$131+ 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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SJU
May 28 — Jun 41
Round-trip
1 adult, Economy
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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 April 28, 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 April 28, 2026.
This American Airlines deal was found by Cheapflights users on 4/23. 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.
Fri 8/2112:32 pm
SAN
- SJU
1 stop18h 11m
American Airlines
Fri 8/286:51 am
SJU
- SAN
1 stop15h 27m
American Airlines
Deal found 4/23![American Airlines logo]()
$294
This American Airlines deal was found by Cheapflights users on 4/23. 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.
Wed 8/1910:45 pm
SAN
- SJU
2 stops12h 53m
American Airlines
Mon 8/247:14 pm
SJU
- SAN
1 stop18h 35m
American Airlines
Deal found 4/23![American Airlines logo]()
$299
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 5/912:29 pm
SAN
- SJU
1 stop23h 04m
Multiple Airlines
Thu 5/146:30 am
SJU
- SAN
2 stops29h 12m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$302
This United Airlines deal was found by Cheapflights users on 4/23. 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 8/208:00 am
SAN
- SJU
1 stop9h 38m
United Airlines
Tue 8/257:00 am
SJU
- SAN
1 stop9h 17m
United Airlines
Deal found 4/23![United Airlines logo]()
$328
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 5/912:29 pm
SAN
- SJU
1 stop23h 04m
Multiple Airlines
Fri 5/156:41 pm
SJU
- SAN
2 stops41h 01m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 4/23. 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.
Sun 8/1612:32 pm
SAN
- SJU
1 stop18h 11m
American Airlines
Sat 8/227:10 pm
SJU
- SAN
1 stop19h 22m
American Airlines
Deal found 4/23![American Airlines logo]()
$334
This Expedia deal was found by Cheapflights users on 4/26. 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.
Mon 5/188:30 pm
SAN
- SJU
1 stop12h 30m
Multiple Airlines
Sat 5/236:25 am
SJU
- SAN
1 stop15h 00m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$335
This American Airlines deal was found by Cheapflights users on 4/23. 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.
Wed 8/196:15 am
SAN
- SJU
1 stop14h 44m
American Airlines
Sun 8/233:44 pm
SJU
- SAN
1 stop19h 28m
American Airlines
Deal found 4/23![American Airlines logo]()
$339
This American Airlines deal was found by Cheapflights users on 4/23. 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.
Mon 9/2811:00 pm
SAN
- SJU
2 stops12h 45m
American Airlines
Sat 10/32:25 pm
SJU
- SAN
1 stop11h 09m
American Airlines
Deal found 4/23![American Airlines logo]()
$340
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 April 28, 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 April 28, 2026.
This Delta deal was found by Cheapflights users on 4/24. 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 10/207:00 am
SAN
- SJU
1 stop13h 56m
Delta
Tue 10/271:06 pm
SJU
- SAN
1 stop13h 39m
Delta
Deal found 4/24![Delta logo]()
$386
This United Airlines deal was found by Cheapflights users on 4/27. 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 9/98:00 am
SAN
- SJU
1 stop9h 38m
United Airlines
Fri 9/181:00 am
SJU
- SAN
2 stops13h 35m
United Airlines
Deal found 4/27![United Airlines logo]()
$386
This Southwest deal was found by Cheapflights users on 4/27. 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 9/18:45 am
SAN
- SJU
1 stop10h 15m
Southwest
Tue 9/86:00 am
SJU
- SAN
1 stop16h 35m
Southwest
Deal found 4/27![Southwest logo]()
$386
This Delta deal was found by Cheapflights users on 4/27. 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 9/210:10 pm
SAN
- SJU
1 stop15h 21m
Delta
Sat 9/51:06 pm
SJU
- SAN
1 stop9h 52m
Delta
Deal found 4/27![Delta logo]()
$386
This Delta deal was found by Cheapflights users on 4/25. 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 10/173:20 pm
SAN
- SJU
2 stops17h 16m
Delta
Sat 10/2412:46 pm
SJU
- SAN
1 stop10h 32m
Delta
Deal found 4/25![Delta logo]()
$386
This Southwest deal was found by Cheapflights users on 4/27. 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 8/266:45 am
SAN
- SJU
2 stops11h 20m
Southwest
Sun 8/301:50 pm
SJU
- SAN
2 stops11h 35m
Southwest
Deal found 4/27![Southwest logo]()
$466
This United Airlines deal was found by Cheapflights users on 4/25. 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 8/117:41 pm
SAN
- SJU
2 stops16h 03m
United Airlines
Tue 8/187:00 am
SJU
- SAN
1 stop9h 17m
United Airlines
Deal found 4/25![United Airlines logo]()
$476
This United Airlines deal was found by Cheapflights users on 4/27. 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 8/35:15 pm
