$398 Find Cheap Flights from Portugal to San Diego

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to San Diego departing on 11/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to San Diego

 
These are the airlines KAYAK users have selected most often from within our search results for flights to San Diego, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to San Diego, as well as popular online travel agencies
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Cheap Flights from Portugal to San Diego

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portugal to San Diego that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portugal to San Diego

Wed, Oct 1 - Tue, Oct 7
Delta Logo
5:00 am - 7:06 pmLIS-SAN
22h 06m2 stops
Delta Logo
3:59 pm - 5:50 pmSAN-LIS
17h 51m2 stops
$744Delta
Find Deal
Wed, Oct 1 - Tue, Oct 7
Delta Logo
5:00 am - 7:06 pmLIS-SAN
22h 06m2 stops
Delta Logo
7:10 am - 8:00 amSAN-LIS
16h 50m1 stop
$748Delta
Find Deal
Mon, Oct 6 - Mon, Oct 20
Delta Logo
9:50 am - 11:14 pmLIS-SAN
21h 24m2 stops
Delta Logo
6:15 am - 11:15 amSAN-LIS
21h 00m2 stops
$751Delta
Find Deal
Fri, Feb 20 - Tue, Feb 24
American Airlines Logo
11:05 am - 6:32 pmLIS-SAN
15h 27m1 stop
American Airlines Logo
6:00 pm - 2:50 pmSAN-LIS
36h 50m1 stop
$754American Airlines
Find Deal
Fri, Feb 20 - Tue, Feb 24
American Airlines Logo
11:05 am - 6:32 pmLIS-SAN
15h 27m1 stop
American Airlines Logo
6:00 pm - 9:45 pmSAN-LIS
19h 45m1 stop
$755American Airlines
Find Deal
Wed, Oct 1 - Tue, Oct 7
British Airways Logo
6:40 pm - 2:50 pmLIS-SAN
28h 10m1 stop
British Airways Logo
6:20 am - 9:05 amSAN-LIS
18h 45m1 stop
$771British Airways
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Mon, Oct 6 - Mon, Oct 20
Multiple Airlines Logo
7:15 am - 6:00 pmLIS-SAN
18h 45m1 stop
Multiple Airlines Logo
6:20 am - 9:05 amSAN-LIS
18h 45m1 stop
$791Multiple Airlines
Find Deal
Mon, Oct 6 - Mon, Oct 20
Multiple Airlines Logo
12:35 pm - 11:31 amLIS-SAN
30h 56m3 stops
Multiple Airlines Logo
7:48 pm - 9:30 pmSAN-LIS
17h 42m2 stops
$1,314Multiple Airlines
Find Deal
Mon, Dec 22 - Wed, Dec 31
Aer Lingus Logo
10:50 am - 4:10 pmLIS-SAN
37h 20m2 stops
Aer Lingus Logo
6:15 am - 10:10 amSAN-LIS
19h 55m2 stops
$2,849Aer Lingus
Find Deal
Sun, Dec 21 - Wed, Dec 31
Aer Lingus Logo
6:55 pm - 4:10 pmLIS-SAN
53h 15m2 stops
Aer Lingus Logo
6:15 am - 10:10 amSAN-LIS
19h 55m2 stops
$2,868Aer Lingus
Find Deal

Everything you should know

When to travel
November
Cheapest • 16% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$744
Typical prices: $799-1140
Delta
Wed 10/1Tue 10/7
LIS - SAN • 2 stops
Cheapest one-way
$398
Typical prices: $700-853
Multiple Airlines
Mon 11/3
LIS - SAN • 2 stops
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Diego!
Booking Insights

KAYAK's insights & trends for flights to San Diego

Get data-powered insights and trends for flights to San Diego to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly to San Diego?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to San Diego, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to San Diego is November, where tickets cost $773 on average for return flights. On the other hand, the most expensive months are July and June, where the average cost of tickets from Portugal is $1,065 and $988 respectively. For one-way flights, the best month to travel is November with an average price of $773.

Good to know

Low seasonMarch
Cheapest flight$398
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from Lisbon to San Diego

FAQs - booking San Diego flights

  • How far is San Diego Airport from central San Diego?

    Central San Diego is 3 miles away from San Diego Airport.

  • What is the name of San Diego’s airport?

    When flying to San Diego, you'll arrive at San Diego Airport (SAN). The airport is also known as Lindbergh Field, San Diego, or San Diego Intl.

  • What is the cheapest day to fly to San Diego?

    Based on KAYAK data, the cheapest day to fly to San Diego is Saturday where round-trip tickets can be as cheap as $809. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $974 on average.

  • How does KAYAK find such low prices on flights to San Diego?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to San Diego.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to San Diego?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Diego is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to San Diego?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Diego with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to San Diego?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Diego up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to San Diego?

    The cheapest time of day to fly to San Diego is generally in the morning, when round-trip flights cost $845 on average. The most expensive time of day to fly to San Diego is generally in the morning, which is peak travel time and where the average cost of a ticket is $845.

  • How many direct flights to San Diego are there each week?

    Each week there are around 3,056 direct flights from within Portugal to San Diego. The most common day for departures is Thursday, with 15% of flights taking off on this day.

Top tips for finding cheap flights to San Diego

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest San Diego flight deals.

