$138+ 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 9/13. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SJU
Sep 12 — Sep 191
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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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 San Juan
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Best
Last-minute
One-way
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 August 13, 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 August 13, 2026.
This Southwest deal was found by Cheapflights users on 8/12. 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.
Mon 8/317:55 pm -
2 stops12h 05m
Sat 9/58:20 am -
2 stops13h 05m
Deal found 8/12![Southwest logo]()
$462
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 8/2612:29 am -
2 stops21h 14m
Tue 9/15:25 pm -
1 stop28h 38m
Deal found 8/11![Frontier logo]()
$463
This Southwest deal was found by Cheapflights users on 8/12. 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 11/114:55 pm -
2 stops13h 35m
Tue 11/177:40 am -
2 stops12h 10m
Deal found 8/12![Southwest logo]()
$464
This Frontier deal was found by Cheapflights users on 8/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/210:35 pm -
1 stop12h 41m
Wed 9/96:30 am -
1 stop16h 38m
Deal found 8/9![Frontier logo]()
$466
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 9/610:35 pm -
1 stop12h 41m
Fri 9/1110:42 am -
2 stops13h 45m
Deal found 8/9![Frontier logo]()
$467
This Kiwi.com deal was found by Cheapflights users on 8/9. 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.
Tue 8/1810:35 pm -
1 stop12h 41m
Wed 8/267:30 am -
2 stops38h 33m
Deal found 8/9![Frontier logo]()
$468
This CheapOair deal was found by Cheapflights users on 8/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2710:35 pm -
1 stop12h 41m
Tue 9/11:48 pm -
1 stop13h 03m
Deal found 8/9![Multiple Airlines logo]()
$469
This Expedia deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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 8/2910:35 pm -
1 stop12h 41m
Fri 9/411:00 am -
1 stop15h 51m
Deal found 8/10![Multiple Airlines logo]()
$470
This CheapOair deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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.
Sun 10/410:05 pm -
1 stop14h 14m
Tue 10/134:30 pm -
1 stop10h 37m
Deal found 8/10![Multiple Airlines logo]()
$472
This CheapOair deal was found by Cheapflights users on 8/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/310:35 pm -
1 stop12h 41m
Sat 9/122:32 pm -
1 stop11h 45m
Deal found 8/9![Multiple Airlines logo]()
$473
This Priceline deal was found by Cheapflights users on 8/8. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3010:35 pm -
1 stop12h 41m
Sun 9/69:42 am -
1 stop17h 09m
Deal found 8/8![Multiple Airlines logo]()
$474
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 August 13, 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 August 13, 2026.
This JetBlue deal was found by Cheapflights users on 8/8. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/298:29 pm -
1 stop14h 10m
Sat 10/34:29 pm -
1 stop9h 48m
Deal found 8/8![JetBlue logo]()
$506
This Delta deal was found by Cheapflights users on 8/8. 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.
Tue 11/176:00 am -
2 stops13h 13m
Wed 1/277:30 am -
2 stops15h 06m
Deal found 8/8![Delta logo]()
$510
This Southwest deal was found by Cheapflights users on 8/12. 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.
Tue 1/197:20 am -
2 stops10h 40m
Sun 1/317:05 am -
2 stops14h 45m
Deal found 8/12![Southwest logo]()
$526
This Delta deal was found by Cheapflights users on 8/12. 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.
Fri 1/86:00 am -
1 stop11h 00m
Fri 1/157:00 am -
1 stop15h 52m
Deal found 8/12![Delta logo]()
$510
This Southwest deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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 8/281:55 pm -
2 stops16h 30m
Sat 9/58:20 am -
2 stops13h 05m
Deal found 8/10![Southwest logo]()
$540
This Delta deal was found by Cheapflights users on 8/12. 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.
