Find cheap flights to Long Island

Aer Lingus, KLM and Delta are the top three most popular airlines that fly to Long Island according to our data. Aer Lingus is the first choice among our users, with 61% of people opting to fly with this airline when travelling to Long Island. Keep in mind that there are 9 different airlines that fly to Long Island on a routine basis, so you have a few additional options to choose from.

Flight times from Ireland to Long Island vary, but if you’re flying out of Dublin and flying into Kastrup Copenhagen (one of the most popular routes), then the duration is 2h 09m on average. Another popular route from Ireland to Long Island is flying from Cork to Kastrup Copenhagen, which will take roughly . Keep in mind that layovers or delays could extend your travel time.

Flying to Long Island on a Thursday or Wednesday is your best option since this is when flight prices tend to be at their lowest for the week. The most expensive day of the week to fly to Long Island is on a Monday.

Prices for flights to Long Island refresh daily.

The number of operators available for flights to Long Island is 14 as of September 2026.

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel to Long Island.

The travel and health documents required for your trip to Long Island can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Long Island. We always recommend checking with your airline or a trusted third party such as IATA to get advice.