$171+ Cheap flights from San Francisco (SFO) to Puerto Rico
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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SJU
Oct 21 — Oct 281
Round-trip
1 adult, Economy
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Find cheap flights from San Francisco to Puerto Rico 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from San Francisco to Puerto Rico
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Cheapest flights from San Francisco to Puerto RicoExplore the most affordable flight options available from San Francisco to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 21, 2026.
Explore the most affordable flight options available from San Francisco to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 21, 2026.
This Mytrip deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1112:20 pm -
2 stops20h 16m
Tue 11/174:52 pm -
2 stops22h 25m
Deal found 9/20![Frontier logo]()
$420
This Mytrip deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:11 pm -
2 stops17h 08m
Fri 10/233:04 am -
2 stops22h 21m
Deal found 9/20![Frontier logo]()
$421
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2610:19 pm -
2 stops31h 56m
Sat 10/312:58 pm -
1 stop33h 42m
Deal found 9/18![Frontier logo]()
$422
This Kiwi.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 10/3010:23 pm -
2 stops22h 21m
Thu 11/53:59 pm -
1 stop32h 41m
Deal found 9/19![Frontier logo]()
$426
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/910:14 pm -
1 stop14h 52m
Tue 10/1312:59 am -
2 stops26h 16m
Deal found 9/18![Frontier logo]()
$430
This Cheapflightsfares deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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.
Sat 10/310:05 pm -
1 stop15h 01m
Wed 10/76:30 am -
1 stop16h 38m
Deal found 9/20![Frontier logo]()
$431
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/910:14 pm -
1 stop14h 52m
Sun 10/1112:59 am -
2 stops34h 14m
Deal found 9/18![Frontier logo]()
$442
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2310:14 pm -
1 stop14h 52m
Wed 10/287:23 am -
2 stops27h 56m
Deal found 9/17![Frontier logo]()
$444
This Kiwi.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 10/610:05 pm -
2 stops14h 12m
Wed 10/145:11 pm -
1 stop27h 44m
Deal found 9/19![Frontier logo]()
$446
This United Airlines deal was found by Cheapflights users on 9/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:00 am -
1 stop12h 57m
Sun 11/151:09 am -
2 stops14h 33m
Deal found 9/18![United Airlines logo]()
$575
This Priceline deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 10/1911:10 pm -
1 stop22h 19m
Mon 10/265:01 am -
1 stop20h 33m
Deal found 9/20![JetBlue logo]()
$588
This Mytrip deal was found by Cheapflights users on 9/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2911:42 am -
2 stops19h 32m
Thu 10/2210:52 am -
2 stops16h 23m
Deal found 9/16![Frontier logo]()
$594
Best flights from San Francisco to Puerto RicoDiscover carefully curated flight deals from San Francisco to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 21, 2026.
Discover carefully curated flight deals from San Francisco to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 21, 2026.
This Southwest deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/176:10 am -
2 stops11h 45m
Mon 11/2312:40 pm -
2 stops14h 20m
Deal found 9/19![Southwest logo]()
$540
This Delta deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 12/97:00 am -
1 stop12h 58m
Tue 12/153:04 pm -
2 stops13h 06m
Deal found 9/20![Delta logo]()
$550
This JetBlue deal was found by Cheapflights users on 9/18. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/106:00 am -
1 stop13h 30m
Thu 12/175:00 am -
1 stop9h 50m
Deal found 9/18![JetBlue logo]()
$550
This Mytrip deal was found by Cheapflights users on 9/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2911:42 am -
2 stops19h 32m
Thu 10/2210:52 am -
2 stops16h 23m
Deal found 9/16![Frontier logo]()
$594
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Tue 9/296:15 am -
2 stops13h 54m
Wed 10/2112:15 am -
1 stop11h 59m
Deal found 9/16![United Airlines logo]()
$603
This Priceline deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 10/1911:59 pm -
2 stops28h 56m
Mon 10/269:43 am -
2 stops39h 46m
Deal found 9/20![Multiple Airlines logo]()
$770
This Southwest deal was found by Cheapflights users on 9/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:10 am -
2 stops11h 40m
Sat 11/75:40 am -
2 stops13h 30m
Deal found 9/18![Southwest logo]()
$545
This Delta deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 12/157:00 am -
1 stop12h 58m
Wed 12/232:10 pm -
2 stops13h 56m
Deal found 9/20![Delta logo]()
$550
This Delta deal was found by Cheapflights users on 9/16. 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 11/179:10 am -
1 stop10h 44m
Wed 1/277:30 am -
1 stop13h 41m
Deal found 9/16![Delta logo]()
$550
This Southwest deal was found by Cheapflights users on 9/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/289:20 am -
2 stops11h 30m
Sat 11/71:30 pm -
1 stop11h 50m
Deal found 9/16![Southwest logo]()
$550
This FlightHub deal was found by Cheapflights users on 9/17. 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.