Wed 10/218:00 am -
1 stop11h 18m
Sat 10/317:15 am -
2 stops16h 24m
Deal found 8/12![Delta logo]()
$530
This Southwest deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 10/105:00 am -
2 stops13h 30m
Tue 10/136:35 am -
2 stops12h 30m
Deal found 8/11![Southwest logo]()
$564
This Delta deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 1/1312:40 am -
1 stop11h 30m
Sat 1/236:15 am -
1 stop14h 56m
Deal found 8/11![Delta logo]()
$551
This Southwest deal was found by Cheapflights users on 8/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1411:35 pm -
2 stops13h 25m
Wed 12/234:15 pm -
2 stops11h 40m
Deal found 8/8![Southwest logo]()
$628
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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 1/236:15 am -
2 stops13h 40m
Mon 2/16:15 am -
2 stops16h 21m
Deal found 8/10![Delta logo]()
$592
Last-minute flights from San Francisco to San JuanDiscover last-minute flight deals from San Francisco to San Juan. Data last updated August 13, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to San Juan. Data last updated August 13, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/9. 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.
Tue 8/1810:35 pm -
1 stop12h 41m
Wed 8/267:30 am -
2 stops38h 33m
Deal found 8/9![Frontier logo]()
$468
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 8/2210:35 pm -
1 stop12h 41m
Mon 8/317:30 am -
2 stops31h 42m
Deal found 8/12![Frontier logo]()
$475
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 8/2612:29 am -
2 stops21h 14m
Tue 9/15:25 pm -
1 stop28h 38m
Deal found 8/11![Frontier logo]()
$463
This CheapOair deal was found by Cheapflights users on 8/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2710:35 pm -
1 stop12h 41m
Tue 9/11:48 pm -
1 stop13h 03m
Deal found 8/9![Multiple Airlines logo]()
$469
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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 8/2810:35 pm -
1 stop12h 41m
Sat 9/56:44 am -
2 stops44h 34m
Deal found 8/10![Frontier logo]()
$464
This Expedia deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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 8/2910:35 pm -
1 stop12h 41m
Fri 9/411:00 am -
1 stop15h 51m
Deal found 8/10![Multiple Airlines logo]()
$470
This Priceline deal was found by Cheapflights users on 8/8. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3010:35 pm -
1 stop12h 41m
Sun 9/69:42 am -
1 stop17h 09m
Deal found 8/8![Multiple Airlines logo]()
$474
This Southwest deal was found by Cheapflights users on 8/12. 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.
Mon 8/317:55 pm -
2 stops12h 05m
Sat 9/58:20 am -
2 stops13h 05m
Deal found 8/12![Southwest logo]()
$462
This Frontier deal was found by Cheapflights users on 8/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/210:35 pm -
1 stop12h 41m
Wed 9/96:30 am -
1 stop16h 38m
Deal found 8/9![Frontier logo]()
$466
This CheapOair deal was found by Cheapflights users on 8/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/310:35 pm -
1 stop12h 41m
Sat 9/122:32 pm -
1 stop11h 45m
Deal found 8/9![Multiple Airlines logo]()
$473
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 9/610:35 pm -
1 stop12h 41m
Fri 9/1110:42 am -
2 stops13h 45m
Deal found 8/9![Frontier logo]()
$467
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 August 13, 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 August 13, 2026.
This Frontier deal was found by Cheapflights users on 8/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1310:05 pm -
1 stop14h 14m
Deal found 8/12![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
Mon 10/191:02 pm -
2 stops17h 16m
Deal found 8/12![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 11/1610:48 pm -
2 stops16h 31m
Deal found 8/11![Frontier logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 8/9. 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.
Tue 11/1710:48 pm -
2 stops21h 50m
Deal found 8/9![Frontier logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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 9/1711:42 am -
2 stops35h 31m
Deal found 8/10![Frontier logo]()
$176
This Kiwi.com deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/114:34 pm -
2 stops38h 44m
Deal found 8/9![Frontier logo]()
$177
This Frontier deal was found by Cheapflights users on 8/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1310:48 pm -
1 stop12h 58m
Deal found 8/9![Frontier logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 10/1510:48 pm -
2 stops21h 50m
Deal found 8/11![Frontier logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/1010:05 pm -
2 stops25h 08m
Deal found 8/11![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/66:00 am -
2 stops39h 43m
Deal found 8/11![Frontier logo]()
$187
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 August 13, 2026.
Round-trip from | $462 (Southwest) |
|---|---|
One-way from | $138 (Frontier) |
Popular in | July |
Cheapest in | September |
Average price | $507 |
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 August 13, 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
Quickest round-trip
San FranciscoSan Juan
SFO San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Tue 9/29
8:29 pm-1:39 pm
1 stop14h 10m
San Juan Luis Munoz Marin Intl
Sat 10/3
4:29 pm-11:17 pm
1 stop9h 48m
$506
San FranciscoSan Juan
SFO San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Tue 11/17
6:00 am-11:13 pm
2 stops13h 13m
San Juan Luis Munoz Marin Intl
Wed 1/27
7:30 am-6:36 pm
2 stops15h 06m
$510
San FranciscoSan Juan
SFO San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Fri 1/8
6:00 am-9:00 pm
1 stop11h 00m
San Juan Luis Munoz Marin Intl
Fri 1/15
7:00 am-6:52 pm
1 stop15h 52m
$510
San FranciscoSan Juan
SFO San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Tue 1/19
7:20 am-10:00 pm
2 stops10h 40m
San Juan Luis Munoz Marin Intl
Sun 1/31
7:05 am-5:50 pm
2 stops14h 45m
$526
San FranciscoSan Juan
SFO San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Wed 10/21
8:00 am-10:18 pm
1 stop11h 18m
San Juan Luis Munoz Marin Intl
Sat 10/31
7:15 am-8:39 pm
2 stops16h 24m
$530
San FranciscoSan Juan
SFO San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Fri 8/28
1:55 pm-9:25 am
2 stops16h 30m
San Juan Luis Munoz Marin Intl
Sat 9/5
8:20 am-6:25 pm
2 stops13h 05m
$540
San FranciscoSan Juan
SFO San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Wed 1/13
12:40 am-4:10 pm
1 stop11h 30m
San Juan Luis Munoz Marin Intl
Sat 1/23
6:15 am-5:11 pm
1 stop14h 56m
$551
San FranciscoSan Juan
SFO San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Sat 10/10
5:00 am-9:30 pm
2 stops13h 30m
San Juan Luis Munoz Marin Intl
Tue 10/13
6:35 am-4:05 pm
2 stops12h 30m
$564
San FranciscoSan Juan
SFO San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Sat 1/23
6:15 am-11:55 pm
2 stops13h 40m
San Juan Luis Munoz Marin Intl
Mon 2/1
6:15 am-6:36 pm
2 stops16h 21m
$592
San FranciscoSan Juan
SFO San Francisco - SJU San Juan Luis Munoz Marin Intl
SFOSJU
San Francisco
Mon 12/14
11:35 pm-5:00 pm
2 stops13h 25m
San Juan Luis Munoz Marin Intl
Wed 12/23
4:15 pm-11:55 pm
2 stops11h 40m
$628
Showing 1-10 of 19 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, September is the cheapest month in which you can book a flight from San Francisco to San Juan (average of $470). Flying from San Francisco to San Juan in July is currently the most expensive (average of $643). 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 $466 and $680 in August.The cheapest round-trip price found within the last 5 days was $462 on Southwest (Aug 31-Sep 5).
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 81 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 August 13, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andAmerican Airlines 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
Boarding
8.1
Overall
7.8
Crew
8.5
Comfort
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Food
7.2
Boarding
8.1
Overall
7.8
Crew
8.5
Comfort
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Food
7.2
Boarding
8.1
Overall
7.8
Crew
8.5
Comfort
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Food
7.2
Boarding
8.1
Overall
7.8
Crew
8.5
Comfort
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Food
7.2
Boarding
8.1
Overall
7.8
Crew
8.5
Comfort
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Food
7.2
Boarding
8.1
Overall
7.8
Crew
8.5
Comfort
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Related info for your journey
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San Francisco and San Juan flights
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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 August 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$122 | Average$419 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$204 | Average$480 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$222 | Average$748 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$289 | Average$415 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$351 | Average$736 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$353 | Average$554 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$369 | Average$605 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$406 | Average$580 | FlexibilityNo cancel fee | On-time63% |