€22 Find Cheap Flights to Portugal – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ireland to Portugal departing on 29/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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1 adult, Economy, 0 bags

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Flight Deals

Best Portugal Flight Deals

Cheapest return prices found by our users on KAYAK in the last 72 hours
Lisbon
Lisbon1 stop€116
Faro
Farodirect€53
Porto
Portodirect€53
Funchal
Funchaldirect€88
Ponta Delgada
Ponta Delgada1 stop€221
Lajes
Lajes1 stop€305
Porto Santo
Porto Santo1 stop€323
Lisbon
Lisbon1 stop€116
Faro
Farodirect€53
Porto
Portodirect€53
Funchal
Funchaldirect€88
Ponta Delgada
Ponta Delgada1 stop€221
Lajes
Lajes1 stop€305
Porto Santo
Porto Santo1 stop€323

Book Cheap Portugal Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights to Portugal that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to Portugal

Thu, 3 Sep - Wed, 9 Sep
Ryanair Logo
20:10 - 22:45
ORK
-
FAO
2h 35mdirect
Ryanair Logo
06:05 - 08:45
FAO
-
ORK
2h 40mdirect
€53Ryanair
Mon, 12 Oct - Wed, 14 Oct
Ryanair Logo
16:10 - 18:25
SNN
-
OPO
2h 15mdirect
Ryanair Logo
22:55 - 01:10
OPO
-
SNN
2h 15mdirect
€53Ryanair
Sun, 16 Aug - Wed, 26 Aug
Ryanair Logo
20:30 - 23:05
ORK
-
FAO
2h 35mdirect
Ryanair Logo
06:05 - 08:45
FAO
-
ORK
2h 40mdirect
€55Ryanair
Thu, 20 Aug - Wed, 26 Aug
Ryanair Logo
20:10 - 22:45
ORK
-
FAO
2h 35mdirect
Ryanair Logo
06:05 - 08:45
FAO
-
ORK
2h 40mdirect
€56Ryanair
Fri, 28 Aug - Mon, 31 Aug
Ryanair Logo
20:55 - 23:30
ORK
-
FAO
2h 35mdirect
Ryanair Logo
06:45 - 09:25
FAO
-
ORK
2h 40mdirect
€57Ryanair
Thu, 27 Aug - Mon, 31 Aug
Ryanair Logo
20:10 - 22:45
ORK
-
FAO
2h 35mdirect
Ryanair Logo
06:45 - 09:25
FAO
-
ORK
2h 40mdirect
€58Ryanair
Wed, 26 Aug - Tue, 1 Sep
Vueling Logo
21:30 - 13:10
DUB
-
OPO
15h 40m
1 stop
Vueling Logo
22:00 - 09:20
OPO
-
DUB
11h 20m
1 stop
€87Vueling
Sat, 19 Sep - Fri, 25 Sep
Multiple Airlines Logo
23:00 - 18:45
SNN
-
FAO
19h 45m
1 stop
Multiple Airlines Logo
06:10 - 08:55
FAO
-
SNN
2h 45mdirect
€88Multiple Airlines
Wed, 19 Aug - Wed, 26 Aug
Vueling Logo
21:30 - 08:00
DUB
-
OPO
10h 30m
1 stop
Vueling Logo
22:00 - 09:05
OPO
-
DUB
11h 05m
1 stop
€92Vueling
Wed, 19 Aug - Wed, 26 Aug
Vueling Logo
21:30 - 08:00
DUB
-
OPO
10h 30m
1 stop
Vueling Logo
22:00 - 09:05
OPO
-
DUB
11h 05m
1 stop
€100Vueling
Booking Insights

KAYAK's insights & trends for flights to Portugal

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

What is the cheapest flight to Portugal?

These are the best return prices found by users searching on KAYAK in the last 5 days.

The cheapest ticket to Portugal from Ireland found in the last 5 days was to Porto, at €65 return. The most popular route is Dublin (DUB) to Faro (FAO) and the cheapest return ticket found on this route in the last 5 days was €110.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ireland to Portugal, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ireland to Portugal is January, when tickets cost €18 (return) on average. On the other hand, the most expensive months are May and July, when the average cost of round-trip tickets is €239 and €204 respectively.

