$323+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LIS
Jul 31 — Aug 71
Round-trip
1 adult, Economy
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Find cheap flights from San Francisco to Portugal with Cheapflights
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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 July 1, 2026.
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 July 1, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 6/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/124:45 pm
SFO
- FNC
2 stops37h 00m
Scandinavian Airlines
Tue 11/173:55 pm
FNC
- SFO
2 stops30h 55m
Scandinavian Airlines
Deal found 6/28![Scandinavian Airlines logo]()
$624
This FlightHub deal was found by Cheapflights users on 6/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/285:45 pm
SFO
- OPO
1 stop16h 15m
Scandinavian Airlines
Wed 11/411:55 am
OPO
- SFO
1 stop34h 55m
Scandinavian Airlines
Deal found 6/29![Scandinavian Airlines logo]()
$628
This Mytrip deal was found by Cheapflights users on 6/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/94:30 pm
SFO
- OPO
2 stops21h 25m
Multiple Airlines
Mon 8/1710:40 pm
OPO
- SFO
2 stops23h 50m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$703
This oojo deal was found by Cheapflights users on 7/1. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/294:20 pm
SFO
- FAO
1 stop23h 30m
TAP AIR PORTUGAL
Thu 10/86:05 am
FAO
- SFO
1 stop16h 25m
TAP AIR PORTUGAL
Deal found 7/1![TAP AIR PORTUGAL logo]()
$723
This oojo deal was found by Cheapflights users on 6/30. 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.
Tue 9/224:20 pm
SFO
- FAO
1 stop17h 00m
TAP AIR PORTUGAL
Mon 9/286:10 pm
FAO
- SFO
1 stop27h 25m
TAP AIR PORTUGAL
Deal found 6/30![TAP AIR PORTUGAL logo]()
$724
This Mytrip deal was found by Cheapflights users on 6/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/174:30 pm
SFO
- OPO
3 stops34h 20m
Multiple Airlines
Wed 9/210:00 pm
OPO
- SFO
2 stops24h 30m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$726
This oojo deal was found by Cheapflights users on 6/29. 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.
Wed 10/285:35 pm
SFO
- FAO
1 stop33h 45m
TAP AIR PORTUGAL
Wed 11/46:05 am
FAO
- SFO
1 stop16h 40m
TAP AIR PORTUGAL
Deal found 6/29![TAP AIR PORTUGAL logo]()
$726
This Mytrip deal was found by Cheapflights users on 6/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/214:45 pm
SFO
- OPO
3 stops31h 15m
Multiple Airlines
Mon 9/2810:55 am
OPO
- SFO
2 stops35h 45m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$738
This oojo deal was found by Cheapflights users on 6/29. 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.
Tue 10/139:05 pm
SFO
- OPO
1 stop18h 20m
Lufthansa
Tue 10/206:20 am
OPO
- SFO
1 stop20h 40m
Lufthansa
Deal found 6/29![Lufthansa logo]()
$748
This oojo deal was found by Cheapflights users on 6/30. 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.
Tue 9/224:20 pm
SFO
- PDL
1 stop19h 20m
TAP AIR PORTUGAL
Mon 9/287:40 pm
PDL
- SFO
1 stop24h 55m
TAP AIR PORTUGAL
Deal found 6/30![TAP AIR PORTUGAL logo]()
$749
This FlightHub deal was found by Cheapflights users on 7/1. 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.
Mon 9/284:30 pm
SFO
- FAO
1 stop23h 20m
TAP AIR PORTUGAL
Wed 10/76:10 pm
FAO
- SFO
1 stop28h 20m
TAP AIR PORTUGAL
Deal found 7/1![TAP AIR PORTUGAL logo]()
$754
This Delta deal was found by Cheapflights users on 6/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:00 am
SFO
- OPO
2 stops21h 35m
Delta
Wed 11/45:00 am
OPO
- SFO
2 stops20h 13m
Delta
Deal found 6/29![Delta logo]()
$756
Best flights from San Francisco to PortugalDiscover carefully curated flight deals from San Francisco to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 1, 2026.
Discover carefully curated flight deals from San Francisco to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 1, 2026.
