$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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SJU
Jul 23 — Jul 301
Round-trip
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 June 23, 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 June 23, 2026.
This American Airlines deal was found by Cheapflights users on 6/23. 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.
Sat 10/246:20 am
SAN
- SJU
1 stop14h 21m
American Airlines
Sat 10/315:25 am
SJU
- SAN
1 stop18h 14m
American Airlines
Deal found 6/23![American Airlines logo]()
$262
This Delta deal was found by Cheapflights users on 6/23. 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 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 36m
Delta
Sat 10/2412:46 pm
SJU
- SAN
1 stop13h 17m
Delta
Deal found 6/23![Delta logo]()
$276
This American Airlines deal was found by Cheapflights users on 6/19. 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.
Sat 10/1710:45 pm
SAN
- SJU
1 stop12h 00m
American Airlines
Sat 10/246:00 am
SJU
- SAN
1 stop17h 39m
American Airlines
Deal found 6/19![American Airlines logo]()
$322
This American Airlines deal was found by Cheapflights users on 6/23. 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 8/2110:45 pm
SAN
- SJU
2 stops12h 53m
American Airlines
Fri 8/283:44 pm
SJU
- SAN
1 stop19h 28m
American Airlines
Deal found 6/23![American Airlines logo]()
$324
This American Airlines deal was found by Cheapflights users on 6/23. 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 8/199:40 am
SAN
- SJU
2 stops11h 19m
American Airlines
Sun 8/2312:55 am
SJU
- SAN
1 stop11h 03m
American Airlines
Deal found 6/23![American Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 6/19. 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 8/149:36 pm
SAN
- SJU
1 stop12h 48m
American Airlines
Sun 8/236:00 am
SJU
- SAN
2 stops15h 18m
American Airlines
Deal found 6/19![American Airlines logo]()
$330
This Delta deal was found by Cheapflights users on 6/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1110:10 pm
SAN
- SJU
1 stop10h 55m
Delta
Thu 11/197:15 am
SJU
- SAN
2 stops17h 10m
Delta
Deal found 6/23![Delta logo]()
$331
This American Airlines deal was found by Cheapflights users on 6/20. 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 8/304:29 pm
SAN
- SJU
1 stop19h 25m
American Airlines
Sat 9/56:00 am
SJU
- SAN
1 stop20h 08m
American Airlines
Deal found 6/20![American Airlines logo]()
$349
This American Airlines deal was found by Cheapflights users on 6/21. 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 9/26:45 am
SAN
- SJU
1 stop14h 14m
American Airlines
Sat 9/57:20 pm
SJU
- SAN
1 stop19h 12m
American Airlines
Deal found 6/21![American Airlines logo]()
$354
This American Airlines deal was found by Cheapflights users on 6/21. 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 9/246:45 pm
SAN
- SJU
1 stop17h 00m
American Airlines
Sun 9/274:19 pm
SJU
- SAN
1 stop18h 59m
American Airlines
Deal found 6/21![American Airlines logo]()
$355
This American Airlines deal was found by Cheapflights users on 6/19. 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 9/91:50 pm
SAN
- SJU
2 stops16h 34m
American Airlines
Mon 9/143:35 pm
SJU
- SAN
1 stop19h 43m
American Airlines
Deal found 6/19![American Airlines logo]()
$356
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 June 23, 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 June 23, 2026.
This United Airlines deal was found by Cheapflights users on 6/20. 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 8/45:15 pm
SAN
- SJU
1 stop9h 14m
United Airlines
Wed 8/262:20 pm
SJU
- SAN
1 stop10h 05m
United Airlines
Deal found 6/20![United Airlines logo]()
$386
This American Airlines deal was found by Cheapflights users on 6/18. 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 8/46:15 am
SAN
- SJU
1 stop13h 42m
American Airlines
Wed 8/2610:33 am
SJU
- SAN
2 stops10h 45m
American Airlines
Deal found 6/18![American Airlines logo]()
$396
This Southwest deal was found by Cheapflights users on 6/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/179:40 am
SAN
- SJU
2 stops11h 10m
Southwest
Sat 10/245:30 am
SJU
- SAN
2 stops13h 20m
Southwest
Deal found 6/23![Southwest logo]()
$420
This Delta deal was found by Cheapflights users on 6/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/67:20 am
SAN
- SJU
1 stop13h 23m
Delta
Fri 7/107:35 am
SJU
- SAN
1 stop15h 59m
Delta
Deal found 6/23![Delta logo]()
$640
This United Airlines deal was found by Cheapflights users on 6/23. 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.
Fri 9/49:45 pm
SAN
- SJU
1 stop11h 49m
United Airlines
Thu 9/101:00 am
SJU
- SAN
2 stops13h 35m
United Airlines
Deal found 6/23![United Airlines logo]()
$414
This Southwest deal was found by Cheapflights users on 6/18. 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 8/410:40 pm
SAN
- SJU
2 stops10h 40m
Southwest
Wed 8/268:20 am
SJU
- SAN
2 stops11h 35m
Southwest
Deal found 6/18![Southwest logo]()
$441
This United Airlines deal was found by Cheapflights users on 6/23. 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.
