$81 Cheap Flights from Porto (OPO) to San Sebastian (EAS)

View $81 flight on Fri, Apr 17, 2026Opens in a new window

Popular airlines from Porto Airport (OPO) to San Sebastian (EAS)

Cheap Flights from Porto to San Sebastian (OPO-EAS)

Prices were available within the past 7 days and start at $81 for one-way flights and $138 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Vueling Airlines
Tue, Mar 10 - Wed, Mar 11
OPO
Porto
EAS
San Sebastián
$138 Roundtrip, found 1 day ago
$138
Roundtrip
found 1 day ago
Select Vueling Airlines flight, departing Tue, Mar 10 from Porto to San Sebastián, returning Wed, Mar 11, priced at $138 found 1 day ago
Iberia
Thu, Nov 13 - Sun, Nov 16
OPO
Porto
EAS
San Sebastián
$151 Roundtrip, found 3 hours ago
$151
Roundtrip
found 3 hours ago
Select Iberia flight, departing Thu, Nov 13 from Porto to San Sebastián, returning Sun, Nov 16, priced at $151 found 3 hours ago
Iberia
Sun, Mar 22 - Wed, Mar 25
OPO
Porto
EAS
San Sebastián
$157 Roundtrip, found 6 days ago
$157
Roundtrip
found 6 days ago
Select Iberia flight, departing Sun, Mar 22 from Porto to San Sebastián, returning Wed, Mar 25, priced at $157 found 6 days ago
Iberia
Thu, Nov 13 - Sun, Nov 16
OPO
Porto
EAS
San Sebastián
$159 Roundtrip, found 3 hours ago
$159
Roundtrip
found 3 hours ago
Select Iberia flight, departing Thu, Nov 13 from Porto to San Sebastián, returning Sun, Nov 16, priced at $159 found 3 hours ago
Iberia
Sat, Mar 14 - Wed, Mar 18
OPO
Porto
EAS
San Sebastián
$162 Roundtrip, found 2 days ago
$162
Roundtrip
found 2 days ago
Select Iberia flight, departing Sat, Mar 14 from Porto to San Sebastián, returning Wed, Mar 18, priced at $162 found 2 days ago
Iberia
Fri, Jul 17 - Wed, Aug 5
OPO
Porto
EAS
San Sebastián
$165 Roundtrip, found 6 hours ago
$165
Roundtrip
found 6 hours ago
Select Iberia flight, departing Fri, Jul 17 from Porto to San Sebastián, returning Wed, Aug 5, priced at $165 found 6 hours ago
Iberia
Sat, Mar 14 - Wed, Mar 18
OPO
Porto
EAS
San Sebastián
$166 Roundtrip, found 2 days ago
$166
Roundtrip
found 2 days ago
Select Iberia flight, departing Sat, Mar 14 from Porto to San Sebastián, returning Wed, Mar 18, priced at $166 found 2 days ago
Iberia
Fri, Jul 17 - Wed, Aug 5
OPO
Porto
EAS
San Sebastián
$175 Roundtrip, found 6 hours ago
$175
Roundtrip
found 6 hours ago
Select Iberia flight, departing Fri, Jul 17 from Porto to San Sebastián, returning Wed, Aug 5, priced at $175 found 6 hours ago
Vueling Airlines
Sun, Mar 22 - Wed, Mar 25
OPO
Porto
EAS
San Sebastián
$179 Roundtrip, found 6 days ago
$179
Roundtrip
found 6 days ago
Select Vueling Airlines flight, departing Sun, Mar 22 from Porto to San Sebastián, returning Wed, Mar 25, priced at $179 found 6 days ago
Iberia
Fri, Jul 17 - Wed, Aug 5
OPO
Porto
EAS
San Sebastián
$183 Roundtrip, found 6 hours ago
$183
Roundtrip
found 6 hours ago
Select Iberia flight, departing Fri, Jul 17 from Porto to San Sebastián, returning Wed, Aug 5, priced at $183 found 6 hours ago

Find the cheapest month to fly from Porto (OPO) to San Sebastián (EAS)

February is typically the cheapest month to fly

From $93 - $232 per traveler.
Flights from Porto (OPO) to San Sebastian (EAS)
Origin airport
Dr. Francisco de Sa Carneiro
Destination airport
San Sebastian
Airlines serving
Iberia, Vueling Airlines
Roundtrip price
$138
Distance
380 mi

Porto to San Sebastian Flights

The cheapest times to fly from Porto to San Sebastian

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Porto to San Sebastian are during the month of March. You can find some of the cheapest flights from Porto to San Sebastian with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Porto to San Sebastian

Sunday is one of the best days to book for cheap flights from Porto to San Sebastian: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Porto to San Sebastian

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Porto to San Sebastian in 2025. You can also book with separate airlines for your outbound and return journeys, from $81 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Porto to San Sebastian flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Porto to San Sebastian airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Dr. Francisco de Sa Carneiro Airport (OPO) to San Sebastian Airport (EAS) cost?
Snag a cheap one-way flight from $81 or cheap return flight from $138 from Dr. Francisco de Sa Carneiro Airport (OPO) to San Sebastian Airport (EAS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Dr. Francisco de Sa Carneiro Airport (OPO) to San Sebastian Airport (EAS)?
March is the least expensive month to fly from OPO to EAS. Planning your trip for the off-season is often the key to finding better deals on flights.
What is the cheapest airline that flies from Dr. Francisco de Sa Carneiro Airport (OPO) to San Sebastian Airport (EAS)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest OPO to EAS flight.
How many flights per day from Dr. Francisco de Sa Carneiro Airport (OPO) to San Sebastian Airport (EAS)?
You'll need to take a flight with a layover when traveling from Dr. Francisco de Sa Carneiro Airport (OPO) to San Sebastian Airport (EAS). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from OPO to EAS?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change depending on a number of factors, such as the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Dr. Francisco de Sa Carneiro Airport (OPO) to San Sebastian Airport (EAS)?
Select a flight from Dr. Francisco de Sa Carneiro Airport (OPO) to San Sebastian Airport (EAS) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures after this hour are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for San Sebastián from Dr. Francisco de Sa Carneiro Airport (OPO)?
If you've booked a direct flight from Dr. Francisco de Sa Carneiro Airport (OPO) to San Sebastián, Bilbao Airport (BIO) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from Dr. Francisco de Sa Carneiro Airport (OPO) to San Sebastian Airport (EAS) last-minute?
Last-minute bookings from OPO to EAS are typically more expensive. To secure the best prices, start searching for flights ahead of time. That said, if your travel plans are flexible, you may land a cheap ticket right before your journey.
Is it cheaper to book an OPO to EAS flight and hotel package?
You can save money by securing an OPO to EAS flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. After selecting your preferred flights and accommodations, you can add extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Dr. Francisco de Sa Carneiro Airport (OPO) to San Sebastian Airport (EAS)?
In most instances, you can modify or cancel your OPO to EAS flight. However, additional fees may apply, especially if your booking was made over 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you want further details, visit our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.