HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portugal

$211+ Cheap flights from San Francisco (SFO) to Portugal

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LIS
Dec 12 — Dec 191
Fri 12/12
Fri 12/19
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Francisco to Portugal with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find flight deals from San Francisco to Portugal

Cheapest flights from San Francisco to Portugal
Explore the most affordable flight options available from San Francisco to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 12, 2025.

This KAYAK deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/278:17 pmSFO - FAO
2 stops53h 43mScandinavian Airlines
Tue 1/1310:50 amFAO - SFO
2 stops44h 18mScandinavian Airlines
Deal found 11/10$522
This American Airlines deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/117:15 amSFO - LIS
2 stops17h 50mMultiple Airlines
Thu 12/258:55 amLIS - SFO
2 stops21h 08mMultiple Airlines
Deal found 11/10$537
This United Airlines deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2911:28 pmSFO - LIS
1 stop25h 52mUnited Airlines
Sat 12/135:00 amLIS - SFO
1 stop15h 40mUnited Airlines
Deal found 11/11$538
This Gotogate deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2911:28 pmSFO - LIS
1 stop25h 52mMultiple Airlines
Sat 12/136:10 amLIS - SFO
1 stop21h 25mMultiple Airlines
Deal found 11/11$540
This FlightHub deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/55:00 amSFO - LIS
2 stops20h 20mMultiple Airlines
Fri 12/125:00 amLIS - SFO
1 stop15h 40mMultiple Airlines
Deal found 11/11$542
This United Airlines deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/135:00 amSFO - LIS
2 stops45h 15mUnited Airlines
Tue 12/235:00 amLIS - SFO
1 stop15h 40mUnited Airlines
Deal found 11/11$543
This Air Canada deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/17:30 amSFO - LIS
2 stops17h 50mAir Canada
Mon 12/85:00 amLIS - SFO
2 stops24h 39mAir Canada
Deal found 11/11$544
This Finnair deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1512:08 pmSFO - LIS
1 stop12h 57mMultiple Airlines
Wed 12/2411:05 amLIS - SFO
1 stop16h 00mMultiple Airlines
Deal found 11/11$545
This KAYAK deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/44:40 pmSFO - LIS
1 stop15h 25mScandinavian Airlines
Sun 12/144:55 pmLIS - SFO
1 stop29h 40mScandinavian Airlines
Deal found 11/10$546
This Air Canada deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/278:25 amSFO - LIS
2 stops16h 55mMultiple Airlines
Thu 12/410:55 amLIS - SFO
2 stops30h 34mMultiple Airlines
Deal found 11/10$549
This United deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/159:20 pmSFO - LIS
1 stop28h 55mMultiple Airlines
Sun 11/2312:35 pmLIS - SFO
1 stop35h 55mMultiple Airlines
Deal found 11/12$550
This Scandinavian Airlines deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/14:40 pmSFO - FAO
2 stops33h 05mScandinavian Airlines
Wed 12/1010:35 amFAO - SFO
2 stops36h 00mScandinavian Airlines
Deal found 11/10$579

Cheap flight deals from San Francisco to Portugal

Keep the following information in mind while searching for San Francisco to Portugal flight deals. Data was last updated November 12, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$482
(FlightHub)

One-way from

$211
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$718

Good round-trip deal

$483 or less

Good one-way deal

$244 or less
Provider with most accurate pricing for San Francisco-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Lisbon Humberto Delgado flights.
Search Deals
From San Francisco to Portugal
Search Deals
One-way flight from San Francisco to Portugal
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($148 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from San Francisco to Portugal.
Search Deals
Price to beat on a one-way flight from San Francisco to Portugal.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco to Portugal that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 12, 2025.
Use the filters below to find and compare flights from San Francisco to Portugal that are best for you.

Fly from

San Francisco

Fly to

Portugal

Route

Depart

Return

Price

San FranciscoFunchal

SFO - FNC

SFOFNC

San Francisco

Mon 2/2

2:05 pm-9:35 am

2 stops35h 30m

Funchal Madeira

Mon 2/9

10:25 am-11:50 am

1 stop33h 25m

$500

San FranciscoFunchal

SFO - FNC

SFOFNC

San Francisco

Fri 2/20

1:55 pm-9:20 am

1 stop35h 25m

Funchal Madeira

Thu 2/26

10:20 am-11:50 am

1 stop33h 30m

$519

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Wed 2/18

12:43 am-7:55 am

3 stops23h 12m

Lisbon Humberto Delgado

Sun 2/22

5:00 am-11:11 pm

2 stops26h 11m

$541

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Wed 1/28

12:43 am-9:20 am

3 stops24h 37m

Lisbon Humberto Delgado

Sun 2/22

5:00 am-11:11 pm

2 stops26h 11m

$541

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Mon 12/15

12:08 pm-9:05 am

1 stop12h 57m

Lisbon Humberto Delgado

Wed 12/24

11:05 am-7:05 pm

1 stop16h 00m

$545

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Fri 2/6

1:30 pm-1:20 pm

1 stop15h 50m

Lisbon Humberto Delgado

Sat 2/14

6:10 am-6:58 pm

2 stops20h 48m

$547

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Sun 12/14

6:07 am-10:15 am

1 stop20h 08m

Lisbon Humberto Delgado

Wed 12/24

11:55 am-11:05 pm

2 stops19h 10m

$549

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Mon 4/6

12:45 am-9:20 am

2 stops24h 35m

Lisbon Humberto Delgado

Fri 4/24

5:05 am-12:40 pm

1 stop15h 35m

$557

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Sat 5/2

10:45 pm-3:45 pm

2 stops33h 00m

Lisbon Humberto Delgado

Sat 5/9

7:00 am-1:24 am

2 stops26h 24m

$568

San FranciscoPorto

SFO - OPO

SFOOPO

San Francisco

Tue 4/28

4:35 pm-8:25 pm

1 stop19h 50m

Porto

Mon 5/18

10:35 pm-2:35 pm

1 stop24h 00m

$575

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from San Francisco to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from San Francisco with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Portugal

What is the cheapest month to book a flight from San Francisco to Portugal?

