Porto to Shannon
Porto to Shannon is cheapest in October. March, the most expensive month we measured, costs about 151 € more.
Porto to Shannon is 1,274 km flown direct. Every fare we measured came from Ryanair.
That comes from pricing 60 departure dates across 8 months. Every figure below is a fare we measured on the day shown, not a live quote. When we have nothing fresh to say about a route, its page stops existing.
What is a good price from Porto to Shannon?
Anything at or below the quarter mark beats three in four of the 60 one-way fares we measured here. Above the median, wait or move the date.
seen 27 Sep 2026
How far ahead do the cheap fares sit?
When we measured, the cheapest quarter of fares sat between 18 and 232 days before departure, closer in than the market as a whole. The cheap fares were on nearer dates, not months away, when we looked.
a snapshot of where the cheap seats sat, seen 27 Sep 2026
Which day of the week is cheapest?
On average, Wednesday departures came out lowest and Sunday highest, a spread of about 117 €. The day matters less than the month here: pick the month first, then the day.