Cheap flights from San Diego to Porto from $356
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to Porto departing on 7/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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KLM flights from San Diego to Porto
Our best KLM deals on San Diego to Porto flight tickets
Lufthansa flights from San Diego to Porto
Our best Lufthansa deals on San Diego to Porto flight tickets
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How to get the cheapest flight ticket from San Diego to Porto
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Porto?
The month of February is, on average, the cheapest month to fly to Porto from San Diego, with most prices found around $648. If you aren’t able to travel during the month of February, then book flights to Porto from San Diego during August instead. Flights to Porto in August, while not as cheap as those in February, still average around $686.
What is the cheapest day to depart on your flight to Porto?
The cheapest day to depart on your flight to Porto is on a Tuesday when prices can be found for as low as $994. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $1,291. These prices are subject to change though, so be sure to set up a Price Alert for flights to Porto.
What is the cheapest airline that flies from San Diego to Porto?
United Airlines, Lufthansa, and Air Canada are the most popular carriers operating from San Diego to Porto
What airlines fly to Porto?
Lufthansa, United Airlines and KLM are the top three most popular airlines that fly to Porto from San Diego according to our data. Lufthansa is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Porto. Keep in mind that there are 4 different airlines that fly to Porto on a routine basis, so you have a few additional options to choose from.
When to book flights from San Diego to Porto
Cheap San Diego to Porto (SAN to OPO) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from San Diego to Porto
How far is San Diego to Porto by plane?
Porto is 5600.8 mi away from San Diego. By plane, this route typically takes 15h 15m.
When did momondo last update prices for flights from San Diego Airport to Porto Airport?
Prices for flights from San Diego Airport to Porto Airport refresh daily.
How many operators does momondo search for flights from San Diego Airport to Porto Airport?
As of June 2025, there are 4 operators available to choose from for flights from San Diego Airport to Porto Airport.
How old do you have to be to fly from San Diego Airport to Porto Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Diego Airport to Porto Airport.
What documentation or ID do you need to fly to Porto Airport?
The required travel and health documents for your Porto Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Porto Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from San Diego to Porto?
Based on momondo bookings for flights between San Diego and Porto, the leading airline is Lufthansa, making up 39% of the total bookings. Other popular airlines include United Airlines with 37%, KLM with 13%, and Delta with 12%.
Best airlines flying from San Diego to Porto
Compare and see reviews for airlines that fly from San Diego to Porto with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $547 | Free Cancellation | Rating 6.7 7,136 reviews | |||
| PriceFrom $648 | Free Cancellation | Rating 7.8 1,358 reviews | |||
| PriceFrom $794 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $833 | Free Cancellation | Rating 8.0 7,950 reviews |
Traveling to a place near Porto?
Book flights to Porto if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from San Diego to Porto?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from San Diego to Porto for you.
Can I find flights from San Diego to Porto with flexible booking policies on momondo?
momondo does allow users to show only those flights to Porto from San Diego which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from San Diego to Porto?
Once you have performed a search for San Diego to Porto flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from San Diego to Porto right now. Can momondo alert me if prices change?
Yes. momondo can track prices for San Diego to Porto flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.