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

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

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

February is typically the cheapest month to fly

From $175 - $309 per traveler.

Frequently asked questions

How much does a flight from Dublin Airport (DUB) to Belfast Intl. Airport (BFS) cost?
Get a cheap one-way flight or cheap return flight from Dublin Airport (DUB) to Belfast Intl. Airport (BFS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Dublin Airport (DUB) to Belfast Intl. Airport (BFS)?
The cheapest month to fly from DUB to BFS is , when there's less demand. Off-peak season is typically when airlines offer better prices between these airports.
What is the cheapest airline that flies from Dublin Airport (DUB) to Belfast Intl. Airport (BFS)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest DUB to BFS flight.
How many flights per day from Dublin Airport (DUB) to Belfast Intl. Airport (BFS)?
Nonstop flights from Dublin Airport (DUB) to Belfast Intl. Airport (BFS) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from DUB to BFS?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can change based on a number of factors, including the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Dublin Airport (DUB) to Belfast Intl. Airport (BFS)?
To avoid possible delays on the Dublin Airport (DUB) to Belfast Intl. Airport (BFS) route, aim to travel before 3 PM. Later departures have a 22% higher chance of cancellation.**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 Dublin Airport (DUB) to Belfast Intl. Airport (BFS) last-minute?
Waiting until just before your departure to book a flight from DUB to BFS generally means paying more. While it's possible to find some last-minute offers, they're not always guaranteed. Keep your travel schedule open for a better chance of scoring a bargain.
Is it cheaper to book a DUB to BFS flight and hotel package?
Booking a DUB to BFS flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Pick from our extensive range of accommodations and then add car rentals, activities and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Dublin Airport (DUB) to Belfast Intl. Airport (BFS)?
If you booked your DUB to BFS flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

Travel information

Travel information

Origin airport
Dublin
Destination airport
Belfast Intl.
Distance
85 mi

Book with confidence

Book with confidence

Dublin to Belfast Flights

The cheapest times to fly from Dublin to Belfast

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 Dublin to Belfast are during the month of . You can find some of the cheapest flights from Dublin to Belfast with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Dublin to Belfast

Sunday is one of the best days to book for cheap flights from Dublin to Belfast: 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 Dublin to Belfast

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 Dublin to Belfast 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 Dublin to Belfast 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 Dublin to Belfast 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.

 

Dublin to Belfast Flights

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Explore a world of travel with Expedia

*Available to One Key members.