$313+ 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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LIS
Mar 31 — Apr 71
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 March 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 March 1, 2026.
This United Airlines deal was found by Cheapflights users on 2/28. 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.
Tue 12/18:25 am
SFO
- LIS
1 stop16h 55m
United Airlines
Tue 12/155:00 am
LIS
- SFO
1 stop18h 55m
United Airlines
Deal found 2/28![United Airlines logo]()
$509
This Kiwi.com deal was found by Cheapflights users on 2/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/248:20 pm
SFO
- LIS
Nonstop11h 15m
TAP AIR PORTUGAL
Tue 5/510:00 am
LIS
- SFO
Nonstop12h 35m
TAP AIR PORTUGAL
Deal found 2/26![TAP AIR PORTUGAL logo]()
$510
This Kiwi.com deal was found by Cheapflights users on 2/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/144:35 pm
SFO
- LIS
Nonstop11h 15m
TAP AIR PORTUGAL
Thu 4/3012:00 pm
LIS
- SFO
Nonstop12h 35m
TAP AIR PORTUGAL
Deal found 2/26![TAP AIR PORTUGAL logo]()
$511
This Delta deal was found by Cheapflights users on 2/27. 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.
Sun 3/17:10 am
SFO
- LIS
1 stop16h 50m
Delta
Wed 3/1111:25 am
LIS
- SFO
1 stop32h 25m
Delta
Deal found 2/27![Delta logo]()
$512
This United Airlines deal was found by Cheapflights users on 2/28. 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.
Mon 11/301:30 pm
SFO
- LIS
1 stop15h 50m
United Airlines
Thu 12/175:00 am
LIS
- SFO
1 stop15h 40m
United Airlines
Deal found 2/28![United Airlines logo]()
$513
This United Airlines deal was found by Cheapflights users on 2/28. 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.
Wed 12/25:00 am
SFO
- LIS
2 stops19h 10m
United Airlines
Wed 12/165:00 am
LIS
- SFO
1 stop15h 40m
United Airlines
Deal found 2/28![United Airlines logo]()
$514
This British Airways deal was found by Cheapflights users on 2/26. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/144:35 pm
SFO
- LIS
1 stop22h 25m
British Airways
Tue 4/286:45 pm
LIS
- SFO
1 stop27h 05m
British Airways
Deal found 2/26![British Airways logo]()
$515
This FlightHub deal was found by Cheapflights users on 2/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/105:40 pm
SFO
- LIS
1 stop15h 25m
Scandinavian Airlines
Sun 3/156:00 pm
LIS
- SFO
1 stop28h 35m
Scandinavian Airlines
Deal found 2/27![Scandinavian Airlines logo]()
$516
This Iberia deal was found by Cheapflights users on 2/27. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/87:30 pm
SFO
- LIS
1 stop19h 45m
Multiple Airlines
Wed 4/2212:30 pm
LIS
- SFO
2 stops19h 29m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$518
This United Airlines deal was found by Cheapflights users on 2/28. 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.
Tue 12/15:20 am
SFO
- LIS
2 stops20h 55m
United Airlines
Fri 12/185:00 am
LIS
- SFO
1 stop15h 40m
United Airlines
Deal found 2/28![United Airlines logo]()
$520
This FlightHub deal was found by Cheapflights users on 2/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/264:45 pm
SFO
- FAO
1 stop32h 55m
Scandinavian Airlines
Sat 5/26:45 pm
FAO
- SFO
1 stop27h 55m
Scandinavian Airlines
Deal found 2/26![Scandinavian Airlines logo]()
$520
This American Airlines deal was found by Cheapflights users on 3/1. 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.
Tue 4/1412:30 am
SFO
- FNC
2 stops27h 55m
Multiple Airlines
Wed 4/221:35 pm
FNC
- SFO
1 stop34h 35m
Multiple Airlines
Deal found 3/1![Multiple Airlines logo]()
$535
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 March 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 March 1, 2026.
This British Airways deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:30 pm
SFO
- LIS
1 stop19h 30m
British Airways
Mon 4/206:45 pm
LIS
- SFO
1 stop27h 05m
British Airways
Deal found 2/25![British Airways logo]()
$515
This Delta deal was found by Cheapflights users on 3/1. 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 4/212:57 pm
SFO
- LIS
2 stops18h 53m
Delta
Tue 4/285:00 am
LIS
- SFO
2 stops18h 21m
Delta
Deal found 3/1![Delta logo]()
$526
This Finnair deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/165:45 pm
SFO
- LIS
1 stop21h 40m
Finnair
Thu 4/236:35 am
LIS
- SFO
2 stops25h 24m
Finnair
Deal found 2/25![Finnair logo]()
$531
This KLM deal was found by Cheapflights users on 2/27. 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.
