Cheap flights from Dublin to Belfast

Compare Dublin to Belfast flight deals

Find the cheapest month or even day of the year to fly to Belfast

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Flight deals from Dublin to Belfast

Looking for a cheap last-minute deal or the best return flight from Dublin Airport to Belfast? If you want to travel next month, return fares start from P5,932. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Dublin to Belfast

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Dublin to Belfast flights are currently cheapest in May.

Alternative Dublin to Belfast routes

Looking for the cheapest, fastest or easiest route from Dublin to Belfast? You could fly into the following airports instead.

Dublin to Belfast: Flight information

The things to know before you go.
Cheapest flight foundP2,653
Cheapest month to flyMay

Finding cheap flights from Dublin to Belfast: Frequently asked questions

There are 2 airports in Belfast: Belfast City and Belfast International.
The best price we found for a return flight from Dublin to Belfast is P5,932. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Dublin to Belfast. But we found flights with one or more stops from P5,932.
As of May 2026, there are no flights flying from Dublin to Belfast.
The cheapest month to fly from Dublin to Belfast is usually June.
If you're flying from Dublin Airport, the cheapest airport near Belfast is Belfast International – which is 19.6 km away from the centre of Belfast. We've found flights into this airport from P5,932.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Dublin Airport to Belfast on Tuesday, 9 June 2026.
No airlines currently offer direct flights between Dublin Airport and Belfast. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Belfast but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Belfast is around 40 days in advance, so don’t leave your flight to the last minute.
In May, the average temperature is usually around 10°C. August is typically the warmest month in Belfast, when it usually averages around 17°C. You can expect the least rain in May. The coldest month is January, with temperatures averaging 4°C. The rainiest month is October.
Currently, Ryanair offers the cheapest flight tickets to Belfast.

Flying from Dublin Airport (DUB) to Belfast: what you need to know

  • Belfast and Dublin (where Dublin Airport is located) are in the UTC+0 timezone. That means there's no time difference to adjust for.

  • To avoid rushing for your DUB to Belfast flight, allow plenty of time for things like check-in and baggage drop. Arriving two hours before international departures and one hour before domestic flights is the standard rule.

  • Travelling during a peak month like July? Public holidays and other high seasons can mean longer lines and delays at check-in and security. Play things extra safe and arrive up to four hours ahead of an international flight and two hours before domestic departures.

  • A stopover is the ideal opportunity to break up your journey and maybe even explore a different city. When searching for plane tickets from DUB to Belfast, uncheck the 'Direct flights only' box to see where you can stop along the way. Top options include:

    • Manchester Airport (MAN)

    • Edinburgh Airport (EDI)

    • Birmingham Airport (BHX)

  • Travelling from central Dublin to DUB takes about 30 minutes on public transport. If you ride-share, drive or get a taxi, you'll cover the 8 kilometers in 25 minutes or so, depending on traffic conditions.

  • Want a stress-free start to your trip? Stay near DUB. Whether you're taking an early flight from Dublin Airport to Belfast or just don't like being rushed, these hotels are a convenient choice:

  • Of all flights departing from Dublin Airport, 77% touch down on time at their destination.

How to find the cheapest flights from Dublin Airport (DUB) to Belfast

  • The best price we've found for a one-way Dublin Airport to Belfast flight is P2,653. The cheapest price for a return flight is P5,932. Keep in mind fares may change due to demand at the time of booking.

  • Don't wait until the last minute. You're more likely to find cheap flights from DUB to Belfast if you book in advance. Airlines often have some amazing early bird rates.

  • Finding cheap tickets from Dublin Airport to Belfast is easier if you're flexible with your trip dates. Try using the 'Whole month' search tool to get the best prices across the month and snap up an awesome deal.

  • Spend less time searching for cheap flights from DUB to Belfast by creating a Price Alert. You'll get an email or push notification on the app when a new low fare is offered.

  • Tailor your trip with filters. Select your ideal departure and arrival times, airlines and total journey duration. You can also sort results by 'Best,' 'Cheapest' or 'Fastest' flights from Dublin Airport to Belfast.

Airports in Belfast

Belfast International Airport (BFS)

  • The distance from Belfast International Airport (BFS) to central Belfast is roughly 19 kilometers. It'll take you about 25 minutes to get to the centre driving.

  • It takes around 45 minutes if you're travelling on public transport.

  • If you have a late flight from Dublin Airport to Belfast, few things beat the convenience of staying near the terminal. Grab your luggage from the carousel and then be showered and relaxing not long after at one of these accommodation options near BFS:

  • Booking your vehicle from Belfast International Airport about three weeks in advance of your flight from DUB to Belfast can help you get the lowest rate.

George Best Belfast City Airport (BHD)

  • Central Belfast is located around 5 kilometers from George Best Belfast City Airport (BHD). After your flight from Dublin Airport to Belfast has hit the runway and you've navigated your way to arrivals, the drive should take about 15 minutes.

  • If you choose to travel on public transport, you'll reach the centre in 25 minutes or so.

  • Place the 'Do not disturb' sign on your door and unwind at a hotel near BHD. Here are a few options where you can settle in after your DUB to Belfast flight:

  • Secure your first choice, not your last resort. Securing your ride from BHD two weeks in advance often means better deals and a wider choice of vehicles.

Best time to go to Belfast

  • January is the quietest month for flights from Dublin Airport to Belfast, while September is the busiest. Choose the best time to go to Belfast based on whether you like a laid-back vibe or a lively atmosphere.

  • The warmest month in Belfast is July, with temperatures ranging between 9ºC (48ºF) and 19ºC (66ºF). Lock in your Dublin Airport to Belfast plane ticket then if that's your definition of good weather.

  • January has average temperatures of between 1ºC (34ºF) and 8ºC (46ºF). Look for a cheap ticket from DUB to Belfast around that time if you like cooler conditions.

More about Belfast

Explore more of the United Kingdom

  • Manchester is just one of the many places in the United Kingdom waiting to be discovered once you've seen the sights of Belfast. Around 274 kilometers away to the southeast, well-known attractions include Manchester United Museum & Stadium Tour, The Homes of Football and Museum of Science and Industry.

  • Around 354 kilometers southeast of Belfast, Birmingham is another essential stop in the United Kingdom. Experience major highlights starting with Birmingham Museum & Art Gallery, Birmingham Hippodrome Theatre and Bournville Experience.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.