$98+ Cheap flights from San Francisco (SFO) to San Juan
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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SJU
May 17 — May 241
Round-trip
1 adult, Economy
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Find cheap flights from San Francisco to San Juan with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from San Francisco to San JuanExplore the most affordable flight options available from San Francisco to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2026.
Explore the most affordable flight options available from San Francisco to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” 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 5/811:59 pm
SFO
- SJU
1 stop10h 33m
Multiple Airlines
Wed 5/136:41 pm
SJU
- SFO
2 stops32h 42m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$372
This Kiwi.com deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” 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 5/3012:52 pm
SFO
- SJU
2 stops32h 49m
Frontier
Wed 6/106:25 am
SJU
- SFO
1 stop19h 37m
Frontier
Deal found 4/12![Frontier logo]()
$375
This Kiwi.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1711:59 pm
SFO
- SJU
1 stop10h 33m
Multiple Airlines
Thu 5/282:09 am
SJU
- SFO
2 stops25h 14m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$384
This Kiwi.com deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2312:52 pm
SFO
- SJU
2 stops49h 22m
Multiple Airlines
Fri 5/292:37 pm
SJU
- SFO
1 stop11h 27m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$386
This Kiwi.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/611:59 pm
SFO
- SJU
2 stops38h 17m
Multiple Airlines
Thu 5/142:37 pm
SJU
- SFO
1 stop11h 27m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$388
This Priceline deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/148:51 pm
SFO
- SJU
1 stop32h 18m
Frontier
Mon 7/206:16 pm
SJU
- SFO
1 stop19h 13m
Frontier
Deal found 4/14![Frontier logo]()
$389
This deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/98:51 pm
SFO
- SJU
1 stop13h 25m
Frontier
Wed 6/243:06 am
SJU
- SFO
1 stop10h 28m
Frontier
Deal found 4/14![Frontier logo]()
$390
This Kiwi.com deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/106:00 am
SFO
- SJU
2 stops38h 57m
Multiple Airlines
Sat 5/162:37 pm
SJU
- SFO
1 stop11h 27m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$391
This Orbitz deal was found by Cheapflights users on 4/17. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/238:51 pm
SFO
- SJU
1 stop17h 08m
Frontier
Wed 7/16:05 pm
SJU
- SFO
1 stop19h 29m
Frontier
Deal found 4/17![Frontier logo]()
$393
This Kiwi.com deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1110:15 pm
SFO
- SJU
2 stops16h 11m
Multiple Airlines
Thu 5/142:37 pm
SJU
- SFO
1 stop11h 27m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$394
This Priceline deal was found by Cheapflights users on 4/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/210:38 pm
SFO
- SJU
1 stop12h 30m
Multiple Airlines
Wed 5/67:40 am
SJU
- SFO
1 stop19h 11m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$398
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 5/911:59 pm
SFO
- SJU
1 stop10h 33m
Multiple Airlines
Wed 5/136:41 pm
SJU
- SFO
2 stops31h 23m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$399
Best flights from San Francisco to San JuanDiscover carefully curated flight deals from San Francisco to San Juan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2026.
Discover carefully curated flight deals from San Francisco to San Juan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2026.
This Delta deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/267:00 am
SFO
- SJU
1 stop13h 35m
Delta
Tue 6/22:35 pm
SJU
- SFO
2 stops12h 42m
Delta
Deal found 4/12![Delta logo]()
$482
This Southwest deal was found by Cheapflights users on 4/16. 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.
