$252+ Cheap flights from San Francisco (SFO) to Portugal
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/19. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LIS
Mar 20 — Mar 271
1 adult, Economy
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Find cheap flights from San Francisco to Portugal with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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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 February 18, 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 February 18, 2026.
This Delta deal was found by Cheapflights users on 2/17. 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 3/22:05 pm
SFO
- LIS
2 stops19h 25m
Delta
Wed 3/115:00 am
LIS
- SFO
2 stops18h 03m
Delta
Deal found 2/17![Delta logo]()
$507
This Finnair deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:45 pm
SFO
- LIS
1 stop21h 40m
Finnair
Fri 5/86:35 am
LIS
- SFO
2 stops25h 54m
Finnair
Deal found 2/17![Finnair logo]()
$508
This Delta deal was found by Cheapflights users on 2/17. 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 3/82:55 pm
SFO
- LIS
1 stop16h 40m
Delta
Wed 3/185:00 am
LIS
- SFO
2 stops20h 44m
Delta
Deal found 2/17![Delta logo]()
$509
This Finnair deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/288:15 am
SFO
- LIS
2 stops24h 10m
Finnair
Mon 11/164:10 pm
LIS
- SFO
2 stops34h 59m
Finnair
Deal found 2/17![Finnair logo]()
$510
This Delta deal was found by Cheapflights users on 2/16. 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 4/281:10 pm
SFO
- LIS
2 stops21h 35m
Delta
Thu 5/75:00 am
LIS
- SFO
2 stops22h 35m
Delta
Deal found 2/16![Delta logo]()
$511
This United Airlines deal was found by Cheapflights users on 2/14. 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 2/258:30 am
SFO
- LIS
1 stop15h 40m
United Airlines
Thu 3/1911:55 am
LIS
- SFO
1 stop20h 33m
United Airlines
Deal found 2/14![United Airlines logo]()
$512
This Finnair deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/131:28 pm
SFO
- LIS
2 stops25h 57m
Finnair
Wed 4/226:35 am
LIS
- SFO
2 stops25h 24m
Finnair
Deal found 2/17![Finnair logo]()
$513
This BusinessClass deal was found by Cheapflights users on 2/17. 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.
Sun 3/82:55 pm
SFO
- LIS
1 stop36h 40m
Scandinavian Airlines
Wed 3/185:30 am
LIS
- SFO
2 stops24h 30m
Scandinavian Airlines
Deal found 2/17![Scandinavian Airlines logo]()
$514
This United Airlines deal was found by Cheapflights users on 2/17. 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 3/19:20 pm
SFO
- LIS
2 stops26h 50m
United Airlines
Tue 3/105:00 am
LIS
- SFO
2 stops23h 48m
United Airlines
Deal found 2/17![United Airlines logo]()
$515
This United Airlines deal was found by Cheapflights users on 2/17. 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 2/228:30 am
SFO
- LIS
1 stop16h 50m
United Airlines
Wed 3/1110:15 am
LIS
- SFO
1 stop18h 33m
United Airlines
Deal found 2/17![United Airlines logo]()
$516
This United Airlines deal was found by Cheapflights users on 2/17. 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 2/2312:55 pm
SFO
- LIS
1 stop13h 20m
United Airlines
Fri 3/1310:15 am
LIS
- SFO
2 stops22h 13m
United Airlines
Deal found 2/17![United Airlines logo]()
$517
This United Airlines deal was found by Cheapflights users on 2/17. 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.
Sat 2/2811:20 pm
SFO
- LIS
1 stop26h 55m
United Airlines
Tue 3/1010:15 am
LIS
- SFO
1 stop16h 47m
United Airlines
Deal found 2/17![United Airlines logo]()
$518
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 February 18, 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 February 18, 2026.
