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Cheap Flights from San Francisco to Portugal

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Lisbon
Lisbon1 stop$675
Porto
Porto1 stop$692
Faro
Faro1 stop$728
Ponta Delgada
Ponta Delgada1 stop$964
Funchal
Funchal1 stop$686
Lajes
Lajes1 stop$802
Pico Island
Pico Island2 stops$1,061
Horta
Horta2 stops$2,386
Velas
Velas2 stops$1,102
Lisbon
Lisbon1 stop$675
Porto
Porto1 stop$692
Faro
Faro1 stop$728
Ponta Delgada
Ponta Delgada1 stop$964
Funchal
Funchal1 stop$686
Lajes
Lajes1 stop$802
Pico Island
Pico Island2 stops$1,061
Horta
Horta2 stops$2,386
Velas
Velas2 stops$1,102

Price, demand and travel trends for San Francisco to Portugal flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Are flights from San Francisco to Portugal cheaper or more expensive than last year?

Fares from San Francisco to Portugal are running about the same as they were around this time last year, averaging $929 round-trip.

What are the cheapest fares from San Francisco to Portugal right now?

Here are the cheapest round-trip fares from San Francisco to Portugal on KAYAK in the last week:

• Lisbon Humberto Delgado (LIS) from $675
• Funchal Madeira (FNC) from $686
• Porto (OPO) from $692
• Faro (FAO) from $728
• Lajes (TER) from $801

What’s the cheapest month to fly from San Francisco to Portugal?

February is the cheapest time of year to fly, with average fares of $641. Prices are highest in June, when average flight costs increase to around $1,281.

When is the best time to book flights from San Francisco to Portugal?

Booking last-minute, within 2 weeks of departure, usually offers the lowest fares from San Francisco to Portugal. It runs around 9% cheaper than the route's average fare over the last 12 months.

Which airport in Portugal is the cheapest to fly to from San Francisco?

Based on KAYAK data from the past 12 months, the cheapest airports to fly into Portugal are:

• Lisbon Humberto Delgado (LIS) from $897
• Porto (OPO) from $985
• Faro (FAO) from $1,090

What’s the cheapest day to fly from San Francisco to Portugal?

Sunday tends to be the cheapest day to fly from San Francisco to Portugal, while Saturday is the most expensive. Fares run about 12% higher that day, based on the past 12 months of KAYAK data.

What's the cheapest time of day to fly from San Francisco to Portugal?

Data from the past 12 months shows it's cheapest to fly to Portugal during the night with average prices of $853. The morning is the most expensive time to fly, with average prices of $1,110.

Key details for San Francisco to Portugal flights

Low season

February

Cheapest flight

$311
Beat the crowds with an average 32% drop in travelers.
The most popular month to fly with an average 31% increase in travelers.
One-way flight from San Francisco to Porto

Your San Francisco to Portugal flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from San Francisco to Portugal?

    Yes. Fares from San Francisco to Portugal are low right now. As a rule of thumb, a round-trip under $713 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from San Francisco to Portugal?

    Over the past 12 months, round-trip fares from San Francisco to Portugal have ranged from $713 to $1,313.

  • What are the main airports serving Portugal?

    Portugal has 15 airports. The three busiest are Lisbon Humberto Delgado (LIS) (76% of arrivals), Porto (OPO) (13%) and Lajes (TER) (5%).

  • What airlines fly nonstop from San Francisco to Portugal?

    Based on the flight schedule for the next 3 months, just one airline regularly flies nonstop from San Francisco to Portugal: TAP AIR PORTUGAL.

  • Where in Portugal can I fly nonstop from San Francisco?

    Based on the flight schedule for the next 3 months, you can only fly nonstop from San Francisco to Lisbon.

  • Is it cheaper to fly with a layover from San Francisco to Portugal?

    Yes. Nonstop flights from San Francisco to Portugal average $962 over the past 12 months, but flights with a layover can cost less. The most affordable connecting airports are:

    • Munich Franz Josef Strauss (MUC) from $709
    • Kastrup Copenhagen (CPH) from $737
    • Frankfurt am Main (FRA) from $823

  • How long is a flight from San Francisco to Portugal?

