Cheap Flights from Seattle (SEA) to Niagara Falls (IAG)

Popular airlines from Seattle-Tacoma International Airport (SEA) to Niagara Falls, NY (IAG-Niagara Falls Intl.)

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Flights from Seattle (SEA) to Niagara Falls (IAG)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Niagara Falls Intl.
Distance
2101 mi

Seattle to Niagara Falls Flights

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

 

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

Sunday is one of the best days to book for cheap flights from Seattle 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 Seattle 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 Seattle 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 Seattle 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 Seattle 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 Seattle - Tacoma Intl. Airport (SEA) to Niagara Falls Intl. Airport (IAG) cost?
Discover the latest flight deals from SEA to IAG by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from SEA to IAG?
The cheapest flights from SEA to IAG are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from SEA to IAG?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from SEA to IAG. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Niagara Falls Intl. Airport (IAG)?
There are no daily nonstop flights available from Seattle - Tacoma Intl. Airport (SEA) to Niagara Falls Intl. Airport (IAG). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you’ll be cruising above the clouds before you know it.
What day of the week has the most flights from SEA to IAG?
Generally you’ll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* However, this can vary depending on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Niagara Falls Intl. Airport (IAG)?
Opt for a flight from Seattle - Tacoma Intl. Airport (SEA) to Niagara Falls Intl. Airport (IAG) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures after this time 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.
What airports do you fly into for Niagara Falls from Seattle - Tacoma Intl. Airport (SEA)?
Explore your flight options from Seattle - Tacoma Intl. Airport (SEA) to Pearson Intl. Airport (YYZ). This is the only Niagara Falls airport you can arrive at if you’re taking a direct flight.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Niagara Falls Intl. Airport (IAG) last-minute?
Holding off until right before your break to book your flight from SEA to IAG often results in higher prices. While it’s possible to find some last-minute deals, they’re not always guaranteed. Allow some flexibility in your schedule for the best chance of snagging a bargain.
Is it cheaper to book a SEA to IAG flight and hotel package?
Securing a SEA to IAG flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Pick from our wide range of hotels and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Niagara Falls Intl. Airport (IAG)?
Typically, you can cancel or reschedule your SEA to IAG flight. However, additional fees may apply, especially if you made your booking more than 24 hours ago. Check your itinerary for the airline’s fees and policies on flight changes, or if you’d like further information, visit our Customer Service portal.

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*Available to One Key members.