Aer Lingus flights to Belfast

We've compared every online travel agent and flight provider out there to find the cheapest Aer Lingus plane tickets to Belfast. And with us, there are no added fees – what you see is what you pay.

At the moment, the best route to Belfast with Aer Lingus is from Dublin to Belfast.

The cheapest time to go to Belfast with Aer Lingus is currently September.

If you're flexible on your departure dates, use Skyscanner's whole month tool to find the cheapest month, and even day, to get flights to Belfast with Aer Lingus.

We'll let you know when the price of your flight to Belfast goes up or down so you can book when the time is just right. You're even able to watch specific Aer Lingus flights.

Aer Lingus might offer amendable tickets to Belfast, which means you won't lose out if your booking has to be changed or canceled.

Make sure you have the right travel insurance before flying to Belfast. That way you can cover the costs of any unexpected events, such as delays or lost luggage.

To check whether there are any lower-emissions flights available on your route, simply check the “only show flights with lower CO₂ emissions” box when you search for a flight with us.