$411+ Cheap flights from Portugal to San Francisco (SFO)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — SFO
Oct 9 — Oct 161
Round-trip
1 adult, Economy
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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 Portugal to San FranciscoExplore the most affordable flight options available from Portugal to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 9, 2026.
Explore the most affordable flight options available from Portugal to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 9, 2026.
This oojo deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” 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.
Fri 11/134:55 pm -
1 stop29h 55m
Sun 11/224:45 pm -
1 stop15h 20m
Deal found 9/5![Scandinavian Airlines logo]()
$643
This oojo deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/264:55 pm -
1 stop29h 55m
Fri 10/305:45 pm -
1 stop15h 20m
Deal found 9/8![Scandinavian Airlines logo]()
$649
This Trip.com deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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 10/274:55 pm -
1 stop29h 55m
Fri 10/305:45 pm -
1 stop15h 20m
Deal found 9/6![Scandinavian Airlines logo]()
$651
This oojo deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 11/114:55 pm -
1 stop29h 55m
Fri 11/274:45 pm -
1 stop15h 20m
Deal found 9/9![Scandinavian Airlines logo]()
$667
This Mytrip deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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 10/2010:20 am -
2 stops34h 55m
Tue 10/274:05 pm -
2 stops23h 25m
Deal found 9/6![Multiple Airlines logo]()
$682
This Trip.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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 10/148:15 pm -
1 stop26h 25m
Fri 10/305:45 pm -
1 stop15h 20m
Deal found 9/7![Scandinavian Airlines logo]()
$687
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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.
Fri 11/207:00 pm -
2 stops25h 35m
Fri 11/277:25 pm -
3 stops31h 20m
Deal found 9/9![Multiple Airlines logo]()
$693
This Ticket deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:00 am -
1 stop14h 45m
Wed 11/41:50 pm -
1 stop16h 50m
Deal found 9/9![KLM logo]()
$700
This Rumbo deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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.
Mon 10/511:50 pm -
1 stop21h 45m
Mon 10/194:30 pm -
1 stop14h 30m
Deal found 9/6![TAP AIR PORTUGAL logo]()
$704
This Mytrip deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” 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.
Thu 10/228:50 pm -
2 stops27h 25m
Wed 11/48:25 am -
3 stops25h 05m
Deal found 9/5![Multiple Airlines logo]()
$707
This Justfly.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” 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.
Thu 11/55:50 pm -
1 stop29h 00m
Tue 11/177:00 am -
2 stops20h 05m
Deal found 9/5![Scandinavian Airlines logo]()
$713
This FlightHub deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:05 am -
1 stop17h 30m
Fri 10/308:15 pm -
1 stop13h 45m
Deal found 9/8![TAP AIR PORTUGAL logo]()
$725
Best flights from Portugal to San FranciscoDiscover carefully curated flight deals from Portugal to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
Discover carefully curated flight deals from Portugal to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 11/55:00 am -
1 stop14h 45m
Wed 12/24:35 pm -
2 stops21h 25m
Deal found 9/9![Delta logo]()
$738
This KLM deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/255:55 am -
1 stop14h 55m
Tue 10/63:05 pm -
1 stop16h 20m
Deal found 9/5![KLM logo]()
$743
This British Airways deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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 1/106:50 pm -
1 stop28h 05m
Mon 1/188:04 am -
2 stops20h 01m
Deal found 9/6![British Airways logo]()
$774
This United Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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 10/226:00 am -
2 stops26h 30m
Thu 10/2910:05 am -
1 stop16h 25m
Deal found 9/7![United Airlines logo]()
$867
This Scandinavian Airlines deal was found by Cheapflights users on 9/4. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/23:00 pm -
1 stop31h 50m
Sat 3/66:50 pm -
2 stops59h 20m
Deal found 9/4![Scandinavian Airlines logo]()
$899