Tue 5/51:45 pm
SFO
- LIS
1 stop16h 50m
KLM
Wed 5/135:00 am
LIS
- SFO
1 stop14h 45m
KLM
Deal found 2/27![KLM logo]()
$551
This oojo deal was found by Cheapflights users on 2/28. 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.
Tue 4/74:35 pm
SFO
- PDL
1 stop24h 10m
TAP AIR PORTUGAL
Thu 4/167:40 pm
PDL
- SFO
1 stop28h 10m
TAP AIR PORTUGAL
Deal found 2/28![TAP AIR PORTUGAL logo]()
$631
This LEVEL deal was found by Cheapflights users on 2/26. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/267:40 pm
SFO
- LIS
1 stop28h 50m
LEVEL
Fri 6/59:15 pm
LIS
- SFO
1 stop28h 45m
LEVEL
Deal found 2/26![LEVEL logo]()
$643
This British Airways deal was found by Cheapflights users on 2/28. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/185:45 pm
SFO
- LIS
1 stop16h 40m
Multiple Airlines
Fri 5/111:05 am
LIS
- SFO
1 stop16h 06m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$775
This United Airlines deal was found by Cheapflights users on 2/27. 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.
Thu 4/21:45 pm
SFO
- LIS
1 stop25h 00m
United Airlines
Thu 4/911:25 am
LIS
- SFO
1 stop17h 57m
United Airlines
Deal found 2/27![United Airlines logo]()
$779
This Turkish Airlines deal was found by Cheapflights users on 2/28. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/117:50 pm
SFO
- OPO
1 stop31h 05m
Turkish Airlines
Wed 3/184:10 pm
OPO
- SFO
1 stop32h 35m
Turkish Airlines
Deal found 2/28![Turkish Airlines logo]()
$780
This Scandinavian Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/224:45 pm
SFO
- OPO
1 stop16h 20m
Scandinavian Airlines
Wed 9/95:00 am
OPO
- SFO
2 stops17h 40m
Scandinavian Airlines
Deal found 2/25![Scandinavian Airlines logo]()
$892
This British Airways deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/154:35 pm
SFO
- LIS
1 stop22h 40m
British Airways
Mon 4/206:45 pm
LIS
- SFO
1 stop27h 05m
British Airways
Deal found 2/25![British Airways logo]()
$515
This Finnair deal was found by Cheapflights users on 3/1. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/251:28 pm
SFO
- LIS
2 stops25h 57m
Finnair
Sat 5/26:35 am
LIS
- SFO
2 stops26h 23m
Finnair
Deal found 3/1![Finnair logo]()
$577
This British Airways deal was found by Cheapflights users on 2/27. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/124:35 pm
SFO
- FNC
1 stop17h 30m
British Airways
Mon 4/276:55 pm
FNC
- SFO
2 stops30h 45m
British Airways
Deal found 2/27![British Airways logo]()
$618
This KLM deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/225:00 pm
SFO
- OPO
2 stops17h 20m
KLM
Mon 5/47:00 pm
OPO
- SFO
1 stop24h 45m
KLM
Deal found 2/26![KLM logo]()
$688
This Finnair deal was found by Cheapflights users on 2/28. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/185:45 pm
SFO
- LIS
1 stop21h 40m
Finnair
Fri 5/16:35 am
LIS
- SFO
2 stops25h 24m
Finnair
Deal found 2/28![Finnair logo]()
$657
This British Airways deal was found by Cheapflights users on 2/28. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1410:16 pm
SFO
- FNC
2 stops30h 09m
British Airways
Tue 4/217:35 pm
FNC
- SFO
2 stops31h 45m
British Airways
Deal found 2/28![British Airways logo]()
$622
This KLM deal was found by Cheapflights users on 2/27. 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.
