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Porto to Dublin flights in December 2026 from $24 OPO → DUB

Porto Airport (OPO) → Dublin Airport (DUB)

For departures in December 2026, the cheapest return found recently is $77 with Ryanair, 10 Dec – 12 Dec, found 5 days ago. The cheapest one-way found recently is $24 with Ryanair, 18 Dec, found 2 days ago.

Return

In December 2026, the cheapest return fare on each of 8 departure dates is usually $87 to $210. Across all 9 departure dates we hold on this route, it is usually $88 to $209.

Cheapest return found recently

$77

10 Dec – 12 Dec · Ryanair

Porto Airport (OPO) → Dublin Airport (DUB)

out nonstop, back nonstop

found 5 days ago

See prices for these datesCheck today's price

It is also the cheapest return we hold, of any age.

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
5 Dec – 12 Dec$77Ryanairout nonstop, back nonstopfound 6 days agoSee prices for these dates
10 Dec – 12 Dec$77Ryanairout nonstop, back nonstopfound 5 days agoSee prices for these dates
7 Dec – 12 Dec$90Ryanairout nonstop, back nonstopfound 6 days agoSee prices for these dates
3 Dec – 13 Dec$189KLMout 1 stop, back 1 stopfound 6 days agoSee prices for these dates
13 Dec – 23 Dec$206Ryanairout nonstop, back 2 stopsfound 6 days agoSee prices for these dates

Every date we hold

8 departure dates

3 Dec – 13 Dec: $189, found 6 days ago5 Dec – 12 Dec: $77, found 6 days ago7 Dec – 12 Dec: $90, found 6 days ago10 Dec – 12 Dec: $77, found 5 days ago13 Dec – 23 Dec: $206, found 6 days ago14 Dec – 19 Dec: $211, found 6 days ago15 Dec – 20 Dec: $209, found 6 days ago16 Dec – 23 Dec: $231, found 6 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
3 Dec – 13 Dec$189KLMPorto Airport (OPO) → Dublin Airport (DUB)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates
5 Dec – 12 Dec$77RyanairPorto Airport (OPO) → Dublin Airport (DUB)out nonstop, back nonstopfound 6 days agoSee prices for these dates
7 Dec – 12 Dec$90RyanairPorto Airport (OPO) → Dublin Airport (DUB)out nonstop, back nonstopfound 6 days agoSee prices for these dates
10 Dec – 12 Dec$77RyanairPorto Airport (OPO) → Dublin Airport (DUB)out nonstop, back nonstopfound 5 days agoSee prices for these dates
13 Dec – 23 Dec$206RyanairPorto Airport (OPO) → Dublin Airport (DUB)out nonstop, back 2 stopsfound 6 days agoSee prices for these dates
14 Dec – 19 Dec$211RyanairPorto Airport (OPO) → Dublin Airport (DUB)out nonstop, back nonstopfound 6 days agoSee prices for these dates
15 Dec – 20 Dec$209RyanairPorto Airport (OPO) → Dublin Airport (DUB)out nonstop, back nonstopfound 6 days agoSee prices for these dates
16 Dec – 23 Dec$231IberiaPorto Airport (OPO) → Dublin Airport (DUB)out 1 stop, back 2 stopsfound 6 days agoSee prices for these dates

Which month looks cheapest?

December 2026 is the cheapest month — from $77.

November 2026From $881 departure date21 Nov – 24 Nov · found 2 days agoSee prices for these dates
December 2026From $77Cheapest seen8 departure dates5 Dec – 12 Dec · found 6 days agoSee prices for these dates

One-way

We hold one-way fares on only 1 departure date in December 2026, too few to say what one usually costs.

Cheapest one-way found recently

$24

18 Dec · Ryanair

Porto Airport (OPO) → Dublin Airport (DUB)

nonstop

found 2 days ago

Open this tripCheck today's price

It is also the cheapest one-way we hold, of any age.

FareTell may earn a commission when you book through a partner.

The cheapest dates in December 2026

DatesFromAirlineStopsFound
18 Dec$24Ryanairnonstopfound 2 days agoOpen this trip

Every date we hold

1 departure date

See every date as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
18 Dec$24RyanairPorto Airport (OPO) → Dublin Airport (DUB)nonstopfound 2 days agoOpen this trip

Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work