Cheap flights from Trenton to Belfast from $423

Travelers frequently search for route combinations, such as Trenton and Orlando, Tampa, Fort Lauderdale, Atlanta, Fort Myers, Charlotte, Salt Lake City, Raleigh, New York, Philadelphia, Managua, West Palm Beach, Cincinnati, Hanover, Medford, Rajahmundry, Chennai, Rochester, Bridgetown, San Jose.

Travelers frequently search for route combinations, such as Belfast and New York, Washington, D.C., Minneapolis, Orlando, Boston, Miami, Houston, Los Angeles, Sacramento, London, Paris, Birmingham, Glasgow, Douglas, Antalya, Edinburgh, Barcelona, Vancouver, Kraków, Copenhagen.

The main airport in Trenton is Trenton–Mercer. It is also served by Newark Liberty International, Baltimore–Washington International, Philadelphia International, LaGuardia, Ronald Reagan Washington National, New York Stewart International Airport, Tweed New Haven, Lehigh Valley International, Westchester County, Atlantic City International.

The main airport in Belfast is Belfast International. It is also served by Dublin, Isle of Man, Ireland West Airport Knock, Glasgow Prestwick, Donegal, City of Derry.

Currently, you can fly between Trenton and Belfast with Frontier Airlines, easyJet, British Airways, Air Transat, Ryanair.

If you don’t have specific dates for your trip between Trenton and Belfast, 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 Trenton and Belfast, 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 Trenton. The main one is Trenton–Mercer and other nearby airports include Newark Liberty International, Baltimore–Washington International, Philadelphia International, LaGuardia, Ronald Reagan Washington National, New York Stewart International Airport, Tweed New Haven, Lehigh Valley International, Westchester County, Atlantic City International

There are a number of airports in and around Belfast. The main one is Belfast International and other nearby airports include Dublin, Isle of Man, Ireland West Airport Knock, Glasgow Prestwick, Donegal, City of Derry.