Tue 5/263:05 pm
SFO
- LIS
1 stop23h 20m
Multiple Airlines
Tue 6/2310:00 am
LIS
- SFO
1 stop16h 39m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$808
This United Airlines deal was found by Cheapflights users on 2/27. 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 4/2712:45 am
SFO
- FAO
2 stops29h 05m
United Airlines
Wed 5/63:25 pm
FAO
- SFO
2 stops38h 09m
United Airlines
Deal found 2/27![United Airlines logo]()
$838
This British Airways deal was found by Cheapflights users on 2/27. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/274:35 pm
SFO
- FAO
1 stop17h 15m
British Airways
Wed 5/68:00 pm
FAO
- SFO
1 stop29h 40m
British Airways
Deal found 2/27![British Airways logo]()
$645
This TAP AIR PORTUGAL deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/44:35 pm
SFO
- TER
1 stop35h 25m
TAP AIR PORTUGAL
Sun 3/811:50 am
TER
- SFO
1 stop33h 45m
TAP AIR PORTUGAL
Deal found 2/25![TAP AIR PORTUGAL logo]()
$862
This KLM deal was found by Cheapflights users on 2/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/21:45 pm
SFO
- LIS
1 stop25h 05m
KLM
Wed 4/87:45 pm
LIS
- SFO
1 stop24h 00m
KLM
Deal found 2/28![KLM logo]()
$793
This Booking.com deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/184:45 pm
SFO
- FAO
2 stops56h 45m
Scandinavian Airlines
Sat 8/156:45 pm
FAO
- SFO
1 stop27h 55m
Scandinavian Airlines
Deal found 2/25![Scandinavian Airlines logo]()
$903
This Delta deal was found by Cheapflights users on 2/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/53:05 pm
SFO
- OPO
1 stop22h 55m
Delta
Mon 4/1311:25 am
OPO
- SFO
2 stops21h 02m
Delta
Deal found 2/28![Delta logo]()
$938
This United Airlines deal was found by Cheapflights users on 2/26. 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.
Wed 4/226:33 am
SFO
- OPO
2 stops25h 07m
United Airlines
Sun 4/266:00 am
OPO
- SFO
2 stops27h 35m
United Airlines
Deal found 2/26![United Airlines logo]()
$857
This British Airways deal was found by Cheapflights users on 2/27. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/244:35 pm
SFO
- FAO
1 stop17h 15m
British Airways
Wed 5/68:00 pm
FAO
- SFO
1 stop25h 50m
British Airways
Deal found 2/27![British Airways logo]()
$657
This TAP AIR PORTUGAL deal was found by Cheapflights users on 2/28. 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.
Sat 7/117:35 pm
SFO
- FAO
1 stop13h 45m
TAP AIR PORTUGAL
Tue 7/216:15 pm
FAO
- SFO
1 stop28h 20m
TAP AIR PORTUGAL
Deal found 2/28![TAP AIR PORTUGAL logo]()
$898
This Scandinavian Airlines deal was found by Cheapflights users on 2/26. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2211:55 pm
SFO
- OPO
2 stops51h 05m
Scandinavian Airlines
Fri 5/295:55 pm
OPO
- SFO
1 stop28h 45m
Scandinavian Airlines
Deal found 2/26![Scandinavian Airlines logo]()
$904
This British Airways deal was found by Cheapflights users on 2/27. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/304:35 pm
SFO
- FAO
1 stop18h 30m
British Airways
Wed 5/68:00 pm
FAO
- SFO
1 stop25h 50m
British Airways
Deal found 2/27![British Airways logo]()
$657
This oojo deal was found by Cheapflights users on 2/28. 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.
Sun 4/1210:00 pm
SFO
- SJZ
2 stops28h 00m
Multiple Airlines
Sun 4/199:25 am
SJZ
- SFO
2 stops31h 45m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$979
This Delta deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/302:57 pm
SFO
- OPO
2 stops23h 03m
Delta
Sat 5/165:00 am
OPO
- SFO
1 stop14h 45m
Delta
Deal found 2/25![Delta logo]()
$1,007
Last-minute flights from San Francisco to PortugalDiscover last-minute flight deals from San Francisco to Portugal. Data last updated March 1, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Portugal. Data last updated March 1, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 2/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/277:10 pm
SFO
- LIS
Nonstop11h 05m
TAP AIR PORTUGAL
Mon 3/29:40 am
LIS
- SFO
Nonstop12h 55m
TAP AIR PORTUGAL
Deal found 2/26![TAP AIR PORTUGAL logo]()
$511
This Rumbo deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/284:35 pm
SFO
- PDL
1 stop32h 45m
TAP AIR PORTUGAL
Fri 3/136:30 am
PDL
- SFO
1 stop16h 35m
TAP AIR PORTUGAL
Deal found 2/25![TAP AIR PORTUGAL logo]()
$625
This Delta deal was found by Cheapflights users on 2/27. 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.
