$376+ 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 8/3. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LIS
Jun 3 — Jun 101
Round-trip
1 adult, Economy
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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 May 4, 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 May 4, 2026.
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/254:40 pm
SFO
- LIS
1 stop15h 25m
Scandinavian Airlines
Tue 12/14:55 pm
LIS
- SFO
1 stop29h 40m
Scandinavian Airlines
Deal found 4/30![Scandinavian Airlines logo]()
$667
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/74:40 pm
SFO
- LIS
1 stop15h 25m
Scandinavian Airlines
Mon 11/234:55 pm
LIS
- SFO
1 stop29h 40m
Scandinavian Airlines
Deal found 4/30![Scandinavian Airlines logo]()
$675
This Super.com deal was found by Cheapflights users on 5/4. 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.
Sun 10/255:40 pm
SFO
- LIS
1 stop15h 25m
Scandinavian Airlines
Sun 11/14:55 pm
LIS
- SFO
1 stop29h 40m
Scandinavian Airlines
Deal found 5/4![Scandinavian Airlines logo]()
$676
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.
Sun 11/14:40 pm
SFO
- LIS
1 stop15h 25m
Scandinavian Airlines
Tue 11/174:55 pm
LIS
- SFO
1 stop29h 40m
Scandinavian Airlines
Deal found 4/30![Scandinavian Airlines logo]()
$677
This FlightHub deal was found by Cheapflights users on 5/3. 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 11/24:40 pm
SFO
- LIS
1 stop15h 25m
Scandinavian Airlines
Sun 11/154:55 pm
LIS
- SFO
1 stop29h 40m
Scandinavian Airlines
Deal found 5/3![Scandinavian Airlines logo]()
$682
This oojo deal was found by Cheapflights users on 5/4. 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 10/285:40 pm
SFO
- LIS
1 stop15h 25m
Multiple Airlines
Wed 11/47:05 am
LIS
- SFO
1 stop15h 30m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$697
This Scandinavian Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/24:40 pm
SFO
- LIS
1 stop15h 25m
Scandinavian Airlines
Tue 11/174:55 pm
LIS
- SFO
1 stop29h 40m
Scandinavian Airlines
Deal found 5/3![Scandinavian Airlines logo]()
$705
This Justfly.com deal was found by Cheapflights users on 5/2. 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 10/285:40 pm
SFO
- LIS
1 stop15h 25m
Scandinavian Airlines
Mon 11/164:55 pm
LIS
- SFO
1 stop29h 40m
Scandinavian Airlines
Deal found 5/2![Scandinavian Airlines logo]()
$709
This FlightHub deal was found by Cheapflights users on 5/3. 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 11/24:40 pm
SFO
- LIS
1 stop15h 25m
Scandinavian Airlines
Mon 11/164:55 pm
LIS
- SFO
1 stop29h 40m
Scandinavian Airlines
Deal found 5/3![Scandinavian Airlines logo]()
$712
This oojo deal was found by Cheapflights users on 5/1. 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.
Thu 10/154:45 pm
SFO
- LIS
1 stop32h 15m
Multiple Airlines
Sun 10/254:55 pm
LIS
- SFO
1 stop29h 40m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$727
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:00 am
SFO
- LIS
2 stops25h 05m
Scandinavian Airlines
Sun 11/224:55 pm
LIS
- SFO
1 stop29h 40m
Scandinavian Airlines
Deal found 4/30![Scandinavian Airlines logo]()
$729
This FlightHub deal was found by Cheapflights users on 5/4. 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 9/86:45 pm
SFO
- OPO
1 stop36h 55m
Turkish Airlines
Wed 9/164:40 pm
OPO
- SFO
1 stop26h 10m
Turkish Airlines
Deal found 5/4![Turkish Airlines logo]()
$773
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 May 4, 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 May 4, 2026.
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:15 am
SFO
- OPO
2 stops16h 40m
United Airlines
Thu 9/246:00 am
OPO
- SFO
1 stop17h 20m
United Airlines
Deal found 4/29![United Airlines logo]()
$906
This Delta deal was found by Cheapflights users on 5/2. 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.
