$145+ Cheap flights from San Francisco (SFO) to San Juan
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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SJU
Dec 9 — Dec 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 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 November 9, 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 November 9, 2026.
This Mytrip deal was found by Cheapflights users on 11/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/106:30 am -
2 stops15h 28m
Sat 12/122:49 am -
2 stops16h 49m
Deal found 11/4![Frontier logo]()
$490
This Justfly.com deal was found by Cheapflights users on 11/5. 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.
Mon 11/3010:20 pm -
1 stop18h 35m
Mon 12/75:01 am -
1 stop14h 37m
Deal found 11/5![Multiple Airlines logo]()
$492
This FlightHub deal was found by Cheapflights users on 11/4. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2510:35 pm -
1 stop30h 58m
Wed 12/95:01 am -
1 stop14h 37m
Deal found 11/4![Multiple Airlines logo]()
$498
This Mytrip deal was found by Cheapflights users on 11/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/111:00 pm -
2 stops22h 58m
Sat 12/129:52 pm -
2 stops21h 46m
Deal found 11/8![Frontier logo]()
$500
This CheapOair deal was found by Cheapflights users on 11/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/307:30 am -
1 stop14h 51m
Mon 1/1110:15 pm -
1 stop15h 08m
Deal found 11/4![JetBlue logo]()
$501
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Fri 12/411:06 pm -
1 stop22h 01m
Fri 12/118:44 pm -
2 stops20h 43m
Deal found 11/5![Frontier logo]()
$502
This Priceline deal was found by Cheapflights users on 11/6. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/41:10 pm -
1 stop16h 38m
Sun 12/65:01 am -
1 stop14h 37m
Deal found 11/6![Multiple Airlines logo]()
$503
This Kiwi.com deal was found by Cheapflights users on 11/8. 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.
Mon 11/2311:26 pm -
1 stop22h 10m
Thu 12/35:01 am -
1 stop14h 33m
Deal found 11/8![Frontier logo]()
$506
This Kiwi.com deal was found by Cheapflights users on 11/9. 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.
Sun 11/2211:26 pm -
1 stop22h 10m
Fri 12/45:01 am -
1 stop14h 33m
Deal found 11/9![Frontier logo]()
$507
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 12/511:14 pm -
2 stops22h 44m
Fri 12/115:01 am -
1 stop14h 37m
Deal found 11/8![Frontier logo]()
$508
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Tue 11/1710:20 pm -
1 stop22h 39m
Tue 11/2410:21 pm -
2 stops45h 27m
Deal found 11/5![Frontier logo]()
$509
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 November 9, 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 November 9, 2026.
This JetBlue deal was found by Cheapflights users on 11/5. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/118:00 am -
1 stop11h 56m
Thu 1/1410:43 am -
1 stop15h 42m
Deal found 11/5![JetBlue logo]()
$553
This Southwest deal was found by Cheapflights users on 11/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/209:25 am -
2 stops11h 15m
Wed 1/275:35 am -
2 stops12h 40m
Deal found 11/5![Southwest logo]()
$556
This Delta deal was found by Cheapflights users on 11/8. 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.
Wed 2/38:00 am -
1 stop11h 58m
Thu 2/185:15 pm -
1 stop10h 49m
Deal found 11/8![Delta logo]()
$566
This United Airlines deal was found by Cheapflights users on 11/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1210:50 pm -
2 stops15h 35m
Tue 12/157:40 am -
2 stops17h 46m
Deal found 11/6![United Airlines logo]()
$591
This Delta deal was found by Cheapflights users on 11/8. 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.