Sat 10/1710:20 pm
SAN
- SJU
1 stop12h 25m
United Airlines
Fri 10/231:00 am
SJU
- SAN
3 stops22h 45m
United Airlines
Deal found 6/23![United Airlines logo]()
$502
This Southwest deal was found by Cheapflights users on 6/19. 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 8/148:40 am
SAN
- SJU
1 stop11h 25m
Southwest
Sun 8/233:15 pm
SJU
- SAN
1 stop10h 35m
Southwest
Deal found 6/19![Southwest logo]()
$551
This United Airlines deal was found by Cheapflights users on 6/20. 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.
Sun 10/256:50 am
SAN
- SJU
1 stop10h 10m
United Airlines
Thu 10/297:25 am
SJU
- SAN
1 stop10h 47m
United Airlines
Deal found 6/20![United Airlines logo]()
$541
This United Airlines deal was found by Cheapflights users on 6/22. 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 10/286:30 pm
SAN
- SJU
2 stops15h 11m
United Airlines
Tue 11/105:50 pm
SJU
- SAN
3 stops28h 47m
United Airlines
Deal found 6/22![United Airlines logo]()
$626
This United Airlines deal was found by Cheapflights users on 6/21. 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.
Sun 10/185:00 pm
SAN
- SJU
2 stops16h 34m
United Airlines
Fri 10/231:00 am
SJU
- SAN
2 stops17h 49m
United Airlines
Deal found 6/21![United Airlines logo]()
$631
Last-minute flights from San Diego to San JuanDiscover last-minute flight deals from San Diego to San Juan. Data last updated June 23, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to San Juan. Data last updated June 23, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 7/412:29 pm
SAN
- SJU
1 stop22h 26m
Multiple Airlines
Fri 7/103:10 am
SJU
- SAN
2 stops15h 17m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$531
This American Airlines deal was found by Cheapflights users on 6/19. 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 7/56:15 am
SAN
- SJU
1 stop14h 33m
American Airlines
Wed 8/267:00 am
SJU
- SAN
1 stop15h 15m
American Airlines
Deal found 6/19![American Airlines logo]()
$477
This Expedia deal was found by Cheapflights users on 6/22. 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 7/68:40 pm
SAN
- SJU
2 stops19h 17m
Multiple Airlines
Fri 7/106:32 am
SJU
- SAN
1 stop15h 29m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$527
This Orbitz deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/138:40 pm
SAN
- SJU
2 stops19h 29m
Multiple Airlines
Sat 7/186:32 am
SJU
- SAN
1 stop15h 29m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$496
This CheapOair deal was found by Cheapflights users on 6/21. 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.
Mon 7/138:30 pm
SAN
- SJU
2 stops24h 44m
Multiple Airlines
Sat 7/256:32 am
SJU
- SAN
1 stop15h 29m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$505
This American Airlines deal was found by Cheapflights users on 6/21. 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 7/146:15 am
SAN
- SJU
1 stop14h 33m
American Airlines
Mon 8/1712:55 am
SJU
- SAN
1 stop11h 03m
American Airlines
Deal found 6/21![American Airlines logo]()
$444
This United Airlines deal was found by Cheapflights users on 6/21. 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 7/145:15 pm
SAN
- SJU
1 stop9h 14m
United Airlines
Mon 8/171:00 am
SJU
- SAN
2 stops15h 17m
United Airlines
Deal found 6/21![United Airlines logo]()
$513
This CheapOair deal was found by Cheapflights users on 6/19. 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.
Tue 7/218:30 pm
SAN
- SJU
2 stops24h 44m
Multiple Airlines
Tue 7/286:32 am
SJU
- SAN
1 stop15h 29m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$510
This American Airlines deal was found by Cheapflights users on 6/22. 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 7/226:15 am
SAN
- SJU
1 stop14h 43m
American Airlines
Wed 7/297:25 am
SJU
- SAN
1 stop17h 20m
American Airlines
Deal found 6/22![American Airlines logo]()
$529
This Kiwi.com deal was found by Cheapflights users on 6/21. 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 7/254:12 pm
SAN
- SJU
2 stops36h 45m
Multiple Airlines
Tue 8/46:45 am
SJU
- SAN
1 stop31h 59m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$521
This United Airlines deal was found by Cheapflights users on 6/23. 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.
Wed 7/293:10 pm
SAN
- SJU
1 stop11h 19m
United Airlines
Wed 8/122:20 pm
SJU
- SAN
1 stop10h 05m
United Airlines
Deal found 6/23![United Airlines logo]()
$519
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 June 23, 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 June 23, 2026.
This American Airlines deal was found by Cheapflights users on 6/21. 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 9/1510:46 pm
SAN
- SJU
2 stops12h 08m
American Airlines
Deal found 6/21![American Airlines logo]()
$131
This American Airlines deal was found by Cheapflights users on 6/23. 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.
