Cheap flights from Porto to San Sebastian

Compare Porto to San Sebastian flight deals

Find the cheapest month or even day of the year to fly to San Sebastian

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Flight deals from Porto to San Sebastian

Looking for a cheap last-minute deal or the best round-trip flight from Porto Airport to San Sebastian Airport? If you want to travel next month, round-trip fares start from $128. Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Porto to San Sebastian

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

Porto to San Sebastian: Flight information

The things to know before you go.
Cheapest flight found$128
Cheapest month to flySeptember

Finding cheap flights from Porto to San Sebastian: Frequently asked questions

The best price we found for a round-trip flight from Porto to San Sebastian is $128. 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.
Currently, there are no airlines that fly direct from Porto to San Sebastian. But we found flights with one or more stops from $128.
There are no flights flying from Porto to San Sebastian, as of August 2026.
The cheapest month to fly from Porto to San Sebastian is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Porto Airport to San Sebastian Airport on Thursday, September 24, 2026.
No airlines currently offer direct flights between Porto Airport and San Sebastian Airport. Most routes have one or more stops.
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 San Sebastian 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 San Sebastian is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Vueling Airlines offers the cheapest flight tickets to San Sebastian.

Flying from Porto Airport (OPO) to San Sebastian Airport (EAS): what you need to know

  • The timezone in San Sebastian is UTC+1, which is one hour ahead of Porto.

  • For a stress-free journey, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This will give you enough time to board your OPO to EAS flight.

  • During popular months such as August, it's a good idea to get to the airport earlier. Plan to arrive two hours before a domestic departure and four hours ahead of an international flight when you travel during a peak period in general.

  • Think about adding a stopover when booking your ticket from Porto Airport to San Sebastian Airport. Simply uncheck 'Direct flights only' to break up your journey, or visit a new city along the way. Here are some options between OPO and EAS:

    • Madrid Airport

    • Barcelona Airport

    • Seville Airport

How to find the cheapest flights from Porto Airport (OPO) to San Sebastian Airport (EAS)

  • At the moment, $54 is the cheapest price we've seen for a one-way Porto Airport to San Sebastian Airport flight. The best price for a return ticket is $128. Bear in mind that fares can change due to demand when booking.

  • Don't leave things to the last moment. You're more likely to get cheap tickets from OPO to EAS if you book ahead. Airlines often have some terrific early bird rates.

  • Getting cheap flights from Porto Airport to San Sebastian Airport is easier if you can be flexible with your travel plans. Use the 'Whole month' function to see the lowest fares throughout the month and score a great deal.

  • There's no need to check back in every day to see if fares have gone down when you create a Price Alert. We'll send you an update as soon as there's a change in price on cheap flights from OPO to EAS.

  • Select your preferred 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 Porto Airport to San Sebastian Airport.

Handy information about Porto Airport (OPO)

  • When it comes to Porto Airport's on-time performance, 75% of flights stick to their scheduled arrival time.

  • Central Porto to Porto Airport is approximately 11 kilometers. Depending on traffic, it'll take you about 20 minutes to get there if you're driving, catching a cab or ride-sharing.

  • The journey when using public transport typically takes 30 minutes.

  • Catching an early flight from Porto Airport to San Sebastian Airport? Avoid the hassle of rushing to the terminal (and sneak in some extra snooze time) by picking one of these stays near OPO:

Arriving at San Sebastian Airport (EAS)

  • The last thing you need is a long journey to your hotel if you're arriving on a late Porto Airport to San Sebastian Airport flight. Reserve one of these accommodation options near EAS instead:

  • Get your adventure underway by picking up a San Sebastian Airport rental car. Grab a set of wheels from Europcar, Keddy By Europcar or Hertz and explore beyond San Sebastian's main sights.

  • Reserving your ride from San Sebastian Airport about two weeks ahead boosts your odds of scoring a great price.

When to fly to San Sebastian Airport (EAS)

  • The quietest month for a flight from Porto Airport to San Sebastian Airport is March, while June is the busiest. Choose the ideal time to go to San Sebastian based on whether you prefer a more relaxed vibe or a faster pace.

  • Before locking in your flight from Porto Airport to San Sebastian Airport, consider the type of weather you like. August is the warmest month in San Sebastian, with temperatures ranging from 15ºC (59ºF) to 25ºC (77ºF).

  • January has average temperatures of between 4ºC (39ºF) and 13ºC (55ºF). Look for cheap tickets from OPO to EAS sometime around then if you like traveling in cooler conditions.

Explore more of Spain

  • Zaragoza is just one of the many cities in Spain waiting to be discovered after you've experienced San Sebastian. Around 209 kilometers away to the south-east, top sights here include Plaza del Pilar, La Seo del Salvador and Basílica de Nuestra Senora del Pilar.

  • If you're eager to discover another side of Spain, head for Salamanca, roughly 402 kilometers south-west of San Sebastian. Catedral de Salamanca, Salamanca, Casco Historico and Plaza Mayor are key reasons to visit.

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