Sun 9/63:05 pm
SFO
- LIS
1 stop15h 50m
Delta
Fri 9/185:00 am
LIS
- SFO
1 stop14h 45m
Delta
Deal found 5/2![Delta logo]()
$908
This KLM deal was found by Cheapflights users on 5/3. 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 8/145:17 pm
SFO
- FAO
2 stops19h 48m
KLM
Mon 8/319:45 pm
FAO
- SFO
1 stop22h 00m
KLM
Deal found 5/3![KLM logo]()
$977
This TAP AIR PORTUGAL deal was found by Cheapflights users on 5/3. 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.
Sat 8/157:35 pm
SFO
- TER
1 stop34h 15m
TAP AIR PORTUGAL
Sat 9/57:05 am
TER
- SFO
1 stop17h 30m
TAP AIR PORTUGAL
Deal found 5/3![TAP AIR PORTUGAL logo]()
$1,015
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2410:51 am
SFO
- FNC
2 stops23h 44m
British Airways
Mon 9/146:55 pm
FNC
- SFO
1 stop26h 55m
British Airways
Deal found 4/29![British Airways logo]()
$1,023
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/56:00 am
SFO
- PDL
3 stops29h 50m
Multiple Airlines
Thu 9/106:15 pm
PDL
- SFO
2 stops34h 40m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$1,146
This Air Canada deal was found by Cheapflights users on 5/2. 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 9/2811:46 pm
SFO
- TER
2 stops30h 04m
Air Canada
Thu 10/11:50 pm
TER
- SFO
2 stops52h 27m
Air Canada
Deal found 5/2![Air Canada logo]()
$1,411
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/17:45 am
SFO
- FNC
2 stops45h 10m
Iberia
Mon 6/221:20 pm
FNC
- SFO
2 stops39h 37m
Iberia
Deal found 4/29![Iberia logo]()
$1,649
This United Airlines deal was found by Cheapflights users on 5/3. 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 9/78:10 am
SFO
- LIS
1 stop17h 10m
United Airlines
Thu 9/175:05 am
LIS
- SFO
1 stop15h 35m
United Airlines
Deal found 5/3![United Airlines logo]()
$906
This Delta deal was found by Cheapflights users on 5/2. 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 9/91:00 pm
SFO
- LIS
2 stops20h 50m
Delta
Mon 9/219:50 am
LIS
- SFO
1 stop35h 00m
Delta
Deal found 5/2![Delta logo]()
$932
This TAP AIR PORTUGAL 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 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 4/30![TAP AIR PORTUGAL logo]()
$1,015
This KLM deal was found by Cheapflights users on 5/3. 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 6/77:00 am
SFO
- OPO
1 stop19h 25m
KLM
Fri 6/195:00 am
OPO
- SFO
1 stop14h 45m
KLM
Deal found 5/3![KLM logo]()
$1,024
This United Airlines deal was found by Cheapflights users on 5/1. 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 7/124:20 pm
SFO
- OPO
1 stop33h 25m
United Airlines
Sat 8/811:20 am
OPO
- SFO
1 stop32h 01m
United Airlines
Deal found 5/1![United Airlines logo]()
$972
This Delta deal was found by Cheapflights users on 5/1. 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 9/122:20 pm
SFO
- LIS
2 stops19h 30m
Delta
Mon 9/215:00 am
LIS
- SFO
2 stops21h 48m
Delta
Deal found 5/1![Delta logo]()
$982
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/277:30 pm
SFO
- OPO
1 stop30h 55m
British Airways
Tue 6/308:55 pm
OPO
- SFO
1 stop24h 55m
British Airways
Deal found 4/29![British Airways logo]()
$1,081
This KLM deal was found by Cheapflights users on 5/4. 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 8/141:45 pm
SFO
- FAO
1 stop33h 40m
KLM
Sun 8/306:55 pm
FAO
- SFO
1 stop24h 50m
KLM
Deal found 5/4![KLM logo]()
$1,032
This United Airlines deal was found by Cheapflights users on 5/4. 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.
