$321+ Cheap flights from San Francisco (SFO) to Portimão, 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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — FAO
Sep 25 — Oct 21
Round-trip
1 adult, Economy
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Find cheap flights from San Francisco to Portimão 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 Portimão
Cheapest
Best
Last-minute
One-way
Cheapest flights from San Francisco to PortimãoExplore the most affordable flight options available from San Francisco to Portimão. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 26, 2026.
Explore the most affordable flight options available from San Francisco to Portimão. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 26, 2026.
This Gotogate deal was found by Cheapflights users on 8/24. 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 10/177:35 pm -
1 stop20h 15m
Sun 11/14:30 pm -
1 stop30h 15m
Deal found 8/24![TAP AIR PORTUGAL logo]()
$729
This Gotogate deal was found by Cheapflights users on 8/24. 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 10/177:35 pm -
1 stop20h 15m
Sat 10/316:05 am -
1 stop16h 40m
Deal found 8/24![TAP AIR PORTUGAL logo]()
$741
This Booking.com deal was found by Cheapflights users on 8/25. 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.
Tue 10/134:20 pm -
1 stop17h 00m
Tue 10/274:30 pm -
1 stop30h 15m
Deal found 8/25![TAP AIR PORTUGAL logo]()
$744
This KLM deal was found by Cheapflights users on 8/25. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/21:50 pm -
1 stop16h 00m
Thu 11/122:40 pm -
1 stop29h 05m
Deal found 8/25![KLM logo]()
$752
This Justfly.com deal was found by Cheapflights users on 8/23. 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.
Mon 11/24:35 pm -
1 stop23h 15m
Thu 11/124:30 pm -
1 stop31h 35m
Deal found 8/23![TAP AIR PORTUGAL logo]()
$755
This FlightHub deal was found by Cheapflights users on 8/24. 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.
Mon 11/29:40 pm -
1 stop31h 40m
Thu 11/1212:30 pm -
2 stops39h 05m
Deal found 8/24![Multiple Airlines logo]()
$860
Best flights from San Francisco to PortimãoDiscover carefully curated flight deals from San Francisco to Portimão that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 26, 2026.
Discover carefully curated flight deals from San Francisco to Portimão that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 26, 2026.
This KLM deal was found by Cheapflights users on 8/26. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/210:35 am -
2 stops19h 15m
Thu 11/122:40 pm -
1 stop29h 05m
Deal found 8/26![KLM logo]()
$756
This British Airways deal was found by Cheapflights users on 8/25. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/302:01 pm -
2 stops21h 04m
Fri 11/610:50 am -
2 stops20h 50m
Deal found 8/25![British Airways logo]()
$1,015
This Air Canada deal was found by Cheapflights users on 8/24. 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 11/28:40 am -
2 stops23h 00m
Thu 11/126:05 am -
3 stops20h 51m
Deal found 8/24![Multiple Airlines logo]()
$1,037
This KLM deal was found by Cheapflights users on 8/25. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/210:00 am -
2 stops19h 50m
Sat 1/302:40 pm -
1 stop29h 05m
Deal found 8/25![KLM logo]()
$861
This Mytrip deal was found by Cheapflights users on 8/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/178:10 am -
2 stops19h 05m
Sun 11/18:15 pm -
3 stops31h 20m
Deal found 8/24![Multiple Airlines logo]()
$1,053
Last-minute flights from San Francisco to PortimãoDiscover last-minute flight deals from San Francisco to Portimão. Data last updated August 26, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Portimão. Data last updated August 26, 2026 and is based on user searches.
This Air France deal was found by Cheapflights users on 8/23. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:00 am -
2 stops20h 40m
Sun 9/69:20 am -
2 stops22h 38m
Deal found 8/23![Multiple Airlines logo]()
$1,380
This Kiwi.com deal was found by Cheapflights users on 8/22. 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 9/115:35 pm -
1 stop19h 55m
Sat 10/37:35 am -
2 stops39h 05m
Deal found 8/22![Multiple Airlines logo]()
$1,239
This Cheapflightsfares deal was found by Cheapflights users on 8/23. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1111:58 pm -
2 stops35h 27m
Sat 10/37:40 pm -
2 stops32h 24m
Deal found 8/23![Aer Lingus logo]()
$1,316
This KLM deal was found by Cheapflights users on 8/22. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/111:45 pm -
1 stop23h 20m
Sat 10/39:55 pm -
1 stop21h 50m
Deal found 8/22![KLM logo]()
$1,369
This Kiwi.com deal was found by Cheapflights users on 8/23. 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.
Sun 9/135:40 pm -
1 stop18h 15m
Sun 9/202:20 pm -
2 stops31h 45m
Deal found 8/23![Multiple Airlines logo]()
$1,263
One-way flights from San Francisco to PortimãoSearch for one-way flight options from San Francisco to Portimão. Find affordable one-way fares based on user searches. Data last updated August 26, 2026.
Search for one-way flight options from San Francisco to Portimão. Find affordable one-way fares based on user searches. Data last updated August 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/24. 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.
Mon 10/1911:00 am -
3 stops24h 45m
Deal found 8/24![Multiple Airlines logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 8/25. 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.
Mon 9/288:53 pm -
3 stops40h 02m
Deal found 8/25![Multiple Airlines logo]()
$327
This Kiwi.com deal was found by Cheapflights users on 8/24. 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.
Tue 9/2910:36 am -
3 stops26h 19m
Deal found 8/24![Multiple Airlines logo]()
$330
This Kiwi.com deal was found by Cheapflights users on 8/24. 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.
