Cheap flights from Dublin (DUB) to Donegal (CFN)

Compare Dublin to Donegal flight deals

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

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Flight deals from Dublin to Donegal

Looking for a cheap last-minute deal or the best return flight from Dublin Airport to Donegal Airport? If you want to travel next month, return fares start from $125. Find the lowest prices on one-way and return tickets right here.

Donegal.$122 per passenger.Departing Wed, 23 Sep, returning Fri, 2 Oct.Return flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Dublin on Wed, 23 Sep, arriving in Donegal.Inbound direct flight with Aer Lingus departs from Donegal on Fri, 2 Oct, arriving in Dublin.Price includes taxes and charges.From $122, select.

Donegal.$123 per passenger.Departing Thu, 3 Sep, returning Thu, 10 Sep.Return flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Dublin on Thu, 3 Sep, arriving in Donegal.Inbound direct flight with Aer Lingus departs from Donegal on Thu, 10 Sep, arriving in Dublin.Price includes taxes and charges.From $123, select.

Donegal.$125 per passenger.Departing Sat, 18 Jul, returning Sat, 25 Jul.Return flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Dublin on Sat, 18 Jul, arriving in Donegal.Inbound direct flight with Aer Lingus departs from Donegal on Sat, 25 Jul, arriving in Dublin.Price includes taxes and charges.From $125, select.

Donegal.$127 per passenger.Departing Fri, 14 Aug, returning Sun, 16 Aug.Return flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Dublin on Fri, 14 Aug, arriving in Donegal.Inbound direct flight with Aer Lingus departs from Donegal on Sun, 16 Aug, arriving in Dublin.Price includes taxes and charges.From $127, select.

Donegal.$131 per passenger.Departing Sun, 25 Oct, returning Mon, 26 Oct.Return flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Dublin on Sun, 25 Oct, arriving in Donegal.Inbound direct flight with Aer Lingus departs from Donegal on Mon, 26 Oct, arriving in Dublin.Price includes taxes and charges.From $131, select.

Donegal.$137 per passenger.Departing Tue, 23 Jun, returning Wed, 24 Jun.Return flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Dublin on Tue, 23 Jun, arriving in Donegal.Inbound direct flight with Aer Lingus departs from Donegal on Wed, 24 Jun, arriving in Dublin.Price includes taxes and charges.From $137, select.

Donegal.$137 per passenger.Departing Sun, 28 Jun, returning Wed, 1 Jul.Return flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Dublin on Sun, 28 Jun, arriving in Donegal.Inbound direct flight with Aer Lingus departs from Donegal on Wed, 1 Jul, arriving in Dublin.Price includes taxes and charges.From $137, select.

Donegal.$137 per passenger.Departing Fri, 31 Jul, returning Sat, 1 Aug.Return flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Dublin on Fri, 31 Jul, arriving in Donegal.Inbound direct flight with Aer Lingus departs from Donegal on Sat, 1 Aug, arriving in Dublin.Price includes taxes and charges.From $137, select.

Donegal.$137 per passenger.Departing Thu, 30 Jul, returning Mon, 12 Oct.Return flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Dublin on Thu, 30 Jul, arriving in Donegal.Inbound direct flight with Aer Lingus departs from Donegal on Mon, 12 Oct, arriving in Dublin.Price includes taxes and charges.From $137, select.

Donegal.$137 per passenger.Departing Fri, 26 Jun, returning Mon, 24 Aug.Return flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Dublin on Fri, 26 Jun, arriving in Donegal.Inbound direct flight with Aer Lingus departs from Donegal on Mon, 24 Aug, arriving in Dublin.Price includes taxes and charges.From $137, select.

Donegal.$137 per passenger.Departing Fri, 26 Jun, returning Tue, 1 Sep.Return flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Dublin on Fri, 26 Jun, arriving in Donegal.Inbound direct flight with Aer Lingus departs from Donegal on Tue, 1 Sep, arriving in Dublin.Price includes taxes and charges.From $137, select.

Donegal.$137 per passenger.Departing Sat, 29 Aug, returning Thu, 3 Sep.Return flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Dublin on Sat, 29 Aug, arriving in Donegal.Inbound direct flight with Aer Lingus departs from Donegal on Thu, 3 Sep, arriving in Dublin.Price includes taxes and charges.From $137, select.

Donegal.$171 per passenger.Departing Tue, 8 Dec, returning Sun, 13 Dec.Return flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Dublin on Tue, 8 Dec, arriving in Donegal.Inbound direct flight with Aer Lingus departs from Donegal on Sun, 13 Dec, arriving in Dublin.Price includes taxes and charges.From $171, select.

Donegal.$171 per passenger.Departing Thu, 25 Feb, returning Tue, 9 Mar.Return flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Dublin on Thu, 25 Feb, arriving in Donegal.Inbound direct flight with Aer Lingus departs from Donegal on Tue, 9 Mar, arriving in Dublin.Price includes taxes and charges.From $171, select.

Donegal.$171 per passenger.Departing Fri, 6 Nov, returning Mon, 9 Nov.Return flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Dublin on Fri, 6 Nov, arriving in Donegal.Inbound direct flight with Aer Lingus departs from Donegal on Mon, 9 Nov, arriving in Dublin.Price includes taxes and charges.From $171, select.

Donegal.$171 per passenger.Departing Fri, 12 Mar, returning Mon, 15 Mar.Return flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Dublin on Fri, 12 Mar, arriving in Donegal.Inbound direct flight with Aer Lingus departs from Donegal on Mon, 15 Mar, arriving in Dublin.Price includes taxes and charges.From $171, select.