This Delta deal was found by Cheapflights users on 2/16. 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 4/131:45 pm
SFO
- LIS
1 stop16h 50m
Delta
Fri 4/2410:00 am
LIS
- SFO
1 stop23h 23m
Delta
Deal found 2/16![Delta logo]()
$517
This KLM deal was found by Cheapflights users on 2/17. 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 3/162:55 pm
SFO
- LIS
1 stop25h 15m
Multiple Airlines
Tue 3/316:50 pm
LIS
- SFO
1 stop31h 10m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$518
This British Airways deal was found by Cheapflights users on 2/15. 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.
Tue 3/106:30 pm
SFO
- FNC
1 stop33h 40m
British Airways
Thu 3/1912:00 pm
FNC
- SFO
1 stop35h 00m
British Airways
Deal found 2/15![British Airways logo]()
$544
This KLM deal was found by Cheapflights users on 2/17. 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 8/171:45 pm
SFO
- LIS
1 stop25h 05m
KLM
Tue 8/257:45 pm
LIS
- SFO
1 stop24h 00m
KLM
Deal found 2/17![KLM logo]()
$567
This United Airlines deal was found by Cheapflights users on 2/14. 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 8/176:00 am
SFO
- LIS
2 stops19h 20m
United Airlines
Wed 9/211:25 am
LIS
- SFO
1 stop17h 26m
United Airlines
Deal found 2/14![United Airlines logo]()
$579
This oojo deal was found by Cheapflights users on 2/15. 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 3/24:35 pm
SFO
- PDL
1 stop24h 10m
TAP AIR PORTUGAL
Fri 3/137:25 pm
PDL
- SFO
1 stop26h 20m
TAP AIR PORTUGAL
Deal found 2/15![TAP AIR PORTUGAL logo]()
$631
This Scandinavian Airlines deal was found by Cheapflights users on 2/17. 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.
Thu 4/24:45 pm
SFO
- OPO
1 stop16h 20m
Scandinavian Airlines
Sun 4/126:20 pm
OPO
- SFO
2 stops38h 07m
Scandinavian Airlines
Deal found 2/17![Scandinavian Airlines logo]()
$632
This American Airlines deal was found by Cheapflights users on 2/17. 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.
Wed 4/297:05 am
SFO
- FAO
2 stops21h 00m
American Airlines
Wed 5/208:00 pm
FAO
- SFO
2 stops31h 21m
American Airlines
Deal found 2/17![American Airlines logo]()
$663
This oojo deal was found by Cheapflights users on 2/16. 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 4/226:45 pm
SFO
- OPO
1 stop31h 00m
Turkish Airlines
Mon 5/44:40 pm
OPO
- SFO
1 stop26h 10m
Turkish Airlines
Deal found 2/16![Turkish Airlines logo]()
$704
This Air Canada deal was found by Cheapflights users on 2/14. 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.
Tue 8/118:35 am
SFO
- PDL
1 stop16h 45m
Air Canada
Fri 8/219:35 am
PDL
- SFO
2 stops35h 00m
Air Canada
Deal found 2/14![Air Canada logo]()
$746
This Delta deal was found by Cheapflights users on 2/17. 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 5/511:00 am
SFO
- LIS
2 stops19h 55m
Delta
Tue 5/195:35 am
LIS
- SFO
1 stop20h 25m
Delta
Deal found 2/17![Delta logo]()
$538
This British Airways deal was found by Cheapflights users on 2/15. 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 3/99:40 pm
SFO
- FNC
1 stop34h 30m
British Airways
Wed 3/184:00 pm
FNC
- SFO
1 stop31h 00m
British Airways
Deal found 2/15![British Airways logo]()
$544
This Finnair deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/114:35 pm
SFO
- LIS
1 stop22h 35m
Multiple Airlines
Thu 5/216:35 am
LIS
- SFO
2 stops25h 12m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$568
This United Airlines deal was found by Cheapflights users on 2/14. 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 8/178:10 am
SFO
- LIS
1 stop17h 10m
United Airlines
Fri 8/2812:20 pm
LIS
- SFO
1 stop20h 56m
United Airlines
Deal found 2/14![United Airlines logo]()
$581
This British Airways deal was found by Cheapflights users on 2/15. 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.