Sun 3/17:10 am
SFO
- LIS
1 stop16h 50m
Delta
Wed 3/1111:25 am
LIS
- SFO
1 stop32h 25m
Delta
Deal found 2/27![Delta logo]()
$512
This Delta deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/19:55 am
SFO
- LIS
2 stops20h 40m
Delta
Tue 3/105:00 am
LIS
- SFO
2 stops22h 59m
Delta
Deal found 2/25![Delta logo]()
$513
This United Airlines deal was found by Cheapflights users on 2/26. 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.
Sun 3/15:10 am
SFO
- LIS
2 stops19h 00m
United Airlines
Wed 3/115:00 am
LIS
- SFO
2 stops25h 59m
United Airlines
Deal found 2/26![United Airlines logo]()
$514
This United Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/111:20 pm
SFO
- LIS
1 stop26h 55m
United Airlines
Tue 3/105:00 am
LIS
- SFO
2 stops23h 48m
United Airlines
Deal found 2/25![United Airlines logo]()
$515
This United Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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
1 stop28h 55m
United Airlines
Wed 3/185:00 am
LIS
- SFO
2 stops38h 42m
United Airlines
Deal found 2/25![United Airlines logo]()
$521
This United Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/28:30 am
SFO
- LIS
1 stop15h 40m
United Airlines
Tue 3/105:00 am
LIS
- SFO
2 stops22h 02m
United Airlines
Deal found 2/25![United Airlines logo]()
$510
This American Airlines deal was found by Cheapflights users on 2/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/36:00 am
SFO
- LIS
2 stops19h 05m
American Airlines
Wed 3/118:20 am
LIS
- SFO
2 stops19h 53m
American Airlines
Deal found 2/26![American Airlines logo]()
$509
This FlightHub deal was found by Cheapflights users on 2/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/105:40 pm
SFO
- LIS
1 stop15h 25m
Scandinavian Airlines
Sun 3/156:00 pm
LIS
- SFO
1 stop28h 35m
Scandinavian Airlines
Deal found 2/27![Scandinavian Airlines logo]()
$516
This KLM deal was found by Cheapflights users on 2/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/102:55 pm
SFO
- LIS
1 stop20h 55m
KLM
Tue 3/174:50 pm
LIS
- SFO
1 stop27h 00m
KLM
Deal found 2/28![KLM logo]()
$518
This Mytrip deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/165:35 pm
SFO
- OPO
2 stops22h 25m
Multiple Airlines
Tue 3/2412:55 pm
OPO
- SFO
2 stops33h 35m
Multiple Airlines
Deal found 2/25![Multiple Airlines logo]()
$638
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 March 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 March 1, 2026.
This LEVEL deal was found by Cheapflights users on 2/28. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:40 pm
SFO
- OPO
1 stop33h 25m
LEVEL
Deal found 2/28![LEVEL logo]()
$313
This Trip.com deal was found by Cheapflights users on 3/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1711:10 am
SFO
- OPO
2 stops23h 50m
Multiple Airlines
Deal found 3/1![Multiple Airlines logo]()
$314
This Trip.com deal was found by Cheapflights users on 3/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2411:10 am
SFO
- OPO
2 stops19h 35m
Multiple Airlines
Deal found 3/1![Multiple Airlines logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 2/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/152:39 pm
SFO
- OPO
3 stops45h 46m
Multiple Airlines
Deal found 2/26![Multiple Airlines logo]()
$340
This Trip.com deal was found by Cheapflights users on 3/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/252:40 pm
SFO
- OPO
3 stops24h 05m
Multiple Airlines
Deal found 3/1![Multiple Airlines logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 2/27. 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 4/267:40 pm
SFO
- PDL
3 stops36h 05m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$357
This Mytrip deal was found by Cheapflights users on 2/28. 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.
Tue 8/118:35 am
SFO
- FNC
2 stops22h 50m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$360
This Kiwi.com deal was found by Cheapflights users on 2/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/71:35 pm
SFO
- OPO
3 stops35h 55m
Multiple Airlines
Deal found 2/26![Multiple Airlines logo]()
$367
This Kiwi.com deal was found by Cheapflights users on 2/27. 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.