Fri 5/87:15 pm
SFO
- SJU
2 stops10h 40m
Southwest
Tue 5/125:05 am
SJU
- SFO
2 stops17h 50m
Southwest
Deal found 4/16![Southwest logo]()
$540
This United Airlines deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” 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 4/245:00 am
SFO
- SJU
1 stop9h 38m
United Airlines
Mon 4/274:55 pm
SJU
- SFO
1 stop11h 22m
United Airlines
Deal found 4/12![United Airlines logo]()
$606
This Delta deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/26:15 am
SFO
- SJU
2 stops14h 20m
Delta
Mon 6/85:56 pm
SJU
- SFO
1 stop9h 49m
Delta
Deal found 4/17![Delta logo]()
$516
This Southwest deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/148:25 am
SFO
- SJU
2 stops12h 50m
Southwest
Mon 7/205:00 am
SJU
- SFO
2 stops11h 40m
Southwest
Deal found 4/14![Southwest logo]()
$555
This Delta deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/229:50 am
SFO
- SJU
2 stops10h 22m
Delta
Sat 4/256:15 am
SJU
- SFO
2 stops17h 36m
Delta
Deal found 4/15![Delta logo]()
$516
This Delta deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2411:59 pm
SFO
- SJU
2 stops13h 24m
Delta
Wed 4/292:03 pm
SJU
- SFO
2 stops12h 56m
Delta
Deal found 4/17![Delta logo]()
$516
This Southwest deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” 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 6/35:25 am
SFO
- SJU
2 stops12h 40m
Southwest
Thu 6/119:50 am
SJU
- SFO
2 stops11h 25m
Southwest
Deal found 4/12![Southwest logo]()
$636
This Southwest deal was found by Cheapflights users on 4/16. 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.
Fri 5/227:15 pm
SFO
- SJU
2 stops10h 40m
Southwest
Tue 5/265:05 am
SJU
- SFO
2 stops17h 50m
Southwest
Deal found 4/16![Southwest logo]()
$663
This Southwest deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” 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.
Fri 6/510:10 am
SFO
- SJU
2 stops12h 10m
Southwest
Wed 6/109:50 am
SJU
- SFO
2 stops12h 00m
Southwest
Deal found 4/13![Southwest logo]()
$664
This Delta deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” 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 7/911:56 pm
SFO
- SJU
1 stop9h 59m
Delta
Mon 7/132:05 pm
SJU
- SFO
2 stops12h 41m
Delta
Deal found 4/13![Delta logo]()
$704
Last-minute flights from San Francisco to San JuanDiscover last-minute flight deals from San Francisco to San Juan. Data last updated April 17, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to San Juan. Data last updated April 17, 2026 and is based on user searches.
This Priceline deal was found by Cheapflights users on 4/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/210:38 pm
SFO
- SJU
1 stop12h 30m
Multiple Airlines
Wed 5/67:40 am
SJU
- SFO
1 stop19h 11m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$398
This Kiwi.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/611:59 pm
SFO
- SJU
2 stops38h 17m
Multiple Airlines
Thu 5/142:37 pm
SJU
- SFO
1 stop11h 27m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$388
This Kiwi.com deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” 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 5/811:59 pm
SFO
- SJU
1 stop10h 33m
Multiple Airlines
Wed 5/136:41 pm
SJU
- SFO
2 stops32h 42m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$372
This Kiwi.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/811:59 pm
SFO
- SJU
1 stop10h 33m
Multiple Airlines
Fri 5/152:37 pm
SJU
- SFO
2 stops30h 25m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$390
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 5/911:59 pm
SFO
- SJU
1 stop10h 33m
Multiple Airlines
Wed 5/136:41 pm
SJU
- SFO
2 stops31h 23m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$399
This Kiwi.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/911:59 pm
SFO
- SJU
1 stop10h 33m
Multiple Airlines
Fri 5/152:09 am
SJU
- SFO
2 stops25h 14m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$400
This Kiwi.com deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/106:00 am
SFO
- SJU
2 stops38h 57m
Multiple Airlines
Sat 5/162:37 pm
SJU
- SFO
1 stop11h 27m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$391
This Kiwi.com deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1110:15 pm
SFO
- SJU
2 stops16h 11m
Multiple Airlines
Thu 5/142:37 pm
SJU
- SFO
1 stop11h 27m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$394
This Kiwi.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1711:59 pm
SFO
- SJU
1 stop10h 33m
Multiple Airlines
Thu 5/282:09 am
SJU
- SFO
2 stops25h 14m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$384
This Kiwi.com deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2312:52 pm
SFO
- SJU
2 stops49h 22m
Multiple Airlines
Fri 5/292:37 pm
SJU
- SFO
1 stop11h 27m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$386
This Kiwi.com deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” 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 5/3012:52 pm
SFO
- SJU
2 stops32h 49m
Frontier
Wed 6/106:25 am
SJU
- SFO
1 stop19h 37m
Frontier
Deal found 4/12![Frontier logo]()
$375
One-way flights from San Francisco to San JuanSearch for one-way flight options from San Francisco to San Juan. Find affordable one-way fares based on user searches. Data last updated April 17, 2026.
