Cheap flights from Dublin to Belfast
Cheap return flights from Dublin to Belfast
Find the best deals
All prices shown are per person based on return flights only. Prices found in the last 48 hours.
Belfast flight facts
What you need to know
What are the cheapest airlines?
- Ryanair
- Aer Lingus
- easyJet
These airlines usually offer the cheapest flights from Dublin to Belfast.
What airlines fly indirectly?
- British Airways
- KLM
- Lufthansa
These airlines fly from Dublin to Belfast, but you’ll have at least one layover.
How long is the flight?
1 hour
This is the shortest flight time from Dublin to Belfast.
Alternative flights from the UK to Belfast
Check out prices for other routes
Alternative flights from Dublin
You might find cheaper flights nearby
Today alone, Netflights has searched over five flights. 05 / Feb / 2026 is currently the lowest priced day of the year to fly the Dublin/Belfast route. There are around 35 flights on any given week from the UK to Belfast and the cheapest month to fly right now is February. Not suitable? Try running another search or viewing all cheap flight deals.
How to get cheap flights from Dublin to Belfast
Tips and advice from our flight experts
You've searched for flights from Dublin to Belfast. We've found 15 flights and compared them to give you the best offer. Ryanair is the average cheapest airline for this route, so look out for them. The cheapest offer we've found is a one-way ticket for £89 from Dublin to Belfast on 15/05/2026 at 01:25.
We've scanned hundreds of airfares from dozens of airlines across the globe. In total, we've found 5 airlines that operate the 150 km flight from Dublin to Belfast.
To find the best offers, consider booking 2-3 months in advance or looking for last-minute deals. Ryanair is a popular and cheap option for this route, with an average flight duration of 1 hour. After selecting an offer, fill out your information and payment. Also, consider booking a hotel with us or using our flight + hotel service to save time and money.
Other popular destinations near Belfast
Where other people are flying to
