50 € Cheap Flights from Shannon to Porto

Compare Shannon to Porto flight deals

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Flight deals from Shannon to Porto

Looking for a cheap last-minute deal or the best return flight from Shannon Airport to Porto Airport? If you want to travel next month, return fares start from 66 €. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Shannon to Porto

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Shannon to Porto flights are currently cheapest in September.

Direct flights from Shannon to Porto

Shannon to Porto: Alternative routes

Compare routes from Shannon to Porto below. You may find an airport to fly into that's cheaper, faster, or easier than Porto.

Shannon to Porto: Flight information

The things to know before you go.
Cheapest flight found50 €
Cheapest month to flySeptember
Average flight time2 hrs, 15 mins
Most popular airlineRyanair
Average flights per week3

Finding cheap flights from Shannon to Porto: Frequently asked questions

The best price we found for a return flight from Shannon to Porto is 50 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 15 minutes is the average flight time from Shannon to Porto.
Ryanair flies direct from Shannon to Porto.
As of July 2026, there are 3 flights per week flying from Shannon to Porto.
The cheapest month to fly from Shannon to Porto is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Shannon Airport to Porto Airport on Sunday, 6 September 2026.
Yes – the average flight time is 2 hours and 15 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Porto but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Porto is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Ryanair offers the cheapest flight tickets to Porto.

Flying from Shannon Airport (SNN) to Porto Airport (OPO): what you need to know

  • Book a direct flight from Shannon Airport to Porto Airport and you'll be travelling for an average of 2 hours 15 minutes.

  • Porto's timezone is UTC+0, which is the same as Shannon.

  • For a smooth journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This way, you'll have plenty of time to catch your SNN to OPO flight.

  • Travelling during a peak time like June? Public holidays and other popular seasons can lead to longer queues at security. Be extra cautious and get there up to four hours ahead of an international flight and two hours before a domestic departure.

  • Ryanair has direct flights from Shannon Airport to Porto Airport. Book with this popular airline, then get ready to check out the sights in Porto — and maybe even more of Portugal if your schedule allows.

  • Ryanair has the highest passenger demand on this route.

  • With a dependable 87.5% of services arriving as scheduled, Ryanair is the most punctual carrier operating SNN to OPO flights.

  • If you want to split up your journey, simply deselect 'Direct flights only' when searching for your ticket from Shannon Airport to Porto Airport. Here are the most popular stopovers between SNN and OPO:

    • London Gatwick Airport

    • Palma - Majorca Airport

    • London Stansted Airport

How to find the cheapest flights from Shannon Airport (SNN) to Porto Airport (OPO)

  • The cheapest price we've seen for a one-way Shannon Airport to Porto Airport flight is 25 €. A return fare right now is 50 €. Depending on the availability and when you book, these fares may change.

  • It's usually smart to book ahead of time if you want to find cheap tickets from SNN to OPO. That's because flight prices are based on demand, which tends to increase closer to departure.

  • May is the cheapest month for flights from Shannon Airport to Porto Airport. If you prefer to travel during a different time of year, the 'Whole month' tool will give you the lowest airfares across every month.

  • Picking up cheap flights from SNN to OPO is a piece of cake with Price Alerts. All you need to do is create one of these automatic alerts and we'll notify you as soon as a lower fare pops up.

  • Pick your ideal departure and arrival times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to see the best deals on flights from Shannon Airport to Porto Airport.

Handy information about Shannon Airport (SNN)

  • Shannon Airport has an excellent on-time record, so you're unlikely to face delays. Departures from SNN touch down on schedule 84% of the time.

  • To reach Shannon Airport from central Shannon, it'll take around 5 minutes if you're travelling by car. This depends on traffic, however. It's approximately 3 kilometres from the airport to the city centre.

  • You can expect a trip time of about 15 minutes on public transport.

  • Have an early flight from Shannon Airport to Porto Airport? Avoid the stress of rushing to the airport (and sneak in some extra snooze time) by picking one of these stays close to SNN:

Arriving at Porto Airport (OPO)

  • The last thing you want is a lengthy trip to your hotel if you're getting in late on a Shannon Airport to Porto Airport flight. Reserve one of these accommodation options near OPO instead:

  • Fast-track your adventure by picking up a Porto Airport rental car. Grab your wheels from Klass Wagen, Goldcar or Drive & Go and explore beyond Porto's usual tourist stops.

  • Lock in the best deal by booking your ride from Porto Airport about three weeks ahead of your trip.

Getting from Porto Airport (OPO) to central Porto

  • Porto Airport to central Porto has a drive time of about 20 minutes. It's approximately 11 kilometres away.

  • It takes around 30 minutes to get there using public transport.

When to fly to Porto Airport (OPO)

  • It's time to plan your dates for your flight from Shannon Airport to Porto Airport. August is the most popular month to visit Porto. If you like a quieter vibe, go in March.

  • When reserving your flight from Shannon Airport to Porto Airport, think about the type of weather you like. August is the warmest month in Porto, with temperatures ranging from 14ºC (57ºF) to 32ºC (90ºF).

  • January sees average temperatures of between 3ºC (37ºF) and 14ºC (57ºF). Search for cheap tickets from SNN to OPO sometime then if you want to travel in cooler conditions.

Explore more of Portugal

  • Lisbon is just one of the many places in Portugal waiting to be explored once you've seen the sights of Porto. Around 274 kilometres away to the south, top sights here include Pasteis de Belém, belém and Real Mosteiro de Santa Maria de Belém.

  • Amadora is another favourite destination in Portugal and is around 274 kilometres south of Porto. No trip is complete without experiencing Roman Villa, Park Fantasia and Palácio dos Condes da Lousã.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.