Search for one-way flight options from San Francisco to San Juan. Find affordable one-way fares based on user searches. Data last updated April 17, 2026.
This Frontier deal was found by Cheapflights users on 4/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/910:15 pm
SFO
- SJU
1 stop12h 52m
Frontier
Deal found 4/16![Frontier logo]()
$98
This deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/210:38 pm
SFO
- SJU
1 stop12h 30m
Frontier
Deal found 4/14![Frontier logo]()
$128
This Expedia deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/410:10 pm
SFO
- SJU
1 stop13h 05m
Frontier
Deal found 4/13![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 5/1611:59 pm
SFO
- SJU
2 stops44h 58m
Frontier
Deal found 4/16![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1912:52 pm
SFO
- SJU
2 stops22h 09m
Frontier
Deal found 4/15![Frontier logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 5/1611:59 pm
SFO
- SJU
1 stop10h 33m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$163
This CheapOair deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/38:44 pm
SFO
- SJU
1 stop26h 24m
Frontier
Deal found 4/14![Frontier logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 4/16. 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.
Wed 6/108:21 pm
SFO
- SJU
2 stops28h 36m
Frontier
Deal found 4/16![Frontier logo]()
$190
This Frontier deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/310:38 pm
SFO
- SJU
1 stop12h 35m
Frontier
Deal found 4/14![Frontier logo]()
$193
This Frontier deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:38 pm
SFO
- SJU
1 stop12h 59m
Frontier
Deal found 4/14![Frontier logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 4/16. 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.
Mon 6/18:48 pm
SFO
- SJU
2 stops28h 13m
Frontier
Deal found 4/16![Frontier logo]()
$198
Find flight deals from San Francisco to San Juan
Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to San Juan (PR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 17, 2026.
Round-trip from | $372 (Kiwi.com) |
|---|---|
One-way from | $98 (Frontier) |
Popular in | December |
Cheapest in | May |
Average price | $543 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Francisco to San Juan 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 April 17, 2026.
Use the filters below to find and compare flights from San Francisco to San Juan that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San FranciscoSan Juan
SFO - SJU
SFOSJU
San Francisco
Tue 5/26
7:00 am-11:35 pm
1 stop13h 35m
San Juan Luis Munoz Marin Intl
Tue 6/2
2:35 pm-12:17 am
2 stops12h 42m
$482
San FranciscoSan Juan
SFO - SJU
SFOSJU
San Francisco
Tue 6/2
6:15 am-11:35 pm
2 stops14h 20m
San Juan Luis Munoz Marin Intl
Mon 6/8
5:56 pm-12:45 am
1 stop9h 49m
$516
San FranciscoSan Juan
SFO - SJU
SFOSJU
San Francisco
Wed 4/22
9:50 am-11:12 pm
2 stops10h 22m
San Juan Luis Munoz Marin Intl
Sat 4/25
6:15 am-8:51 pm
2 stops17h 36m
$516
San FranciscoSan Juan
SFO - SJU
SFOSJU
San Francisco
Fri 4/24
11:59 pm-4:23 pm
2 stops13h 24m
San Juan Luis Munoz Marin Intl
Wed 4/29
2:03 pm-11:59 pm
2 stops12h 56m
$516
San FranciscoSan Juan
SFO - SJU
SFOSJU
San Francisco
Fri 5/8
7:15 pm-8:55 am
2 stops10h 40m
San Juan Luis Munoz Marin Intl
Tue 5/12
5:05 am-7:55 pm
2 stops17h 50m
$540
San FranciscoSan Juan
SFO - SJU
SFOSJU
San Francisco
Tue 7/14
8:25 am-12:15 am
2 stops12h 50m
San Juan Luis Munoz Marin Intl
Mon 7/20
5:00 am-1:40 pm
2 stops11h 40m
$555
Quickest round-trip
San FranciscoSan Juan
SFO - SJU
SFOSJU
San Francisco
Fri 4/24
5:00 am-5:38 pm
1 stop9h 38m
San Juan Luis Munoz Marin Intl
Mon 4/27
4:55 pm-1:17 am
1 stop11h 22m
$606
San FranciscoSan Juan
SFO - SJU
SFOSJU
San Francisco
Wed 6/3
5:25 am-9:05 pm
2 stops12h 40m
San Juan Luis Munoz Marin Intl
Thu 6/11
9:50 am-6:15 pm
2 stops11h 25m
$636
San FranciscoSan Juan
SFO - SJU