Thu 12/101:10 pm -
1 stop17h 15m
Thu 12/172:40 pm -
1 stop22h 35m
Deal found 9/17![JetBlue logo]()
$611
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 11/87:51 pm -
2 stops24h 06m
Sat 11/141:09 am -
2 stops14h 33m
Deal found 9/20![United Airlines logo]()
$648
This JetBlue deal was found by Cheapflights users on 9/17. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2510:35 pm -
1 stop9h 15m
Wed 12/26:01 am -
1 stop11h 43m
Deal found 9/17![JetBlue logo]()
$614
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/195:00 am -
2 stops15h 09m
Wed 10/2112:15 am -
1 stop11h 59m
Deal found 9/17![United Airlines logo]()
$650
This Delta deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 10/58:59 pm -
2 stops16h 50m
Fri 10/2312:50 pm -
2 stops14h 08m
Deal found 9/19![Delta logo]()
$603
This Southwest deal was found by Cheapflights users on 9/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/104:55 pm -
2 stops13h 35m
Thu 12/175:35 am -
2 stops12h 50m
Deal found 9/18![Southwest logo]()
$615
This FlightHub deal was found by Cheapflights users on 9/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/81:05 pm -
1 stop21h 14m
Sun 11/156:01 am -
1 stop32h 15m
Deal found 9/18![JetBlue logo]()
$624
This Justfly.com deal was found by Cheapflights users on 9/16. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1711:25 pm -
1 stop22h 25m
Wed 12/211:15 am -
1 stop15h 09m
Deal found 9/16![JetBlue logo]()
$662
This JetBlue deal was found by Cheapflights users on 9/16. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2811:30 am -
1 stop9h 41m
Sat 11/75:23 am -
1 stop10h 27m
Deal found 9/16![JetBlue logo]()
$706
This JetBlue deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2611:30 am -
1 stop9h 41m
Fri 10/305:01 am -
1 stop9h 53m
Deal found 9/20![JetBlue logo]()
$706
This FlightHub deal was found by Cheapflights users on 9/17. 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.
Mon 11/3010:35 pm -
1 stop31h 50m
Sat 12/511:15 am -
1 stop26h 05m
Deal found 9/17![JetBlue logo]()
$708
This FlightHub deal was found by Cheapflights users on 9/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/311:30 am -
1 stop10h 20m
Sat 11/75:23 am -
1 stop10h 27m
Deal found 9/18![JetBlue logo]()
$715
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Sun 10/411:55 pm -
2 stops13h 16m
Wed 10/71:19 pm -
2 stops14h 40m
Deal found 9/16![United Airlines logo]()
$1,317
This JetBlue deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1710:40 am -
1 stop10h 49m
Sun 11/15:23 am -
1 stop10h 31m
Deal found 9/19![JetBlue logo]()
$745
This FlightHub deal was found by Cheapflights users on 9/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/182:35 pm -
1 stop30h 24m
Tue 12/111:15 am -
1 stop15h 09m
Deal found 9/16![JetBlue logo]()
$755
This United Airlines deal was found by Cheapflights users on 9/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1812:45 am -
2 stops13h 36m
Wed 10/2110:48 am -
2 stops14h 02m
Deal found 9/18![United Airlines logo]()
$1,558
This United Airlines deal was found by Cheapflights users on 9/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/212:35 am -
2 stops13h 46m
Wed 10/710:48 am -
3 stops16h 42m
Deal found 9/18![United Airlines logo]()
$1,558
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” 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 10/611:55 pm -
2 stops14h 26m
Sat 10/1010:48 am -
2 stops14h 02m
Deal found 9/21![United Airlines logo]()
$1,896
This United Airlines deal was found by Cheapflights users on 9/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/196:20 am -
2 stops31h 01m
Sun 1/310:48 am -
2 stops48h 17m
Deal found 9/18![United Airlines logo]()
$2,303
This United Airlines deal was found by Cheapflights users on 9/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1812:45 pm -
2 stops24h 36m
Fri 1/110:48 am -
2 stops24h 05m
Deal found 9/18![United Airlines logo]()
$2,327
Last-minute flights from San Francisco to Puerto RicoDiscover last-minute flight deals from San Francisco to Puerto Rico. Data last updated September 21, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Puerto Rico. Data last updated September 21, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 9/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2911:42 am -
2 stops19h 32m
Thu 10/2210:52 am -
2 stops16h 23m
Deal found 9/16![Frontier logo]()