Wed 7/811:15 am
SFO
- FAO
1 stop14h 35m
United Airlines
Tue 7/1411:40 am
FAO
- SFO
2 stops27h 13m
United Airlines
Deal found 5/4![United Airlines logo]()
$974
This KAYAK deal was found by Cheapflights users on 5/1. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:00 am
SFO
- HOR
2 stops27h 00m
Multiple Airlines
Mon 9/141:40 pm
HOR
- SFO
2 stops26h 30m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$1,184
This Delta deal was found by Cheapflights users on 5/4. 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 9/410:45 pm
SFO
- LIS
1 stop25h 15m
Delta
Mon 9/149:50 am
LIS
- SFO
1 stop35h 00m
Delta
Deal found 5/4![Delta logo]()
$1,013
This TAP AIR PORTUGAL deal was found by Cheapflights users on 5/2. 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 8/314:30 pm
SFO
- PDL
1 stop24h 15m
TAP AIR PORTUGAL
Fri 9/47:40 pm
PDL
- SFO
1 stop28h 55m
TAP AIR PORTUGAL
Deal found 5/2![TAP AIR PORTUGAL logo]()
$1,148
This United Airlines deal was found by Cheapflights users on 5/1. 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.
Fri 9/1111:10 am
SFO
- LIS
1 stop14h 10m
United Airlines
Thu 9/245:05 am
LIS
- SFO
1 stop15h 35m
United Airlines
Deal found 5/1![United Airlines logo]()
$976
This KAYAK deal was found by Cheapflights users on 5/1. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/136:00 am
SFO
- PIX
2 stops24h 15m
Multiple Airlines
Tue 8/258:20 pm
PIX
- SFO
2 stops43h 51m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$1,205
This British Airways deal was found by Cheapflights users on 5/4. 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.
Wed 7/87:30 pm
SFO
- FAO
1 stop15h 35m
British Airways
Tue 7/143:40 pm
FAO
- SFO
1 stop30h 10m
British Airways
Deal found 5/4![British Airways logo]()
$1,236
This KLM deal was found by Cheapflights users on 5/2. 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 6/111:50 pm
SFO
- LIS
1 stop24h 10m
KLM
Fri 6/195:00 am
LIS
- SFO
1 stop14h 45m
KLM
Deal found 5/2![KLM logo]()
$1,130
This Delta deal was found by Cheapflights users on 5/3. 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 7/255:40 am
SFO
- LIS
2 stops21h 05m
Delta
Fri 8/710:00 am
LIS
- SFO
2 stops21h 54m
Delta
Deal found 5/3![Delta logo]()
$1,031
This United Airlines deal was found by Cheapflights users on 5/3. 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 8/211:05 pm
SFO
- LIS
1 stop27h 25m
United Airlines
Sat 8/1511:25 am
LIS
- SFO
1 stop31h 56m
United Airlines
Deal found 5/3![United Airlines logo]()
$980
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/256:05 pm
SFO
- PDL
3 stops31h 05m
Multiple Airlines
Thu 8/69:30 am
PDL
- SFO
3 stops31h 50m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$1,225
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/278:50 am
SFO
- OPO
1 stop17h 40m
Delta
Tue 6/235:00 am
OPO
- SFO
2 stops26h 58m
Delta
Deal found 4/29![Delta logo]()
$1,033
This United Airlines deal was found by Cheapflights users on 5/2. 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 9/711:10 am
SFO
- LIS
1 stop14h 10m
United Airlines
Sat 9/1911:25 am
LIS
- SFO
1 stop17h 22m
United Airlines
Deal found 5/2![United Airlines logo]()
$981
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/1411:57 pm
SFO
- FNC
2 stops33h 38m
KLM
Sun 6/216:40 pm
FNC
- SFO
1 stop25h 05m
KLM
Deal found 4/30![KLM logo]()
$1,210
Last-minute flights from San Francisco to PortugalDiscover last-minute flight deals from San Francisco to Portugal. Data last updated May 4, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Portugal. Data last updated May 4, 2026 and is based on user searches.
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.
Mon 5/412:55 pm
SFO
- OPO
1 stop18h 55m
Turkish Airlines
Tue 5/1910:40 am
OPO
- SFO
1 stop38h 00m
Turkish Airlines
Deal found 4/30![Turkish Airlines logo]()
$797
This Mytrip deal was found by Cheapflights users on 5/2. 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 5/44:30 pm
SFO
- OPO
3 stops32h 30m
Multiple Airlines
Wed 5/202:15 pm
OPO
- SFO
2 stops34h 20m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$802
This oojo deal was found by Cheapflights users on 5/1. 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.