    Flights from San Francisco to Portugal take 11h 03m on average.

  • How often are flights from San Francisco to Portugal delayed and what's the average delay?

    14% of flights on this route are delayed by at least 15 minutes. The average delay is 2h 21m.

  • Which cabin classes are available on flights from San Francisco to Portugal?

    On flights from San Francisco to Portugal you can book Economy Class, Premium Economy Class, Business Class or First Class.

  • What are some popular landmarks in Portugal?

    KAYAK travelers' favorite landmarks in Portugal include:

    • Chiado
    • Ribeira Square
    • Avenida dos Aliados
    • Praça do Marquês de Pombal

  • What are the earliest and latest flights from San Francisco to Portugal?

    The earliest nonstop flight from San Francisco to Portugal departs at 4:20 pm and the latest departs at 8:15 pm. Nonstop flights take about 11h 03m.

  • Which airport should I fly into in Portugal?

    The airport you opt to fly into will depend on your destination. However, flying into Humberto Delgado Airport in Lisbon is usually most convenient. All flights from SFO to LIS are one-stop flights, while most flights to other airports have two stops. This shortens the duration of your flight to Portugal. Moreover, multiple airlines offer flights for this route, giving you more options. LIS also offers onsite health, family, and financial services.

  • What can I do during a layover at Humberto Delgado Airport?

    LIS has many convenient facilities and services. If you’re flying with kids, you can take them to the dedicated children’s playground at Terminal 1. You can also have a unique and relaxing experience during your layover by visiting the lounges at Terminal 1. You can enjoy a meal at the airport, as LIS has a selection of local Portuguese and international restaurants. You can also go shopping at the duty-free stores at the airport, where you can find great deals.

  • Which airport is closest to the Algarve beaches?

    If you plan on touring the beautiful beaches of Algarve, it's best to fly into Faro Airport (FAO). You can find cheap flights to FAO from SFO with Tap Air Portugal, Alaska Airlines, and Lufthansa. Flights into FAO have at least one, and usually two, stopovers. The flight can take from about 17h 30min up to 39h 45min. Faro Airport is only a few miles from the Algarve region, and you can easily get to the beaches by bus or taxi.

  • How can I get to the Lisbon city center from Humberto Delgado Airport?

    Humberto Delgado Airport is about four miles from the city center of Lisbon, the capital of Portugal. You can take the subway from Aeroporto Station, which is the most affordable means of transportation; the red metro line operates every few minutes to the city center and takes about 25min on average. Alternatively, you can catch Aerobus Express 91 in front of the airport to the city center.

Your guide to booking San Francisco to Portugal flights

Get tips on when to book, when to fly and what to know before your trip.
  • If you're flexible on timing, there's no need to rush. Booking last minute (within 2 weeks of departure) tends to be around 9% cheaper than the route's average fare over the last 12 months.

    Not ready to commit? Set a Price Alert and we'll let you know when prices change.
  • If your travel dates are flexible, book your trip for February when flights are typically cheapest and avoid June when prices are at their highest.
  • Flying on Sunday is usually the cheapest. Flights on Saturday cost about 12% more on average, so being flexible with your travel dates could help you save.
  • If you're looking to save, Lisbon Humberto Delgado (LIS) is the cheapest airport to fly into from San Francisco. If you have onward travel, don't forget to factor in the cost of your journey by train, bus or domestic flight.
  • Start your trip in Lisbon, which is the most popular destination in Portugal. From there, it's easy to continue on to other popular destinations such as Porto, Albufeira and Funchal.
  • If you want the shortest trip, choose the San Francisco to Portugal nonstop route. If you'd rather save money, the route via Munich Franz Josef Strauss (MUC) is usually the cheapest.
  • San Francisco International Airport (SFO) has four terminals, with Terminals A and G serving flights to Portugal. All flights from SFO to Portugal have at least one layover en route.
  • If your flight to Portugal from SFO has been delayed, you can pass time at the airport by enjoying the art exhibitions, quietly reading a book in the reading room, or unwinding in the yoga room.
  • If you need medical attention after your flight to Humberto Delgado Airport (LIS) in Portugal, you can seek healthcare services at the various health stores and pharmacies at the airport.
  • You can drive yourself around Portugal with the latest car models from the rental car companies at the airports. Europcar, Goldcar, Guerin, and Hertz are some of the popular rental car companies at Portugal airports.
  • You may enter Portugal without a visa for stays of under 90 days. However, you must show a passport with three months validity from your intended departure date. It should also have at least two blank pages for the entry and exit stamps.