Sat 10/246:45 pm
SAN
- SJU
1 stop17h 17m
American Airlines
Deal found 6/23![American Airlines logo]()
$134
This Delta deal was found by Cheapflights users on 6/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:00 pm
SAN
- SJU
2 stops15h 56m
Delta
Deal found 6/23![Delta logo]()
$138
This American Airlines deal was found by Cheapflights users on 6/22. 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 8/712:32 pm
SAN
- SJU
1 stop18h 11m
American Airlines
Deal found 6/22![American Airlines logo]()
$166
This United Airlines deal was found by Cheapflights users on 6/19. 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 8/116:30 am
SAN
- SJU
2 stops14h 20m
United Airlines
Deal found 6/19![United Airlines logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 6/21. 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 8/53:03 pm
SAN
- SJU
3 stops54h 38m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$209
This United Airlines deal was found by Cheapflights users on 6/23. 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.
Sat 10/2412:40 pm
SAN
- SJU
3 stops19h 10m
United Airlines
Deal found 6/23![United Airlines logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 6/21. 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 8/53:03 pm
SAN
- SJU
2 stops30h 25m
Frontier
Deal found 6/21![Frontier logo]()
$222
This JetBlue deal was found by Cheapflights users on 6/21. 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 9/159:30 pm
SAN
- SJU
1 stop13h 04m
JetBlue
Deal found 6/21![JetBlue logo]()
$223
This Kiwi.com deal was found by Cheapflights users on 6/23. 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.
Sun 7/196:25 am
SAN
- SJU
2 stops39h 03m
Frontier
Deal found 6/23![Frontier logo]()
$224
This Trip.com deal was found by Cheapflights users on 6/22. 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.
Wed 7/153:03 pm
SAN
- SJU
2 stops16h 40m
Frontier
Deal found 6/22![Frontier logo]()
$225
This Expedia deal was found by Cheapflights users on 6/22. 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.
Wed 8/58:40 pm
SAN
- SJU
2 stops20h 20m
JetBlue
Deal found 6/22![JetBlue logo]()
$231
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 June 23, 2026.
Round-trip from | $322 (American Airlines) |
|---|---|
One-way from | $131 (American Airlines) |
Popular in | December |
Cheapest in | May |
Average price | $524 |
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 June 23, 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
Quickest round-trip
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Tue 8/4
5:15 pm-5:29 am
1 stop9h 14m
San Juan Luis Munoz Marin Intl
Wed 8/26
2:20 pm-9:25 pm
1 stop10h 05m
$386
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Tue 8/4
6:15 am-10:57 pm
1 stop13h 42m
San Juan Luis Munoz Marin Intl
Wed 8/26
10:33 am-6:18 pm
2 stops10h 45m
$396
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Fri 9/4
9:45 pm-12:34 pm
1 stop11h 49m
San Juan Luis Munoz Marin Intl
Thu 9/10
1:00 am-11:35 am
2 stops13h 35m
$414
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Sat 10/17
9:40 am-11:50 pm
2 stops11h 10m
San Juan Luis Munoz Marin Intl
Sat 10/24
5:30 am-3:50 pm
2 stops13h 20m
$420
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Tue 8/4
10:40 pm-12:20 pm
2 stops10h 40m
San Juan Luis Munoz Marin Intl
Wed 8/26
8:20 am-4:55 pm
2 stops11h 35m
$441
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Sat 10/17
10:20 pm-1:45 pm
1 stop12h 25m
San Juan Luis Munoz Marin Intl
Fri 10/23
1:00 am-8:45 pm
3 stops22h 45m
$502
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Sun 10/25
6:50 am-8:00 pm
1 stop10h 10m
San Juan Luis Munoz Marin Intl
Thu 10/29
7:25 am-3:12 pm
1 stop10h 47m
$541
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Fri 8/14
8:40 am-11:05 pm
1 stop11h 25m
San Juan Luis Munoz Marin Intl
Sun 8/23
3:15 pm-10:50 pm
1 stop10h 35m
$551
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Wed 10/28
6:30 pm-12:41 pm
2 stops15h 11m
San Juan Luis Munoz Marin Intl
Tue 11/10
5:50 pm-6:37 pm
3 stops28h 47m
$626
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Sun 10/18
5:00 pm-12:34 pm
2 stops16h 34m
San Juan Luis Munoz Marin Intl
Fri 10/23
1:00 am-3:49 pm
2 stops17h 49m
$631
Showing 1-10 of 21 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
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?
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.
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 June 23, 2026.
See what other customers who have flown with Alaska Airlines,Southwest, 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
7.9
Comfort
7.8
Crew
8.5
Food
7.0
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Overall
7.9
Comfort
7.8
Crew
8.5
Food
7.0
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Overall
7.9
Comfort
7.8
Crew
8.5
Food
7.0
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Overall
7.9
Comfort
7.8
Crew
8.5
Food
7.0
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Overall
7.9
Comfort
7.8
Crew
8.5
Food
7.0
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Overall
7.9
Comfort
7.8
Crew
8.5
Food
7.0
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
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 June 23, 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 June 23, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 7 airlines flying from San Diego to San Juan
Discover the top 7 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 June 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$138 | Average$476 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$176 | Average$413 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$295 | Average$467 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$295 | Average$532 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$306 | Average$529 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$382 | Average$563 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$426 | Average$595 | FlexibilityNo cancel fee | On-time75% |