Flights to Dublin from Birmingham: the busiest route

Aer Lingus and Ryanair both fly Birmingham to Dublin, and between them they carried 871,092 passengers in 2025, more than any other route from the airport. Having two carriers going head to head on a route this short is the reason the fares stay keen: when one runs a sale, the other tends to follow. Aer Lingus is the Irish flag carrier with a fuller service; Ryanair is the low-cost specialist. On a flight this quick, the experience is much of a muchness, and the price and timing usually decide it.

The two split by terminal at the Dublin end, which matters for the trip home: Ryanair uses Terminal 1 and Aer Lingus uses Terminal 2. The airline line-up at Birmingham shows how the pair fit into the wider network, and Ryanair adds Cork, Shannon and Knock for the rest of Ireland alongside this route. Dublin sits at the top of every direct route from Birmingham by passenger numbers.

Dublin is only about 200 miles from Birmingham, so the flight takes around an hour and a quarter gate to gate, and often less time in the air than that. It is one of the shortest international flights from the airport, closer to a long train ride than a proper long-haul day. The seatbelt sign is barely off before it is on again, so do not expect much of a service on either airline.

That short hop is what makes a Dublin day trip realistic, and what makes the route work for weekend breaks, football, concerts and business alike.

This is as frequent as short-haul from Birmingham gets. Aer Lingus and Ryanair each run around five or six flights a day, so between them you have up to a dozen departures, spread from early morning to late evening. The practical benefit is flexibility: miss one and the wait for the next is usually measured in hours, not days, and a disruption is easier to rebook around than on a thin route.

The early and late slots make a same-day return genuinely workable for a meeting or a match. For the next departures and their gates on the day you travel, the departures board shows the schedule over the hours ahead; book against the airlines' own timetables for dates further out.

Dublin is the best-value international route from Birmingham. Fares often start under £30 one way, and Ryanair in particular dips below £20 on quieter dates. The catch is the same on both airlines: the cheapest fares are hand-luggage only, covering a small bag under the seat, and a cabin bag or a hold bag costs extra. Add those and the two carriers usually land close on total price, with your dates deciding it.

So the honest advice is to price the whole trip, bags included, not the headline fare. If you can travel with only a small bag, this is about as cheap as flying gets. Before you book, it is worth knowing your baggage allowance and what counts as a personal item, because the fees are where the low fares are recovered. Prices change constantly, so compare live fares on both airlines rather than trusting a fixed number.

Birmingham has one terminal, so departure is straightforward: for a short-haul flight, bag drop and security are the whole story, and the airport map shows where they sit. At Dublin, remember the terminal split, Ryanair to Terminal 1 and Aer Lingus to Terminal 2, mainly so you arrive at the right one for the flight home.

Dublin's real trick is US preclearance. Fly in with Aer Lingus and connect to the United States from Terminal 2, and you clear US immigration and customs in Dublin, before you board, at a facility staffed by US officers. You then land in America as a domestic arrival, with no border queue at the other end after an overnight flight. It is not on every service (the late New York and Boston departures are the usual exceptions), and you want a comfortable connection, so allow at least a couple of hours to be safe. Your checked bags are tagged through to the final destination. That shortcut is a large part of why Birmingham travellers pick Dublin over a direct European hub for the States, at least until Birmingham regains its own transatlantic flights.

• Check which Dublin terminal you need. Ryanair flies to Terminal 1 and Aer Lingus to Terminal 2. It rarely matters on the way out, but it decides where you check in for the flight home.
• Price the trip with bags, not the headline fare. The cheapest Aer Lingus and Ryanair fares are hand-luggage only. Add a cabin or hold bag online in advance, where it is much cheaper than at the airport.
• A day trip really works. With flights from early morning to late evening, you can go over for a meeting or a match and be home the same night. Book the outbound early and the return late.
• Use Dublin for the USA if it suits. Aer Lingus connections clear US border checks in Dublin before boarding, so you skip the queue on landing. Leave at least a couple of hours to connect.
• Carry the right ID. There is no passport control between the UK and Ireland, but the airlines still require accepted photo ID, and both usually want a passport. Non-UK and non-Irish travellers should carry their passport and any visa.