SFOSJU
San Francisco
Fri 5/22
7:15 pm-8:55 am
2 stops10h 40m
San Juan Luis Munoz Marin Intl
Tue 5/26
5:05 am-7:55 pm
2 stops17h 50m
$663
San FranciscoSan Juan
SFO - SJU
SFOSJU
San Francisco
Fri 6/5
10:10 am-1:20 am
2 stops12h 10m
San Juan Luis Munoz Marin Intl
Wed 6/10
9:50 am-6:50 pm
2 stops12h 00m
$664
Showing 1-10 of 20 resultsSorted by cheapest first
Best time to book a flight from San Francisco to San Juan
Have a flexible travel schedule? Discover the best time to fly to San Juan from San Francisco with our price prediction graph.
SFO-PR1
SFO-SJU
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 San Juan
SFO-PR1
SFO-SJU
How far ahead should I book a flight from San Francisco to San Juan?
Use this chart to determine the optimal time to book a round-trip flight from San Francisco to San Juan. Price data was last updated on April 10, 2026.
The best time to book flights from San Francisco to San Juan is 73 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from San Francisco to San Juan?
Currently, April is the cheapest month in which you can book a flight from San Francisco to San Juan (average of $122). Flying from San Francisco to San Juan in February is currently the most expensive (average of $263). 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 much does it cost to fly round-trip from San Francisco to San Juan?
Reviews of airlines servicing San Juan
Get insights into the airlines that provide service to San Juan. 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 Juan. Reviews last updated April 17, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andJetBlue from San Francisco to San Juan to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.9
Food
7.2
Boarding
8.1
Overall
7.9
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Food
7.2
Boarding
8.1
Overall
7.9
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Food
7.2
Boarding
8.1
Overall
7.9
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Food
7.2
Boarding
8.1
Overall
7.9
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Food
7.2
Boarding
8.1
Overall
7.9
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Food
7.2
Boarding
8.1
Overall
7.9
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Related info for your journey
Find useful and relevant information for your journey from San Francisco to San Juan. 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 San Juan
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Complete your trip
Complete your trip to San Juan by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from San Francisco to San Juan by cabin class
Find flights from San Francisco to San Juan, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Francisco and San Juan flights
Browse other San Francisco and San Juan flight options. Last updated on April 17, 2026.
Other flights from San Francisco
Browse through other flights departing from San Francisco. Flights are based on user searches made on Cheapflights and were last updated on April 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 8 airlines flying from San Francisco to San Juan
Discover the top 8 airlines that operate flights from San Francisco to San Juan. 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 April 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$135 | Average$361 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$172 | Average$412 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$222 | Average$834 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$273 | Average$404 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$329 | Average$428 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$358 | Average$530 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$359 | Average$554 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$412 | Average$593 | FlexibilityNo cancel fee | On-time63% |