€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 27/8. 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.
1 adult
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
Lisbondirect€126
Faro
Farodirect€54
Porto
Portodirect€64
Funchal
Funchaldirect€96
Ponta Delgada
Ponta Delgada1 stop€289
Lajes
Lajes1 stop€305
Porto Santo
Porto Santo2 stops€242
Lisbon
Lisbondirect€126
Faro
Farodirect€54
Porto
Portodirect€64
Funchal
Funchaldirect€96
Ponta Delgada
Ponta Delgada1 stop€289
Lajes
Lajes1 stop€305
Porto Santo
Porto Santo2 stops€242

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

Sun, 23 Aug - Tue, 1 Sep
Ryanair Logo
19:05 - 21:50
SNN
-
FAO
2h 45mdirect
Ryanair Logo
21:40 - 00:25
FAO
-
SNN
2h 45mdirect
€54Ryanair
Thu, 20 Aug - Fri, 28 Aug
Ryanair Logo
20:10 - 22:45
ORK
-
FAO
2h 35mdirect
Ryanair Logo
06:20 - 09:00
FAO
-
ORK
2h 40mdirect
€58Ryanair
Wed, 22 Jul - Thu, 23 Jul
Ryanair Logo
18:45 - 21:30
SNN
-
FAO
2h 45mdirect
Ryanair Logo
07:35 - 10:20
FAO
-
SNN
2h 45mdirect
€60Ryanair
Sun, 30 Aug - Wed, 2 Sep
Ryanair Logo
19:05 - 21:50
SNN
-
FAO
2h 45mdirect
Ryanair Logo
21:55 - 00:40
FAO
-
SNN
2h 45mdirect
€61Ryanair
Sun, 20 Sep - Wed, 23 Sep
Ryanair Logo
20:30 - 23:05
ORK
-
FAO
2h 35mdirect
Ryanair Logo
06:05 - 08:45
FAO
-
ORK
2h 40mdirect
€61Ryanair
Tue, 14 Jul - Thu, 23 Jul
Ryanair Logo
18:30 - 21:15
SNN
-
FAO
2h 45mdirect
Ryanair Logo
07:35 - 10:20
FAO
-
SNN
2h 45mdirect
€62Ryanair
Sun, 23 Aug - Fri, 28 Aug
Ryanair Logo
20:30 - 23:05
ORK
-
FAO
2h 35mdirect
Ryanair Logo
06:20 - 09:00
FAO
-
ORK
2h 40mdirect
€62Ryanair
Tue, 14 Jul - Thu, 23 Jul
Ryanair Logo
18:30 - 21:15
SNN
-
FAO
2h 45mdirect
Ryanair Logo
07:35 - 10:20
FAO
-
SNN
2h 45mdirect
€66Ryanair
Mon, 7 Sep - Fri, 11 Sep
Multiple Airlines Logo
18:55 - 18:45
NOC
-
FAO
23h 50m
1 stop
Multiple Airlines Logo
06:05 - 09:00
FAO
-
NOC
2h 55mdirect
€100Multiple Airlines
Mon, 20 Jul - Mon, 27 Jul
Multiple Airlines Logo
21:00 - 23:15
DUB
-
FAO
26h 15m
2 stops
Multiple Airlines Logo
07:50 - 10:45
FAO
-
DUB
2h 55mdirect
€101Multiple Airlines
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 72 hours.

The cheapest ticket to Portugal from Ireland found in the last 72 hours was to Funchal, at €71 return. The most popular route is Dublin (DUB) to Lisbon (LIS) and the cheapest return airline ticket found on this route in the last 72 hours was €132.

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 €154 (return) on average. On the other hand, the most expensive months are August and May, when the average cost of round-trip tickets is €275 and €252 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 €79 on average. Morning departures are around 17% 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 €935.

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 4 weeks before departure, which saves you about 46% 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 Porto Airport (OPO), with an average flight price of €102.

Good to know

Low seasonNovember
Cheapest flight€22
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly (20% more expensive on average)
Flight from Cork 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 Sunday when return tickets can be as cheap as €334. On the other hand, the most expensive day to fly is Thursday, when return prices are €682 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 Knock €80, from Cork €120, from Dublin €130
  • 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 1599 reviews
7.0Entertainment
8.1Crew
7.4Boarding
7.2Comfort
6.7Food
Airline reviews

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.