This Delta deal was found by Cheapflights users on 7/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2911:35 am
SFO
- OPO
1 stop14h 55m
Delta
Mon 10/511:25 am
OPO
- SFO
1 stop32h 20m
Delta
Deal found 7/1![Delta logo]()
$777
This United Airlines deal was found by Cheapflights users on 6/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/166:15 am
SFO
- PDL
2 stops19h 25m
United Airlines
Tue 9/111:00 am
PDL
- SFO
1 stop13h 48m
United Airlines
Deal found 6/28![United Airlines logo]()
$829
This United deal was found by Cheapflights users on 6/29. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/177:49 pm
SFO
- OPO
2 stops26h 26m
Multiple Airlines
Wed 9/211:20 am
OPO
- SFO
2 stops20h 47m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$845
This Scandinavian Airlines deal was found by Cheapflights users on 7/1. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2011:50 pm
SFO
- LIS
2 stops38h 15m
Scandinavian Airlines
Wed 9/3011:50 pm
LIS
- SFO
2 stops32h 32m
Scandinavian Airlines
Deal found 7/1![Scandinavian Airlines logo]()
$873
This oojo deal was found by Cheapflights users on 6/28. 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.
Sat 8/157:35 pm
SFO
- FAO
1 stop20h 15m
TAP AIR PORTUGAL
Sun 8/306:10 pm
FAO
- SFO
1 stop27h 55m
TAP AIR PORTUGAL
Deal found 6/28![TAP AIR PORTUGAL logo]()
$876
This KLM deal was found by Cheapflights users on 6/29. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/248:10 pm
SFO
- OPO
1 stop17h 50m
KLM
Mon 9/2811:25 am
OPO
- SFO
1 stop32h 20m
KLM
Deal found 6/29![KLM logo]()
$896
This British Airways deal was found by Cheapflights users on 6/29. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/107:30 pm
SFO
- FNC
1 stop31h 50m
British Airways
Tue 8/2512:20 pm
FNC
- SFO
1 stop33h 30m
British Airways
Deal found 6/29![British Airways logo]()
$916
This United Airlines deal was found by Cheapflights users on 7/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2711:39 pm
SFO
- OPO
1 stop23h 21m
United Airlines
Thu 10/86:00 am
OPO
- SFO
1 stop17h 20m
United Airlines
Deal found 7/1![United Airlines logo]()
$834
This Delta deal was found by Cheapflights users on 7/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/289:30 am
SFO
- OPO
2 stops21h 55m
Delta
Wed 10/75:00 am
OPO
- SFO
1 stop14h 45m
Delta
Deal found 7/1![Delta logo]()
$840
This KLM deal was found by Cheapflights users on 6/30. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/222:20 pm
SFO
- FAO
2 stops21h 10m
KLM
Mon 9/289:45 pm
FAO
- SFO
1 stop22h 00m
KLM
Deal found 6/30![KLM logo]()
$924
This TAP AIR PORTUGAL deal was found by Cheapflights users on 7/1. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/284:30 pm
SFO
- FAO
1 stop16h 50m
TAP AIR PORTUGAL
Mon 10/56:10 pm
FAO
- SFO
1 stop27h 25m
TAP AIR PORTUGAL
Deal found 7/1![TAP AIR PORTUGAL logo]()
$927
This FlightHub deal was found by Cheapflights users on 6/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1911:15 am
SFO
- FNC
2 stops38h 55m
British Airways
Mon 11/3012:25 pm
FNC
- SFO
2 stops39h 49m
British Airways
Deal found 6/28![British Airways logo]()
$938
This Mytrip deal was found by Cheapflights users on 6/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/104:30 pm
SFO
- FAO
2 stops23h 00m
Multiple Airlines
Wed 8/267:45 pm
FAO
- SFO
2 stops26h 45m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$940
This Delta deal was found by Cheapflights users on 7/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2610:35 pm
SFO
- OPO
1 stop27h 50m
Delta
Thu 10/85:55 am
OPO
- SFO
2 stops21h 53m
Delta
Deal found 7/1![Delta logo]()
$860
This United Airlines deal was found by Cheapflights users on 6/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1410:35 pm
SFO
- PDL
1 stop27h 05m
United Airlines
Wed 7/229:35 am
PDL
- SFO
1 stop33h 57m
United Airlines
Deal found 6/27![United Airlines logo]()
$888
This TAP AIR PORTUGAL deal was found by Cheapflights users on 7/1. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/294:20 pm
SFO
- FAO
1 stop23h 30m
TAP AIR PORTUGAL
Tue 10/66:05 am
FAO
- SFO
1 stop15h 30m
TAP AIR PORTUGAL
Deal found 7/1![TAP AIR PORTUGAL logo]()
$927
This Delta deal was found by Cheapflights users on 6/30. 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.
