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Find cheap one-way flights from Seattle to Niagara Falls starting at US$285.

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • One way
  • Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to book flights from Seattle to Niagara Falls?

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Cheapest airlines flights from Seattle to Niagara Falls

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Frontier Airlines
From US$275
Alaska Airlines
From US$285
United Airlines
From US$446
Sun Country Airlines
From US$655
Delta Air Lines
From US$768
American Airlines
From US$906
ANA airlines

Find more flights and airlines

Find cheap flights from Seattle to Niagara Falls by different airports

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Seattle to Niagara Falls.

  • Cheapest
    Frontier Airlines
    SEA
    17:31
    22h 44m
    2 transfer
    IAG
    19:15
    Seattle-Tacoma International Airport - Niagara Falls International Airport
    Thu, Apr 18Frontier Airlines
    US$275
  • Frontier Airlines
    SEA
    17:31
    22h 44m
    2 transfer
    IAG
    19:15
    Seattle-Tacoma International Airport - Niagara Falls International Airport
    Thu, Apr 18Frontier Airlines
    US$275
    Find More Flights

Frequently Asked Questions

  • When are flight tickets from Seattle (SEA) to Niagara Falls (IAG) the cheapest?

    Airlines adjust prices for flights from Seattle to Niagara Falls based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much do flights from Seattle (SEA) to Niagara Falls (IAG) cost?

    According to Trip.com's data, the lowest price is around $802.
  • What is the transportation method from the main airport to downtown in Niagara Falls?

    • The distance from Niagara Falls International Airport to downtown is about 7km. It takes about 20 minutes by taxi.

Seattle to Niagara Falls Flight Information

Cheapest nonstop flight price

$285

Off-season for travel

April

Peak season for travel

March