Cheap flights from Key West, FL to Portsmouth, MA

Travelers frequently search for route combinations, such as Key West and London, Orlando, Hamilton, New Orleans, San Juan, Las Vegas, Glasgow, Nashville, Denver, Manchester, New York, Chicago, Miami, Los Angeles, Atlanta, Mexico City, Bogotá, Dallas, Phoenix, Philadelphia.

Travelers frequently search for route combinations, such as Portsmouth and New York, Orlando, Las Vegas, Denver, Chicago, Miami, Los Angeles, Atlanta, Mexico City, Bogotá, Dallas, Phoenix, Philadelphia, San Francisco, Cancún, Houston, San Juan, Washington, D.C., Dhaka, Fort Lauderdale.

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

The main airport in Portsmouth is Portsmouth International Airport at Pease. It is also served by Logan International, Bradley International, Rhode Island T. F. Green Int'l Airport, Portland International Jetport, Manchester–Boston Regional, Bangor International, Augusta State, Portsmouth International Airport at Pease, Lebanon Municipal, Barnstable Municipal.

Yes, it's possible to combine different modes of transport between Key West and Portsmouth thanks to our Virtual Interlining technology. Making use of not only flights but also trains and buses between Key West and Portsmouth can give rise to new adventures. Read more about how Virtual Interlining works on Kiwi.com Stories.

Virtual Interlining provides a revolutionary way of traveling. You can combine different modes of transport like flights, trains, and buses into one itinerary. And this often saves money. Thanks to the world's largest carrier database, the Kiwi.com search function enables anyone to mix and match different modes of transport easily.

Currently, you can fly between Key West and Portsmouth with Allegiant Air, Silver Airways, Spirit Airlines, Frontier Airlines, JetBlue Airways.

If you don’t have specific dates for your trip between Key West and Portsmouth, 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 Portsmouth, 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.