8.0 ExcellentAnonymous, Jun 2026
DUB - BOS
Read more Aer Lingus reviews

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.

Small plane. Tight seating . What can one say except that it was fast!

Flight crew was very cold and stood around a lot talking to each other.

I sat in the first row behind first class. There was plenty of legroom. The entertainment was great. I saw two excellent movies and one episode of a sitcom. Also enjoyed the flight tracker.

On time, only a little turbulence, very competent and caring attendants. Clear information.

The flights are literally always delayed arriving, boarding and taking off so they are always late for the connection. I planned ahead so I was okay but many others aren't. The food was terrible. The staff was very pleasant. I appreciate boarding back to front.

On a four hour delayed flight now on seats back end of the plane instead front-

My issue is with the SkyWest terminal. The flight was not listed on the main airport flight screen list, and I had to do a Google search to locate the terminal and gate. We had to ask several airport employees where to locate the phantom gate. The airport did not provide adequate signage and was confusing. When we arrived, there was one vendor providing services that quickly closed, leaving zero options for food and drink while we waited hours for our delayed flight. The crew that assisted with check-in and boarding was VERY friendly.

Economy seats a bit small but other than that it was all good.

Checked in ok for 3 flights at the airport check-in desk, but apparently I was not checked in to my connecting flights even though I was assured that I was and had seats on all 3 flights. Aer Lingus departure was also delayed for 1.5 hours which gave no time to collect bags to go through customs.

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!

On the seat map for this flight with TAP was shown a business class configuration of 2 rows/8 seats. To my surprise, 4 rows/24 seats being the middle is kept empty, old European type. I chose seat 2F, the the leg room economy dimension. This is not what I paid for. Disappointed!

Boarding felt a little chaotic as everyone was waiting around the gate. Food was great, service was good.

The passport control process in Lisbon ranks as a 1 on a 1 to 5 scale. Terrible. In line 2 hours and still missed our first flight. Next day, 1.5 hours but we made the flight. The Business Class food was poor. Unidentifiable. Not tasty at all. Unacceptable in BC. Attendants were adequate. Flight left late and arrived late. After this trip, we will not be flying TAP nor will we be connecting through Lisbon.

Flight attendants in business class were rather indifferent While in second leg operated by Portugalia TAP subsidiary were outstanfy

Great service overall. One of the best international flight experiences Ive had.

The chicken was so dry it was impossible to eat. No substitute was offered. The port to charge my phone was broken and all I got was a shrug from the crew. The entertainment system was glitchy and subtitles didn’t load. Crew seemed fully uninterested and unfriendly.

The flight crew were absolute rock stars. When they came to the gate they looked like royalty, so chic. They also were extremely kind. Food was good and I loved the lack of plastic waste. The flight was lovely and smooth.

We were unable to check in due to technical problems on TAP’s end. The flight was delayed forty minutes with no reason given. We received timely notice of the flight delay. We were also notified of a gate change. The new gate was at a different terminal. When we got to the new terminal, we learned that we had to go back to the old terminal first to check in. This information should have been included along with the gate change notification. Also unexplained, the steward skipped us when offering breakfast.

Although our departure (DUB) was slightly delayed we reached our destination (LBA) ahead of schedule. The price was very competitive too (around €100 return). Plus, the departure times for both legs were very good: 13:05 and 15:10, respectively. I gave a neutral rating for Food and Entertainment because I didn't avail of either.

Just pushing back from gate now. Boarded into fourth aircraft with 13 hour delay to scheduled departure. Crappy experience.

Notified as to why there’s a delay with our flight.

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

Shady baggage policy that forces you to pay more money at the gate, even after you checked your bag dimensions during the bag drop. Will never fly again with this airline.

Food and entertainment were not available, so my rating on those items isn't actually correct. There should be a "Not relevant" or "Didn't use it" option.

Guide passenger if fhey board from front or back door cause it was a total mess

Buy-on-board through the app is a great feature!

Flying from Newquay was an absolute dream! Would 100% recommend flights from there!

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

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.