SAN
- SJU
1 stop9h 14m
United Airlines
Mon 8/101:40 pm
SJU
- SAN
2 stops13h 14m
United Airlines
Deal found 4/27![United Airlines logo]()
$493
This Delta deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2010:17 pm
SAN
- SJU
1 stop11h 38m
Delta
Tue 7/2812:56 pm
SJU
- SAN
1 stop9h 39m
Delta
Deal found 4/24![Delta logo]()
$471
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/19:45 pm
SAN
- SJU
1 stop12h 09m
United Airlines
Fri 9/41:00 am
SJU
- SAN
2 stops17h 02m
United Airlines
Deal found 4/27![United Airlines logo]()
$544
Last-minute flights from San Diego to San JuanDiscover last-minute flight deals from San Diego to San Juan. Data last updated April 28, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to San Juan. Data last updated April 28, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 5/89:37 am
SAN
- SJU
2 stops35h 22m
Multiple Airlines
Fri 5/157:00 am
SJU
- SAN
1 stop31h 44m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$381
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 5/912:29 pm
SAN
- SJU
1 stop23h 04m
Multiple Airlines
Thu 5/146:30 am
SJU
- SAN
2 stops29h 12m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$302
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 5/912:29 pm
SAN
- SJU
1 stop23h 04m
Multiple Airlines
Fri 5/156:41 pm
SJU
- SAN
2 stops41h 01m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$329
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 5/912:29 pm
SAN
- SJU
1 stop23h 04m
Multiple Airlines
Wed 5/135:15 pm
SJU
- SAN
2 stops33h 35m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$372
This Kiwi.com deal was found by Cheapflights users on 4/25. 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 5/912:29 pm
SAN
- SJU
1 stop23h 04m
Multiple Airlines
Sat 5/166:30 am
SJU
- SAN
2 stops29h 12m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$377
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 5/1012:09 pm
SAN
- SJU
2 stops33h 12m
Multiple Airlines
Fri 5/157:00 am
SJU
- SAN
1 stop31h 44m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$391
This Expedia deal was found by Cheapflights users on 4/26. 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.
Mon 5/188:30 pm
SAN
- SJU
1 stop12h 30m
Multiple Airlines
Sat 5/236:25 am
SJU
- SAN
1 stop15h 00m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$335
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 5/186:25 am
SAN
- SJU
2 stops28h 36m
Multiple Airlines
Mon 5/252:37 pm
SJU
- SAN
1 stop30h 53m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$356
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 5/186:25 am
SAN
- SJU
2 stops28h 36m
Multiple Airlines
Fri 5/227:00 am
SJU
- SAN
1 stop31h 44m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$358
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 5/2312:29 pm
SAN
- SJU
1 stop23h 04m
Multiple Airlines
Thu 5/286:41 pm
SJU
- SAN
2 stops41h 01m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$350
This American Airlines deal was found by Cheapflights users on 4/27. 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 5/266:15 am
SAN
- SJU
1 stop14h 44m
American Airlines
Tue 6/211:55 am
SJU
- SAN
1 stop13h 25m
American Airlines
Deal found 4/27![American Airlines logo]()
$386
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 April 28, 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 April 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 5/186:25 am
SAN
- SJU
2 stops31h 18m
Frontier
Deal found 4/28![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 5/146:25 am
SAN
- SJU
2 stops38h 32m
Frontier
Deal found 4/23![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 5/126:25 am
SAN
- SJU
2 stops40h 43m
Frontier
Deal found 4/23![Frontier logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 5/249:37 am
SAN
- SJU
2 stops25h 30m
Frontier
Deal found 4/24![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 5/912:29 pm
SAN
- SJU
1 stop23h 04m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 5/196:25 am
SAN
- SJU
2 stops32h 01m
Frontier
Deal found 4/28![Frontier logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 5/116:25 am
SAN
- SJU
2 stops37h 18m
Frontier
Deal found 4/23![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 5/176:25 am
SAN
- SJU
2 stops38h 32m
Frontier
Deal found 4/27![Frontier logo]()
$191
This Delta deal was found by Cheapflights users on 4/27. 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 5/3010:15 pm
SAN
- SJU
1 stop12h 05m
Delta
Deal found 4/27![Delta logo]()
$193
This American Airlines deal was found by Cheapflights users on 4/24. 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.