This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/29:15 pm -
1 stop25h 30m
Sat 3/64:35 pm -
1 stop22h 20m
Deal found 9/5![TAP AIR PORTUGAL logo]()
$1,176
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 11/55:00 am -
1 stop14h 45m
Tue 11/176:00 am -
2 stops20h 35m
Deal found 9/9![Delta logo]()
$738
This KLM deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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 10/306:00 pm -
1 stop25h 45m
Thu 11/51:50 pm -
1 stop19h 20m
Deal found 9/7![KLM logo]()
$751
This British Airways deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/66:45 pm -
1 stop27h 05m
Sun 11/225:25 pm -
1 stop16h 20m
Deal found 9/8![British Airways logo]()
$775
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/205:00 am -
1 stop14h 45m
Tue 10/271:20 pm -
2 stops18h 50m
Deal found 9/9![Delta logo]()
$742
This British Airways deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/227:20 am -
1 stop18h 20m
Wed 11/412:00 pm -
2 stops21h 45m
Deal found 9/8![British Airways logo]()
$775
This KLM deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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 10/15:55 am -
1 stop20h 05m
Tue 10/274:10 pm -
1 stop22h 50m
Deal found 9/6![KLM logo]()
$775
This United Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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 10/225:05 am -
1 stop15h 35m
Wed 11/410:05 am -
1 stop14h 05m
Deal found 9/7![United Airlines logo]()
$869
This Delta deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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 9/255:00 am -
2 stops21h 17m
Tue 10/69:46 am -
2 stops21h 39m
Deal found 9/6![Delta logo]()
$742
This Delta deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” 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 9/235:00 am -
2 stops19h 58m
Wed 10/79:54 am -
2 stops21h 31m
Deal found 9/5![Delta logo]()
$743
This United Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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 10/1012:20 pm -
1 stop17h 06m
Fri 10/164:51 pm -
1 stop33h 44m
Deal found 9/7![United Airlines logo]()
$902
This Delta deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:00 am -
1 stop14h 45m
Wed 11/41:50 pm -
1 stop16h 50m
Deal found 9/8![Delta logo]()
$747
This British Airways deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” 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 10/59:25 pm -
1 stop24h 25m
Mon 10/197:30 pm -
1 stop16h 35m
Deal found 9/5![British Airways logo]()
$925
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/56:00 am -
1 stop21h 50m
Mon 10/196:00 am -
1 stop19h 45m
Deal found 9/9![United Airlines logo]()
$971
This Delta deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/56:30 am -
2 stops22h 02m
Mon 10/193:05 pm -
1 stop16h 20m
Deal found 9/8![Delta logo]()
$749
This Delta deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” 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 9/305:00 am -
2 stops22h 40m
Wed 10/213:05 pm -
1 stop18h 45m
Deal found 9/5![Delta logo]()
$751
This British Airways deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3012:05 pm -
1 stop34h 50m
Thu 11/58:35 pm -
1 stop29h 40m
Deal found 9/8![British Airways logo]()
$1,080
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 11/135:00 am -
2 stops22h 35m
Sun 11/2210:38 am -
2 stops20h 02m
Deal found 9/9![Delta logo]()
$755
This Delta deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” 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 9/265:00 am -
2 stops22h 40m
Tue 10/612:05 pm -
2 stops19h 20m
Deal found 9/5![Delta logo]()
$820
Last-minute flights from Portugal to San FranciscoDiscover last-minute flight deals from Portugal to San Francisco. Data last updated September 9, 2026 and is based on user searches.
Discover last-minute flight deals from Portugal to San Francisco. Data last updated September 9, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1411:35 am -
2 stops33h 40m
Mon 9/213:15 pm -
2 stops20h 00m
Deal found 9/9![Multiple Airlines logo]()
$922
This Air France deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/159:50 am -
1 stop16h 10m
Mon 10/53:05 pm -
1 stop23h 20m
Deal found 9/6![Air France logo]()
$751
This Rumbo deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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.