Thu 10/11:45 pm -
3 stops47h 40m
Deal found 8/24![Multiple Airlines logo]()
$340
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 9/267:00 am -
3 stops31h 50m
Deal found 8/25![Multiple Airlines logo]()
$354
This Kiwi.com deal was found by Cheapflights users on 8/24. 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.
Mon 10/2611:00 am -
3 stops27h 10m
Deal found 8/24![Multiple Airlines logo]()
$356
This Kiwi.com deal was found by Cheapflights users on 8/25. 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.
Wed 9/3010:36 am -
3 stops28h 49m
Deal found 8/25![Multiple Airlines logo]()
$364
This Kiwi.com deal was found by Cheapflights users on 8/25. 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.
Sun 9/2711:58 pm -
3 stops34h 27m
Deal found 8/25![Multiple Airlines logo]()
$367
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 10/210:05 pm -
3 stops34h 20m
Deal found 8/25![Multiple Airlines logo]()
$369
Find flight deals from San Francisco to Portimão
Keep the following information in mind while searching for San Francisco to Portimão flight deals. Data was last updated August 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $729 (Gotogate) |
One-way from | $321 (Kiwi.com) |
Popular in | March |
Cheapest in | November |
Average price | $1,515 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Francisco to Portimão 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 7,457,451 searches. Data last updated August 26, 2026.
Use the filters below to find and compare flights from San Francisco to Portimão that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San FranciscoFaro
SFO San Francisco - FAO Faro
SFOFAO
San Francisco
Mon 11/2
10:35 am-1:50 pm
2 stops19h 15m
Faro
Thu 11/12
2:40 pm-11:45 am
1 stop29h 05m
$756
San FranciscoFaro
SFO San Francisco - FAO Faro
SFOFAO
San Francisco
Sat 1/2
10:00 am-1:50 pm
2 stops19h 50m
Faro
Sat 1/30
2:40 pm-11:45 am
1 stop29h 05m
$861
Quickest round-trip
San FranciscoFaro
SFO San Francisco - FAO Faro
SFOFAO
San Francisco
Fri 10/30
2:01 pm-6:05 pm
2 stops21h 04m
Faro
Fri 11/6
10:50 am-11:40 pm
2 stops20h 50m
$1,015
San FranciscoFaro
SFO San Francisco - FAO Faro
SFOFAO
San Francisco
Mon 11/2
8:40 am-3:40 pm
2 stops23h 00m
Faro
Thu 11/12
6:05 am-6:56 pm
3 stops20h 51m
$1,037
San FranciscoFaro
SFO San Francisco - FAO Faro
SFOFAO
San Francisco
Sat 10/17
8:10 am-11:15 am
2 stops19h 05m
Faro
Sun 11/1
8:15 pm-7:35 pm
3 stops31h 20m
$1,053
Cheapest one-way
San FranciscoFaro
SFO San Francisco - FAO Faro
SFOFAO
San Francisco
Thu 9/24
8:30 pm-5:30 pm
1 stop37h 00m
$404
San FranciscoFaro
SFO San Francisco - FAO Faro
SFOFAO
San Francisco
Sat 9/26
7:00 am-7:00 pm
3 stops28h 00m
$425
Quickest one-way
San FranciscoFaro
SFO San Francisco - FAO Faro
SFOFAO
San Francisco
Mon 9/28
1:45 pm-5:25 pm
1 stop19h 40m
$468
San FranciscoFaro
SFO San Francisco - FAO Faro
SFOFAO
San Francisco
Tue 9/29
8:10 am-1:50 pm
2 stops21h 40m
$471
San FranciscoFaro
SFO San Francisco - FAO Faro
SFOFAO
San Francisco
Sun 9/27
11:50 pm-5:25 pm
2 stops33h 35m
$472
Showing 1-10 of 11 resultsSorted by cheapest first
Best time to book a flight from San Francisco to Portimão
Have a flexible travel schedule? Discover the best time to fly to Portimão from San Francisco with our price prediction graph.
SFO-FAO
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 Portimão
SFO-P0T
SFO-FAO
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing Portimão
Get insights into the airlines that provide service to Portimão. 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 Portimão. Reviews last updated August 26, 2026.
Read through reviews of airlines operating flights from San Francisco to Portimão, such as United Airlines,Aer Lingus, andTAP AIR PORTUGAL. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.7
Overall
7.4
Comfort
7.3
Crew
8.1
Food
6.7
Entertainment
7.1
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Boarding
7.7
Overall
7.4
Comfort
7.3
Crew
8.1
Food
6.7
Entertainment
7.1
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Boarding
7.7
Overall
7.4
Comfort
7.3
Crew
8.1
Food
6.7
Entertainment
7.1
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Boarding
7.7
Overall
7.4
Comfort
7.3
Crew
8.1
Food
6.7
Entertainment
7.1
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Related info for your journey
Find useful and relevant information for your journey from San Francisco to Portimão. 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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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for San Francisco to Portimão
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Portimão by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from San Francisco to Portimão by cabin class
Find flights from San Francisco to Portimão, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Francisco and Portimão flights
Browse other San Francisco and Portimão flight options. Last updated on August 26, 2026.
Other flights from San Francisco
Browse through other flights departing from San Francisco. Flights are based on user searches made on Cheapflights and were last updated on August 26, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
San Francisco to Portimão flights
Consider these flights traveling from San Francisco to Portimão.
Top 3 airlines flying from San Francisco to Portimão
Discover the top 3 airlines that operate flights from San Francisco to Portimão. 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 7,457,451 searches. Data last updated August 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$440 | Average$1,265 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$606 | Average$790 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$966 | Average$1,270 | FlexibilityNo cancel fee | On-timeN/A |