Portugal

$364+ 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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LIS
May 1 — May 81
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Cheap 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 April 1, 2026.

This Flightnetwork deal was found by Cheapflights users on 3/30. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:35 pm
SFO
-
LIS
Nonstop11h 15m
TAP AIR PORTUGAL
Fri 5/112:20 pm
LIS
-
SFO
Nonstop12h 30m
TAP AIR PORTUGAL
Deal found 3/30$534
This Super.com deal was found by Cheapflights users on 3/27. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/248:20 pm
SFO
-
LIS
Nonstop11h 15m
TAP AIR PORTUGAL
Thu 4/301:20 pm
LIS
-
SFO
Nonstop12h 35m
TAP AIR PORTUGAL
Deal found 3/27$539
This Gotogate deal was found by Cheapflights users on 3/27. 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.
Fri 4/248:20 pm
SFO
-
LIS
Nonstop11h 15m
TAP AIR PORTUGAL
Thu 5/712:00 pm
LIS
-
SFO
Nonstop12h 35m
TAP AIR PORTUGAL
Deal found 3/27$541
This Super.com deal was found by Cheapflights users on 3/29. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/284:35 pm
SFO
-
LIS
Nonstop11h 15m
TAP AIR PORTUGAL
Tue 5/510:00 am
LIS
-
SFO
Nonstop12h 35m
TAP AIR PORTUGAL
Deal found 3/29$542
This Booking.com deal was found by Cheapflights users on 3/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:35 pm
SFO
-
LIS
Nonstop11h 15m
TAP AIR PORTUGAL
Fri 4/2412:20 pm
LIS
-
SFO
Nonstop12h 30m
TAP AIR PORTUGAL
Deal found 3/28$544
This oojo deal was found by Cheapflights users on 3/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/284:35 pm
SFO
-
LIS
Nonstop11h 15m
TAP AIR PORTUGAL
Fri 5/2212:20 pm
LIS
-
SFO
Nonstop12h 30m
TAP AIR PORTUGAL
Deal found 3/28$547
This FlightHub deal was found by Cheapflights users on 3/31. 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.
Tue 4/284:35 pm
SFO
-
LIS
Nonstop11h 15m
TAP AIR PORTUGAL
Sat 5/231:10 pm
LIS
-
SFO
Nonstop12h 25m
TAP AIR PORTUGAL
Deal found 3/31$553
This Justfly.com deal was found by Cheapflights users on 3/28. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/74:35 pm
SFO
-
LIS
Nonstop11h 15m
TAP AIR PORTUGAL
Fri 4/2412:20 pm
LIS
-
SFO
Nonstop12h 30m
TAP AIR PORTUGAL
Deal found 3/28$559
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/248:20 pm
SFO
-
LIS
Nonstop11h 15m
TAP AIR PORTUGAL
Tue 4/2810:00 am
LIS
-
SFO
Nonstop12h 35m
TAP AIR PORTUGAL
Deal found 3/30$560
This Kiwi.com deal was found by Cheapflights users on 3/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:35 pm
SFO
-
LIS
Nonstop11h 15m
TAP AIR PORTUGAL
Tue 4/2810:00 am
LIS
-
SFO
Nonstop12h 35m
TAP AIR PORTUGAL
Deal found 3/27$561
This CrystalTravel deal was found by Cheapflights users on 3/29. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/24:40 pm
SFO
-
LIS
1 stop15h 25m
Scandinavian Airlines
Wed 12/167:00 am
LIS
-
SFO
1 stop15h 35m
Scandinavian Airlines
Deal found 3/29$625
This FlightHub deal was found by Cheapflights users on 4/1. 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.
Wed 4/226:45 pm
SFO
-
OPO
1 stop37h 00m
Turkish Airlines
Wed 4/294:40 pm
OPO
-
SFO
1 stop26h 10m
Turkish Airlines
Deal found 4/1$644

Find 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 April 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$534
(Flightnetwork)

One-way from

$364
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$812

Good round-trip deal

$632 or less

Good one-way deal

$459 or less
Provider with most accurate pricing for San Francisco-Lisbon Humberto Delgado flight deals.
Provider most trusted by Cheapflights users for San Francisco-Lisbon Humberto Delgado flights.
From San Francisco to Portugal
One-way flight from San Francisco to Portugal
Highest demand for flights based on searches. 18% potential increase in price ($183 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($29 potential savings vs. average RT price).
Average for round-trip flights in April 2026
Price to beat on a round-trip flight from San Francisco to Portugal.
Price to beat on a one-way flight from San Francisco to Portugal.

