$203+ 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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SJU
Aug 23 — Aug 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 July 24, 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 July 24, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/22. 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.
Wed 8/1912:29 pm
SAN
- SJU
1 stop22h 59m
Multiple Airlines
Sun 8/308:57 pm
SJU
- SAN
2 stops26h 17m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$398
This American Airlines deal was found by Cheapflights users on 7/23. 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 8/179:36 pm
SAN
- SJU
1 stop12h 48m
American Airlines
Tue 8/1812:55 am
SJU
- SAN
1 stop11h 03m
American Airlines
Deal found 7/23![American Airlines logo]()
$401
This Kiwi.com deal was found by Cheapflights users on 7/22. 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.
Fri 8/213:45 pm
SAN
- SJU
2 stops30h 11m
Multiple Airlines
Fri 8/288:34 am
SJU
- SAN
1 stop30h 10m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$402
This American Airlines deal was found by Cheapflights users on 7/20. 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.
Mon 8/246:45 am
SAN
- SJU
1 stop14h 14m
American Airlines
Mon 8/317:03 am
SJU
- SAN
1 stop16h 32m
American Airlines
Deal found 7/20![American Airlines logo]()
$405
This Delta deal was found by Cheapflights users on 7/23. 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.
Tue 8/187:30 am
SAN
- SJU
1 stop13h 22m
Delta
Fri 8/217:30 am
SJU
- SAN
1 stop16h 06m
Delta
Deal found 7/23![Delta logo]()
$406
This American Airlines deal was found by Cheapflights users on 7/22. 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.
Sat 10/1712:56 pm
SAN
- SJU
1 stop19h 35m
American Airlines
Sat 10/247:30 am
SJU
- SAN
1 stop16h 28m
American Airlines
Deal found 7/22![American Airlines logo]()
$407
This American Airlines deal was found by Cheapflights users on 7/19. 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 9/910:30 pm
SAN
- SJU
1 stop9h 30m
American Airlines
Mon 9/1411:51 am
SJU
- SAN
1 stop13h 34m
American Airlines
Deal found 7/19![American Airlines logo]()
$410
This American Airlines deal was found by Cheapflights users on 7/22. 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 10/2810:27 pm
SAN
- SJU
1 stop9h 53m
American Airlines
Tue 11/103:53 pm
SJU
- SAN
1 stop12h 05m
American Airlines
Deal found 7/22![American Airlines logo]()
$411
This Southwest deal was found by Cheapflights users on 7/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/98:45 pm
SAN
- SJU
2 stops11h 00m
Southwest
Wed 12/162:25 pm
SJU
- SAN
1 stop10h 30m
Southwest
Deal found 7/20![Southwest logo]()
$421
This Kiwi.com deal was found by Cheapflights users on 7/21. 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.
Mon 8/108:51 pm
SAN
- SJU
2 stops48h 50m
Multiple Airlines
Fri 8/218:34 am
SJU
- SAN
1 stop30h 10m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$423
This Kiwi.com deal was found by Cheapflights users on 7/21. 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.
Tue 8/113:03 pm
SAN
- SJU
2 stops30h 38m
Multiple Airlines
Fri 8/218:34 am
SJU
- SAN
1 stop30h 10m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$424
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 July 24, 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 July 24, 2026.
This United Airlines deal was found by Cheapflights users on 7/20. 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.
Sat 11/76:30 am
SAN
- SJU
2 stops14h 06m
United Airlines
Sat 11/147:40 am
SJU
- SAN
1 stop9h 44m
United Airlines
Deal found 7/20![United Airlines logo]()
$406
This Delta deal was found by Cheapflights users on 7/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/76:15 am
SAN
- SJU
2 stops14h 41m
Delta
Sat 11/147:15 am
SJU
- SAN
2 stops17h 10m
Delta
Deal found 7/22![Delta logo]()
$406
This Southwest deal was found by Cheapflights users on 7/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2211:20 am
SAN
- SJU
2 stops11h 00m
Southwest
Sun 10/255:00 am
SJU
- SAN
1 stop9h 10m
Southwest
Deal found 7/21![Southwest logo]()
$406
This Southwest deal was found by Cheapflights users on 7/23. 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.
Wed 1/209:55 am
SAN
- SJU
1 stop8h 05m
Southwest
Sat 1/306:55 am
SJU
- SAN
1 stop12h 25m
Southwest
Deal found 7/23![Southwest logo]()
$406
This United Airlines deal was found by Cheapflights users on 7/23. 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 10/228:00 am
SAN
- SJU
1 stop9h 38m
United Airlines
Mon 10/2612:00 pm
SJU
- SAN
2 stops13h 30m
United Airlines
Deal found 7/23![United Airlines logo]()
$406
This Southwest deal was found by Cheapflights users on 7/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/79:55 pm
SAN
- SJU
1 stop11h 35m
Southwest
Sat 11/147:45 am
SJU
- SAN
1 stop13h 40m
Southwest
Deal found 7/22![Southwest logo]()
$406
This Delta deal was found by Cheapflights users on 7/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:15 am
SAN
- SJU
2 stops14h 41m
Delta
Wed 11/187:15 am
SJU
- SAN
2 stops17h 10m
Delta
Deal found 7/21![Delta logo]()
$472
This Southwest deal was found by Cheapflights users on 7/19. 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.