Tue 3/109:40 pm
SFO
- FNC
1 stop30h 30m
British Airways
Tue 3/173:05 pm
FNC
- SFO
1 stop35h 40m
British Airways
Deal found 2/15![British Airways logo]()
$544
This Delta deal was found by Cheapflights users on 2/14. 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 4/257:05 am
SFO
- LIS
1 stop19h 40m
Delta
Sat 5/25:35 am
LIS
- SFO
1 stop20h 25m
Delta
Deal found 2/14![Delta logo]()
$544
This KLM deal was found by Cheapflights users on 2/17. 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 4/281:10 pm
SFO
- FAO
2 stops19h 40m
KLM
Mon 5/119:45 pm
FAO
- SFO
1 stop22h 00m
KLM
Deal found 2/17![KLM logo]()
$644
This Trip.com deal was found by Cheapflights users on 2/17. 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 3/235:40 pm
SFO
- OPO
1 stop32h 55m
Scandinavian Airlines
Wed 4/811:50 am
OPO
- SFO
1 stop34h 50m
Scandinavian Airlines
Deal found 2/17![Scandinavian Airlines logo]()
$654
This Delta deal was found by Cheapflights users on 2/14. 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 8/41:45 pm
SFO
- LIS
1 stop21h 00m
Delta
Tue 8/1811:55 am
LIS
- SFO
1 stop31h 50m
Delta
Deal found 2/14![Delta logo]()
$567
This British Airways deal was found by Cheapflights users on 2/15. 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 3/239:40 pm
SFO
- FNC
1 stop34h 30m
British Airways
Wed 4/812:00 pm
FNC
- SFO
1 stop37h 40m
British Airways
Deal found 2/15![British Airways logo]()
$579
This Kiwi.com deal was found by Cheapflights users on 2/14. 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 8/124:35 pm
SFO
- PDL
1 stop19h 15m
TAP AIR PORTUGAL
Wed 8/267:30 pm
PDL
- SFO
1 stop26h 00m
TAP AIR PORTUGAL
Deal found 2/14![TAP AIR PORTUGAL logo]()
$712
This Air Canada deal was found by Cheapflights users on 2/14. 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.
Tue 8/118:35 am
SFO
- PDL
1 stop16h 45m
Air Canada
Wed 8/269:35 am
PDL
- SFO
2 stops35h 00m
Air Canada
Deal found 2/14![Air Canada logo]()
$746
This Delta deal was found by Cheapflights users on 2/14. 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 8/31:45 pm
SFO
- LIS
1 stop16h 50m
Delta
Tue 8/1811:55 am
LIS
- SFO
1 stop31h 50m
Delta
Deal found 2/14![Delta logo]()
$567
This KLM deal was found by Cheapflights users on 2/14. 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 5/21:45 pm
SFO
- FAO
1 stop21h 25m
KLM
Mon 5/119:45 pm
FAO
- SFO
1 stop22h 00m
KLM
Deal found 2/14![KLM logo]()
$690
This Priceline deal was found by Cheapflights users on 2/18. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/239:40 pm
SFO
- FNC
1 stop34h 30m
British Airways
Tue 4/147:35 pm
FNC
- SFO
2 stops30h 04m
British Airways
Deal found 2/18![British Airways logo]()
$582
This Mytrip deal was found by Cheapflights users on 2/17. 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 3/238:25 am
SFO
- OPO
3 stops31h 35m
Multiple Airlines
Wed 4/87:15 am
OPO
- SFO
2 stops22h 15m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$720
This oojo deal was found by Cheapflights users on 2/14. 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 8/47:20 pm
SFO
- TER
Nonstop9h 50m
TAP AIR PORTUGAL
Tue 9/81:40 pm
TER
- SFO
1 stop31h 55m
TAP AIR PORTUGAL
Deal found 2/14![TAP AIR PORTUGAL logo]()
$723
This Air Canada deal was found by Cheapflights users on 2/14. 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.