Thu 10/12:15 pm
SFO
- LIS
2 stops19h 35m
Delta
Tue 10/135:00 am
LIS
- SFO
2 stops22h 42m
Delta
Deal found 6/30![Delta logo]()
$870
This KLM deal was found by Cheapflights users on 6/29. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/262:00 pm
SFO
- FAO
2 stops21h 30m
KLM
Mon 9/79:45 pm
FAO
- SFO
1 stop22h 00m
KLM
Deal found 6/29![KLM logo]()
$966
This United Airlines deal was found by Cheapflights users on 6/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/258:20 am
SFO
- PDL
2 stops17h 20m
United Airlines
Tue 9/111:00 am
PDL
- SFO
2 stops16h 30m
United Airlines
Deal found 6/29![United Airlines logo]()
$895
This Delta deal was found by Cheapflights users on 7/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2510:31 am
SFO
- LIS
2 stops20h 09m
Delta
Sat 1/235:00 am
LIS
- SFO
2 stops22h 37m
Delta
Deal found 7/1![Delta logo]()
$876
This KLM deal was found by Cheapflights users on 6/27. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/72:21 pm
SFO
- FAO
2 stops19h 04m
KLM
Thu 9/178:20 pm
FAO
- SFO
1 stop23h 25m
KLM
Deal found 6/27![KLM logo]()
$966
This United Airlines deal was found by Cheapflights users on 6/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/248:20 am
SFO
- PDL
2 stops17h 20m
United Airlines
Wed 9/29:35 am
PDL
- SFO
1 stop17h 17m
United Airlines
Deal found 6/26![United Airlines logo]()
$903
This KLM deal was found by Cheapflights users on 6/30. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/141:45 pm
SFO
- FNC
1 stop35h 50m
KLM
Fri 9/257:25 pm
FNC
- SFO
1 stop24h 20m
KLM
Deal found 6/30![KLM logo]()
$971
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/28. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/234:30 pm
SFO
- TER
1 stop23h 45m
TAP AIR PORTUGAL
Sat 9/57:05 am
TER
- SFO
1 stop17h 30m
TAP AIR PORTUGAL
Deal found 6/28![TAP AIR PORTUGAL logo]()
$1,075
This United Airlines deal was found by Cheapflights users on 6/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/138:10 am
SFO
- PDL
2 stops17h 30m
United Airlines
Tue 7/2111:00 am
PDL
- SFO
2 stops18h 56m
United Airlines
Deal found 6/27![United Airlines logo]()
$906
This Delta deal was found by Cheapflights users on 6/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/217:00 am
SFO
- OPO
2 stops17h 30m
Delta
Thu 9/311:35 am
OPO
- SFO
2 stops20h 23m
Delta
Deal found 6/27![Delta logo]()
$910
This Justfly.com deal was found by Cheapflights users on 6/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/189:44 pm
SFO
- SJZ
2 stops31h 01m
Multiple Airlines
Mon 9/143:35 pm
SJZ
- SFO
2 stops24h 35m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$1,231
This KLM deal was found by Cheapflights users on 6/27. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/93:05 pm
SFO
- OPO
1 stop16h 25m
KLM
Sat 8/157:05 pm
OPO
- SFO
1 stop25h 45m
KLM
Deal found 6/27![KLM logo]()
$978
This United Airlines deal was found by Cheapflights users on 6/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/126:00 am
SFO
- PDL
2 stops19h 40m
United Airlines
Tue 7/2111:00 am
PDL
- SFO
2 stops17h 38m
United Airlines
Deal found 6/27![United Airlines logo]()
$906
This Ovago deal was found by Cheapflights users on 6/28. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/104:30 pm
SFO
- SJZ
2 stops35h 00m
Multiple Airlines
Mon 8/175:00 pm
SJZ
- SFO
2 stops52h 35m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$1,233
Last-minute flights from San Francisco to PortugalDiscover last-minute flight deals from San Francisco to Portugal. Data last updated July 1, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Portugal. Data last updated July 1, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 6/27. 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.
Tue 7/141:25 pm
SFO
- PDL
1 stop11h 55m
Multiple Airlines
Wed 7/229:35 am
PDL
- SFO
1 stop32h 10m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$878
This Gotogate deal was found by Cheapflights users on 6/27. 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.