Thu 10/2211:20 am
SAN
- SJU
2 stops11h 00m
Southwest
Mon 10/265:30 am
SJU
- SAN
2 stops14h 20m
Southwest
Deal found 7/19![Southwest logo]()
$421
This United Airlines deal was found by Cheapflights users on 7/23. 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 9/197:41 pm
SAN
- SJU
2 stops16h 03m
United Airlines
Tue 9/221:00 am
SJU
- SAN
1 stop11h 49m
United Airlines
Deal found 7/23![United Airlines logo]()
$496
This Southwest deal was found by Cheapflights users on 7/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/98:45 pm
SAN
- SJU
2 stops11h 00m
Southwest
Wed 12/167:40 am
SJU
- SAN
2 stops11h 10m
Southwest
Deal found 7/20![Southwest logo]()
$421
This Southwest deal was found by Cheapflights users on 7/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:35 am
SAN
- SJU
2 stops10h 25m
Southwest
Thu 9/108:55 pm
SJU
- SAN
2 stops17h 05m
Southwest
Deal found 7/20![Southwest logo]()
$421
Last-minute flights from San Diego to San JuanDiscover last-minute flight deals from San Diego to San Juan. Data last updated July 24, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to San Juan. Data last updated July 24, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/21. 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.
Mon 8/108:51 pm
SAN
- SJU
2 stops48h 50m
Multiple Airlines
Fri 8/218:34 am
SJU
- SAN
1 stop30h 10m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$423
This Kiwi.com deal was found by Cheapflights users on 7/21. 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.
Tue 8/113:03 pm
SAN
- SJU
2 stops30h 38m
Multiple Airlines
Fri 8/218:34 am
SJU
- SAN
1 stop30h 10m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$424
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Wed 8/1212:29 pm
SAN
- SJU
1 stop22h 12m
Multiple Airlines
Wed 8/1912:11 pm
SJU
- SAN
2 stops34h 53m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$410
This Southwest deal was found by Cheapflights users on 7/23. 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.
Fri 8/148:40 am
SAN
- SJU
1 stop11h 25m
Southwest
Thu 8/208:55 pm
SJU
- SAN
2 stops17h 05m
Southwest
Deal found 7/23![Southwest logo]()
$421
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Fri 8/146:25 am
SAN
- SJU
2 stops39h 16m
Multiple Airlines
Fri 8/218:34 am
SJU
- SAN
1 stop30h 10m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$429
This American Airlines deal was found by Cheapflights users on 7/23. 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 8/179:36 pm
SAN
- SJU
1 stop12h 48m
American Airlines
Tue 8/1812:55 am
SJU
- SAN
1 stop11h 03m
American Airlines
Deal found 7/23![American Airlines logo]()
$401
This Delta deal was found by Cheapflights users on 7/23. 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.
Tue 8/187:30 am
SAN
- SJU
1 stop13h 22m
Delta
Fri 8/217:30 am
SJU
- SAN
1 stop16h 06m
Delta
Deal found 7/23![Delta logo]()
$406
This Kiwi.com deal was found by Cheapflights users on 7/22. 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.
Wed 8/1912:29 pm
SAN
- SJU
1 stop22h 59m
Multiple Airlines
Sun 8/308:57 pm
SJU
- SAN
2 stops26h 17m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$398
This American Airlines deal was found by Cheapflights users on 7/19. 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 8/194:22 pm
SAN
- SJU
2 stops14h 21m
American Airlines
Sun 8/2312:55 am
SJU
- SAN
1 stop11h 03m
American Airlines
Deal found 7/19![American Airlines logo]()
$411
This Kiwi.com deal was found by Cheapflights users on 7/22. 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.
Fri 8/213:45 pm
SAN
- SJU
2 stops30h 11m
Multiple Airlines
Fri 8/288:34 am
SJU
- SAN
1 stop30h 10m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$402
This American Airlines deal was found by Cheapflights users on 7/20. 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.
Mon 8/246:45 am
SAN
- SJU
1 stop14h 14m
American Airlines
Mon 8/317:03 am
SJU
- SAN
1 stop16h 32m
American Airlines
Deal found 7/20![American Airlines logo]()
$405
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 July 24, 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 July 24, 2026.
This Delta deal was found by Cheapflights users on 7/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/410:30 pm
SAN
- SJU
1 stop12h 15m
Delta
Deal found 7/22![Delta logo]()
$203
This American Airlines deal was found by Cheapflights users on 7/22. 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.
