$126+ 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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SJU
May 13 — May 201
Round-trip
1 adult, Economy
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Find cheap flights from San Diego to San Juan with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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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 13, 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 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:00 am
SAN
- SJU
1 stop13h 10m
Multiple Airlines
Sat 5/96:30 am
SJU
- SAN
2 stops29h 12m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$318
This Kiwi.com deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/16:25 am
SAN
- SJU
2 stops38h 04m
Multiple Airlines
Fri 5/82:37 pm
SJU
- SAN
1 stop27h 49m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$327
This Kiwi.com deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:00 am
SAN
- SJU
1 stop13h 10m
Multiple Airlines
Thu 5/77:00 am
SJU
- SAN
2 stops19h 50m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$329
This Kiwi.com deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:25 am
SAN
- SJU
1 stop28h 07m
Multiple Airlines
Sat 5/306:25 am
SJU
- SAN
2 stops44h 19m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$341
This Kiwi.com deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/66:25 am
SAN
- SJU
2 stops22h 39m
Multiple Airlines
Mon 5/112:37 pm
SJU
- SAN
1 stop30h 22m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$352
This Kiwi.com deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:25 am
SAN
- SJU
2 stops32h 01m
Multiple Airlines
Sun 5/102:37 pm
SJU
- SAN
1 stop30h 48m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1412:09 pm
SAN
- SJU
2 stops32h 48m
Multiple Airlines
Sat 5/306:25 am
SJU
- SAN
1 stop15h 00m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$360
This Kiwi.com deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:25 am
SAN
- SJU
2 stops38h 32m
Multiple Airlines
Tue 5/197:00 am
SJU
- SAN
1 stop31h 44m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$361
This eDestinos deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:15 am
SAN
- SJU
2 stops27h 51m
Frontier
Fri 5/86:46 pm
SJU
- SAN
2 stops40h 56m
Frontier
Deal found 4/10![Frontier logo]()
$370
This Kiwi.com deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2412:25 pm
SAN
- SJU
2 stops26h 34m
Multiple Airlines
Thu 4/305:45 am
SJU
- SAN
1 stop20h 59m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$371
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 13, 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 13, 2026.
This Delta deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/510:15 pm
SAN
- SJU
1 stop12h 05m
Delta
Thu 6/112:04 pm
SJU
- SAN
1 stop11h 06m
Delta
Deal found 4/12![Delta logo]()
$386
This Southwest deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/410:20 am
SAN
- SJU
2 stops10h 35m
Southwest
Thu 5/75:05 am
SJU
- SAN
2 stops12h 00m
Southwest
Deal found 4/7![Southwest logo]()
$446
This United Airlines deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:32 am
SAN
- SJU
2 stops14h 18m
United Airlines
Wed 5/61:00 am
SJU
- SAN
2 stops13h 54m
United Airlines
Deal found 4/10![United Airlines logo]()
$476
This JetBlue deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/99:10 pm
SAN
- SJU
1 stop10h 14m
JetBlue
Sat 5/168:00 am
SJU
- SAN
1 stop15h 04m
JetBlue
Deal found 4/11![JetBlue logo]()
$548
This Delta deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1010:17 pm
SAN
- SJU
1 stop11h 38m
Delta
Fri 7/172:05 pm
SJU
- SAN
2 stops12h 25m
Delta
Deal found 4/10![Delta logo]()
$444
This Southwest deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:00 pm
SAN
- SJU
2 stops10h 55m
Southwest
Thu 5/76:50 am
SJU
- SAN
2 stops14h 05m
Southwest
Deal found 4/9![Southwest logo]()
$485
This Delta deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/276:51 pm
SAN
- SJU
2 stops13h 54m
Delta
Tue 5/56:15 am
SJU
- SAN
1 stop13h 23m
Delta
Deal found 4/11![Delta logo]()
$490
This Southwest deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/189:35 pm
SAN
- SJU
2 stops10h 00m
Southwest
Fri 5/226:50 am
SJU
- SAN
2 stops12h 00m
Southwest
Deal found 4/10![Southwest logo]()
$525
This Delta deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/46:51 pm
SAN
- SJU
2 stops13h 54m
Delta
Mon 5/112:35 pm
SJU
- SAN
1 stop10h 25m
Delta
Deal found 4/10![Delta logo]()
$490
This Southwest deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/86:30 am
SAN
- SJU
2 stops12h 00m
Southwest
Thu 6/116:00 am
SJU
- SAN
2 stops15h 45m
Southwest
Deal found 4/11![Southwest logo]()
$562
Last-minute flights from San Diego to San JuanDiscover last-minute flight deals from San Diego to San Juan. Data last updated April 13, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to San Juan. Data last updated April 13, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2412:25 pm
SAN
- SJU
2 stops26h 34m
Multiple Airlines
Thu 4/305:45 am
SJU
- SAN
1 stop20h 59m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$371
This Kiwi.com deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:00 am
SAN
- SJU
1 stop13h 10m
Multiple Airlines
Sat 5/96:30 am
SJU
- SAN
2 stops29h 12m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$318
This Kiwi.com deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/16:25 am
SAN
- SJU
2 stops38h 04m
Multiple Airlines
Fri 5/82:37 pm
SJU
- SAN