$594
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Tue 9/296:15 am -
2 stops13h 54m
Wed 10/2112:15 am -
1 stop11h 59m
Deal found 9/16![United Airlines logo]()
$603
This Cheapflightsfares deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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.
Sat 10/310:05 pm -
1 stop15h 01m
Wed 10/76:30 am -
1 stop16h 38m
Deal found 9/20![Frontier logo]()
$431
This Kiwi.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 10/610:05 pm -
2 stops14h 12m
Wed 10/145:11 pm -
1 stop27h 44m
Deal found 9/19![Frontier logo]()
$446
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/910:14 pm -
1 stop14h 52m
Tue 10/1312:59 am -
2 stops26h 16m
Deal found 9/18![Frontier logo]()
$430
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/910:14 pm -
1 stop14h 52m
Sun 10/1112:59 am -
2 stops34h 14m
Deal found 9/18![Frontier logo]()
$442
This Mytrip deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/173:11 pm -
2 stops21h 08m
Sun 11/14:52 pm -
2 stops22h 25m
Deal found 9/19![Frontier logo]()
$420
This Mytrip deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:11 pm -
2 stops17h 08m
Fri 10/233:04 am -
2 stops22h 21m
Deal found 9/20![Frontier logo]()
$421
This Priceline deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 10/1911:10 pm -
1 stop22h 19m
Mon 10/265:01 am -
1 stop20h 33m
Deal found 9/20![JetBlue logo]()
$588
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2310:14 pm -
1 stop14h 52m
Wed 10/287:23 am -
2 stops27h 56m
Deal found 9/17![Frontier logo]()
$444
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2610:19 pm -
2 stops31h 56m
Sat 10/312:58 pm -
1 stop33h 42m
Deal found 9/18![Frontier logo]()
$422
This Kiwi.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 10/3010:23 pm -
2 stops22h 21m
Thu 11/53:59 pm -
1 stop32h 41m
Deal found 9/19![Frontier logo]()
$426
One-way flights from San Francisco to Puerto RicoSearch for one-way flight options from San Francisco to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated September 21, 2026.
Search for one-way flight options from San Francisco to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated September 21, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 11/77:14 pm -
2 stops25h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$171
This Mytrip deal was found by Cheapflights users on 9/17. 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.
Sat 10/313:05 pm -
2 stops16h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$172
This Mytrip deal was found by Cheapflights users on 9/17. 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.
Wed 10/143:11 pm -
2 stops21h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” 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 10/207:25 pm -
2 stops17h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Frontier logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” 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 10/197:25 pm -
2 stops17h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Frontier logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 10/219:11 am -
2 stops26h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Frontier logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 10/2610:19 pm -
2 stops47h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Frontier logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 10/2210:19 pm -
2 stops38h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Frontier logo]()
$180
This Cheapflightsfares deal was found by Cheapflights users on 9/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1310:14 pm -
1 stop14h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$186
This Mytrip deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:11 pm -
2 stops17h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Frontier logo]()
$187
This Kiwi.com deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 11/183:05 pm -
2 stops31h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Frontier logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 11/177:14 pm -
2 stops12h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Frontier logo]()
$234
Find flight deals from San Francisco to Puerto Rico
Keep the following information in mind while searching for San Francisco to Puerto Rico flight deals. Data was last updated September 21, 2026.
