Cheap flights from Portugal to San Diego from $370
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portugal to San Diego departing on 10/3. 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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How to get the cheapest flight ticket from Portugal to San Diego
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 San Diego?
If you are unable to visit San Diego during the month of November, then departing from Portugal during the month December is also very affordable. Most momondo users find prices during this month for around $836.
What is the cheapest day to depart on your flight to San Diego?
The cheapest day to depart from Portugal to San Diego is on a Saturday. Travelers who choose to depart for San Diego on a Saturday will often find tickets for as low as $809. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $974. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.
What is the cheapest airline that flies from Portugal to San Diego?
Aer Lingus, TAP AIR PORTUGAL, and Icelandair are the most popular carriers operating from Portugal to San Diego
What airlines fly to San Diego?
United Airlines, British Airways and KLM are the top three most popular airlines that fly to San Diego from Portugal according to our data. United Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 3 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.
Cheap Portugal to San Diego flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Portugal to San Diego
When did momondo last update prices for flights from Portugal to San Diego Airport?
Prices for flights from Portugal to San Diego Airport are updated daily.
How many operators does momondo search for flights from Portugal to San Diego Airport?
As of June 2025, there are 2 operators available to choose from for flights from Portugal to San Diego Airport.
How old do you have to be to fly from Portugal to San Diego Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portugal to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The necessary travel and health documents for your San Diego Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
Best airlines flying from Portugal to San Diego
Compare and see reviews for airlines that fly from Portugal to San Diego with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $715 | Free Cancellation | Rating 6.6 7,008 reviews | |||
| PriceFrom $746 | Free Cancellation | Rating 7.4 8,790 reviews |
Traveling to a place near San Diego?
Book flights to San Diego if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Portugal to San Diego?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Portugal to San Diego. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Portugal to San Diego with flexible booking policies on momondo?
momondo does allow users to show only those flights to San Diego from Portugal which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Portugal to San Diego?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Portugal to San Diego.
I’m not ready to book a flight from Portugal to San Diego right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Portugal to San Diego 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.