Mon 5/46:45 pm
SFO
- LIS
1 stop31h 10m
Turkish Airlines
Mon 5/115:55 am
LIS
- SFO
1 stop36h 55m
Turkish Airlines
Deal found 5/1![Turkish Airlines logo]()
$847
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:35 pm
SFO
- LIS
1 stop35h 10m
Multiple Airlines
Sun 5/106:15 am
LIS
- SFO
2 stops24h 51m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$882
This Gotogate deal was found by Cheapflights users on 5/2. 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.
Mon 5/47:35 pm
SFO
- OPO
1 stop28h 20m
SWISS
Wed 5/2012:15 pm
OPO
- SFO
1 stop36h 00m
SWISS
Deal found 5/2![SWISS logo]()
$887
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.
Tue 5/56:45 pm
SFO
- LIS
1 stop31h 05m
Turkish Airlines
Tue 5/125:05 pm
LIS
- SFO
1 stop31h 35m
Turkish Airlines
Deal found 4/30![Turkish Airlines logo]()
$806
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.
Tue 5/56:45 pm
SFO
- LIS
1 stop36h 50m
Turkish Airlines
Tue 5/1910:55 am
LIS
- SFO
1 stop37h 45m
Turkish Airlines
Deal found 4/29![Turkish Airlines logo]()
$807
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/512:55 pm
SFO
- LIS
1 stop36h 55m
Turkish Airlines
Wed 5/134:45 pm
LIS
- SFO
1 stop26h 05m
Turkish Airlines
Deal found 4/30![Turkish Airlines logo]()
$832
This Rumbo deal was found by Cheapflights users on 5/4. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/77:55 pm
SFO
- LIS
Nonstop11h 15m
TAP AIR PORTUGAL
Thu 5/2112:00 pm
LIS
- SFO
Nonstop12h 35m
TAP AIR PORTUGAL
Deal found 5/4![TAP AIR PORTUGAL logo]()
$875
This BusinessClass deal was found by Cheapflights users on 5/3. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/114:45 pm
SFO
- LIS
1 stop15h 05m
Scandinavian Airlines
Fri 5/229:15 pm
LIS
- SFO
1 stop25h 25m
Scandinavian Airlines
Deal found 5/3![Scandinavian Airlines logo]()
$816
This oojo deal was found by Cheapflights users on 5/1. 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.
Mon 5/1112:55 pm
SFO
- LIS
1 stop37h 00m
Turkish Airlines
Tue 5/1910:55 am
LIS
- SFO
1 stop37h 45m
Turkish Airlines
Deal found 5/1![Turkish Airlines logo]()
$858
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/144:45 pm
SFO
- LIS
1 stop19h 40m
Scandinavian Airlines
Sat 5/2310:55 pm
LIS
- SFO
1 stop23h 45m
Scandinavian Airlines
Deal found 4/30![Scandinavian Airlines logo]()
$799
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 May 4, 2026.
Search for one-way flight options from San Francisco to Portugal. Find affordable one-way fares based on user searches. Data last updated May 4, 2026.
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/32:03 pm
SFO
- OPO
2 stops17h 57m
American Airlines
Deal found 4/29![American Airlines logo]()
$376
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/47:20 am
SFO
- FNC
2 stops45h 05m
Iberia
Deal found 4/30![Iberia logo]()
$393
This Trip.com deal was found by Cheapflights users on 5/2. 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 5/2![WestJet logo]()
$408
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/35:35 pm
SFO
- OPO
1 stop20h 10m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$410
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 7/285:55 pm
SFO
- OPO
1 stop28h 55m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$411
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/41:45 pm
SFO
- FNC
1 stop35h 30m
KLM
Deal found 4/30![KLM logo]()
$413
This French Bee deal was found by Cheapflights users on 5/1. 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 French Bee is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/154:05 pm
SFO
- OPO
1 stop21h 45m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$426
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 9/73:15 pm
SFO
- FAO
2 stops47h 50m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$429
This Kiwi.com deal was found by Cheapflights users on 5/1. 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.