Round-trip from | $420 (Mytrip) |
|---|---|
One-way from | $171 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $509 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Francisco to Puerto Rico 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 21, 2026.
Use the filters below to find and compare flights from San Francisco to Puerto Rico that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San FranciscoSan Juan
SFO San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Tue 10/6
10:05 pm-3:19 pm
1 stop14h 14m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$208
San FranciscoSan Juan
SFO San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Tue 10/13
1:50 pm-11:57 am
2 stops19h 07m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$242
San FranciscoSan Juan
SFO San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Sat 11/7
5:45 pm-1:05 pm
2 stops15h 20m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$275
San FranciscoSan Juan
SFO San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Sat 12/5
6:00 pm-11:50 am
2 stops13h 50m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$275
Quickest round-trip
San FranciscoSan Juan
SFO San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Sat 12/5
8:00 am-8:55 pm
1 stop8h 55m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$275
San FranciscoSan Juan
SFO San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Mon 11/30
11:35 pm-5:38 pm
2 stops14h 03m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$275
San FranciscoSan Juan
SFO San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Sat 10/31
5:00 am-8:00 pm
1 stop12h 00m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$275
San FranciscoSan Juan
SFO San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Mon 10/26
11:25 pm-1:04 pm
1 stop10h 39m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$275
San FranciscoSan Juan
SFO San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Sat 10/31
5:50 am-10:18 pm
2 stops13h 28m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$275
San FranciscoAguadilla
SFO San Francisco - BQN Aguadilla Borinquen
SFOBQN
San Francisco
Sun 10/4
9:00 am-10:13 am
2 stops22h 13m
Aguadilla Borinquen
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$306
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from San Francisco to Puerto Rico
Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from San Francisco with our price prediction graph.
SFO-SJU
SFO-BQN
SFO-PSE
SFO-MAZ
SFO-CPX
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 Puerto Rico
SFO-PR0
SFO-SJU
SFO-BQN
SFO-PSE
SFO-MAZ
What is the cheapest month to book a flight from San Francisco to Puerto Rico?
Currently, January is the cheapest month in which you can book a flight from San Francisco to Puerto Rico (average of $485). Flying from San Francisco to Puerto Rico in December is currently the most expensive (average of $719). 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.
How far ahead should I book a flight from San Francisco to Puerto Rico?
Booking 72 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Francisco to Puerto Rico. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Reviews of airlines servicing Puerto Rico
Get insights into the airlines that provide service to Puerto Rico. 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 Puerto Rico. Reviews last updated September 21, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andJetBlue from San Francisco to Puerto Rico by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Entertainment
7.8
Crew
8.5
Overall
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.8
Entertainment
7.8
Crew
8.5
Overall
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.8
Entertainment
7.8
Crew
8.5
Overall
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.8
Entertainment
7.8
Crew
8.5
Overall
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.8
Entertainment
7.8
Crew
8.5
Overall
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.8
Entertainment
7.8
Crew
8.5
Overall
7.8
Boarding
8.1
Food
7.2
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 Puerto Rico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for San Francisco to Puerto Rico
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Puerto Rico by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from San Francisco to Puerto Rico by cabin class
Find flights from San Francisco to Puerto Rico, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Francisco and Puerto Rico flights
Browse other San Francisco and Puerto Rico flight options. Last updated on September 21, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
San Francisco to Puerto Rico flights
Consider these flights traveling from San Francisco to Puerto Rico.
Top 8 airlines flying from San Francisco to Puerto Rico
Discover the top 8 airlines that operate flights from San Francisco to Puerto Rico. 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 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$122 | Average$426 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$222 | Average$934 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$222 | Average$495 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$289 | Average$485 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$348 | Average$566 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$351 | Average$766 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$370 | Average$616 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$414 | Average$593 | FlexibilityNo cancel fee | On-time63% |