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456 € Cheap Flights from San Diego International to Porto

Compare San Diego International to Porto flight deals

Find the cheapest month or even day of the year to fly to Porto

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Flight deals from San Diego International to Porto

Looking for a cheap last-minute deal or the best return flight from San Diego International to Porto? Find the lowest prices on one-way and return tickets right here.
Porto.456 € per passenger.Departing Mon, 23 Nov, returning Tue, 8 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from San Diego International on Mon, 23 Nov, arriving in Porto.Inbound indirect flight with Delta, departs from Porto on Tue, 8 Dec, arriving in San Diego International.Price includes taxes and charges.From 456 €, select.
Porto.467 € per passenger.Departing Tue, 5 May, returning Tue, 19 May.Return flight with Delta.Outbound indirect flight with Delta, departs from San Diego International on Tue, 5 May, arriving in Porto.Inbound indirect flight with Delta, departs from Porto on Tue, 19 May, arriving in San Diego International.Price includes taxes and charges.From 467 €, select.
Porto.472 € per passenger.Departing Sun, 19 Apr, returning Fri, 1 May.Return flight with British Airways.Outbound indirect flight with British Airways, departs from San Diego International on Sun, 19 Apr, arriving in Porto.Inbound indirect flight with British Airways, departs from Porto on Fri, 1 May, arriving in San Diego International.Price includes taxes and charges.From 472 €, select.
Porto.500 € per passenger.Departing Tue, 7 Apr, returning Thu, 16 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from San Diego International on Tue, 7 Apr, arriving in Porto.Inbound indirect flight with Delta, departs from Porto on Thu, 16 Apr, arriving in San Diego International.Price includes taxes and charges.From 500 €, select.
Porto.555 € per passenger.Departing Tue, 31 Mar, returning Tue, 7 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from San Diego International on Tue, 31 Mar, arriving in Porto.Inbound indirect flight with Delta, departs from Porto on Tue, 7 Apr, arriving in San Diego International.Price includes taxes and charges.From 555 €, select.
Porto.577 € per passenger.Departing Tue, 10 Mar, returning Tue, 24 Mar.Return flight with KLM.Outbound indirect flight with KLM, departs from San Diego International on Tue, 10 Mar, arriving in Porto.Inbound indirect flight with KLM, departs from Porto on Tue, 24 Mar, arriving in San Diego International.Price includes taxes and charges.From 577 €, select.
Porto.620 € per passenger.Departing Tue, 17 Feb, returning Sun, 22 Feb.Return flight with Delta.Outbound indirect flight with Delta, departs from San Diego International on Tue, 17 Feb, arriving in Porto.Inbound indirect flight with Delta, departs from Porto on Sun, 22 Feb, arriving in San Diego International.Price includes taxes and charges.From 620 €, select.
Porto.781 € per passenger.Departing Thu, 2 Jul, returning Wed, 12 Aug.Return flight with Delta.Outbound indirect flight with Delta, departs from San Diego International on Thu, 2 Jul, arriving in Porto.Inbound indirect flight with Delta, departs from Porto on Wed, 12 Aug, arriving in San Diego International.Price includes taxes and charges.From 781 €, select.

Find the cheapest month to fly from San Diego International to Porto

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Diego International to Porto flights are currently cheapest in May.
Feb
from 620 €
Mar
from 577 €
Apr
from 500 €
May
from 467 €
Jun
from 843 €
Jul
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Aug
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Sep
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Oct
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Nov
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Dec
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Jan
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San Diego International to Porto: Alternative routes

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

Porto

12km from central Porto
ClosestCheapest
from 456 €
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Vila Real

76km from central Porto
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Viseu G. Lobato

81km from central Porto
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San Diego to Porto: Flight information

The things to know before you go.
Cheapest flight found456 €
Cheapest month to flyNovember

Finding cheap flights from San Diego International to Porto: Frequently asked questions

The best price we found for a return flight from San Diego International to Porto is 456 €. 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 San Diego International to Porto. But we found flights with one or more stops from 456 €.
As of February 2026, there are no flights flying from San Diego International to Porto.
The cheapest month to fly from San Diego International to Porto is usually November.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Diego International Airport to Porto Airport on Monday, 23 November 2026.
No airlines currently offer direct flights between San Diego International Airport and Porto 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 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, Delta offers the cheapest flight tickets to Porto.