Tue 9/159:05 pm
SFO
- OPO
2 stops18h 45m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$430
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:00 am
SFO
- PDL
2 stops17h 40m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$432
This American Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/148:27 am
SFO
- OPO
2 stops19h 18m
American Airlines
Deal found 5/3![American Airlines logo]()
$433
This American Airlines deal was found by Cheapflights users on 5/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/152:14 pm
SFO
- OPO
2 stops17h 46m
American Airlines
Deal found 5/1![American Airlines logo]()
$436
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 May 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $676 (Super.com) |
One-way from | $376 (American Airlines) |
Popular in | June |
Cheapest in | February |
Average price | $941 |
Good round-trip deal | $771 or less |
Good one-way deal | $495 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 May 4, 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
Mon 9/14
6:15 am-6:55 am
2 stops16h 40m
Porto
Thu 9/24
6:00 am-3:20 pm
1 stop17h 20m
$906
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Mon 9/7
8:10 am-9:20 am
1 stop17h 10m
Lisbon Humberto Delgado
Thu 9/17
5:05 am-12:40 pm
1 stop15h 35m
$906
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Sun 9/6
3:05 pm-2:55 pm
1 stop15h 50m
Lisbon Humberto Delgado
Fri 9/18
5:00 am-11:45 am
1 stop14h 45m
$908
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Wed 9/9
1:00 pm-5:50 pm
2 stops20h 50m
Lisbon Humberto Delgado
Mon 9/21
9:50 am-12:50 pm
1 stop35h 00m
$932
San FranciscoPorto
SFO - OPO
SFOOPO
San Francisco
Sun 7/12
4:20 pm-9:45 am
1 stop33h 25m
Porto
Sat 8/8
11:20 am-11:21 am
1 stop32h 01m
$972
San FranciscoFaro
SFO - FAO
SFOFAO
San Francisco
Wed 7/8
11:15 am-9:50 am
1 stop14h 35m
Faro
Tue 7/14
11:40 am-6:53 am
2 stops27h 13m
$974
Quickest round-trip
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Fri 9/11
11:10 am-9:20 am
1 stop14h 10m
Lisbon Humberto Delgado
Thu 9/24
5:05 am-12:40 pm
1 stop15h 35m
$976
San FranciscoFaro
SFO - FAO
SFOFAO
San Francisco
Fri 8/14
5:17 pm-9:05 pm
2 stops19h 48m
Faro
Mon 8/31
9:45 pm-11:45 am
1 stop22h 00m
$977
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Sun 8/2
11:05 pm-10:30 am
1 stop27h 25m
Lisbon Humberto Delgado
Sat 8/15
11:25 am-11:21 am
1 stop31h 56m
$980
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Mon 9/7
11:10 am-9:20 am
1 stop14h 10m
Lisbon Humberto Delgado
Sat 9/19
11:25 am-8:47 pm
1 stop17h 22m
$981
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-OPO
SFO-LIS
SFO-FAO
SFO-TER
SFO-FNC
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-OPO
SFO-LIS
SFO-FAO
SFO-TER
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 12 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.
What is the cheapest month to book a flight from San Francisco to Portugal?
Currently, August is the cheapest month in which you can book a flight from San Francisco to Portugal (average of $324). Flying from San Francisco to Portugal in May is currently the most expensive (average of $2,617). 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 4, 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 19% of weekly flights between San Francisco and Portugal have experienced delays in the past year, with the average delay time being 115 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?
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 19% 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 May 4, 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.
Comfort
7.9
Boarding
8.1
Overall
7.9
Food
7.2
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Boarding
8.1
Overall
7.9
Food
7.2
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Boarding
8.1
Overall
7.9
Food
7.2
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Boarding
8.1
Overall
7.9
Food
7.2
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Boarding
8.1
Overall
7.9
Food
7.2
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Boarding
8.1
Overall
7.9
Food
7.2
Entertainment
7.8
Crew
8.5
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 May 4, 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 May 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$224 | Average$775 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$309 | Average$986 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$429 | Average$655 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$431 | Average$894 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$440 | Average$1,072 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$474 | Average$865 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$488 | Average$841 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$489 | Average$826 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$495 | Average$730 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$505 | Average$754 | FlexibilityNo cancel fee | On-time70% |