Reviews of the top airlines flying from Portugal to San Diego

 
See real verified KAYAK customer reviews for airlines flying to San Diego. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Portugal to San Diego. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to San Diego? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8929 reviews
7.7Boarding
8.1Crew
7.1Entertainment
6.6Food
7.3Comfort
Airline reviews

The flight was comfortable with the exit row and great service

10.0 ExcellentMark, Aug 2025HNL - LAX
Read more United Airlines reviews

The flight was comfortable with the exit row and great service

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

1. when we went to check in, our 2 first class seats had been CANCELED and the flight was sold out. This was done without our prior knowledge. It was all we could do to restore one first class seat for my wife and I flew economy. 2, Our flight home was scheduled to leave at 10:30 pm. Due to tsunami warnings, the roads were closed and our flight status was uncertain as to whether it would leave as scheduled. It was announced that it would now leave at 11:20 pm and the roads were now open since the tsunami had come and gone. We made a mad dash to the airport and checked in. Delays were announced at 12:30 pm, 1:30 am, 2:30 am and at 3:30 am it was canceled. Since this was a flight due to natural (tsunami) causes, there was no compensation. We were told to return at 1:00 pm the next day and our baggage would be kept on the plane since the same plane was going to leave at 1:00 pm. We had to return to our hotel for the rest of the night. The same plane did not leave at 1:00 pm and our baggage was gone! All in all, it was a miserable performance by UA. Information was hard to obtain and no one knew what was going on and what was going to happen. Hundreds of passengers slept on the floor, chairs, etc. No food and no water was made available to the passengers. It was a situation where UA could care less what was going on. As a one million mile flyer, I had not experienced anything like this before and it was hugely disappointing!

I found the staff to not be very attentive at all. When paying for Business Class you expect a certain type of service and that was not found. They were almost rude even

Ok. Get a different kosher caterer. The food was odd.

Our experience on United Airlines was extremely poor. The plane was extremely cold throughout our entire flight- which multiple people complained about- and we had to wait 2 hours to get a blanket which was too thin and barely helped warm us up. As well as this, none of the entertainment features were working so we had to sit through a roughly 10 hour flight with nothing to keep our attention, including the actual flight path screen. It was an extremely disappointing experience and I would hope that this gets fixed if we ever choose United Airlines again.

I really enjoyed flying with United airlines amazing experience , good customer service and great food

1.It will be better if sandwich is warm. 2.The food is too salty. 3.Breakfast needs some vegetables or fruits.

Boarded plane and then delayed 1.5 hours while on the plane

It was all good flight was on time, service was good I enjoyed a few movies and everything was smooth

what would have been better would have been that my booking not been canceled by the system and had I been informed that the booking had been cancelled by the system I could have immediately rebooked and not found out that there was an issue when I was told by the system that I needed to book in. It would have also been good if either the booking agent or BA or anyone been in anyway useful. In the end I had to rebook a flight at an additional cost of $350. So no I'm not impressed by BA any of the other parties involved.

Boarding was poor. Why are first class passengers not boarded first?! Bus to the plane and then held on a packed bus because we were waiting for people on the bus before to finish boarding. Seat belt on the fist clas seat is very uncomfortable, cutting into your neck. Other than that crew, seating and food were all excellent. Entertainment, as usual - rubbish.

I paid for full WIFI- it was terrible, kept being in and out could not listen to a podcast

Flight was delayed but my previous flight was as well so It worked to my advantage. This was my first time in first class. I don't think they ever stopped feeding us. The seating area was very spacious and comfortable. The attendants were wonderful, warm, friendly and very personable.

Some how my flight was canceled, neither BA or Justfly.com accepted responsibility. I only found out about this the day before when I tried to check in. I had to book another flight which due to the time ( day before) cost me $300 more. I was still receiving notifications about the flight even when I was on another flight from you. So no my flight to London was not good.

We had a pretty good experience. Enjoyed both the flights. Crew was very good and helpful.

They issued seat assignments and sat my 2 year-old in the row behind me, separate from me and my daughter. Communication/ customer service was terrible. They told me to change it in London, then in London, they told me to talk to the cabin crew, then a supervisor came and stuck us in the back of the plane when we were supposed to be in row 25. Overall, they need to really work on their customer service. Additionally the food was terrible and they ran out of meals and didn’t have any kid options. To top it off there was no in-flight entertainment for the first hour of the trip.

We missed the connection because we had to wait for a shuttle from the plane to the Terminal. Also, we needed assistance and none was available.

When we arrived at the airport - 1st step - printing out your boarding pass - no issue. Not long lines as these machines. 2nd step - processing your bag drop off. There was only one associate there to help 10 kiosks. We had a family in front of us for 20 minutes trying to work on the machine and figure out every step for 4 pieces of luggage. My husband alerted the associate who was able to assist the family. Highly suggest that there are more associates to assist in this process. Besides this issue, security check went very quickly. Our flight was direct to Philadelphia. We had to carry our bags down two flights of steps, then out to the tarmac to a bus, then carry our bags up two flights of stairs to the plane. No one on the flight was expecting that long trek. I could see some people were struggling a bit. All in all - great flight crew, plane was clean and food was great!

There were no gluten-free vegan options available, so food was very limited on this flight, and some of the crew weren’t especially helpful about it. To make matters worse, a passenger was sick on board, and although the area was cleaned, the smell lingered for the rest of the journey. On top of that, we ended up circling for an extra hour, which only made the unpleasant situation drag on even longer.

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