€20 Find Cheap Flights from Spain to Ireland – Compare and Save

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KAYAK's insights & trends for flights to Ireland

Get data-powered insights and trends into flights to Ireland to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Ireland?

The cheapest ticket to Ireland from Spain found in the last 5 days was to Shannon, at €86 return. The most popular route is Málaga (AGP) to Dublin (DUB) and the cheapest return ticket found on this route in the last 5 days was €88.

How much is a flight to Ireland?

A flight to Ireland costs €187 on average. The cheapest price found on KAYAK in the last 2 weeks was €41 for the route Barcelona-El Prat Airport (BCN) to Dublin (DUB). The most popular routes on KAYAK are Madrid to Dublin which costs €135 on average, and Barcelona to Dublin, which costs €369 on average.

See prices from:

What is the cheapest month to fly from Spain to Ireland?

The cheapest month for flights from Spain to Ireland is December, when tickets cost €66 (return) on average. On the other hand, the most expensive months are August and July, when the average cost of round-trip tickets is €151 and €135 respectively.

What is the cheapest time of day to fly to Ireland?

The cheapest time of day to fly to Ireland is generally in the evening, when retur flights cost €99 on average. Morning departures are around 52% more expensive than evening flights, on average. The most expensive time of day to fly to Ireland is generally at night, which is peak travel time and where the average cost of a ticket is €193.

How far in advance should I book a flight from Spain to Ireland?

To get a below-average price on a flight from Spain to Ireland, you should book around 3 weeks before departure, which saves you about 48% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Which is the cheapest airport to fly into in Ireland?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Ireland is Knock Intl Airport (NOC), with an average flight price of €115.

Good to know

Low season

January

Cheapest flight

€20
Best time to beat the crowds (44% less expensive on average)
Most popular time to fly (26% more expensive on average)
Flight from Alicante to Dublin

Flights from Spain to Ireland: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from Spain to Ireland 
Verified travelerFlew with Aer Lingus-May 2026
The lines to get in and out of Spain, may be a bit long, so prepare for that!
Verified travelerFlew with Aer Lingus-Dec 2025
Bring snacks. Double check with the airline that everything is in order. Never go through large airports like Heathrow with any layover that’s less than 3 hours. Small airports are preferred for layover like Dublin or Brussels.
Verified travelerFlew with Aer Lingus-Aug 2024
Put an AirTag or other tracking device in your bag.

FAQs for booking flights from Spain to Ireland

  • How does KAYAK find such low prices on flights from Spain to Ireland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Spain to Ireland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Spain to Ireland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Spain to Ireland is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Spain to Ireland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Spain to Ireland with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Spain to Ireland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Spain to Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to Ireland?

    Based on KAYAK data, the cheapest day to fly to Ireland is Thursday when return tickets can be as cheap as €139. On the other hand, the most expensive day to fly is Wednesday, when return prices are €355 on average.

Reviews of the top 3 airlines flying from Spain to Ireland

 
Need help choosing which airline to fly with from Spain to Ireland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
Iberia ExpressOverall score based on 104 reviews
6.4Entertainment
7.4Boarding
7.9Crew
7.1Comfort
6.2Food
Airline reviews

Fine, the process or boarding was a bit slow but the flight itself was quick and smooth. Not over booked and pleasant overall

8.0 ExcellentIsora, Mar 2024
Read more Iberia Express reviews

Fine, the process or boarding was a bit slow but the flight itself was quick and smooth. Not over booked and pleasant overall

More check-in counters or faster processing. I arrived early but got to the gate just in time to board the flight, I didn't even have time to use the bathroom. The plane was really dirty, encrusted dirt is everywhere and the plane smelled bad when I entered.

I couldnot board the flight since my previous flight from Lisbon to Madrid arrived too late.

The flight was on the time and everything was very smoothi

Asientos y tener espacio para maleta de mano y no tener que facturar

Access to Lounge was not accessible in Madrid even though Aer Lingus Customer Support and Check in agent thought it should be. They could not figure out why the ticket was not scanning correctly in the lounge. In the end they blamed it on it being a 3rd party purchased ticket which makes me hesitant to buy from Kayak in the future.

It was great all the airline staff were polite friendly and helpful. Flight was good. The one area for improvement would be to have chargers on every plane. We had these on the way over but not the way back. Especially as you are not allowed to use powerbanks anymore.

Boarding was messy and the flight was delayed an hour

Flight was delayed no information given really . No food whatsoever on the plane . I think you should be able to put that on the app so people have a chance to buy food bring it with them . They said plane was very busy on way over but there should be enough for both flights as we pay full price for the service. No information or very slow on the app about the delays . Staff were lovely it’s not their fault so company not fare to passengers or staff .

Everything was great. I liked that one of the crew noticed my son's sunflower lanyard and asked them to let them know if we needed anything. That was lovely.

The check in process at the front desk felt slow and it was frustrating that we could not check in online. Everything about the actual flight was great, including very kind flight attendants and a nice larger bathroom. Only thing is that it was very cold in the plane!

The folks and flights were fantastic. I unfortunately wasn’t able to order a meal that I could eat (I’m gluten free) because I got my ticket through kayak, but they tried their best to find something to help me get through the long flight and I’ll forever remember their kindness.

We left 2 1/2 hours late. It wasn't the airlines fault but they did nothing to help the situation. Even water had a price tag. The next flight was better.

The flight was okay however, for whatever reason they were not able to check me in for all 3 flights that I had booked through them creating a big problem when I landed in Toronto, in addition my luggage never made it to Toronto as well. So overall experience was not good

I was pleasantly surprised - it has been awhile since I traveled with them - other than being delayed leaving Malaga everything ran very smoothly- yes I would travel with aer Lingus again and yes I would recommended

Huge wait to board after waiting for 2.5 hours delayed flight

Had no disruptions or delays. Did not order any food.

I liked almost everything (e.g. ease of booking, price, punctuality, efficiency, friendliness, courtesy). A slam landing in Dublin airport took some of the gloss off it, though. Being able to paste here the text of the review of the same flight that I just wrote for Ryanair would make me feel better about Kayak too.

Staff were very professional. Much better than the outgoing flight from Dublin. Seat cushions were practically non existent. Making for a very uncomfortable flight.

They were extremely unprofessional and unhelpful at check in. They did not understand laws related to Spanish residents flying with family It was very discriminatory the way we were treated.

all fine - did not have food - there was no entertainment

Delayed flight. Received notice from ryanair by email and via app but no such timely information available at airport from monitors or staff

This was yet another excellent experience thanks to Ryanair, it's ground crew, cabin crew and air crew. Although our flight was delayed by about 15 minutes due to the late arrival of the inbound flight, the crew did their best to successfully minimise the delay with courtesy and efficiency. I also commend Ryanair for its choice of destination airport in this instance: Seve Ballesteros Airport in Santander is a modern, compact, well-kep and well-organised airport, where passing through security and passport control was a doodle thanks to its friendly and efficient staff. So take a bow, Ryanair - and keep it up!

Everything went according to plan. Check in, boarding etc all were very efficient.

Boarding at Arrecife was commended way too early. Far too long for elderly to be kept standing on their feet. Otherwise we’ll done to all staff.

More options for your flight to Ireland

Complete your trip to Ireland with a hotel stay or car hire