Cheap Flights from Louisville (SDF) to Niagara Falls (IAG)

Flights from Louisville (SDF) to Niagara Falls (IAG)
Origin airport
Louisville Intl.
Destination airport
Niagara Falls Intl.
Distance
491 mi

Louisville to Niagara Falls Flights

The cheapest times to fly from Louisville 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 Louisville to Niagara Falls are during the month of . You can find some of the cheapest flights from Louisville to Niagara Falls with Expedia's search tool and vast selection of airlines.

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

Sunday is one of the best days to book for cheap flights from Louisville 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 Louisville 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 Louisville 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 Louisville 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 Louisville 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

Is it cheaper to buy a plane ticket from Louisville Intl. Airport (SDF) to Niagara Falls Intl. Airport last minute?
Being the spontaneous type is a great way to explore the globe, but it isn’t necessarily the wisest method to score a bargain airfare. Consider booking your SDF to Niagara Falls Intl. Airport trip ahead of time rather than leaving it to the last minute. Based on flight pricing and demand studies in 2022, we have found that the best time to book domestic flights is between 28 – 35 days ahead of the departure date, and international flights three to four months in advance. You can unleash your spontaneous side when you reach Niagara Falls Intl. Airport!
What airports do you fly into for Niagara Falls from Louisville?
Niagara Falls Intl. Airport (IAG), Buffalo Niagara Intl. Airport (BUF) and Billy Bishop Toronto City Airport (YTZ) are your choices when flying from Louisville to Niagara Falls. About 6 mi east of the heart of Niagara Falls, Niagara Falls Intl. Airport (IAG) is the city’s major hub. Consider factors like flight departure and arrival times and the distance to your hotel before settling on an airport. Bridal Veil Falls and Aquarium of Niagara are two awesome attractions to visit when you arrive at your destination.
Can I change the date of my flight from SDF to Niagara Falls Intl. Airport?
Quickly make changes to your SDF to IAG ticket via the Expedia Trips portal. But before doing so, read through the conditions in your itinerary to learn what the airline will let you do and what fees apply for changes. Some airlines have a change fee per person, plus any difference in ticket prices. However, if you booked in the last 24 hours, you may be able to cancel for free and arrange new flights. You can also swing by our Customer Service portal for more handy information and to chat with our Virtual Agent.

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*Available to One Key members.