Currently, December is the cheapest month in which you can book a flight from San Francisco to Portugal (average of $498). Flying from San Francisco to Portugal in June is currently the most expensive (average of $782). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SFO to PT?

Find hourly flight availability from San Francisco to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 12, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 35% on flights from San Francisco to Portugal by exploring options for tickets in the evening.

What is the cheapest day to fly from San Francisco to Portugal?

Use this chart to determine the cheapest time to fly round-trip from San Francisco to Portugal. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Francisco to Portugal flight should consider departing on Friday afternoons when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portugal. Reviews last updated November 12, 2025.
Read through reviews of airlines operating flights from San Francisco to Portugal, such as Delta, United Airlines, and Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Overall

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
7.9
Good
8,009 reviews
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Overall

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
9,016 reviews
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Overall

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Canada
7.1
Good
10,443 reviews
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Overall

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
TAP AIR PORTUGAL
7.1
Good
2,059 reviews
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Overall

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
British Airways
6.7
Okay
7,513 reviews
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Overall

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from San Francisco to Portugal?

    For a flight from San Francisco to Portugal, you will be flying from San Francisco. San Francisco (SFO) is just 11.8 mi from the center of the city.

  • How popular is this San Francisco to Portugal flight route?

    This flight path from San Francisco to Portugal was viewed by 30 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Departing from San Francisco to Portugal will take you 19h 50m. The distance from San Francisco to Portugal is about 5566 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from San Francisco to Portugal?

    The most popular flight routes from San Francisco to Portugal are San Francisco - Lisbon Humberto Delgado, San Francisco - Porto and San Francisco - Ponta Delgada Nordela.

  • What are the most reliable airlines from San Francisco to Portugal?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from San Francisco to Portugal on time: Etihad Airways (93%), JetBlue (79%), TAP AIR PORTUGAL (79%).

  • What are the cheapest flights from San Francisco to Portugal?

    Looking at all options, your cheapest flight can be booked for $198. While the most popular route (San Francisco - Lisbon Humberto Delgado) can be booked for $448 on average, our data indicates $1,947 when flying from San Francisco to Portugal.

  • Can I find deals for flights from San Francisco to Portugal that include hotel bookings?

    Yes. In addition to deals on San Francisco to Portugal flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Portugal?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Portugal.

  • Can I find deals for business class flights from San Francisco to Portugal?

    Yes. Cheapflights offers flight deals from San Francisco to Portugal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Francisco to Portugal?

    Currently, December is the cheapest month in which you can book a flight from San Francisco to Portugal (average of $498). Flying from San Francisco to Portugal in June is currently the most expensive (average of $782). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Francisco to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Heathrow flights
Los Angeles to Charles de Gaulle flights
San Francisco to Charles de Gaulle flights
San Francisco to Heathrow flights
Los Angeles to Leonardo da Vinci/Fiumicino flights
Los Angeles to Istanbul flights
Los Angeles to Orly flights
Los Angeles to Gatwick flights
Los Angeles to Madrid flights
Los Angeles to London City flights
San Francisco to Istanbul flights
Los Angeles to Frankfurt flights
San Francisco to Gatwick flights
San Francisco to Leonardo da Vinci/Fiumicino flights
San Francisco to Frankfurt flights
San Francisco to London City flights
San Francisco to Lisbon flights
Los Angeles to Stansted flights
San Francisco to Barcelona-El Prat flights
Ontario to Charles de Gaulle flights
San Francisco to Amsterdam flights
Ontario to Heathrow flights
Los Angeles to Barcelona-El Prat flights
Los Angeles to Amsterdam flights
Los Angeles to Dublin flights
San Diego to Heathrow flights
San Francisco to Zurich flights
Los Angeles to Luton flights
Santa Ana to Heathrow flights
Los Angeles to Lisbon flights
San Francisco to Orly flights
San Francisco to Madrid flights
Los Angeles to Zurich flights
San Francisco to Dublin flights
Burbank to Charles de Gaulle flights
San Francisco to Stansted flights
Santa Ana to Charles de Gaulle flights
Ontario to Leonardo da Vinci/Fiumicino flights
San Francisco to Malpensa flights
Los Angeles to Munich flights
Santa Ana to Leonardo da Vinci/Fiumicino flights
San Francisco to Munich flights
Los Angeles to Athens flights
Los Angeles to Sabiha Gokcen flights
San Francisco to Linate flights
Los Angeles to Copenhagen flights
Los Angeles to Malpensa flights
San Francisco to Copenhagen flights
Las Vegas to Heathrow flights
San Jose to Charles de Gaulle flights

Top 10 airlines flying from San Francisco to Portugal

Discover the top 10 airlines that operate flights from San Francisco to Portugal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
LEVELCheapest$351Average$742FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$409Average$694FlexibilityNo cancel feeOn-time77%
IberiaCheapest$469Average$1,003FlexibilityNo cancel feeOn-time77%
KLMCheapest$497Average$770FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$529Average$811FlexibilityNo cancel feeOn-time70%
VuelingCheapest$532Average$869FlexibilityNo cancel feeOn-time88%
LufthansaCheapest$536Average$1,113FlexibilityNo cancel feeOn-time76%
SWISSCheapest$553Average$884FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$554Average$1,120FlexibilityNo cancel feeOn-time69%
Air FranceCheapest$555Average$765FlexibilityNo cancel feeOn-time77%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.