Sun 8/167:35 pm
SFO
- PDL
2 stops53h 45m
Air Canada
Wed 8/269:35 am
PDL
- SFO
2 stops35h 00m
Air Canada
Deal found 2/14![Air Canada logo]()
$746
This United Airlines deal was found by Cheapflights users on 2/14. 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 8/111:40 pm
SFO
- PDL
1 stop11h 40m
United Airlines
Wed 8/269:35 am
PDL
- SFO
1 stop18h 27m
United Airlines
Deal found 2/14![United Airlines logo]()
$759
This Kiwi.com deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/114:45 pm
SFO
- OPO
1 stop16h 55m
Scandinavian Airlines
Sat 4/189:30 am
OPO
- SFO
1 stop37h 10m
Scandinavian Airlines
Deal found 2/16![Scandinavian Airlines logo]()
$765
Last-minute flights from San Francisco to PortugalDiscover last-minute flight deals from San Francisco to Portugal. Data last updated February 18, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Portugal. Data last updated February 18, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 2/17. 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 2/228:30 am
SFO
- LIS
1 stop16h 50m
United Airlines
Wed 3/1110:15 am
LIS
- SFO
1 stop18h 33m
United Airlines
Deal found 2/17![United Airlines logo]()
$516
This United Airlines deal was found by Cheapflights users on 2/17. 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 2/2312:55 pm
SFO
- LIS
1 stop13h 20m
United Airlines
Fri 3/1310:15 am
LIS
- SFO
2 stops22h 13m
United Airlines
Deal found 2/17![United Airlines logo]()
$517
This Delta deal was found by Cheapflights users on 2/17. 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 2/253:40 pm
SFO
- LIS
1 stop17h 50m
Delta
Fri 3/135:30 am
LIS
- SFO
2 stops24h 30m
Delta
Deal found 2/17![Delta logo]()
$508
This United Airlines deal was found by Cheapflights users on 2/17. 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 2/2511:20 am
SFO
- LIS
1 stop14h 55m
United Airlines
Wed 3/411:55 am
LIS
- SFO
1 stop17h 27m
United Airlines
Deal found 2/17![United Airlines logo]()
$512
This Delta deal was found by Cheapflights users on 2/17. 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 2/258:00 am
SFO
- LIS
2 stops16h 00m
Delta
Tue 3/105:30 am
LIS
- SFO
2 stops21h 30m
Delta
Deal found 2/17![Delta logo]()
$513
This United Airlines deal was found by Cheapflights users on 2/17. 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.
Sat 2/2811:20 pm
SFO
- LIS
1 stop26h 55m
United Airlines
Tue 3/1010:15 am
LIS
- SFO
1 stop16h 47m
United Airlines
Deal found 2/17![United Airlines logo]()
$518
This FlightHub deal was found by Cheapflights users on 2/17. 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.
Sun 3/14:40 pm
SFO
- LIS
1 stop15h 50m
Scandinavian Airlines
Wed 3/44:55 pm
LIS
- SFO
1 stop29h 40m
Scandinavian Airlines
Deal found 2/17![Scandinavian Airlines logo]()
$510
This United Airlines deal was found by Cheapflights users on 2/17. 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 3/19:20 pm
SFO
- LIS
2 stops26h 50m
United Airlines
Tue 3/105:00 am
LIS
- SFO
2 stops23h 48m
United Airlines
Deal found 2/17![United Airlines logo]()
$515
This Delta deal was found by Cheapflights users on 2/17. 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 3/22:05 pm
SFO
- LIS
2 stops19h 25m
Delta
Wed 3/115:00 am
LIS
- SFO
2 stops18h 03m
Delta
Deal found 2/17![Delta logo]()
$507
This KAYAK deal was found by Cheapflights users on 2/14. 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 3/74:40 pm
SFO
- LIS
1 stop16h 30m
Scandinavian Airlines
Sun 3/226:00 pm
LIS
- SFO
1 stop28h 35m
Scandinavian Airlines
Deal found 2/14![Scandinavian Airlines logo]()
$519
This Delta deal was found by Cheapflights users on 2/17. 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 3/82:55 pm
SFO
- LIS
1 stop16h 40m
Delta
Wed 3/185:00 am
LIS
- SFO
2 stops20h 44m
Delta
Deal found 2/17![Delta logo]()
$509
This BusinessClass deal was found by Cheapflights users on 2/17. 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.