Tue 9/1512:30 pm -
2 stops18h 58m
Mon 10/52:01 pm -
2 stops18h 04m
Deal found 9/6![Iberia logo]()
$868
This Kiwi.com deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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 9/156:15 am -
2 stops42h 25m
Mon 10/55:35 pm -
1 stop17h 20m
Deal found 9/6![Multiple Airlines logo]()
$902
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 9/235:00 am -
1 stop14h 45m
Wed 10/712:05 pm -
2 stops19h 20m
Deal found 9/9![Delta logo]()
$738
This Delta deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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 9/255:00 am -
2 stops21h 17m
Tue 10/611:45 am -
2 stops19h 40m
Deal found 9/7![Delta logo]()
$742
This Delta deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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 9/305:00 am -
1 stop14h 45m
Mon 10/264:15 pm -
2 stops22h 45m
Deal found 9/7![Delta logo]()
$737
This Rumbo deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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.
Mon 10/511:50 pm -
1 stop21h 45m
Mon 10/194:30 pm -
1 stop14h 30m
Deal found 9/6![TAP AIR PORTUGAL logo]()
$704
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/59:45 pm -
2 stops23h 05m
Mon 10/193:05 pm -
2 stops24h 50m
Deal found 9/9![Multiple Airlines logo]()
$731
This Mytrip deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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 10/64:00 pm -
3 stops32h 15m
Tue 10/138:10 am -
2 stops25h 40m
Deal found 9/6![Multiple Airlines logo]()
$735
This FlightHub deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:05 am -
1 stop17h 30m
Fri 10/308:15 pm -
1 stop13h 45m
Deal found 9/8![TAP AIR PORTUGAL logo]()
$725
This KLM deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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 10/306:00 pm -
1 stop25h 45m
Thu 11/510:35 am -
2 stops22h 35m
Deal found 9/7![KLM logo]()
$751
One-way flights from Portugal to San FranciscoSearch for one-way flight options from Portugal to San Francisco. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
Search for one-way flight options from Portugal to San Francisco. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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 12/155:35 pm -
2 stops54h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$411
This Kiwi.com deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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 12/1210:05 pm -
2 stops48h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$424
This Kiwi.com deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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 12/1311:00 am -
3 stops51h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$427
This Kiwi.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” 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 12/166:30 am -
2 stops41h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$440
This Kiwi.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” 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 12/149:55 pm -
2 stops48h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$442
This Kiwi.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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 11/136:15 am -
2 stops40h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$466
This Kiwi.com deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/175:55 pm -
2 stops30h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$469
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/146:00 am -
1 stop22h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$704
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/176:40 pm -
2 stops33h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$710
This oojo deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 9/2411:25 am -
1 stop36h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Aer Lingus logo]()
$712
This oojo deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 9/2310:15 pm -
2 stops33h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Aer Lingus logo]()
$715
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:20 am -
3 stops36h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$719
Find flight deals from Portugal to San Francisco
Keep the following information in mind while searching for Portugal to San Francisco flight deals. Data was last updated September 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $591 (Mytrip) |
One-way from | $411 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $913 |
Good round-trip deal | $913 or less |
Good one-way deal | $811 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Portugal to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 9, 2026.
Use the filters below to find and compare flights from Portugal to San Francisco that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortoSan Francisco
OPO Porto - SFO San Francisco
OPOSFO
Porto
Thu 10/22
6:00 pm-8:50 pm
1 stop34h 50m
San Francisco
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$571
PortoSan Francisco
OPO Porto - SFO San Francisco
OPOSFO
Porto
Sun 12/13
8:05 pm-6:45 pm
1 stop30h 40m
San Francisco
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$599
PortoSan Francisco
OPO Porto - SFO San Francisco
