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Cheap flights from Dublin to Donegal

DUB — CFN
4 Jun — 11 Jun1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Dublin to Donegal

Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to Donegal (CFN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 5 May 2026.

Popular in

March

Cheapest in

September

Average price

£70
Highest demand for flights based on searches. 5% potential increase in price (£3 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£3 potential savings vs. average return price).
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Average for round-trip flights in May 2026
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Best time to book a flight from Dublin to Donegal

Have a flexible travel schedule? Discover the best time to fly to Donegal from Dublin with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Dublin to Donegal

What is the cheapest month to book a flight from Dublin to Donegal?

Currently, September is the cheapest month in which you can book a flight from Dublin to Donegal (average of £60). Flying from Dublin to Donegal in March is currently the most expensive (average of £114). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DUB to CFN?

Find hourly flight availability from Dublin to Donegal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 5 May 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Dublin to Donegal as you normally would.

Reviews of airlines servicing Donegal

Get insights into the airlines that provide service to Donegal. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Donegal. Reviews last updated 5 May 2026.
Get a feel of what it's like to fly with Aer Lingus from Dublin to Donegal by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.3
Good
1,542 reviews
Check prices

Entertainment

7.0

Comfort

7.2

Boarding

7.4

Crew

8.1

Overall

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.
Aer Lingus
7.3
Good
1,542 reviews
Aer Lingus
7.3
Good
1,542 reviews
Check prices

Entertainment

7.0

Comfort

7.2

Boarding

7.4

Crew

8.1

Overall

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.

Related info for your journey

Find useful and relevant information for your journey from Dublin to Donegal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Dublin to Donegal flight route?

    The Dublin to Donegal flight path was viewed by 6 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What is the cheapest airline to fly from Dublin to Donegal round-trip?

    Aer Lingus, at £49, was found to be the cheapest airline from Dublin to Donegal.. This flight start at 38% lower than the current average price 3 months from now.

  • What are the most reliable airlines from Dublin to Donegal?

    The top 3 most reliable airlines when flying from Dublin to Donegal are Aer Lingus (0%), Emerald Airlines (0%) and British Airways (0%).

  • Can I find deals for flights from Dublin to Donegal that include hotel bookings?

    Yes. In addition to deals on Dublin to Donegal flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Dublin to Donegal?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dublin to Donegal.

  • Can I find deals for business class flights from Dublin to Donegal?

    Yes. Cheapflights offers flight deals from Dublin to Donegal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Dublin to Donegal?

    Currently, September is the cheapest month in which you can book a flight from Dublin to Donegal (average of £60). Flying from Dublin to Donegal in March is currently the most expensive (average of £114). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Donegal?

Book flights to Donegal if you plan to visit one of these locations
Letterkenny
Bundoran
Killybegs

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Top airline flying from Dublin to Donegal

Discover the top airline that operate flights from Dublin to Donegal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 5 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£49Average£68FlexibilityNo cancel feeOn-timeN/A
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How does Cheapflights help users find flights from Dublin to Donegal?

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Can Cheapflights find flights from Dublin to Donegal with no change fees?

Need flexible booking options for your flight to Donegal from Dublin? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Dublin to Donegal become cheaper?

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