Tue 5/266:00 am
SFO
- OPO
3 stops29h 10m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$379
This Kiwi.com deal was found by Cheapflights users on 2/27. 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.
Sat 4/252:47 pm
SFO
- PDL
3 stops41h 13m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$380
This Kiwi.com deal was found by Cheapflights users on 2/27. 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.
Tue 4/217:02 am
SFO
- PDL
2 stops24h 38m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$399
This Air France deal was found by Cheapflights users on 2/26. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/164:40 pm
SFO
- LIS
1 stop17h 50m
Air France
Deal found 2/26![Air France logo]()
$406
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 March 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $510 (Kiwi.com) |
One-way from | $313 (LEVEL) |
Popular in | June |
Cheapest in | January |
Average price | $697 |
Good round-trip deal | $564 or less |
Good one-way deal | $452 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 March 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
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Tue 4/14
7:30 pm-11:00 pm
1 stop19h 30m
Lisbon Humberto Delgado
Mon 4/20
6:45 pm-1:50 pm
1 stop27h 05m
$515
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Wed 4/15
4:35 pm-11:15 pm
1 stop22h 40m
Lisbon Humberto Delgado
Mon 4/20
6:45 pm-1:50 pm
1 stop27h 05m
$515
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Tue 4/21
2:57 pm-5:50 pm
2 stops18h 53m
Lisbon Humberto Delgado
Tue 4/28
5:00 am-3:21 pm
2 stops18h 21m
$526
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Thu 4/16
5:45 pm-11:25 pm
1 stop21h 40m
Lisbon Humberto Delgado
Thu 4/23
6:35 am-11:59 pm
2 stops25h 24m
$531
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Tue 5/5
1:45 pm-2:35 pm
1 stop16h 50m
Lisbon Humberto Delgado
Wed 5/13
5:00 am-11:45 am
1 stop14h 45m
$551
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Sat 4/25
1:28 pm-11:25 pm
2 stops25h 57m
Lisbon Humberto Delgado
Sat 5/2
6:35 am-12:58 am
2 stops26h 23m
$577
San FranciscoFunchal
SFO - FNC
SFOFNC
San Francisco
Sun 4/12
4:35 pm-6:05 pm
1 stop17h 30m
Funchal Madeira
Mon 4/27
6:55 pm-5:40 pm
2 stops30h 45m
$618
San FranciscoFunchal
SFO - FNC
SFOFNC
San Francisco
Tue 4/14
10:16 pm-12:25 pm
2 stops30h 09m
Funchal Madeira
Tue 4/21
7:35 pm-7:20 pm
2 stops31h 45m
$622
San FranciscoPonta Delgada
SFO - PDL
SFOPDL
San Francisco
Tue 4/7
4:35 pm-11:45 pm
1 stop24h 10m
Ponta Delgada Nordela
Thu 4/16
7:40 pm-4:50 pm
1 stop28h 10m
$631
San FranciscoLisbon
SFO - LIS
SFOLIS
San Francisco
Sun 4/26
7:40 pm-8:30 am
1 stop28h 50m
Lisbon Humberto Delgado
Fri 6/5
9:15 pm-6:00 pm
1 stop28h 45m
$643
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-LIS
SFO-PDL
SFO-OPO
SFO-FNC
SFO-FAO
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from San Francisco to Portugal
SFO-PT0
SFO-LIS
SFO-PDL
SFO-OPO
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 March 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 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 March 1, 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.
Boarding
8.1
Entertainment
7.8
Crew
8.5
Comfort
7.9
Food
7.2
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Entertainment
7.8
Crew
8.5
Comfort
7.9
Food
7.2
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Entertainment
7.8
Crew
8.5
Comfort
7.9
Food
7.2
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Entertainment
7.8
Crew
8.5
Comfort
7.9
Food
7.2
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Entertainment
7.8
Crew
8.5
Comfort
7.9
Food
7.2
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Entertainment
7.8
Crew
8.5
Comfort
7.9
Food
7.2
Overall
7.9
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 March 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 March 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$291 | Average$701 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$309 | Average$910 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$409 | Average$653 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$431 | Average$877 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$440 | Average$1,074 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$488 | Average$1,044 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$489 | Average$746 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$495 | Average$730 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$510 | Average$747 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$518 | Average$885 | FlexibilityNo cancel fee | On-time79% |