Cheap flights from Key West to Niagara Falls from $165

Travelers frequently search for route combinations, such as Key West and Orlando, Tampa, Fort Lauderdale, Cancún, Asheville, Cincinnati, Tallahassee, Pittsburgh, Monterrey, Grand Cayman, Atlanta, New York, Kherson, Istanbul, Budapest, McAllen, Santorini, Johannesburg, Tulsa, Venice.

Travelers frequently search for route combinations, such as Niagara Falls and Pittsburgh, Philadelphia, Knoxville, Richmond, Hilo, Atlanta, Oklahoma City, Bozeman, Medford, Jacksonville, Grand Rapids, Omaha, Springfield, Indianapolis, Spokane, Islip, Charlotte, Albany, Kansas City, Anchorage.

The main airport in Key West is Key West International. It is also served by Miami International, Key West International.

The main airport in Niagara Falls is Niagara Falls International. It is also served by Toronto Pearson International, Billy Bishop Toronto City, Syracuse Hancock International, Greater Rochester International, Buffalo Niagara International, Region of Waterloo International, John C. Munro Hamilton International, Erie International, Elmira/Corning Regional, Niagara Falls International.

Currently, you can fly between Key West and Niagara Falls with Allegiant Air, BREEZE, JetBlue Airways, Spirit Airlines.

If you don’t have specific dates for your trip between Key West and Niagara Falls, you can enter a date range into the departure and return fields. Most carriers on the Kiwi.com website allow you to search and book up to six months from the day of your search. Order the search results by the best, cheapest, or fastest route, or find the cheapest outbound and return combination in the pricing table.

Traveling between Key West and Niagara Falls, you can choose between direct (nonstop) flights or flights with one or more stops. You can select the number of stops on your journey, including an overnight stopover, and the duration of the stopover. What’s more, you can also select where you want to have your stopover. Want to say "Hi" to a friend in another city en route to your destination? Or fancy a quick round of shopping? Go Multi-City or Nomad and add places to your search that you wish to visit.

There are a number of airports in and around Key West. The main one is Key West International and other nearby airports include Miami International, Key West International

There are a number of airports in and around Niagara Falls. The main one is Niagara Falls International and other nearby airports include Toronto Pearson International, Billy Bishop Toronto City, Syracuse Hancock International, Greater Rochester International, Buffalo Niagara International, Region of Waterloo International, John C. Munro Hamilton International, Erie International, Elmira/Corning Regional, Niagara Falls International.