Find flights
Deals
When to book
FAQs & Tips
Airlines

Find cheap flights from San Diego to Portugal from $312

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Diego to Portugal departing on 9/21. 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
0 bags
lun. 7/8
lun. 7/15

Search hundreds of travel sites at once for deals on flights to Portugal

In the last 7 days travelers have searched 43,124,673 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Best Portugal Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Lisbon
Lisbon2 stops$662
Porto
Porto2 stops$679
Ponta Delgada
Ponta Delgada2 stops$991
Funchal
Funchal2 stops$994
Faro
Faro2 stops$952

Good to know

Low season

January

High season

September

Cheapest flight

$312
Best time to beat the crowds with an average 47% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from San Diego to Lisbon

FAQs - booking Portugal flights

  • Can I fly with my pets from San Diego to Portugal?

    KLM allows pets up to 8 kg to fly inside the cabin; heavier pets can fly in the cargo. If you are flying with British Airways, your service dogs and emotional support dogs can travel with you inside the cabin free of cost.

  • What are kid-friendly flights from San Diego to Portugal?

    If you’re flying with children under the age of two, you should fly with American Airlines. They have a Kids Fly Free policy, in which kids under two years of age can fly free with a parent and be seated in their lap. The cabin includes infant seat belts, baby food, and bottle heating services.

  • What are possible layovers on my route from San Diego to Portugal?

    Most of the flights from San Diego to Portugal are one-stop flights. You will most likely have a layover at the London Heathrow (LHR) or Philadelphia (PHL) airports. Lounge access is available at these airports, depending on your airline. Both British Airways and American Airlines offer complimentary access to lounges for their business-class passengers.

  • Can I get vegan meals while flying from San Diego to Portugal?

    If you’re flying with KLM Airlines or British Airlines from San Diego to Lisbon Humberto Delgado (LIS), you can request vegan and dairy-free meals 24 hours prior to taking off or while booking your tickets. You can also opt for low-fat, low-sodium, or kid-friendly meals on your flight.

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

    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 from San Diego to Portugal.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portugal from 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 from San Diego to Portugal?

    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 Portugal with an airline and back to San Diego with another airline.

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

    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 Portugal from San Diego up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Portugal

  • Morning departure is around 33% more expensive than an evening flight, on average*.
  • If you fly from San Diego to Portugal, you might arrive at Lisbon Humberto Delgado (LIS). This airport is the hub for TAP Air Portugal. Airlines frequently fly to Faro International Airport (FAO), Francisco Sá Carneiro Airport (OPO), and Santa Maria Airport (SMA). You can also book nonstop flights from Lisbon Airport to Madrid, Barcelona, and other Spanish destinations.
  • Those flying from San Diego to Lisbon Humberto Delgado (LIS) might want to book British Airways, which offers a one-stop flight. Your layover on this flight will be at Philadelphia Airport (PHL). During your layover, you can relax at the British Airways Galleries Club Lounge in Terminal A.
  • The cheapest flight from San Diego is with Delta Air Lines. It will take 13 hours to fly into Lisbon Airport (LIS) and has a layover at Minneapolis, St. Paul Airport (MSP). You can upgrade your ticket to premium economy for priority boarding and assisted airport transfers. You will also get extra legroom and a variety of snacks with a premium economy ticket.
  • KLM Airlines is the most sustainable airline on this route. It is dedicated to reducing the carbon footprint. They use low-emission fuel, lighter serving utensils, and seats made of more lightweight material to minimize the weight on board and help reduce fuel consumption.
  • You can also fly comfortably from San Diego to Lisbon Humberto Delgado (LIS) with Air France. This airline provides passengers with a pillow, blanket, and a USB charging port on every seat. You will also get free snacks and drinks on this flight.
See more tips
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from San Diego to Portugal

Need help choosing which airline to fly with from San Diego to Portugal? 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.
8.0
DeltaOverall score based on 10333 reviews
8.6Crew
7.9Comfort
8.2Boarding
7.4Food
8.0Entertainment
Airline reviews

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

4.0 OkayBrooke, Jun 2024SFO - MSP
Read more about Delta reviews

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

There was a loud squeaky sound the whole time we were flying.

I didn’t not like that I could not select my seat and ended up with the worse seat.

The landing was bad and the hostess came two times and i was sleeping but when she served the person that nexts to me I woke up and she didn’t even asked me if I need any drink or snacks two times!!!!

Plane was late because of a mechanical malfunction and the food listed as available was not. Flight attendants seem over worked and under paid. They just done seem happy. And that can be seen in their faces.

Waited 3 hours on a plane to de-ice due to manpower issues. Waited another hour and a half once we landed because of a gate issue. Missed my connections. Created. A total of 13 hours of delay.

Great, on time departure, friendly and accommodating crew, great leg room, Smith flight

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

Honestly, I didn’t expect that I will experience this long time wait during the check in. There was only one person who was taking care of the passengers for the economy class and it took us to wait about one hour to do our check i. As a result we barely get to the airplane as the gate was at the end of the airport. That is totally not professional where one crue is working at the registration desk with economy and 3-4 crues are helping for the business class.