Reviews of the top 5 airlines serving from San Francisco to Portugal

 
Need help choosing which airline to fly with from San Francisco 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.
7.8
DeltaOverall score based on 8665 reviews
8.1Boarding
7.8Comfort
7.8Entertainment
7.2Food
8.5Crew
Airline reviews

WiFi was a major problem and if it does not work on a 4 hour flight then that lowers the overall experience

6.0 GoodGopal, Sep 2026
Read more Delta reviews

WiFi was a major problem and if it does not work on a 4 hour flight then that lowers the overall experience

The Airline Attendant found us in flight and moved us to seats in the front of economy due to the short time we would have to make our connecting flight. We really appreciated it.

Carmen was an absolute delight on the flight staff! Everyone was lovely and made it a very pleasant flight.

Internet connectivity still seems to be touchy on these flights, making it difficult to rely on it for getting work done.

My son’s suitcase was left behind at SFO and did not make the flight.

Crew was absolutely fantastic and we’re so welcoming and friendly ❤️

Flight delayed four separate times. I’m now one hour hours late to landing.

The plane was an older model, so it wasn’t as comfortable as others. The flight attendants were not helpful during onboarding. It was a full flight so there was chaos finding space for baggage.

Awesome! On time flight, early arrival, and a complimentary upgrade!

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

I have been flying united for a long time but now I’m done

Delayed - leaving, delayed getting to the gate at destination. What should have been a very easy flight and experience was not.

Better management of the boarding process. Is there any way you could forward all the window seats first? That's the Way Reno Air used to do it, and they had the fastest boarding in the industry!

overall a very good travel experience - left on time, arrived early. Mostly a smooth flight. Polaris seats were excellent, very good service and nice food with options.

Flight was over two hours late, but they notified us early in the morning. They ended up changing planes the food on board that was extremely mediocre and we were in premier class.

Food was very bad Crew was not so welcoming. Chairs was so uncomfortable

The business class had to wait to board last. Unacceptable

The air hostess was excellent. I have taken so many flight domestic and international, this is the first time the air hostess was so caring. She was a delight

We paid extra to check our bags ($90*2=$180) but our luggage remained in Frankfurt. VERY DISAPPOINTED as we were promised that our luggage would go to our destination. We had to pay 90€ to take a taxi back to the airport in Split the next day to get our bags so we would not miss our next step on our trip. We think we should be reimbursed for our checked bags. How can we coordinate this?

This was an auto-rebook due to being delayed from an earlier UA connecting flight. The boarding was fine, but they sat me in a middle seat when my original booking was a window seat. Overall, the flight was fine as it still got me to my final destination.

Turkey slices for breakfast. What happened to eggs, bacon, and sausage? The TV shows could’ve been more comprehensive as well as the movies.

Boarding felt a little chaotic as everyone was waiting around the gate. Food was great, service was good.

The chicken was so dry it was impossible to eat. No substitute was offered. The port to charge my phone was broken and all I got was a shrug from the crew. The entertainment system was glitchy and subtitles didn’t load. Crew seemed fully uninterested and unfriendly.

First time flying Business with Tap, I think it was a very good experience. It beats many domestic US carriers, the food options were really great, authentic Portuguese food, wines & deserts. Next time will do the free 24-48 hour stopover in Lisbon or Porto for sure.