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

The average price for all round-trip flights from Ireland to Portugal depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Portugal is generally in the afternoon, when retur flights cost €80 on average. Morning departures are around 23% cheaper than evening flights, on average. The most expensive time of day to fly to Portugal is generally at night, which is peak travel time and where the average cost of a ticket is €988.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Portugal, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from Ireland to Portugal, you should book around 2 weeks before departure, which saves you about 34% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Which is the cheapest airport to fly into in Portugal?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Portugal is Faro Airport (FAO), with an average flight price of €149.

Good to know

Low seasonNovember
Cheapest flight€22
Best time to beat the crowds (10% less expensive on average)
Most popular time to fly (10% more expensive on average)
Flight from Knock to Faro

FAQs - booking Portugal flights

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

    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 Ireland to Portugal.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ireland to Portugal 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 Ireland to Portugal?

    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 Ireland to Portugal 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 Ireland to Portugal?

    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 Ireland to Portugal 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 Portugal?

    Based on KAYAK data, the cheapest day to fly to Portugal is Wednesday when return tickets can be as cheap as €309. On the other hand, the most expensive day to fly is Thursday, when return prices are €672 on average.

Top tips for finding cheap flights to Portugal

  • Looking for cheap airfare to Portugal? 25% of our users found return tickets to Portugal for the following prices or less: From Cork €119, from Shannon €125, from Dublin €155
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Portugal flight deals.

Reviews of the top 3 airlines flying to Portugal

 
Need help choosing which airline to fly with from Ireland to Portugal? 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.
7.3
Aer LingusOverall score based on 1648 reviews
7.2Comfort
8.1Crew
7.4Boarding
6.6Food
7.0Entertainment
Airline reviews

A special shout-out to one of the check-in staff at DUB yesterday noon. We had to use the "Closing Flights" counter and we met, hands down, the most efficient person - able to resolve several issues in the matter of minutes, while remaining polite and calming everyone down. Great job, Aer Lingus!

10.0 ExcellentAnonymous, Jul 2026
DUB - MCO
Read more Aer Lingus reviews

A special shout-out to one of the check-in staff at DUB yesterday noon. We had to use the "Closing Flights" counter and we met, hands down, the most efficient person - able to resolve several issues in the matter of minutes, while remaining polite and calming everyone down. Great job, Aer Lingus!

Air Lingus was in no hurry to get us on the plane as sat at the gate a long time before they boarded us. Then they leave us on the tarmac for an hour. They were no help to let me know what I needed to do to get home. I had to navigate London Heathrow with 0 help from them.

The delay was very discouraging--- having to wait in the airport during the heat wave after a long flight from the US was a challenge.

Everything was great!! I had no problems!! I would fly Aer Lingus again! 🥰

From Rome to Dublin if you want any refreshments you have to pay for them, Not used to this as we typically get soft drinks and a little snack on a 3hour flight in the US.

Boarding was fine, difficult to understand the guy over the speaker though so we were unsure when exactly to board until they updated the monitor by the gate. Flight itself was fine, nice flight attendants, seats were comfortable enough, good selection of entertainment on the screens. Other airlines at a similar price point have included wifi though, at a minimum messaging, for free, so that was a little disappointing to not have that. But otherwise fine. Food was pretty decent, nice hot meal, good drink selection, nice snacks. Bathrooms were ok, could've been cleaned a little more often, but they were never bad.

Vegetarian food option was very poor. Effectively, overcooked rice ("risotto"). Zero protein which is always disappointing with no vegetables and poorly seasoned. Basically had lots of carbs on 6-hour flight. Not acceptable for business class in 2026. Flight was otherwise very good.

Excellent flight and crew. Boarding at Dublin Airport was a very difficult trying to find the right gate.

Delightful flight, ahead of time with a super crew, thanks

I had a great experience. I wasn’t sure what to expect but the crew helped me check my bags and made sure I got in the correct line to board. It was a bit of a walk to my gate so arrive early. I would recommend securing a flight that includes checking in your bag if you remotely think your baggage is over 10kg/22lbs. Be safe and upgrade unless you are carrying a backpack or weekend type baggage.