Tue 7/288:10 am
SFO
- OPO
1 stop14h 50m
Multiple Airlines
Tue 8/2512:15 pm
OPO
- SFO
1 stop31h 06m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$823
This United Airlines deal was found by Cheapflights users on 6/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2811:38 pm
SFO
- OPO
1 stop23h 22m
United Airlines
Tue 8/2512:15 pm
OPO
- SFO
2 stops34h 37m
United Airlines
Deal found 6/27![United Airlines logo]()
$832
This Air France deal was found by Cheapflights users on 6/28. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/283:05 pm
SFO
- OPO
1 stop23h 00m
Multiple Airlines
Tue 8/184:20 pm
OPO
- SFO
1 stop27h 25m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$836
This FlightHub deal was found by Cheapflights users on 6/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/84:40 pm
SFO
- LIS
1 stop34h 25m
Air Canada
Thu 8/201:00 pm
LIS
- SFO
2 stops30h 21m
Air Canada
Deal found 6/30![Air Canada logo]()
$864
This Justfly.com deal was found by Cheapflights users on 7/1. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/128:10 am
SFO
- LIS
1 stop17h 10m
Multiple Airlines
Wed 8/1911:15 am
LIS
- SFO
1 stop37h 00m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$838
This Delta deal was found by Cheapflights users on 7/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/129:30 am
SFO
- LIS
2 stops21h 25m
Delta
Wed 8/195:00 am
LIS
- SFO
1 stop14h 45m
Delta
Deal found 7/1![Delta logo]()
$842
This Gotogate deal was found by Cheapflights users on 6/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/138:30 am
SFO
- LIS
2 stops16h 50m
Multiple Airlines
Wed 8/265:55 am
LIS
- SFO
1 stop18h 20m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$882
This CheapOair deal was found by Cheapflights users on 7/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/154:40 pm
SFO
- LIS
1 stop34h 25m
Multiple Airlines
Tue 8/255:05 am
LIS
- SFO
2 stops20h 18m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$851
This Booking.com deal was found by Cheapflights users on 6/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:20 pm
SFO
- LIS
1 stop31h 20m
TAP AIR PORTUGAL
Wed 8/269:40 am
LIS
- SFO
Nonstop12h 55m
TAP AIR PORTUGAL
Deal found 6/30![TAP AIR PORTUGAL logo]()
$879
This FlightHub deal was found by Cheapflights users on 6/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/224:45 pm
SFO
- LIS
2 stops21h 20m
Multiple Airlines
Fri 9/47:00 am
LIS
- SFO
1 stop15h 40m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$856
This Justfly.com deal was found by Cheapflights users on 6/29. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/224:45 pm
SFO
- LIS
2 stops21h 20m
Scandinavian Airlines
Sat 8/297:00 am
LIS
- SFO
2 stops23h 33m
Scandinavian Airlines
Deal found 6/29![Scandinavian Airlines logo]()
$878
One-way flights from San Francisco to PortugalSearch for one-way flight options from San Francisco to Portugal. Find affordable one-way fares based on user searches. Data last updated July 1, 2026.
Search for one-way flight options from San Francisco to Portugal. Find affordable one-way fares based on user searches. Data last updated July 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/30. 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.
Wed 8/265:35 pm
SFO
- FAO
3 stops44h 00m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$323
This Kiwi.com deal was found by Cheapflights users on 6/27. 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.
Sun 9/66:00 am
SFO
- PDL
3 stops44h 05m
WestJet
Deal found 6/27![WestJet logo]()
$325
This Trip.com deal was found by Cheapflights users on 6/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:00 am
SFO
- PDL
3 stops20h 05m
WestJet
Deal found 6/27![WestJet logo]()
$335
This Kiwi.com deal was found by Cheapflights users on 6/30. 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.
Tue 7/213:50 pm
SFO
- FAO
3 stops44h 30m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$337
This Kiwi.com deal was found by Cheapflights users on 6/30. 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.
Wed 8/265:35 pm
SFO
- OPO
3 stops43h 40m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 6/30. 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.
Mon 8/317:30 pm
SFO
- OPO
3 stops43h 40m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$358
This Kiwi.com deal was found by Cheapflights users on 7/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1410:48 pm
SFO
- OPO
3 stops35h 32m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$363
This Kiwi.com deal was found by Cheapflights users on 7/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/135:40 pm
SFO
- OPO
2 stops29h 30m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$370
This Kiwi.com deal was found by Cheapflights users on 7/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:35 pm
SFO
- OPO
3 stops41h 50m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$378
This Kiwi.com deal was found by Cheapflights users on 6/30. 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.
