Cheap Flights from Belfast (BFS) to Dublin (DUB)

Popular airlines from Belfast International Airport (BFS) to Dublin Airport (DUB)

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Find the cheapest month to fly from Belfast (BFS) to Dublin (DUB)

January is typically the cheapest month to fly

From $181 - $328 per traveler.

Frequently asked questions

How much does a flight from Belfast Intl. Airport (BFS) to Dublin Airport (DUB) cost?
Grab a cheap one-way flight or cheap return flight from Belfast Intl. Airport (BFS) to Dublin Airport (DUB) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Belfast Intl. Airport (BFS) to Dublin Airport (DUB)?
The cheapest month to fly from BFS to DUB is , when there's less demand. Off-peak months are typically when airlines offer better prices between these airports.
What is the cheapest airline that flies from Belfast Intl. Airport (BFS) to Dublin Airport (DUB)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll fly you from BFS to DUB. Then, sort your results by "Price (lowest to highest)" to pick up a great deal.
How many flights per day from Belfast Intl. Airport (BFS) to Dublin Airport (DUB)?
There are no daily nonstop flights from Belfast Intl. Airport (BFS) to Dublin Airport (DUB). But you can book flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from BFS to DUB?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change based on various factors, including the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Belfast Intl. Airport (BFS) to Dublin Airport (DUB)?
To avoid possible delays on the Belfast Intl. Airport (BFS) to Dublin Airport (DUB) route, aim to fly before 3 PM. Flights after this time have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Belfast Intl. Airport (BFS) to Dublin Airport (DUB) last-minute?
Last-minute fares from BFS to DUB are typically more expensive. To secure the lowest prices, start looking for flights early. That being said, if you're flexible with your travel dates, it's possible to score a cheap ticket right before you leave.
Is it cheaper to book a BFS to DUB flight and hotel package?
Booking a BFS to DUB flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Choose from our impressive range of accommodations and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Belfast Intl. Airport (BFS) to Dublin Airport (DUB)?
In most cases, you can reschedule or cancel your BFS to DUB flight. However, additional charges may apply, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you want more information, visit our Customer Service portal.

Travel information

Origin airport
Belfast Intl.
Destination airport
Dublin
Distance
85 mi

Book with confidence

Belfast to Dublin Flights

The cheapest times to fly from Belfast to Dublin

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Belfast to Dublin are during the month of . You can find some of the cheapest flights from Belfast to Dublin with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Belfast to Dublin

Sunday is one of the best days to book for cheap flights from Belfast to Dublin: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Belfast to Dublin

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Belfast to Dublin in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Belfast to Dublin flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Belfast to Dublin airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Belfast to Dublin Flights
*Available to One Key members.