed 9/166:00 am -

1 stop5h 04m

Deal found 8/16

$464

Mon 9/144:18 pm -

1 stop24h 22m

Mon 9/216:00 am -

1 stop5h 04m

Deal found 8/17

$426

Thu 9/1710:54 am -

1 stop10h 01m

Mon 9/216:15 am -

1 stop5h 03m

Deal found 8/18

$427

Fri 9/188:00 am -

1 stop12h 50m

Wed 9/236:00 am -

1 stop4h 18m

Deal found 8/16

$456

Fri 9/188:00 am -

1 stop12h 50m

Mon 9/216:00 am -

1 stop4h 18m

Deal found 8/19

$475

Mon 9/218:00 am -

1 stop12h 50m

Thu 9/244:55 pm -

2 stops30h 26m

Deal found 8/18

$492

Tue 9/2210:29 am -

1 stop28h 01m

Thu 9/246:30 am -

1 stop9h 57m

Deal found 8/19

$449

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 August 21, 2026.

Mon 9/285:40 pm -

1 stop23h 15m

Deal found 8/20

$218

Wed 9/910:54 am -

1 stop27h 11m

Deal found 8/17

$226

Tue 9/295:40 am -

1 stop4h 43m

Deal found 8/20

$264

Wed 9/95:40 am -

2 stops19h 25m

Deal found 8/17

$266

Fri 8/287:41 pm -

1 stop14h 44m

Deal found 8/20

$322

Find flight deals from Knoxville to Niagara Falls

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$400 (Kiwi.com)
One-way from	$218 (Kiwi.com)
Popular in	August
Cheapest in	July
Average price	$978

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

Search Deals

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

Search Deals

From Knoxville McGhee Tyson to Niagara Falls

Search Deals

One-way flight from Knoxville McGhee Tyson to Niagara Falls

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($74 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($33 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2026

