$302+ 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 7/21. Fares are subject to change and may not be available on all flights or dates of travel.
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.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 May 1, 2025.
Most accurate provider | AranGrant 3 stars |
|---|---|
Most trusted provider | AranGrant 3 stars |
Round-trip from | $600 (oojo) |
One-way from | $323 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $973 |
Good round-trip deal | $737 or less |
Good one-way deal | $333 or less |
Find flight deals from San Francisco to Portugal
Cheapest flights from San Francisco to PortugalExplore 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 May 1, 2025.
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 May 1, 2025.
This oojo deal was found by Cheapflights users on 4/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Air Canada deal was found by Cheapflights users on 4/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This CheapOair deal was found by Cheapflights users on 4/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Finnair deal was found by Cheapflights users on 4/30. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 4/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Scandinavian Airlines deal was found by Cheapflights users on 4/29. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This SWISS deal was found by Cheapflights users on 4/30. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This oojo deal was found by Cheapflights users on 4/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This oojo deal was found by Cheapflights users on 4/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This oojo deal was found by Cheapflights users on 4/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Virgin Atlantic deal was found by Cheapflights users on 4/29. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight 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 May 1, 2025.
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
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Tue 10/14
8:30 am-9:20 am
1 stop16h 50m
Lisbon Humberto Delgado
Tue 10/28
11:00 am-9:37 pm
1 stop17h 37m
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Wed 10/22
8:30 am-9:20 am
1 stop16h 50m
Lisbon Humberto Delgado
Tue 10/28
12:35 pm-5:25 pm
1 stop35h 50m
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Wed 10/8
6:00 am-9:20 am
2 stops19h 20m
Lisbon Humberto Delgado
Sun 11/2
11:00 am-5:05 pm
2 stops38h 05m
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Mon 10/6
7:30 pm-2:45 pm
1 stop35h 15m
Lisbon Humberto Delgado
Wed 11/5
1:35 pm-4:25 pm
2 stops34h 50m
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Wed 8/6
7:40 pm-10:35 am
1 stop30h 55m
Lisbon Humberto Delgado
Mon 8/18
8:15 pm-4:30 pm
1 stop28h 15m
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Wed 10/8
1:00 pm-10:45 am
1 stop13h 45m
Lisbon Humberto Delgado
Mon 11/10
11:25 am-11:50 am
1 stop32h 25m
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Mon 10/6
4:20 pm-11:35 am
Nonstop11h 15m
Lisbon Humberto Delgado
Mon 10/13
9:55 am-2:30 pm
Nonstop12h 35m
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Wed 10/22
6:00 am-8:00 am
2 stops18h 00m
Lisbon Humberto Delgado
Wed 10/29
11:15 am-11:20 pm
2 stops19h 05m
San FranciscoFunchal
SFO - FNC
SFOFNC
San Francisco
Mon 10/27
5:35 pm-1:00 am
1 stop24h 25m
Funchal Madeira
Sun 11/9
4:10 am-2:45 pm
1 stop18h 35m
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Thu 9/18
2:28 pm-8:05 pm
2 stops21h 37m
Lisbon Humberto Delgado
Tue 9/30
9:10 am-6:10 pm
1 stop17h 00m
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.
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, January is the cheapest month in which you can book a flight from San Francisco to Portugal (average of $612). Flying from San Francisco to Portugal in June is currently the most expensive (average of $1,178). 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 May 1, 2025.
Unlike in the morning, when flights are generally more expensive, you can save up to 2% on flights from San Francisco to Portugal by exploring options for tickets at noon.
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 evenings when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Rainfall in Portugal by month
Plan your trip to Portugal by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Portugal ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Portugal when rainfall is around 0.2 in.
Temperature in Portugal by month
Plan your trip to Portugal by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Portugal, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).
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 May 1, 2025.
To help decide which airline to fly from San Francisco to Portugal, see what other customers have to say about Delta, KLM and Air Transat. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
Overall
Entertainment
Crew
Comfort
Food
Reviews
Aaron,Oct 2024
LAX - LHR
Boarding
Overall
Entertainment
Crew
Comfort
Food
Reviews
Aaron,Oct 2024
LAX - LHR
Boarding
Overall
Entertainment
Crew
Comfort
Food
Reviews
Aaron,Oct 2024
LAX - LHR
Boarding
Overall
Entertainment
Crew
Comfort
Food
Reviews
Aaron,Oct 2024
LAX - LHR
Boarding
Overall
Entertainment
Crew
Comfort
Food
Reviews
Aaron,Oct 2024
LAX - LHR
Boarding
Overall
Entertainment
Crew
Comfort
Food
Reviews
Aaron,Oct 2024
LAX - LHR
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.
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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 May 1, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$375 | Average$1,017 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$425 | Average$844 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$556 | Average$1,034 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$560 | Average$985 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$571 | Average$1,267 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$581 | Average$839 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$586 | Average$914 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$596 | Average$738 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$597 | Average$1,100 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$609 | Average$869 | FlexibilityNo cancel fee | On-time88% |