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 April 1, 2026.
Use the filters below to find and compare flights from San Francisco to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoPonta Delgada

SFO - PDL

SFOPDL

San Francisco

Thu 4/16

7:55 pm-6:50 pm

1 stop15h 55m

Ponta Delgada Nordela

Wed 4/29

7:30 pm-5:55 pm

1 stop29h 25m

$684

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Sun 4/12

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

Tue 4/28

7:45 pm-11:45 am

1 stop24h 00m

$705

San FranciscoFunchal

SFO - FNC

SFOFNC

San Francisco

Sun 4/12

4:35 pm-6:05 pm

1 stop17h 30m

Funchal Madeira

Mon 4/27

6:55 pm-1:50 pm

1 stop26h 55m

$719

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Tue 4/21

2:57 pm-5:50 pm

2 stops18h 53m

Lisbon Humberto Delgado

Wed 5/6

5:00 am-3:59 pm

2 stops18h 59m

$724

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Wed 4/22

2:57 pm-5:50 pm

2 stops18h 53m

Lisbon Humberto Delgado

Wed 4/29

11:55 am-12:27 am

2 stops20h 32m

$724

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Tue 4/21

5:59 am-11:15 am

2 stops21h 16m

Lisbon Humberto Delgado

Tue 4/28

9:50 am-11:37 pm

2 stops21h 47m

$731

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Thu 4/23

1:45 pm-6:45 pm

1 stop21h 00m

Lisbon Humberto Delgado

Wed 4/29

5:00 am-7:56 pm

2 stops22h 56m

$774

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Thu 4/23

1:45 pm-6:45 pm

1 stop21h 00m

Lisbon Humberto Delgado

Fri 5/8

5:00 am-9:19 pm

2 stops24h 19m

$775

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Fri 4/17

1:09 pm-6:45 pm

2 stops21h 36m

Lisbon Humberto Delgado

Fri 4/24

5:35 am-12:50 pm

1 stop15h 15m

$776

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Tue 5/12

11:55 am-2:55 pm

2 stops19h 00m

Lisbon Humberto Delgado

Thu 5/21

5:00 am-4:57 pm

2 stops19h 57m

$794

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 60 resultsSorted by cheapest first
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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, April is the cheapest month in which you can book a flight from San Francisco to Portugal (average of $431). Flying from San Francisco to Portugal in July is currently the most expensive (average of $685). 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 April 1, 2026.

When flying from San Francisco to Portugal, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How often are flights from San Francisco to Portugal delayed?

About 18% of weekly flights between San Francisco and Portugal have experienced delays in the past year, with the average delay time being 114 minutes.

What is the most punctual flight time for San Francisco to Portugal flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Monday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on San Francisco to Portugal flights?

Over the last year, TAP AIR PORTUGAL have had the lowest number of delays on this route, with just 18% of flights being delayed.

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 April 1, 2026.
Read through reviews of airlines operating flights from San Francisco to Portugal, such as Delta,United Airlines, andAir Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Food

7.2

Overall

7.9

Crew

8.5

Boarding

8.1

Comfort

7.9

Entertainment

7.8

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.

Food

7.2

Overall

7.9

Crew

8.5

Boarding

8.1

Comfort

7.9

Entertainment

7.8

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.

Food

7.2

Overall

7.9

Crew

8.5

Boarding

8.1

Comfort

7.9

Entertainment

7.8

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.

Food

7.2

Overall

7.9

Crew

8.5

Boarding

8.1

Comfort

7.9

Entertainment

7.8

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.

Food

7.2

Overall

7.9

Crew

8.5

Boarding

8.1

Comfort

7.9

Entertainment

7.8

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.

Food

7.2

Overall

7.9

Crew

8.5

Boarding

8.1

Comfort

7.9

Entertainment

7.8

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 11.0 mi from the center of the city.

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

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

    Departing from San Francisco to Portugal will take you 15h 55m. The distance from San Francisco to Portugal is about 5005 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from San Francisco to Portugal one-way?

    The cheapest airlines for a one-way flight from San Francisco to Portugal are KLM ($165), Iberia ($235), and British Airways ($238).

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

  • 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 (87%), JetBlue (87%), TAP AIR PORTUGAL (87%).

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

    Looking at all options, your cheapest flight can be booked for $318. While the most popular route (San Francisco - Lisbon Humberto Delgado) can be booked for $541 on average, our data indicates $1,790 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, April is the cheapest month in which you can book a flight from San Francisco to Portugal (average of $431). Flying from San Francisco to Portugal in July is currently the most expensive (average of $685). 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

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Alternative routes for San Francisco to Portugal

See prices for flight routes from nearby airports that may be better suited for you.

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 April 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
LEVELCheapest$235Average$704FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$309Average$986FlexibilityNo cancel feeOn-time77%
Scandinavian AirlinesCheapest$409Average$652FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$431Average$875FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$440Average$1,065FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$488Average$866FlexibilityNo cancel feeOn-time76%
KLMCheapest$489Average$721FlexibilityNo cancel feeOn-time75%
SWISSCheapest$493Average$939FlexibilityNo cancel feeOn-time79%
Air FranceCheapest$495Average$721FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$508Average$756FlexibilityNo cancel feeOn-time70%

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