Sun 8/2310:45 pm
SAN
- SJU
1 stop12h 53m
American Airlines
Deal found 7/22![American Airlines logo]()
$207
This American Airlines deal was found by Cheapflights users on 7/23. 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.
Tue 8/2510:20 pm
SAN
- SJU
2 stops11h 20m
American Airlines
Deal found 7/23![American Airlines logo]()
$208
This Kiwi.com deal was found by Cheapflights users on 7/21. 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.
Mon 8/108:51 pm
SAN
- SJU
2 stops48h 50m
Frontier
Deal found 7/21![Frontier logo]()
$245
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 8/86:25 am
SAN
- SJU
2 stops38h 42m
Frontier
Deal found 7/23![Frontier logo]()
$252
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 8/16:25 am
SAN
- SJU
2 stops38h 42m
Frontier
Deal found 7/23![Frontier logo]()
$260
This Southwest deal was found by Cheapflights users on 7/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/39:45 am
SAN
- SJU
1 stop8h 30m
Southwest
Deal found 7/20![Southwest logo]()
$262
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Fri 8/74:28 pm
SAN
- SJU
2 stops36h 29m
Frontier
Deal found 7/23![Frontier logo]()
$300
This United Airlines deal was found by Cheapflights users on 7/20. 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.
Fri 1/158:45 pm
SAN
- SJU
1 stop11h 05m
United Airlines
Deal found 7/20![United Airlines logo]()
$303
This American Airlines deal was found by Cheapflights users on 7/23. 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 8/710:20 pm
SAN
- SJU
1 stop13h 31m
American Airlines
Deal found 7/23![American Airlines logo]()
$307
This American Airlines deal was found by Cheapflights users on 7/23. 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 8/87:24 am
SAN
- SJU
1 stop12h 30m
American Airlines
Deal found 7/23![American Airlines logo]()
$314
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 July 24, 2026.
Round-trip from | $398 (Kiwi.com) |
|---|---|
One-way from | $203 (Delta) |
Popular in | December |
Cheapest in | May |
Average price | $525 |
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 July 24, 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
Sat 11/7
6:30 am-12:36 am
2 stops14h 06m
San Juan Luis Munoz Marin Intl
Sat 11/14
7:40 am-1:24 pm
1 stop9h 44m
$406
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Sat 11/7
6:15 am-12:56 am
2 stops14h 41m
San Juan Luis Munoz Marin Intl
Sat 11/14
7:15 am-8:25 pm
2 stops17h 10m
$406
Quickest round-trip
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Thu 10/22
11:20 am-1:20 am
2 stops11h 00m
San Juan Luis Munoz Marin Intl
Sun 10/25
5:00 am-11:10 am
1 stop9h 10m
$406
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Wed 1/20
9:55 am-10:00 pm
1 stop8h 05m
San Juan Luis Munoz Marin Intl
Sat 1/30
6:55 am-3:20 pm
1 stop12h 25m
$406
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Thu 10/22
8:00 am-8:38 pm
1 stop9h 38m
San Juan Luis Munoz Marin Intl
Mon 10/26
12:00 pm-10:30 pm
2 stops13h 30m
$406
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Sat 11/7
9:55 pm-1:30 pm
1 stop11h 35m
San Juan Luis Munoz Marin Intl
Sat 11/14
7:45 am-5:25 pm
1 stop13h 40m
$406
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Thu 10/22
11:20 am-1:20 am
2 stops11h 00m
San Juan Luis Munoz Marin Intl
Mon 10/26
5:30 am-4:50 pm
2 stops14h 20m
$421
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Wed 12/9
8:45 pm-11:45 am
2 stops11h 00m
San Juan Luis Munoz Marin Intl
Wed 12/16
7:40 am-2:50 pm
2 stops11h 10m
$421
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Tue 9/1
8:35 am-10:00 pm
2 stops10h 25m
San Juan Luis Munoz Marin Intl
Thu 9/10
8:55 pm-11:00 am
2 stops17h 05m
$421
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Wed 10/28
6:15 am-11:56 pm
2 stops14h 41m
San Juan Luis Munoz Marin Intl
Wed 11/18
7:15 am-8:25 pm
2 stops17h 10m
$472
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
What is the cheapest month to book a flight from San Diego to San Juan?
Currently, May is the cheapest month in which you can book a flight from San Diego to San Juan (average of $426). Flying from San Diego to San Juan in December is currently the most expensive (average of $734). 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?
Airfare is below average for this route at the moment.
San Diego to San Juan flights typically cost between $418 and $625 in August.The cheapest round-trip price found within the last 5 days was $398 on Multiple Airlines (Aug 19-Aug 30).
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 74 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 July 24, 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.
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
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 July 24, 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 July 24, 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 July 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$138 | Average$476 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$193 | Average$388 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$290 | Average$529 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$295 | Average$449 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$295 | Average$527 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$386 | Average$575 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$426 | Average$631 | FlexibilityNo cancel fee | On-time75% |