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

Cheapest round-trip

KnoxvilleToronto

TYS Knoxville McGhee Tyson - YYZ Toronto Pearson Intl

TYSYYZ

Knoxville McGhee Tyson

Tue 9/22

10:29 am-2:30 pm

1 stop28h 01m

Toronto Pearson Intl

Thu 9/24

7:45 am-9:40 pm

1 stop13h 55m

$426

KnoxvilleToronto

TYS Knoxville McGhee Tyson - YYZ Toronto Pearson Intl

TYSYYZ

Knoxville McGhee Tyson

Tue 10/20

7:04 pm-4:55 pm

1 stop21h 51m

Toronto Pearson Intl

Fri 10/23

4:55 pm-11:32 am

1 stop18h 37m

$479

KnoxvilleToronto

TYS Knoxville McGhee Tyson - YYZ Toronto Pearson Intl

TYSYYZ

Knoxville McGhee Tyson

Fri 9/4

7:00 am-8:50 pm

1 stop13h 50m

Toronto Pearson Intl

Mon 9/7

6:00 am-11:11 am

1 stop5h 11m

$519

KnoxvilleToronto

TYS Knoxville McGhee Tyson - YYZ Toronto Pearson Intl

TYSYYZ

Knoxville McGhee Tyson

Sat 10/3

9:36 pm-2:05 pm

1 stop16h 29m

Toronto Pearson Intl

Sat 10/10

7:00 am-8:30 am

1 stop25h 30m

$523

KnoxvilleToronto

TYS Knoxville McGhee Tyson - YYZ Toronto Pearson Intl

TYSYYZ

Knoxville McGhee Tyson

Sat 10/3

11:45 am-8:53 am

1 stop21h 08m

Toronto Pearson Intl

Wed 10/7

6:00 am-11:02 am

1 stop5h 02m

$534

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

6:30 am-4:54 pm

1 stop10h 24m

$552

KnoxvilleToronto

TYS Knoxville McGhee Tyson - YYZ Toronto Pearson Intl

TYSYYZ

Knoxville McGhee Tyson

Thu 9/17

10:54 am-8:55 pm

1 stop10h 01m

Toronto Pearson Intl

Mon 9/21

11:00 pm-11:55 pm

2 stops24h 55m

$557

KnoxvilleToronto

TYS Knoxville McGhee Tyson - YYZ Toronto Pearson Intl

TYSYYZ

Knoxville McGhee Tyson

Tue 9/8

5:45 pm-11:59 pm

1 stop6h 14m

Toronto Pearson Intl

Mon 9/21

8:00 pm-9:29 am

2 stops13h 29m

$567

KnoxvilleToronto

TYS Knoxville McGhee Tyson - YYZ Toronto Pearson Intl

TYSYYZ

Knoxville McGhee Tyson

Thu 9/17

7:20 pm-10:40 am

2 stops15h 20m

Toronto Pearson Intl

Mon 9/21

7:35 pm-2:37 pm

2 stops19h 02m

$572

KnoxvilleToronto

TYS Knoxville McGhee Tyson - YYZ Toronto Pearson Intl

TYSYYZ

Knoxville McGhee Tyson

Fri 9/18

7:20 pm-1:07 pm

2 stops17h 47m

Toronto Pearson Intl

Mon 9/21

8:55 pm-2:37 pm

2 stops17h 42m

$581

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/20

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.

Reviews of airlines servicing Niagara Falls

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.

American Airlines

7.1

Good

11,980 reviews

Reviews

1 / 20

10.0

Excellent

Linda,Jul 2026

ROA - CLT

Very helpful and friendly people who pushed me where I needed to go

American Airlines

7.1

Good

11,980 reviews

American Airlines

7.1

Good

11,980 reviews

Reviews

1 / 20

10.0

Excellent

Linda,Jul 2026

ROA - CLT

Very helpful and friendly people who pushed me where I needed to go

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. 1 airline has flights to Niagara Falls from Knoxville McGhee Tyson on a regular basis.
How long is the flight from Knoxville to Niagara Falls?
WestJet can get you from Knoxville to Niagara Falls in just under 21h 08m. 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Flights by cabin class

Other flight options

Other flights from Knoxville

Popular flights

Top destinations

Alternative routes for Knoxville to Niagara Falls

Nashville to Pearson Intl flights

Nashville to Pierre Elliott Trudeau Intl flights

Nashville to Hamilton flights

Memphis to Pierre Elliott Trudeau Intl flights

Knoxville to Pearson Intl flights

Memphis to Pearson Intl flights

Nashville to Ottawa flights

Memphis to Ottawa flights

Knoxville to Ottawa flights

Chattanooga to Ottawa flights

Top airline flying from Knoxville to Niagara Falls

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$427	Average$683	FlexibilityNo cancel fee	On-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$218+ 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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Knoxville to Niagara Falls with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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 August 21, 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 21, 2026.

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 21, 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 21, 2026.

Last-minute flights from Knoxville to Niagara FallsDiscover last-minute flight deals from Knoxville to Niagara Falls. Data last updated August 21, 2026 and is based on user searches.

Discover last-minute flight deals from Knoxville to Niagara Falls. Data last updated August 21, 2026 and is based on user searches.

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 21, 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 21, 2026.

Find flight deals from Knoxville to Niagara Falls

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

Reviews of airlines servicing Niagara Falls

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.

Related info for your journey

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?

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.

Complete your trip

Complete your trip to Niagara Falls by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Knoxville to Niagara Falls by cabin class

Find flights from Knoxville to Niagara Falls, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Knoxville and Niagara Falls flights

Browse other Knoxville and Niagara Falls flight options. Last updated on August 21, 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 21, 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 airline flying from Knoxville to Niagara Falls

100% Free

Book with Flexibility

Travel Smart

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 August 21, 2026.

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 August 21, 2026.

Last-minute flights from Knoxville to Niagara Falls
Discover last-minute flight deals from Knoxville to Niagara Falls. Data last updated August 21, 2026 and is based on user searches.

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 August 21, 2026.