Sun 3/82:55 pm
SFO
- LIS
1 stop36h 40m
Scandinavian Airlines
Wed 3/185:30 am
LIS
- SFO
2 stops24h 30m
Scandinavian Airlines
Deal found 2/17![Scandinavian Airlines logo]()
$514
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 February 18, 2026.
Search for one-way flight options from San Francisco to Portugal. Find affordable one-way fares based on user searches. Data last updated February 18, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 2/14. 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.
Sun 7/197:30 pm
SFO
- LIS
1 stop19h 35m
British Airways
Deal found 2/14![British Airways logo]()
$252
This Cheapflightsfares deal was found by Cheapflights users on 2/15. 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.
Wed 8/124:35 pm
SFO
- LIS
1 stop17h 20m
British Airways
Deal found 2/15![British Airways logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 2/15. 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 4/197:40 pm
SFO
- OPO
1 stop28h 20m
Multiple Airlines
Deal found 2/15![Multiple Airlines logo]()
$255
This oojo deal was found by Cheapflights users on 2/15. 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 8/34:35 pm
SFO
- LIS
1 stop22h 35m
British Airways
Deal found 2/15![British Airways logo]()
$256
This Cheapflightsfares deal was found by Cheapflights users on 2/15. 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.
Sun 8/26:01 am
SFO
- LIS
1 stop19h 04m
British Airways
Deal found 2/15![British Airways logo]()
$259
This United Airlines deal was found by Cheapflights users on 2/14. 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 7/288:10 am
SFO
- LIS
1 stop17h 10m
United Airlines
Deal found 2/14![United Airlines logo]()
$263
This United Airlines deal was found by Cheapflights users on 2/16. 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 7/2012:50 am
SFO
- LIS
2 stops25h 40m
United Airlines
Deal found 2/16![United Airlines logo]()
$264
This Kiwi.com deal was found by Cheapflights users on 2/15. 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 4/147:40 pm
SFO
- LIS
1 stop16h 55m
Multiple Airlines
Deal found 2/15![Multiple Airlines logo]()
$265
This Kiwi.com deal was found by Cheapflights users on 2/14. 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 5/107:40 pm
SFO
- LIS
1 stop38h 45m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$268
This Expedia deal was found by Cheapflights users on 2/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/221:59 pm
SFO
- LIS
2 stops18h 06m
Iberia
Deal found 2/16![Iberia logo]()
$273
This TravelUp deal was found by Cheapflights users on 2/16. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/252:20 pm
SFO
- LIS
1 stop36h 10m
Lufthansa
Deal found 2/16![Lufthansa logo]()
$274
This Kiwi.com deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1810:38 pm
SFO
- OPO
3 stops48h 32m
Multiple Airlines
Deal found 2/15![Multiple Airlines logo]()
$295
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 February 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $486 (oojo) |
One-way from | $252 (Cheapflightsfares) |
Popular in | June |
Cheapest in | January |
Average price | $625 |
Good round-trip deal | $552 or less |
Good one-way deal | $418 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 February 18, 2026.
Use the filters below to find and compare flights from San Francisco to Portugal that are best for you.