OPOSFO
Porto
Wed 12/16
6:40 pm-2:55 pm
1 stop28h 15m
San Francisco
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$599
LisbonSan Francisco
LIS Lisbon Humberto Delgado - SFO San Francisco
LISSFO
Lisbon Humberto Delgado
Tue 10/13
6:35 am-1:07 am
2 stops26h 32m
San Francisco
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$732
PortoSan Francisco
OPO Porto - SFO San Francisco
OPOSFO
Porto
Fri 1/1
12:25 pm-11:53 am
2 stops31h 28m
San Francisco
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$733
PortoSan Francisco
OPO Porto - SFO San Francisco
OPOSFO
Porto
Thu 11/5
5:00 am-11:45 am
1 stop14h 45m
San Francisco
Wed 12/2
4:35 pm-10:00 pm
2 stops21h 25m
$738
PortoSan Francisco
OPO Porto - SFO San Francisco
OPOSFO
Porto
Thu 11/5
5:00 am-11:45 am
1 stop14h 45m
San Francisco
Tue 11/17
6:00 am-10:35 am
2 stops20h 35m
$738
LisbonSan Francisco
LIS Lisbon Humberto Delgado - SFO San Francisco
LISSFO
Lisbon Humberto Delgado
Tue 10/20
5:00 am-11:45 am
1 stop14h 45m
San Francisco
Tue 10/27
1:20 pm-3:10 pm
2 stops18h 50m
$742
PortoSan Francisco
OPO Porto - SFO San Francisco
OPOSFO
Porto
Fri 9/25
5:00 am-6:17 pm
2 stops21h 17m
San Francisco
Tue 10/6
9:46 am-3:25 pm
2 stops21h 39m
$742
PortoSan Francisco
OPO Porto - SFO San Francisco
OPOSFO
Porto
Fri 9/25
5:55 am-12:50 pm
1 stop14h 55m
San Francisco
Tue 10/6
3:05 pm-3:25 pm
1 stop16h 20m
$743
Showing 1-10 of 43 resultsSorted by cheapest first
Best time to book a flight from Portugal to San Francisco
Have a flexible travel schedule? Discover the best time to fly to San Francisco from Portugal with our price prediction graph.
OPO-SFO
LIS-SFO
FNC-SFO
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 Portugal to San Francisco
PT0-SFO
OPO-SFO
LIS-SFO
FNC-SFO
What is the cheapest month to book a flight from Portugal to San Francisco?
Currently, January is the cheapest month in which you can book a flight from Portugal to San Francisco (average of $781). Flying from Portugal to San Francisco in July is currently the most expensive (average of $1,084). 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 PT to SFO?
Find hourly flight availability from Portugal to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 9, 2026.
When flying from Portugal to San Francisco, 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 Portugal to San Francisco delayed?
About 18% of weekly flights between Portugal and San Francisco have experienced delays in the past year, with the average delay time being 108 minutes.
What is the most punctual flight time for Portugal to San Francisco flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon 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 Portugal to San Francisco flights?
Over the last year, TAP AIR PORTUGAL have had the lowest number of delays on this route, with just 18% of flights being delayed.
How far ahead should I book a flight from Portugal to San Francisco?
The best time to book flights from Portugal to San Francisco is 85 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Reviews of airlines servicing San Francisco
Get insights into the airlines that provide service to San Francisco. 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 San Francisco. Reviews last updated September 9, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andTAP AIR PORTUGAL from Portugal to San Francisco. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Comfort
7.8
Crew
8.5
Boarding
8.1
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Food
7.2
Comfort
7.8
Crew
8.5
Boarding
8.1
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Food
7.2
Comfort
7.8
Crew
8.5
Boarding
8.1
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Food
7.2
Comfort
7.8
Crew
8.5
Boarding
8.1
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Food
7.2
Comfort
7.8
Crew
8.5
Boarding
8.1
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Related info for your journey
Find useful and relevant information for your journey from Portugal to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near San Francisco?
Book flights to San Francisco if you plan to visit one of these locationsSouth San Francisco
Santa Clara
Santa Cruz
Walnut Creek
Emeryville
San Bruno
Burlingame
Rancho Cordova
Roseville
Fairfield
Cupertino
Newark
Hayward
San Ramon
Redwood City
Manteca
Vallejo
San Carlos
Turlock
Davis
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Complete your trip
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Portugal and San Francisco flights
Browse other Portugal and San Francisco flight options. Last updated on September 9, 2026.
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Other flights to San Francisco
Explore flights to San Francisco departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 9, 2026.
Portugal to San Francisco flights
Consider these flights traveling from Portugal to San Francisco.
Top 4 airlines flying from Portugal to San Francisco
Discover the top 4 airlines that operate flights from Portugal to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$561 | Average$885 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$642 | Average$830 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$701 | Average$980 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$766 | Average$944 | FlexibilityNo cancel fee | On-time69% |