Travelling from San Diego International Airport (SAN) to Porto Airport (OPO): what you need to know

  • The timezone in Porto is UTC+0, which is seven hours ahead of San Diego.

  • Arrive at the airport on time so you don't miss your SAN to OPO flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid any last-minute rush.

  • During popular months such as July, it's best to get to the airport earlier than usual. Plan to arrive two hours before domestic departures and four hours ahead for international flights when you fly during a high season in general.

  • We make it a piece of cake to book a flight with a stopover. To see your options for tickets from San Diego International Airport to Porto Airport, uncheck 'Direct flights only.' Then, choose a flight offering a stop long enough to tour your chosen city. Top stopovers between SAN and OPO include:

    • Newark Liberty International Airport

    • Montreal-Pierre Elliott Trudeau International Airport

    • Pearson International Airport

How to find the cheapest flights from San Diego International Airport (SAN) to Porto Airport (OPO)

  • Right now, 207 € is the lowest price we've found for a one-way San Diego International Airport to Porto Airport flight. The best price for a return plane ticket is 456 €. Keep in mind that fares could change due to availability at the time of booking.

  • It's usually smart to book early if you're looking for cheap tickets from SAN to OPO. That's because flight prices are based on demand, which tends to rise closer to the date of departure.

  • Finding cheap flights from San Diego International Airport to Porto Airport is easier if you can be flexible with your travel dates. Use the 'Whole month' search tool to see the lowest prices across every month and snap up a great deal.

  • Finding cheap flights from SAN to OPO is easy with Price Alerts. Simply create one of these automatic alerts and we'll let you know when a lower fare pops up.

  • Tailor your trip using filters. Select your ideal arrival and departure times, airlines and total journey duration. You can also sort your results by 'Fastest,' 'Best' or 'Cheapest' flights from San Diego International Airport to Porto Airport.

Handy information about San Diego International Airport (SAN)

  • The address for SAN is Airport Drive.

  • Of all flights leaving San Diego International Airport, 71.38% arrive as scheduled at their destination.

  • To get to San Diego International Airport from central San Diego, it takes about 10 minutes if you're planning to drive. This depends on traffic though. It's approximately 5 kilometres from the airport to the city centre.

  • Expect a trip time of roughly 20 minutes when using public transport.

  • Searching for a convenient hotel near SAN? If you're catching an early flight from San Diego International Airport to Porto Airport, these accommodation options will have you moments from your departure gate:

Arriving at Porto Airport (OPO)

  • Book a hotel close to OPO if you're on a late San Diego International Airport to Porto Airport flight. Settle into one of these accommodation options and make your arrival easier:

  • Go wherever you want, whenever you want with a Porto Airport rental car. Book your wheels from Klass Wagen, Goldcar or Drive & Go and find adventure across Porto and beyond.

  • Booking your vehicle from Porto Airport around three weeks ahead can help you get the lowest rate.

Getting from Porto Airport (OPO) to central Porto

  • Porto Airport is roughly 16 kilometres from central Porto. Driving there takes about 20 minutes.

  • If you're taking public transport, expect a journey of around 50 minutes.

When to fly to Porto Airport (OPO)

  • It's time to pick your travel dates for your flight from San Diego International Airport to Porto Airport. August is the most popular month to visit Porto. If you prefer a more relaxed vibe, go in January.

  • When reserving your flight from San Diego International Airport to Porto Airport, consider the kind of weather you like. August is the warmest month in Porto, with the temperature ranging from 14ºC (57ºF) to 32ºC (90ºF).

  • If you want cooler conditions, search for a cheap ticket from SAN to OPO in January. Average temperatures are between 3ºC (37ºF) and 14ºC (57ºF) then.

Explore more of Portugal

  • Lisbon is just one of the many places in Portugal waiting to be discovered after you've seen Porto. Around 274 kilometres away to the south, top sights here include Torre de Belem Garden, Estrela At Lisbon - Tram 28 and Archaeological museum of Sao Jorge Castle.

  • If you're interested in discovering another major destination in Portugal, head for Amadora, roughly 274 kilometres south of Porto. Jardim Porta do Viveiro Alfragide, Jardim Caracol do Victor Alfragide and Jardim e estatua Eduardo Jorge are the start of reasons to visit.

Plan the rest of your trip from San Diego to Porto

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.