Cheap Flights from Knoxville (TYS) to Niagara Falls (IAG)

Popular airlines from McGhee Tyson Airport (TYS) to Niagara Falls, NY (IAG-Niagara Falls Intl.)

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Alternative airports near Niagara Falls

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Buffalo Niagara Intl. BUF. Cheapest option available. Average driving time to city center is 34 minutes. Flights from $447
BUF
Buffalo Niagara Intl.
Cheapest
Average driving time to city center34 min
Flights from $447
Flights from Knoxville (TYS) to Niagara Falls (IAG)
Origin airport
McGhee Tyson
Destination airport
Niagara Falls Intl.
Distance
571 mi

Knoxville to Niagara Falls Flights

The cheapest times to fly from Knoxville to Niagara Falls

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Knoxville to Niagara Falls are during the month of . You can find some of the cheapest flights from Knoxville to Niagara Falls with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Knoxville to Niagara Falls

Sunday is one of the best days to book for cheap flights from Knoxville to Niagara Falls: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Knoxville to Niagara Falls

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Knoxville to Niagara Falls in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Knoxville to Niagara Falls flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Knoxville to Niagara Falls airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from McGhee Tyson Airport (TYS) to Niagara Falls Intl. Airport (IAG) cost?
Secure a cheap one-way flight or cheap return flight from McGhee Tyson Airport (TYS) to Niagara Falls Intl. Airport (IAG) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from McGhee Tyson Airport (TYS) to Niagara Falls Intl. Airport (IAG)?
Traveling in can help you save, as it's the cheapest month for flights between TYS and IAG. You'll typically find the lowest fares during off-peak months.
What is the cheapest airline that flies from McGhee Tyson Airport (TYS) to Niagara Falls Intl. Airport (IAG)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest TYS to IAG flight.
How many flights per day from McGhee Tyson Airport (TYS) to Niagara Falls Intl. Airport (IAG)?
There aren't any daily nonstop flights from McGhee Tyson Airport (TYS) to Niagara Falls Intl. Airport (IAG). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be on your way before you know it.
What day of the week has the most flights from TYS to IAG?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from McGhee Tyson Airport (TYS) to Niagara Falls Intl. Airport (IAG)?
Choose a flight from McGhee Tyson Airport (TYS) to Niagara Falls Intl. Airport (IAG) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from McGhee Tyson Airport (TYS) to Niagara Falls Intl. Airport (IAG) last-minute?
Waiting until just before your trip to book a ticket from TYS to IAG often results in higher prices. While it's possible to find some last-minute offers, they aren't always guaranteed. Keep your travel plans flexible for a better chance of snagging a bargain.
Is it cheaper to book a TYS to IAG flight and hotel package?
Booking a TYS to IAG flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Pick from our impressive range of hotels and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from McGhee Tyson Airport (TYS) to Niagara Falls Intl. Airport (IAG)?
Generally, it's possible to reschedule or cancel your TYS to IAG flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more information on our Customer Service portal.

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