Mon 9/75:35 pm
SFO
- OPO
2 stops29h 15m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$384
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/53:02 pm
SFO
- OPO
3 stops43h 28m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$392
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/204:05 pm
SFO
- FAO
1 stop38h 15m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$398
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 July 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $624 (Cheapflightsfares) |
One-way from | $323 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $1,084 |
Good round-trip deal | $708 or less |
Good one-way deal | $536 or less |
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 July 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
Cheapest round-trip
San FranciscoPorto
SFO - OPO
SFOOPO
San Francisco
Tue 9/29
11:35 am-10:30 am
1 stop14h 55m
Porto
Mon 10/5
11:25 am-11:45 am
1 stop32h 20m
$777
Quickest round-trip
San FranciscoPonta Delgada
SFO - PDL
SFOPDL
San Francisco
Sun 8/16
6:15 am-8:40 am
2 stops19h 25m
Ponta Delgada Nordela
Tue 9/1
11:00 am-5:48 pm
1 stop13h 48m
$829
San FranciscoPorto
SFO - OPO
SFOOPO
San Francisco
Sun 9/27
11:39 pm-7:00 am
1 stop23h 21m
Porto
Thu 10/8
6:00 am-3:20 pm
1 stop17h 20m
$834
San FranciscoPorto
SFO - OPO
SFOOPO
San Francisco
Mon 9/28
9:30 am-3:25 pm
2 stops21h 55m
Porto
Wed 10/7
5:00 am-11:45 am
1 stop14h 45m
$840
San FranciscoPorto
SFO - OPO
SFOOPO
San Francisco
Mon 8/17
7:49 pm-6:15 am
2 stops26h 26m
Porto
Wed 9/2
11:20 am-12:07 am
2 stops20h 47m
$845
San FranciscoPorto
SFO - OPO
SFOOPO
San Francisco
Sat 9/26
10:35 pm-10:25 am
1 stop27h 50m
Porto
Thu 10/8
5:55 am-7:48 pm
2 stops21h 53m
$860
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Thu 10/1
2:15 pm-5:50 pm
2 stops19h 35m
Lisbon Humberto Delgado
Tue 10/13
5:00 am-7:42 pm
2 stops22h 42m
$870
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Sun 9/20
11:50 pm-10:05 pm
2 stops38h 15m
Lisbon Humberto Delgado
Wed 9/30
11:50 pm-12:22 am
2 stops32h 32m
$873
San FranciscoFaro
SFO - FAO
SFOFAO
San Francisco
Sat 8/15
7:35 pm-11:50 pm
1 stop20h 15m
Faro
Sun 8/30
6:10 pm-2:05 pm
1 stop27h 55m
$876
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Fri 12/25
10:31 am-2:40 pm
2 stops20h 09m
Lisbon Humberto Delgado
Sat 1/23
5:00 am-7:37 pm
2 stops22h 37m
$876
Showing 1-10 of 60 resultsSorted by cheapest first
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.
SFO-FAO
SFO-PDL
SFO-OPO
SFO-FNC
SFO-LIS
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
SFO-PT0
SFO-FAO
SFO-PDL
SFO-OPO
SFO-FNC
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 $409). Flying from San Francisco to Portugal in May is currently the most expensive (average of $3,649). 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 July 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 16% of weekly flights between San Francisco and Portugal have experienced delays in the past year, with the average delay time being 130 minutes.
What is the most punctual flight time for San Francisco to Portugal flights?
Historically, flights departing at night 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?
Wednesday 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 16% of flights being delayed.
How far ahead should I book a flight from San Francisco to Portugal?
The best time to book flights from San Francisco to Portugal is 58 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
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 July 1, 2026.
Read through reviews of airlines operating flights from San Francisco to Portugal, such as Delta,United Airlines, andTAP AIR PORTUGAL. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
7.8
Food
7.2
Crew
8.5
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Comfort
7.8
Food
7.2
Crew
8.5
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Comfort
7.8
Food
7.2
Crew
8.5
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Comfort
7.8
Food
7.2
Crew
8.5
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Comfort
7.8
Food
7.2
Crew
8.5
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Comfort
7.8
Food
7.2
Crew
8.5
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAaron,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.
Complete your trip
Complete your trip to Portugal by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from San Francisco to Portugal by cabin class
Find flights from San Francisco to Portugal, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Francisco and Portugal flights
Browse other San Francisco and Portugal flight options. Last updated on July 1, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
San Francisco to Portugal flights
Consider these flights traveling from San Francisco to Portugal.
Fly to Portugal regions
Consider these flights traveling to Portugal regions.
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 July 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$295 | Average$775 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$309 | Average$1,027 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$429 | Average$665 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$431 | Average$935 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$440 | Average$1,101 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$474 | Average$822 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$488 | Average$861 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$489 | Average$869 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$495 | Average$731 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$505 | Average$754 | FlexibilityNo cancel fee | On-time70% |