Fly from
San Francisco
Fly to
Portugal
Route
Depart
Return
Price
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Mon 4/13
1:45 pm-2:35 pm
1 stop16h 50m
Lisbon Humberto Delgado
Fri 4/24
10:00 am-1:23 am
1 stop23h 23m
$517
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Mon 3/16
2:55 pm-11:10 pm
1 stop25h 15m
Lisbon Humberto Delgado
Tue 3/31
6:50 pm-6:00 pm
1 stop31h 10m
$518
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Tue 5/5
11:00 am-2:55 pm
2 stops19h 55m
Lisbon Humberto Delgado
Tue 5/19
5:35 am-6:00 pm
1 stop20h 25m
$538
San FranciscoFunchal
SFO - FNC
SFOFNC
San Francisco
Tue 3/10
6:30 pm-11:10 am
1 stop33h 40m
Funchal Madeira
Thu 3/19
12:00 pm-4:00 pm
1 stop35h 00m
$544
San FranciscoFunchal
SFO - FNC
SFOFNC
San Francisco
Mon 3/9
9:40 pm-3:10 pm
1 stop34h 30m
Funchal Madeira
Wed 3/18
4:00 pm-4:00 pm
1 stop31h 00m
$544
San FranciscoFunchal
SFO - FNC
SFOFNC
San Francisco
Tue 3/10
9:40 pm-11:10 am
1 stop30h 30m
Funchal Madeira
Tue 3/17
3:05 pm-7:45 pm
1 stop35h 40m
$544
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Sat 4/25
7:05 am-10:45 am
1 stop19h 40m
Lisbon Humberto Delgado
Sat 5/2
5:35 am-6:00 pm
1 stop20h 25m
$544
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Mon 8/17
1:45 pm-10:50 pm
1 stop25h 05m
Lisbon Humberto Delgado
Tue 8/25
7:45 pm-11:45 am
1 stop24h 00m
$567
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Tue 8/4
1:45 pm-6:45 pm
1 stop21h 00m
Lisbon Humberto Delgado
Tue 8/18
11:55 am-11:45 am
1 stop31h 50m
$567
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Mon 8/3
1:45 pm-2:35 pm
1 stop16h 50m
Lisbon Humberto Delgado
Tue 8/18
11:55 am-11:45 am
1 stop31h 50m
$567
Showing 1-10 of 60 results
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-LIS
SFO-OPO
SFO-PDL
SFO-FNC
SFO-PIX
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-LIS
SFO-OPO
SFO-PDL
SFO-FNC
What is the cheapest month to book a flight from San Francisco to Portugal?
Currently, April is the cheapest month in which you can book a flight from San Francisco to Portugal (average of $431). Flying from San Francisco to Portugal in July is currently the most expensive (average of $685). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SFO to PT?
Find hourly flight availability from San Francisco to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 18, 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 120 minutes.
What is the most punctual flight time for San Francisco to Portugal flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Monday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on San Francisco to Portugal flights?
Over the last year, TAP AIR PORTUGAL have had the lowest number of delays on this route, with just 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 February 18, 2026.
Read through reviews of airlines operating flights from San Francisco to Portugal, such as Delta, United Airlines, and Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.9
Food
7.2
Overall
7.9
Entertainment
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Food
7.2
Overall
7.9
Entertainment
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Food
7.2
Overall
7.9
Entertainment
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Food
7.2
Overall
7.9
Entertainment
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Food
7.2
Overall
7.9
Entertainment
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Food
7.2
Overall
7.9
Entertainment
7.8
Boarding
8.1
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 February 18, 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 February 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$291 | Average$707 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$309 | Average$908 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$409 | Average$652 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$431 | Average$893 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$488 | Average$1,063 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$489 | Average$723 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$495 | Average$721 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$510 | Average$744 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$511 | Average$1,082 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$518 | Average$885 | FlexibilityNo cancel fee | On-time79% |