Sun 2/216:00 am -
1 stop13h 50m
Thu 3/45:15 pm -
1 stop10h 49m
Deal found 11/8![Delta logo]()
$566
This Delta deal was found by Cheapflights users on 11/8. 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 2/49:00 am -
1 stop11h 58m
Thu 2/183:20 pm -
1 stop12h 44m
Deal found 11/8![Delta logo]()
$588
This United Airlines deal was found by Cheapflights users on 11/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/255:00 am -
1 stop12h 00m
Sat 2/272:05 am -
1 stop12h 28m
Deal found 11/8![United Airlines logo]()
$664
This Southwest deal was found by Cheapflights users on 11/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/214:35 pm -
2 stops13h 55m
Thu 11/265:35 am -
2 stops14h 05m
Deal found 11/4![Southwest logo]()
$682
This United Airlines deal was found by Cheapflights users on 11/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:41 pm -
2 stops13h 09m
Thu 12/101:00 pm -
2 stops13h 58m
Deal found 11/6![United Airlines logo]()
$668
This Delta deal was found by Cheapflights users on 11/7. 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.
Sat 1/236:00 am -
2 stops14h 58m
Mon 2/17:17 am -
2 stops14h 21m
Deal found 11/7![Delta logo]()
$610
This Delta deal was found by Cheapflights users on 11/6. 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.
Thu 1/216:00 am -
2 stops13h 58m
Sat 1/306:30 am -
1 stop14h 54m
Deal found 11/6![Delta logo]()
$610
This Delta deal was found by Cheapflights users on 11/5. 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.
Thu 1/216:00 am -
2 stops13h 58m
Sun 2/76:30 am -
2 stops18h 30m
Deal found 11/5![Delta logo]()
$655
Last-minute flights from San Francisco to San JuanDiscover last-minute flight deals from San Francisco to San Juan. Data last updated November 9, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to San Juan. Data last updated November 9, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Tue 11/1710:20 pm -
1 stop22h 39m
Tue 11/2410:21 pm -
2 stops45h 27m
Deal found 11/5![Frontier logo]()
$509
This Kiwi.com deal was found by Cheapflights users on 11/9. 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.
Sun 11/2211:26 pm -
1 stop22h 10m
Fri 12/45:01 am -
1 stop14h 33m
Deal found 11/9![Frontier logo]()
$507
This Kiwi.com deal was found by Cheapflights users on 11/8. 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.
Mon 11/2311:26 pm -
1 stop22h 10m
Thu 12/35:01 am -
1 stop14h 33m
Deal found 11/8![Frontier logo]()
$506
This FlightHub deal was found by Cheapflights users on 11/4. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2510:35 pm -
1 stop30h 58m
Wed 12/95:01 am -
1 stop14h 37m
Deal found 11/4![Multiple Airlines logo]()
$498
This Justfly.com deal was found by Cheapflights users on 11/5. 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.
Mon 11/3010:20 pm -
1 stop18h 35m
Mon 12/75:01 am -
1 stop14h 37m
Deal found 11/5![Multiple Airlines logo]()
$492
This Mytrip deal was found by Cheapflights users on 11/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/111:00 pm -
2 stops22h 58m
Sat 12/129:52 pm -
2 stops21h 46m
Deal found 11/8![Frontier logo]()
$500
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Fri 12/411:06 pm -
1 stop22h 01m
Fri 12/118:44 pm -
2 stops20h 43m
Deal found 11/5![Frontier logo]()
$502
This Priceline deal was found by Cheapflights users on 11/6. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/41:10 pm -
1 stop16h 38m
Sun 12/65:01 am -
1 stop14h 37m
Deal found 11/6![Multiple Airlines logo]()
$503
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 12/511:14 pm -
2 stops22h 44m
Fri 12/115:01 am -
1 stop14h 37m
Deal found 11/8![Frontier logo]()
$508
This Mytrip deal was found by Cheapflights users on 11/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/106:30 am -
2 stops15h 28m
Sat 12/122:49 am -
2 stops16h 49m
Deal found 11/4![Frontier logo]()
$490
This CheapOair deal was found by Cheapflights users on 11/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/307:30 am -
1 stop14h 51m
Mon 1/1110:15 pm -
1 stop15h 08m
Deal found 11/4![JetBlue logo]()
$501
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 November 9, 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 November 9, 2026.
This Mytrip deal was found by Cheapflights users on 11/5. 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.