Horrible, the flights kept delaying, so it is obvious that we won't be able to make it to the next connection. No easier/real agent on site to help you figure this out. UA agent on other counters refuse to assist you and direct us to use the QR code/call customer service. So inefficient and poor. While technology seems convenient, but it's not the best interest/experience for customers need help while there is active issue need assistance.

Food is very bad and entertint not too many options ... flight attendet service is not good

Everything was pretty good except for food. They need to improve on it compared to other airlines.

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

I had a great flight. Everything went smoothly and the flight arrived early.

Aisle chair was good and liked the foot bar preventing you from putting your foot in the isle, The breakfast on this international flight to Zurich was horrible (Europeans, specially, used to good food) may make this a dealbreaker for booking with United Airlines again. I agreed with my Spanish fellow passenger.

On time take off…US cabins look tired and need of refresh!

Backpack should NOT allowed put in the flight bin , only put it under the seat. I can't find space put my carry on luggage!!! and I pay for it ! that was very bad experience

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

The flight was delayed several times without explanation. The seats were terribly uncomfortable and wifi isn’t included. All these make for a less than ideal flight.

Internet service was erratic. Crew service was poor and slow. My luggage on this non-stop flight was lost and not recovered

Flight was 1/2 hour delayed leaving Phoenix. Otherwise it was an average flight. Flight crew on this trip was very nice.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

Not sure why JAL partnered with American Airlines because their service is no where near similar. Flight attendants were not friendly and didn’t smile. Food was horrible…

The experience was great and much better than the flight going out. of course I was in first class but the service was excellent

Comfort of seats, ease of boarding. Food selection could be better

Food options were limited which is absolutely embarrassing for a Flight of this size The staff did not come around as much and I am not accustomed to such poor service from American Airlines Drinks I believe were limited to soda and water

Crew were attentive and friendly. Flight was smooth and early! I enjoyed the less crowded plane. Thank you!

We are gluten free, there were not any available complimentary gluten free options.

No meal. Flight crew was wonderful, happily finding me storage for my guitar. THANK YOU!!!

Flight was delayed for almost 3 hours. Communication of gate change was poor. Email and screen said one gate and it was a different gate from that. Gate changed first to 64 B and then to 64 C. Originally it was 68B. 64C was not communicated properly!

Plenty of room in the exit row. Sat on the plane an hour before taking off.☹️ Landed late and had to wait for gate availability.

Flight was on time early arrival better entertainment good staff.everything was excellent

They canceled the flight on us very close to the flight date .

My experience was pretty frustrating because the first leg of my flight on United (though booked through Air Canada) was delayed causing me to miss my connecting flight on Air Canada. This could have been an easy solve as there was a direct flight later that morning via Air Canada that they easily could have put me on which would have only gotten me to my destination 2 1/2 hours later but because United and Air Canada don’t seem to have good communication they gave me the run around both telling me to talk with the other which I did three times to no avail. I ended up taking the delayed flight and getting on a new connecting flight which ended up getting me to my destination 6 hours later and I missed the event I was planning to go to this evening.

Everything went smoothly and as expected. We were on time and one flight arrived early.

This is not a Business Class equipped airplane and even the crew apologize before take over BUT BUT Air Canada charged full business class fare

Very good other than we have to wait for one crew and we’re delayed and the pilot and his co- pilot has to make a difference to be right on time arrival. Disappointed about no food service also.

Due to a strike taking place with the airline, it negatively impacted my flight in multiple ways. My flight was delayed over 2 hours and the food served was mediocre at best.

Economy class has no legroom so if you have the money worth to upgrade! Food was absolutely horrible! The crew was super nice!!!!!

The flight was provided by Aer Lingus and our seats were in a poor condition (15A & 15C). They looked like they needed repairing/replacing and were uncomfortable for such a long flight. Also the arm rests on Aer Lingus planes do not lift more than around 45 degrees, instead of the usual 90 degrees upright, meaning you cannot maximum the space between you & your travel companion so as to be more comfortable for such a long flight.

Flights were actually with Aer Lingus outward and American Airlines & Aer Lingus on the return journey. Outward flight with Aer Lingus was good but the return flight with them was not so good as our seats were in a poor condition (15A & 15C) and looked like they needed replacing! The American Airlines flight from Miami to JFK New York was good and the seats were very comfortable and spacious (32D & 32E)

Awful. Delay, lost vacation time and travel time now more than 24h

Awful. Flight delayed and we missed our long flight to Rome. It has been a nightmare and we have still not arrived. It was NOT a weather delay, just poor planning by AA

Boarding was as fast and efficient as possible. The flight crew were amazing and extremely friendly. We enjoyed our flight.

Very bed boarding, there was overbooked and make a lot of problems and noises

There was a problem in the luggage because there were not porters

On my way from Chicago to London, I was seated next to a quite heavy passenger. I could barely move. BA should have ensured that overweight customers are placed in comfortable seats and not to penalize also other passengers because BA is not willing to accommodate these passengers and their needs. No respect at all.