Everything was good with Tap Air Portugal. It was Logan Airport that was a problem. The fuel system was down and delayed my 10:40 boarding. I wasn't able to board my flight until 2:00 am...after that my flights were great.

Seats had no charging ports. Our plane was rerouted to Boston and we were landed on the tarmac with no food or water for 3 hours (illegal). We then waited in the airport for 3 hours while staff had no information regarding where our bags were or when we were going to get them.

Very poor communications during flight. Our flight was diverted with no communication. We waited for hours in the terminal for word on how we would get to Newark No chargers on the plane Won’t be flying them again

This is a terrible airline. Never again. We got diverted for weather and are sitting on the tarmac now for hours. No updates. No water. No food. This is insane.

Not have my bag forced to be checked when I had a carry on included on my ticket. Staff was very rude to me for asking why they were doing this. I was told there was no more room for carry ons but there was plenty of space in the overhead compartments

There were no delays. I almost lost my connection because of the new EES system

It was a game of hurry up and wait. As advised we arrived at the terminal e hours prior to boarding. We waited about 45 minutes before anyone showed up at the check-in terminal. When someone does arrive she rearranges the line and we think we are going to be checked in. Nope. She leaves and we wait another 15 min. before anyone else shows up. One person got behind her computer and about 15 min later started to check the first person in . Then one more person arrives spends 10-15 behind the desk and then she starts checking in someone. Two more staff arrive and another 10 min or so they are ready to begin checking in people. We have a 11:50 international flight and it is 9:45. And then on of the agents, closes her desk and leaves. And every leg of our flight was delayed; we waited at terminals, we waited to take off, we waited to deplane. After arriving in Porto within 10min of our connection schwduled to take off, we were told to go to the last bus. We waited on the bus (until all the other busses had left) and then we waited another 10 min or so for one of the ground controllers who wanted a ride with us but was busy with a woman who needed the handicap van. He did not help her to the van, but was standing with her and talking with hher. We were rushed through border control and told not to wait for the rest of our party only to get on the plane and then have to wait another 45 min before we were cleared for take off. The waits were not 10 or 20 minutes, they were 35-55 minute waits each time. Miraculously, we made it back only 2 1/2 hours later than we we were originally scheduled. Given the nonchalance and seaming disinterest from many of the staff, I was expecting that we would not get on until much later than that.

The crew was excellent. What I did not enjoy was the food. I have taken many international flights and this was on the low end. Otherwise the trip was fine.

Seats were the most uncomfortable seats i ever experienced on a flight to Europe from Boston. It was a waist of money in buying premium seats for top dollars. I want my money back for what i paid extra for my seats. Awful conditions!

An hour late. Plus literally everything was unavaiable for food and beverage service. Will never fly again. Ever.

On time departure; arrived early into Faro. Air Malta operating flight, crew friendly and efficient.

I didn't know that all connecting flights require online check-in two hours in advance, so I was fined 55 euros. This is a lesson learned.

There isn’t any entertainment. The food and drink was available for a price. I didn’t buy any.

It would be nice to have power to charge phone.

They boarded us but somehow did not manage to record us boarding, so rather than check if we were onboard they removed our bags from the aircraft. I got a call from Ryanair staff in Dublin when I landed in Madiera asking me where I was!!! When I said I was in Madiera I was told what had happened. Our bags were to be sent to Madiera the next day via Manchester, they didn’t arrive. They are now due to arrive two days before we leave. I don’t see myself using Ryanair again unless I am forced to and even then I may just refuse.

The flight arrived within 15 minutes of schedule. We hate the cattle-like boarding process seen often in Europe. After your boarding pass is checked by the airline staff, you wait standing up in an area with no seating for several minutes.

Great flight, departed only 10 mins behind schedule off the aircraft and through security in less than 15 minutes. Love flying from Cardiff so easy a quick from entrance to duty free in less than 10 minutes 😀

I haven't had a ok flight with Ryanair in so long!

Ryanair is the worst airline in Europe and easily one of the worst in the planet

Usual RyanAir flight but disembarking was poor, no rear steps. The Faro Airport required lots of up step and down steps, no elevator Getting through passport control took 50 minutes in the EU line

Everything you need to know for your flight to Portugal

Cabin class types available on flights to Portugal

Cabin classes available on flights to Portugal. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.