Cheap flight tickets from Donegal to Dublin

Compare Donegal to Dublin flight deals

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Flight deals from Donegal Airport to Dublin Airport

Looking for a cheap last-minute deal or the best return flight from Donegal Airport to Dublin Airport? If you want to travel next month, return fares start from RM411. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Donegal to Dublin

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

Direct flights from Donegal to Dublin

Donegal to Dublin: Alternative routes

Compare routes from Donegal to Dublin below. You may find an airport to fly into that's cheaper, faster, or easier than Dublin.

Donegal to Dublin: Flight information

The things to know before you go.
Cheapest flight foundRM395
Cheapest month to flyMarch
Average flight time57 mins
Most popular airlineAer Lingus
Average flights per week50

Finding cheap flights from Donegal to Dublin: Frequently asked questions

The best price we found for a return flight from Donegal to Dublin is RM395. 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.
57 minutes is the average flight time from Donegal to Dublin.
Aer Lingus, Emerald Airlines and British Airways fly direct from Donegal to Dublin.
As of March 2026, there are 50 flights per week flying from Donegal to Dublin.
The cheapest month to fly from Donegal to Dublin is usually March.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Donegal Airport to Dublin Airport on Friday, 20 March 2026.
Yes – the average flight time is 57 minutes.
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 Dublin 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 Dublin is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Aer Lingus offers the cheapest flight tickets to Dublin.

Travelling from Donegal Airport (CFN) to Dublin Airport (DUB): what you need to know

  • Around 55 minutes is how long you can expect to be in the air on a direct flight from Donegal Airport to Dublin Airport.

  • Donegal and Dublin share the same timezone, UTC+0.

  • Take your pick of 40 weekly Donegal Airport to Dublin Airport flights. The 07:55 departure with Aer Lingus is the earliest you can take. Aer Lingus operates the latest service of the day at 13:15.

  • Arrive at the airport on time so you don't miss your CFN to DUB flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid any last-minute rush.

  • Travelling during a peak time such as July? Major public holidays and other high seasons can lead to longer queues and delays at airport checkpoints. Be extra cautious and get there up to four hours before an international flight and two hours before a domestic departure.

  • Aer Lingus has direct flights from Donegal Airport to Dublin Airport. Book with this popular carrier, then get ready to check out the sights in Dublin — and maybe even more of Ireland if you have time.

  • Aer Lingus is the airline most travellers choose to fly with on this route.

  • The most punctual carrier offering CFN to DUB flights is Aer Lingus. Its services land as scheduled 76.92% of the time.

  • If you want to explore another city along the way, look for a flight with a stopover. To see all your options for tickets from Donegal Airport to Dublin Airport, uncheck 'Direct flights only.' Glasgow International Airport is a sought-after stop between CFN and DUB.

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

  • RM194 is currently the best price for a one-way Donegal Airport to Dublin Airport flight. A return flight starts from RM395. These prices can change depending on demand and availability.

  • To secure cheap tickets from CFN to DUB, book your journey six months before your departure date.

  • The cheapest month for flights from Donegal Airport to Dublin Airport is May. Use the 'Whole month' tool to see the lowest prices if you have a flexible travel schedule.

  • Spend less time searching for cheap flights from CFN to DUB by creating a Price Alert. You'll get an email or push notification on the app when a lower fare becomes available.

  • Select your preferred arrival and departure times, airlines and number of stops with the filters. Alternatively, sort your results by 'Cheapest' to find the best deals on flights from Donegal Airport to Dublin Airport.

Handy information about Donegal Airport (CFN)

  • Of the flights that depart from Donegal Airport, 76.92% arrive as scheduled at their destination.

  • To get to Donegal Airport from central Donegal, it takes around 1 hour 5 minutes if you're going by car. Of course, this depends on traffic conditions. It's approximately 72 kilometres from the airport to the city centre.

  • The trip on public transport usually takes 4 hours 10 minutes.

  • Need a convenient hotel near CFN? If you've booked an early flight from Donegal Airport to Dublin Airport, these accommodation options will put you moments from your departure gate:

Arriving at Dublin Airport (DUB)

Getting from Dublin Airport (DUB) to central Dublin

  • Dublin Airport is roughly 21 kilometres from the centre of Dublin. Driving there takes about 30 minutes.

  • When travelling by public transport, expect a journey time of around 2 hours 10 minutes.

When to fly to Dublin Airport (DUB)

  • The quietest month for a flight from Donegal Airport to Dublin Airport is January, while August is the busiest. Pick the ideal time to go to Dublin based on whether you prefer a bustling atmosphere or a more laid-back vibe.

  • When booking your flight from Donegal Airport to Dublin Airport, consider the type of weather you enjoy. July is the warmest month in Dublin, with temperatures ranging from 10ºC (50ºF) to 20ºC (68ºF).

  • January has average temperatures of between 1ºC (34ºF) and 9ºC (48ºF). Look for cheap tickets from CFN to DUB sometime then if you want to travel when it's cooler.

Explore more of Ireland

  • Cork is just one of the many cities in Ireland waiting to be discovered after you've seen Dublin. Around 225 kilometres away to the south-west, popular attractions include Blarney Castle, Fota Wildlife Park and Titanic Experience Cobh.

  • If you're ready to explore another well-known destination in Ireland, consider Tallaght, roughly 10 kilometres south-west of Dublin. Church of the Incarnation, Fettercairn, 3 stuffed bears and Johnson & Perrott Fleet are the start of reasons to visit.

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