The flight as far as timings go was excellent. Unfortunately we ended up sat with someone on a night flight who had been drinking alcohol before boarding and BA staff were happily serving him more alcohol. He was very drunk which made our flight uncomfortable and awkward. My partner had this person lying on him whilst asleep. Alcohol should be served minimally. If there had been an emergency this person would not have been in a fit state to act accordingly.

Book cheap flights from San Diego to Portugal

Recent round-trip flight deals

11/11lun.
2 stopsAir Canada
35h 40mSAN-LIS
11/20mié.
2 stopsAir Canada
38h 40mLIS-SAN
$662
11/11lun.
2 stopsAir Canada
32h 10mSAN-LIS
11/20mié.
1 stopAir Canada
32h 40mLIS-SAN
$671
11/11lun.
1 stopUnited Airlines
17h 55mSAN-LIS
11/20mié.
1 stopUnited Airlines
17h 15mLIS-SAN
$672
11/11lun.
3 stopsUnited Airlines
28h 30mSAN-LIS
11/20mié.
2 stopsUnited Airlines
20h 57mLIS-SAN
$684
10/1mar.
1 stopBritish Airways
21h 45mSAN-LIS
10/16mié.
1 stopBritish Airways
16h 05mLIS-SAN
$730
8/6mar.
1 stopBritish Airways
18h 55mSAN-LIS
8/20mar.
1 stopBritish Airways
28h 35mLIS-SAN
$733
10/1mar.
2 stopsDelta
21h 00mSAN-LIS
10/16mié.
1 stopDelta
22h 28mLIS-SAN
$747
10/1mar.
2 stopsDelta
21h 00mSAN-LIS
10/16mié.
2 stopsDelta
22h 55mLIS-SAN
$756
9/16lun.
1 stopAmerican Airlines
22h 00mSAN-LIS
9/25mié.
1 stopAmerican Airlines
18h 03mLIS-SAN
$832
7/29lun.
2 stopsAmerican Airlines
25h 01mSAN-OPO
8/17sáb.
2 stopsAmerican Airlines
27h 48mOPO-SAN
$857

Search by stops

Search by airline

Search by price

Recent one-way flight deals

9/21sáb.
3 stops
42h 23mSAN-LIS
$312
7/17mié.
1 stop
36h 20mSAN-LIS
$328
9/17mar.
3 stops
28h 23mSAN-LIS
$349
7/17mié.
2 stops
34h 58mSAN-LIS
$361
10/29mar.
2 stopsUnited Airlines
38h 55mSAN-OPO
$536
10/29mar.
3 stopsUnited Airlines
41h 51mSAN-OPO
$545
7/29lun.
2 stopsDelta
25h 05mSAN-OPO
$596
8/3sáb.
1 stopAmerican Airlines
26h 26mSAN-LIS
$675
9/21sáb.
2 stopsBritish Airways
42h 20mSAN-LIS
$1,660
9/21sáb.
1 stopBritish Airways
22h 00mSAN-LIS
$2,378

Search by stops

Search by airline

Search by price

Last minute flights from San Diego to Portugal

Last minute flight, train and bus deals

6/12mié.
multi-stopUnited Airlines
19h 05mSAN-OPO
6/27jue.
multi-stopUnited Airlines
18h 50mOPO-SAN
$923
6/12mié.
multi-stopBritish Airways
16h 45mSAN-LIS
6/26mié.
multi-stopBritish Airways
28h 40mLIS-SAN
$933
6/11mar.
multi-stopDelta
28h 55mSAN-LIS
6/27jue.
multi-stopDelta
15h 41mLIS-SAN
$939
6/11mar.
multi-stopDelta
28h 55mSAN-LIS
6/27jue.
multi-stopDelta
20h 18mLIS-SAN
$943
6/13jue.
multi-stopUnited Airlines
16h 35mSAN-OPO
7/4jue.
multi-stopUnited Airlines
19h 06mOPO-SAN
$993
6/12mié.
multi-stopAir Canada
24h 15mSAN-LIS
6/27jue.
multi-stopAir Canada
19h 22mLIS-SAN
$994
6/12mié.
multi-stopAir Canada
24h 15mSAN-LIS
6/27jue.
multi-stopAir Canada
17h 35mLIS-SAN
$1,058
6/11mar.
multi-stopAmerican Airlines
24h 33mSAN-LIS
7/13sáb.
multi-stopAmerican Airlines
27h 40mLIS-SAN
$1,177
6/9dom.
multi-stopAmerican Airlines
40h 05mSAN-FAO
6/16dom.
multi-stopAmerican Airlines
31h 42mFAO-SAN
$1,307
6/12mié.
multi-stopBritish Airways
16h 45mSAN-LIS
6/29sáb.
multi-stopBritish Airways
28h 25mLIS-SAN
$1,493

Search by stops

Search by airline

Search by price

San Diego - Portugal Flights

Departure:

San Diego (SAN)United States

Return flight deals:

Portugal - San Diego

Cabin classes: