$141+ Cheap flights from San Diego (SAN) 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 3/30. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SJU
Mar 16 — Mar 231
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from San Diego 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
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 Diego to San Juan
Cheapest
Best
Last-minute
One-way
Cheapest flights from San Diego to San JuanExplore the most affordable flight options available from San Diego to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 14, 2026.
Explore the most affordable flight options available from San Diego to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 14, 2026.
This United Airlines deal was found by Cheapflights users on 2/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/255:00 pm
SAN
- SJU
1 stop9h 29m
United Airlines
Fri 5/291:00 am
SJU
- SAN
1 stop11h 21m
United Airlines
Deal found 2/10![United Airlines logo]()
$341
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Tue 4/2811:42 am
SAN
- SJU
2 stops26h 48m
Multiple Airlines
Sun 5/106:49 pm
SJU
- SAN
1 stop32h 22m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$343
This Kiwi.com deal was found by Cheapflights users on 2/9. 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.
Wed 4/86:25 am
SAN
- SJU
2 stops15h 27m
Multiple Airlines
Sat 4/186:49 pm
SJU
- SAN
1 stop32h 22m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$348
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 5/712:36 pm
SAN
- SJU
2 stops22h 32m
Multiple Airlines
Sun 5/106:49 pm
SJU
- SAN
1 stop32h 22m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$350
This Kiwi.com deal was found by Cheapflights users on 2/12. 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.
Wed 4/222:47 pm
SAN
- SJU
2 stops23h 43m
Multiple Airlines
Wed 4/296:49 pm
SJU
- SAN
1 stop32h 22m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$354
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Sun 3/296:55 am
SAN
- SJU
1 stop25h 12m
Multiple Airlines
Tue 4/76:30 am
SJU
- SAN
2 stops44h 32m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$359
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 4/166:55 am
SAN
- SJU
1 stop25h 32m
Multiple Airlines
Sun 4/192:15 am
SJU
- SAN
2 stops18h 25m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$360
This United Airlines deal was found by Cheapflights users on 2/12. 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.
Mon 5/259:05 pm
SAN
- SJU
1 stop11h 59m
United Airlines
Thu 5/282:55 pm
SJU
- SAN
2 stops11h 59m
United Airlines
Deal found 2/12![United Airlines logo]()
$361
This American Airlines deal was found by Cheapflights users on 2/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:30 pm
SAN
- SJU
2 stops12h 39m
American Airlines
Sat 9/122:25 pm
SJU
- SAN
1 stop11h 09m
American Airlines
Deal found 2/10![American Airlines logo]()
$364
This American Airlines deal was found by Cheapflights users on 2/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:15 am
SAN
- SJU
1 stop12h 47m
American Airlines
Sat 5/97:25 am
SJU
- SAN
1 stop16h 27m
American Airlines
Deal found 2/11![American Airlines logo]()
$365
Best flights from San Diego to San JuanDiscover carefully curated flight deals from San Diego to San Juan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 14, 2026.
Discover carefully curated flight deals from San Diego to San Juan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 14, 2026.
This Southwest deal was found by Cheapflights users on 2/11. 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.
Wed 5/136:20 am
SAN
- SJU
1 stop13h 20m
Southwest
Mon 5/186:50 am
SJU
- SAN
1 stop16h 20m
Southwest
Deal found 2/11![Southwest logo]()
$402
This United Airlines deal was found by Cheapflights users on 2/12. 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.
Tue 4/76:20 am
SAN
- SJU
2 stops11h 18m
United Airlines
Mon 4/201:00 am
SJU
- SAN
2 stops13h 25m
United Airlines
Deal found 2/12![United Airlines logo]()
$407
This JetBlue deal was found by Cheapflights users on 2/10. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/412:49 pm
SAN
- SJU
1 stop11h 02m
JetBlue
Thu 3/1210:45 am
SJU
- SAN
1 stop12h 07m
JetBlue
Deal found 2/10![JetBlue logo]()
$418
This United Airlines deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:10 pm
SAN
- SJU
2 stops16h 30m
United Airlines
Tue 3/32:05 am
SJU
- SAN
2 stops16h 44m
United Airlines
Deal found 2/9![United Airlines logo]()
$411
This Southwest deal was found by Cheapflights users on 2/11. 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.
Mon 3/163:25 pm
SAN
- SJU
2 stops14h 55m
Southwest
Wed 3/186:40 am
SJU
- SAN
1 stop15h 45m
Southwest
Deal found 2/11![Southwest logo]()
$413
This United Airlines deal was found by Cheapflights users on 2/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/226:20 am
SAN
- SJU
2 stops14h 30m
United Airlines
Tue 4/281:00 am
SJU
- SAN
1 stop11h 40m
United Airlines
Deal found 2/11![United Airlines logo]()
$416
This Southwest deal was found by Cheapflights users on 2/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/318:35 am
SAN
- SJU
1 stop10h 40m
Southwest
Sat 4/112:25 pm
SJU
- SAN
1 stop10h 00m
Southwest
Deal found 2/9![Southwest logo]()
$420
This United Airlines deal was found by Cheapflights users on 2/12. 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.
Sat 5/26:20 am
SAN
- SJU
2 stops11h 18m
United Airlines
Tue 5/57:40 am
SJU
- SAN
2 stops16h 32m
United Airlines
Deal found 2/12![United Airlines logo]()
$416
This Southwest deal was found by Cheapflights users on 2/10. 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.
Tue 3/176:20 am
SAN
- SJU
1 stop13h 40m
Southwest
Tue 3/316:40 am
SJU
- SAN
1 stop15h 45m
Southwest
Deal found 2/10![Southwest logo]()
$421
This Southwest deal was found by Cheapflights users on 2/13. 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.
Wed 4/227:35 pm
SAN
- SJU
2 stops10h 35m
Southwest
Wed 4/2911:25 am
SJU
- SAN
2 stops13h 05m
Southwest
Deal found 2/13![Southwest logo]()
$437
Last-minute flights from San Diego to San JuanDiscover last-minute flight deals from San Diego to San Juan. Data last updated February 14, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to San Juan. Data last updated February 14, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 2/177:11 am
SAN
- SJU
2 stops39h 42m
Multiple Airlines
Thu 4/306:49 pm
SJU
- SAN
1 stop32h 22m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$377
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 2/208:35 am
SAN
- SJU
2 stops38h 18m
Multiple Airlines
Sat 4/186:49 pm
SJU
- SAN
1 stop32h 22m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$375
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Sat 2/2812:23 pm
SAN
- SJU
2 stops23h 17m
Multiple Airlines
Tue 3/37:44 pm
SJU
- SAN
1 stop26h 07m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$381
This eDestinos deal was found by Cheapflights users on 2/12. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/37:35 am
SAN
- SJU
1 stop30h 23m
Multiple Airlines
Tue 3/106:39 pm
SJU
- SAN
2 stops29h 35m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$372
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Mon 3/96:55 am
SAN
- SJU
1 stop24h 42m
Multiple Airlines
Sun 3/156:30 am
SJU
- SAN
2 stops40h 53m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$388
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Sun 3/296:55 am
SAN
- SJU
1 stop25h 12m
Multiple Airlines
Tue 4/76:30 am
SJU
- SAN
2 stops44h 32m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$359
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 3/296:55 am
SAN
- SJU
1 stop25h 12m
Multiple Airlines
Thu 4/26:07 pm
SJU
- SAN
2 stops32h 55m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$380
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Sun 3/296:55 am
SAN
- SJU
1 stop25h 12m
Multiple Airlines
Fri 4/33:16 am
SJU
- SAN
2 stops23h 46m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$382
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Sun 3/296:55 am
SAN
- SJU
1 stop25h 12m
Multiple Airlines
Sun 4/53:16 am
SJU
- SAN
2 stops47h 46m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$383
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Mon 3/306:25 am
SAN
- SJU
1 stop25h 42m
Multiple Airlines
Tue 4/76:30 am
SJU
- SAN
2 stops44h 32m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$376
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 3/316:25 am
SAN
- SJU
2 stops25h 28m
Multiple Airlines
Sat 4/116:55 pm
SJU
- SAN
1 stop31h 31m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$374
One-way flights from San Diego to San JuanSearch for one-way flight options from San Diego to San Juan. Find affordable one-way fares based on user searches. Data last updated February 14, 2026.
Search for one-way flight options from San Diego to San Juan. Find affordable one-way fares based on user searches. Data last updated February 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 3/309:18 pm
SAN
- SJU
2 stops24h 39m
Frontier
Deal found 2/11![Frontier logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Mon 3/309:18 pm
SAN
- SJU
3 stops47h 40m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 3/86:55 am
SAN
- SJU
2 stops35h 08m
Frontier
Deal found 2/11![Frontier logo]()
$149
This Delta deal was found by Cheapflights users on 2/11. 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.
Fri 4/1010:30 pm
SAN
- SJU
1 stop10h 17m
Delta
Deal found 2/11![Delta logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 3/159:18 pm
SAN
- SJU
2 stops48h 11m
Frontier
Deal found 2/11![Frontier logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 3/159:18 pm
SAN
- SJU
3 stops47h 40m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 2/12. 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.
Sun 3/296:55 am
SAN
- SJU
2 stops38h 03m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 2/12. 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.
Thu 4/98:47 am
SAN
- SJU
2 stops37h 14m
Frontier
Deal found 2/12![Frontier logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 3/86:55 am
SAN
- SJU
3 stops30h 37m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Fri 2/276:25 am
SAN
- SJU
2 stops23h 59m
Frontier
Deal found 2/11![Frontier logo]()
$173
Find flight deals from San Diego to San Juan
Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) 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 February 14, 2026.
Round-trip from | $341 (United Airlines) |
|---|---|
One-way from | $141 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $566 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Diego 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 February 14, 2026.
Use the filters below to find and compare flights from San Diego to San Juan that are best for you.
Fly from
San Diego
Fly to
San Juan
Route
Depart
Return
Price
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Wed 5/13
6:20 am-10:40 pm
1 stop13h 20m
San Juan Luis Munoz Marin Intl
Mon 5/18
6:50 am-8:10 pm
1 stop16h 20m
$402
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Tue 4/7
6:20 am-8:38 pm
2 stops11h 18m
San Juan Luis Munoz Marin Intl
Mon 4/20
1:00 am-11:25 am
2 stops13h 25m
$407
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Mon 3/2
6:10 pm-2:40 pm
2 stops16h 30m
San Juan Luis Munoz Marin Intl
Tue 3/3
2:05 am-2:49 pm
2 stops16h 44m
$411
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Mon 3/16
3:25 pm-9:20 am
2 stops14h 55m
San Juan Luis Munoz Marin Intl
Wed 3/18
6:40 am-7:25 pm
1 stop15h 45m
$413
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Wed 4/22
6:20 am-11:50 pm
2 stops14h 30m
San Juan Luis Munoz Marin Intl
Tue 4/28
1:00 am-9:40 am
1 stop11h 40m
$416
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Sat 5/2
6:20 am-8:38 pm
2 stops11h 18m
San Juan Luis Munoz Marin Intl
Tue 5/5
7:40 am-9:12 pm
2 stops16h 32m
$416
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Wed 3/4
12:49 pm-3:51 am
1 stop11h 02m
San Juan Luis Munoz Marin Intl
Thu 3/12
10:45 am-7:52 pm
1 stop12h 07m
$418
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Tue 3/31
8:35 am-10:15 pm
1 stop10h 40m
San Juan Luis Munoz Marin Intl
Sat 4/11
2:25 pm-9:25 pm
1 stop10h 00m
$420
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Tue 3/17
6:20 am-11:00 pm
1 stop13h 40m
San Juan Luis Munoz Marin Intl
Tue 3/31
6:40 am-7:25 pm
1 stop15h 45m
$421
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Wed 4/22
7:35 pm-9:10 am
2 stops10h 35m
San Juan Luis Munoz Marin Intl
Wed 4/29
11:25 am-9:30 pm
2 stops13h 05m
$437
Showing 1-10 of 20 results
Best time to book a flight from San Diego to San Juan
Have a flexible travel schedule? Discover the best time to fly to San Juan from San Diego with our price prediction graph.
SAN-PR1
SAN-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 Diego to San Juan
SAN-PR1
SAN-SJU
How far ahead should I book a flight from San Diego to San Juan?
Use this chart to determine the optimal time to book a round-trip flight from San Diego to San Juan. Price data was last updated on February 6, 2026.
The price you pay for your flight from San Diego to San Juan may vary depending on when you book. For the best chance of a lower fare, look to book 63 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from San Diego to San Juan?
Currently, April is the cheapest month in which you can book a flight from San Diego to San Juan (average of $128). Flying from San Diego to San Juan in August is currently the most expensive (average of $352). 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 Diego 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 February 14, 2026.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta from San Diego to San Juan have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
7.8
Overall
8.0
Entertainment
7.0
Crew
8.5
Food
7.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Boarding
8.1
Comfort
7.8
Overall
8.0
Entertainment
7.0
Crew
8.5
Food
7.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Boarding
8.1
Comfort
7.8
Overall
8.0
Entertainment
7.0
Crew
8.5
Food
7.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Boarding
8.1
Comfort
7.8
Overall
8.0
Entertainment
7.0
Crew
8.5
Food
7.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Boarding
8.1
Comfort
7.8
Overall
8.0
Entertainment
7.0
Crew
8.5
Food
7.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Boarding
8.1
Comfort
7.8
Overall
8.0
Entertainment
7.0
Crew
8.5
Food
7.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Related info for your journey
Find useful and relevant information for your journey from San Diego to San Juan. 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.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from San Diego
Popular flights
Alternative routes for San Diego to San Juan
See prices for flight routes from nearby airports that may be better suited for you.
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 Diego to San Juan by cabin class
Find flights from San Diego to San Juan, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Diego and San Juan flights
Browse other San Diego and San Juan flight options. Last updated on February 14, 2026.
Other flights from San Diego
Browse through other flights departing from San Diego. Flights are based on user searches made on Cheapflights and were last updated on February 14, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 8 airlines flying from San Diego to San Juan
Discover the top 8 airlines that operate flights from San Diego 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 February 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$176 | Average$534 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$215 | Average$453 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$260 | Average$387 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$295 | Average$469 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$306 | Average$472 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$326 | Average$524 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$382 | Average$594 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$475 | Average$585 | FlexibilityNo cancel fee | On-time75% |