Tue 12/810:29 am -
2 stops20h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Tue 12/2910:21 pm -
2 stops27h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Frontier logo]()
$146
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 12/305:39 pm -
2 stops32h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Frontier logo]()
$149
This Mytrip deal was found by Cheapflights users on 11/5. 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.
Sat 12/125:17 pm -
2 stops28h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Frontier logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Sat 12/58:32 pm -
2 stops46h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Sat 2/66:30 pm -
2 stops16h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Frontier logo]()
$155
This Trip.com deal was found by Cheapflights users on 11/4. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/165:36 pm -
2 stops14h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/911:25 am -
2 stops34h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 11/7. 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.
Wed 2/249:44 am -
2 stops35h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![Frontier logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/22:21 pm -
2 stops16h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$194
This Super.com deal was found by Cheapflights users on 11/8. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1311:14 pm -
1 stop10h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![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 November 9, 2026.
Round-trip from | $489 (Kiwi.com) |
|---|---|
One-way from | $145 (Mytrip) |
Popular in | December |
Cheapest in | January |
Average price | $602 |
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 7,457,451 searches. Data last updated November 9, 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 San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Thu 12/3
10:35 am-11:28 pm
2 stops32h 53m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$243
San FranciscoSan Juan
SFO San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Wed 1/20
9:25 am-12:35 am
2 stops11h 10m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$278
San FranciscoSan Juan
SFO San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Thu 2/4
11:03 am-1:54 am
1 stop10h 51m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$282
San FranciscoSan Juan
SFO San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Fri 2/5
10:54 pm-1:15 pm
1 stop10h 21m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$282
San FranciscoSan Juan
SFO San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Fri 2/19
9:35 pm-11:50 am
1 stop10h 15m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$282
Quickest round-trip
San FranciscoSan Juan
SFO San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Sat 12/12
9:35 pm-10:44 am
1 stop9h 09m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$286
San FranciscoSan Juan
SFO San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Wed 12/2
8:00 am-12:50 am
2 stops12h 50m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$286
San FranciscoSan Juan
SFO San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Sat 1/16
6:00 am-11:20 pm
2 stops13h 20m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$300
San FranciscoSan Juan
SFO San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Fri 5/7
7:40 pm-11:00 am
2 stops12h 20m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$300
San FranciscoSan Juan
SFO San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Thu 12/3
6:00 am-10:22 pm
1 stop12h 22m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$305
Showing 1-10 of 24 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
What is the cheapest month to book a flight from San Francisco to San Juan?
Currently, January is the cheapest month in which you can book a flight from San Francisco to San Juan (average of $503). Flying from San Francisco to San Juan in December is currently the most expensive (average of $825). 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?
Airfare is below average for this route at the moment.
San Francisco to San Juan flights typically cost between $541 and $714 in November.The cheapest round-trip price found within the last 5 days was $492 on Multiple Airlines (Nov 30-Dec 7).
How far ahead should I book a flight from San Francisco to San Juan?
The best time to book flights from San Francisco to San Juan is 75 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 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 November 9, 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.
Food
7.2
Crew
8.5
Boarding
8.1
Overall
7.8
Comfort
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Food
7.2
Crew
8.5
Boarding
8.1
Overall
7.8
Comfort
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Food
7.2
Crew
8.5
Boarding
8.1
Overall
7.8
Comfort
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Food
7.2
Crew
8.5
Boarding
8.1
Overall
7.8
Comfort
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Food
7.2
Crew
8.5
Boarding
8.1
Overall
7.8
Comfort
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Food
7.2
Crew
8.5
Boarding
8.1
Overall
7.8
Comfort
7.8
Entertainment
7.8
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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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 November 9, 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 November 9, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 7 airlines flying from San Francisco to San Juan
Discover the top 7 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 7,457,451 searches. Data last updated November 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$122 | Average$408 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$242 | Average$511 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$289 | Average$437 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$346 | Average$595 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$351 | Average$766 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$375 | Average$648 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$414 | Average$593 | FlexibilityNo cancel fee | On-time63% |