Find the cheapest month to fly from Dublin to Donegal

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

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Direct flights from Dublin to Donegal

Dublin to Donegal: Alternative routes

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

Donegal

45km from central Donegal

ClosestCheapest

from $122

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Derry

75km from central Donegal

from $143

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Dublin to Donegal: Flight information

The things to know before you go.

Cheapest flight found	$122
Cheapest month to fly	September
Average flight time	1 hr, 8 mins
Most popular airline	Aer Lingus
Average flights per week	51

Finding cheap flights from Dublin to Donegal: Frequently asked questions

How much are return flights from Dublin to Donegal?

The best price we found for a return flight from Dublin to Donegal is $122. 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.

How long does it take to fly from Dublin to Donegal?

1 hour and 8 minutes is the average flight time from Dublin to Donegal.

Which airlines fly direct from Dublin to Donegal?

Aer Lingus, Emerald Airlines and British Airways fly direct from Dublin to Donegal.

How many flights are there a week from Dublin to Donegal?

As of June 2026, there are 51 flights per week flying from Dublin to Donegal.

When is the cheapest time to fly from Dublin to Donegal?

The cheapest month to fly from Dublin to Donegal is usually September.

Which upcoming date is cheapest to fly from Dublin Airport to Donegal Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Dublin Airport to Donegal Airport on Wednesday, 23 September 2026.

Can I get a direct flight from Dublin Airport to Donegal Airport?

Yes – the average flight time is 1 hour and 8 minutes.

How can I find the best flight deal to Donegal?

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 Donegal 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.

When is the best time to book flights to Donegal?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Donegal is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Dublin Airport to Donegal with?

Currently, Aer Lingus offers the cheapest flight tickets to Donegal.

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

The average duration of a direct flight from Dublin Airport to Donegal Airport is 1 hour 10 minutes.
Dublin and Donegal are in the UTC+0 timezone. That means you won't have to adjust your watch after you land.
Each week, there are eight Dublin Airport to Donegal Airport flights. If you prefer to get going early, pick the 11:45 Aer Lingus flight. If you're eager to make the most of your time before flying, the last flight is at 18:50 with Aer Lingus.
Get to the airport on time so you don't miss your DUB to CFN flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid sprinting to your gate.
During popular months like July, you'll want to get to the airport well in advance. Plan to arrive two hours before domestic departures and four hours ahead for international flights when you travel during a peak period in general.
Travelling to Donegal (and then exploring more of Ireland!) is a breeze with Aer Lingus. This popular airline offers direct flights from Dublin Airport to Donegal Airport.
Aer Lingus is the top choice for travellers on this route.
The carrier with the top on-time arrival performance for DUB to CFN flights is Aer Lingus.
If you want to tour a different city along the way, search for a flight with a stopover. To see all your options for tickets from Dublin Airport to Donegal Airport, uncheck 'Direct flights only.' Glasgow Intl Airport is a sought-after stop between DUB and CFN.

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

$57 is currently the lowest price for a one-way Dublin Airport to Donegal Airport flight. A return flight starts at $122. These prices can change based on availability and demand.
To get your hands on cheap tickets from DUB to CFN, book early. Airlines usually offer the most competitive fares when flights are first made available.
Organise your trip for May. That's the cheapest month for flights from Dublin Airport to Donegal Airport. If you're flexible on when you fly, use the 'Whole month' tool to see the lowest price across every month.
You won't have to check every day to find out if fares have gone down when you create a Price Alert. We'll notify you the moment there's a change in price on cheap flights from DUB to CFN.
Select your ideal departure and arrival times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to see the best deals on flights from Dublin Airport to Donegal Airport.

Handy information about Dublin Airport (DUB)

Of the departures from Dublin Airport, 77% land on time at their destination.
To get to Dublin Airport from central Dublin, it takes around 25 minutes if you're planning to drive. This depends on traffic though. It's approximately 11 kilometres from the airport to the city centre.
The trip when using public transport will take about 30 minutes.
Get your break off to a stress-free start by staying near DUB. Whether you're boarding an early flight from Dublin Airport to Donegal Airport or want to avoid feeling rushed, these stays are ideal:

Arriving at Donegal Airport (CFN)

If you're landing on a late Dublin Airport to Donegal Airport flight, nothing beats the convenience of staying close to the terminal. Grab your luggage from the carousel and then be resting shortly after at one of these options near CFN:
Grab a Donegal Airport rental car and discover Donegal and beyond with your own set of wheels. Enterprise, Europcar and Keddy By Europcar are popular outlets to choose from here.
Reserve your vehicle from Donegal Airport at least a few weeks before your trip to lock in the best possible deal. If you're travelling during peak season, it's a good idea to book even earlier.

When to fly to Donegal Airport (CFN)

The quietest month for a flight from Dublin Airport to Donegal Airport is February, while July is the most popular. Pick the ideal time to visit Donegal based on whether you prefer a faster pace or a more relaxed vibe.
Book your flight from Dublin Airport to Donegal Airport for July if you'd like to explore Donegal during its warmest month. You can expect temperatures of between 9ºC (48ºF) and 20ºC (68ºF).
Search for cheap tickets from DUB to CFN in January if you like travelling in cooler conditions. Temperatures are at their lowest around then, ranging between 0ºC (32ºF) and 8ºC (46ºF) on average.

Explore more of Ireland

You've done Donegal, now it's time to discover more of Ireland. Travel around 193 kilometres south-east to Dublin to tick off its must-visit sights. From Guinness Storehouse to Trinity College Library and St. Patrick's Cathedral, you've got a jam-packed schedule ahead.
Cork is another sought-after destination in Ireland and is around 306 kilometres south of Donegal. No journey is complete without visiting Blarney Castle & Gardens, Blarney Castle House(Teach Caisleán na Blarnan) and Blarney Stone.