Mon 5/259:55 pm
SAN
- SJU
1 stop12h 02m
American Airlines
Deal found 4/24![American Airlines logo]()
$194
This American Airlines deal was found by Cheapflights users on 4/26. 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.
Wed 8/269:40 pm
SAN
- SJU
1 stop13h 03m
American Airlines
Deal found 4/26![American Airlines logo]()
$198
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 5/1212:24 pm
SAN
- SJU
2 stops18h 40m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$199
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 April 28, 2026.
Round-trip from | $294 (American Airlines) |
|---|---|
One-way from | $131 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $471 |
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 April 28, 2026.
Use the filters below to find and compare flights from San Diego to San Juan that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Tue 10/20
7:00 am-11:56 pm
1 stop13h 56m
San Juan Luis Munoz Marin Intl
Tue 10/27
1:06 pm-11:45 pm
1 stop13h 39m
$386
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Wed 9/9
8:00 am-8:38 pm
1 stop9h 38m
San Juan Luis Munoz Marin Intl
Fri 9/18
1:00 am-11:35 am
2 stops13h 35m
$386
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Tue 9/1
8:45 am-10:00 pm
1 stop10h 15m
San Juan Luis Munoz Marin Intl
Tue 9/8
6:00 am-7:35 pm
1 stop16h 35m
$386
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Wed 9/2
10:10 pm-4:31 pm
1 stop15h 21m
San Juan Luis Munoz Marin Intl
Sat 9/5
1:06 pm-7:58 pm
1 stop9h 52m
$386
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Sat 10/17
3:20 pm-11:36 am
2 stops17h 16m
San Juan Luis Munoz Marin Intl
Sat 10/24
12:46 pm-8:18 pm
1 stop10h 32m
$386
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Wed 8/26
6:45 am-9:05 pm
2 stops11h 20m
San Juan Luis Munoz Marin Intl
Sun 8/30
1:50 pm-10:25 pm
2 stops11h 35m
$466
Quickest round-trip
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Mon 7/20
10:17 pm-12:55 pm
1 stop11h 38m
San Juan Luis Munoz Marin Intl
Tue 7/28
12:56 pm-7:35 pm
1 stop9h 39m
$471
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Tue 8/11
7:41 pm-2:44 pm
2 stops16h 03m
San Juan Luis Munoz Marin Intl
Tue 8/18
7:00 am-1:17 pm
1 stop9h 17m
$476
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Mon 8/3
5:15 pm-5:29 am
1 stop9h 14m
San Juan Luis Munoz Marin Intl
Mon 8/10
1:40 pm-11:54 pm
2 stops13h 14m
$493
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Tue 9/1
9:45 pm-12:54 pm
1 stop12h 09m
San Juan Luis Munoz Marin Intl
Fri 9/4
1:00 am-3:02 pm
2 stops17h 02m
$544
Showing 1-10 of 20 resultsSorted by cheapest first
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?
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 62 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, September is the cheapest month in which you can book a flight from San Diego to San Juan (average of $141). Flying from San Diego to San Juan in February is currently the most expensive (average of $273). 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 April 28, 2026.
See what other customers who have flown with Southwest,Alaska Airlines, andDelta 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.
Overall
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
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.
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San Diego and San Juan flights
Browse other San Diego and San Juan flight options. Last updated on April 28, 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 April 28, 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 April 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$176 | Average$459 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$215 | Average$460 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$260 | Average$450 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$295 | Average$471 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$302 | Average$537 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$306 | Average$486 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$382 | Average$563 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$426 | Average$607 | FlexibilityNo cancel fee | On-time75% |