Booked business with TAP from LAX to Cabo Verde - overall ok, but just doesn’t feel like business class. More of a budget airline

The business class seats were smaller and closer together than other airlines.

Food was edible, not great, and served by attendants who looked like they really were not happy working the flight. The section I was in was too warm making the 11 hour flight uncomfortable. Other areas on the plane were fine.

We had seats 1 D and 1E which is right to the front as there were no other seats available. It is right up at the galley and toilet. Whole flight was very noisy and busy and we didnt get a good flight or rest the entire flight. Its was a pretty costly Business class fare that felt like Economy class experience.

They took 8 hours and eventually cancelled the flight. Compensation has been very lackluster and communication has been slow and terrible.

Airline attendant never walks along the isle to check if everyone is ok. The food is worst I’ve experienced. Chicken pasta is very salty while the fish is bland and over-cooked. Only two toilets for the entire economy section.

Announcements were unintelligible. Entertainment system was non-existent. Ground crew kept changing story for flight delay.

Amazing and light experience, boarding on time, crew is super nice, clean salon and special thanks for movies availability. Provided by United Airlines

737-8 Max is an awful design. Toilets in the rear are inaccessible for most of the flight due to service carts.

Food was bad, and they used plastic for everything. For the amount we spent, it felt cheap and as if they were doing us a favor. They need to focus on true user delight, like other airlines such as Emirates, Cathay Pacific, and KLM do, and go above and beyond in terms of cabin facilities and passenger amenities (Earbuds, pillows, blankets were just cheap and completely useless)

No TV on the flight. The charging outlet was not working. No food, even a sandwich. The served orange was poor quality.

I was charge a baggage checking fee $68!! I volunteered to check my duffle bag which usually goes under my seat!

Very rude gate attendants in San Francisco who didn’t let me bring my little carry on (smaller than usual size) and after boarding I realized that there still were a lot of overhead compartment space (like a full section available in some spots). That made me lose 30 minutes at my destination at 1am and it could have broken something fragile that I had in it

The flight from SFO to YVR was delayed and my bag did not make it to my next flight from YVR to SYD. It took almost 3 days after I landed to get my bag and when I got it, it was filled with dust

All attendents were very efficient, pleasant and happy. Everything went smoothly. The seats could have been wider. There could have been more free food instead of just one small bar.

They rescheduled me and I had no issues with the new flight

I washed attendant for assistance and she never got back to me. I asked her a second time and she said she would check. She never did. The flight was over an hour late taking off No food service was offered despite over 4 hours on the flight

Boarding from the SFO lounge is a big improvement. Although the first class dining room inside the lounge is becoming very crowded.

Boarding was orderly, pilot and flight attendants were nice, entertainment options were good, and low sodium meals were quite tasty.

Flight delayed, connection was not at gate listed and so missed, staff were rude at Heathrow, phone tree stupid and difficult, took me 21 actual hours to reach my destination. Almost lost my hotel reservation after walking in a strange city alone after midnight because they would not put me up in a hotel at sfo or heathrow. I will never fly BA again and will tell all people and Instagram followers never to fly BA.

Wish the food and overall service was better. They treat Business class passengers same as economy

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

Check in was was and the agent was very friendly and helpful The lounge was nice...boarding was straight from the lounge Everything worked at our seats, and video entertainment was good ..food was mediocre

Airlines have to stop assuming passengers bring entertainment. Provide it like you used to in business class and above!! N

Crying baby the ENTIRE flight. Not your fault, but I paid 2700 for a premium economy ticket and it wasn't worth it. should have just stuck with coach. flight attendants very mediocre - minimal effort. Plane didn't seem very clean. Didn't have any cleansing wipes - most airlines give you this when you board. Flat screen scrolling didn't work. Toiletry case a joke - why bother at all?

Enjoyable flight, helpful crew everything was organized to accommodate passengers.

More options for your flight from San Francisco to Portugal

Complete your trip to Portugal with a hotel stay or car rental