1 stop27h 49m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$327
This Kiwi.com deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:00 am
SAN
- SJU
1 stop13h 10m
Multiple Airlines
Thu 5/77:00 am
SJU
- SAN
2 stops19h 50m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$329
This eDestinos deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:15 am
SAN
- SJU
2 stops27h 51m
Frontier
Fri 5/86:46 pm
SJU
- SAN
2 stops40h 56m
Frontier
Deal found 4/10![Frontier logo]()
$370
This Kiwi.com deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:25 am
SAN
- SJU
2 stops32h 01m
Multiple Airlines
Sun 5/102:37 pm
SJU
- SAN
1 stop30h 48m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/66:25 am
SAN
- SJU
2 stops22h 39m
Multiple Airlines
Mon 5/112:37 pm
SJU
- SAN
1 stop30h 22m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$352
This Kiwi.com deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:25 am
SAN
- SJU
1 stop28h 07m
Multiple Airlines
Sat 5/306:25 am
SJU
- SAN
2 stops44h 19m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$341
This Kiwi.com deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:25 am
SAN
- SJU
2 stops38h 32m
Multiple Airlines
Tue 5/197:00 am
SJU
- SAN
1 stop31h 44m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$361
This Kiwi.com deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1412:09 pm
SAN
- SJU
2 stops32h 48m
Multiple Airlines
Sat 5/306:25 am
SJU
- SAN
1 stop15h 00m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$360
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 13, 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 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:15 am
SAN
- SJU
2 stops24h 24m
Frontier
Deal found 4/10![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:25 am
SAN
- SJU
2 stops38h 32m
Frontier
Deal found 4/9![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:25 am
SAN
- SJU
1 stop19h 24m
Frontier
Deal found 4/11![Frontier logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/86:25 am
SAN
- SJU
2 stops37h 18m
Frontier
Deal found 4/9![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/86:25 am
SAN
- SJU
1 stop28h 07m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$190
This Delta deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/110:15 pm
SAN
- SJU
1 stop12h 05m
Delta
Deal found 4/10![Delta logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/306:25 am
SAN
- SJU
2 stops38h 04m
Frontier
Deal found 4/12![Frontier logo]()
$196
This American Airlines deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:15 am
SAN
- SJU
1 stop13h 46m
American Airlines
Deal found 4/11![American Airlines logo]()
$199
This Delta deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/297:10 pm
SAN
- SJU
2 stops15h 10m
Delta
Deal found 4/8![Delta logo]()
$203
This Cheapflightsfares deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2811:45 am
SAN
- SJU
1 stop10h 53m
JetBlue
Deal found 4/9![JetBlue logo]()
$208
This Kiwi.com deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/66:25 am
SAN
- SJU
2 stops16h 43m
Frontier
Deal found 4/8![Frontier logo]()
$211
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 13, 2026.
Round-trip from | $318 (Kiwi.com) |
|---|---|
One-way from | $126 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $454 |
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 13, 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
Fri 6/5
10:15 pm-1:20 pm
1 stop12h 05m
San Juan Luis Munoz Marin Intl
Thu 6/11
2:04 pm-10:10 pm
1 stop11h 06m
$386
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Fri 7/10
10:17 pm-12:55 pm
1 stop11h 38m
San Juan Luis Munoz Marin Intl
Fri 7/17
2:05 pm-11:30 pm
2 stops12h 25m
$444
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Mon 5/4
10:20 am-11:55 pm
2 stops10h 35m
San Juan Luis Munoz Marin Intl
Thu 5/7
5:05 am-2:05 pm
2 stops12h 00m
$446
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Tue 5/5
6:32 am-11:50 pm
2 stops14h 18m
San Juan Luis Munoz Marin Intl
Wed 5/6
1:00 am-11:54 am
2 stops13h 54m
$476
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Fri 5/1
7:00 pm-8:55 am
2 stops10h 55m
San Juan Luis Munoz Marin Intl
Thu 5/7
6:50 am-5:55 pm
2 stops14h 05m
$485
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Mon 4/27
6:51 pm-11:45 am
2 stops13h 54m
San Juan Luis Munoz Marin Intl
Tue 5/5
6:15 am-4:38 pm
1 stop13h 23m
$490
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Mon 5/4
6:51 pm-11:45 am
2 stops13h 54m
San Juan Luis Munoz Marin Intl
Mon 5/11
2:35 pm-10:00 pm
1 stop10h 25m
$490
Quickest round-trip
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Mon 5/18
9:35 pm-10:35 am
2 stops10h 00m
San Juan Luis Munoz Marin Intl
Fri 5/22
6:50 am-3:50 pm
2 stops12h 00m
$525
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Sat 5/9
9:10 pm-10:24 am
1 stop10h 14m
San Juan Luis Munoz Marin Intl
Sat 5/16
8:00 am-8:04 pm
1 stop15h 04m
$548
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Mon 6/8
6:30 am-9:30 pm
2 stops12h 00m
San Juan Luis Munoz Marin Intl
Thu 6/11
6:00 am-6:45 pm
2 stops15h 45m
$562
Showing 1-10 of 18 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?
Use this chart to determine the optimal time to book a round-trip flight from San Diego to San Juan. Price data was last updated on April 10, 2026.
The price you pay for your flight from San Diego to San Juan may vary depending on when you book. For the best chance of a lower fare, look to book 63 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from San Diego to San Juan?
Currently, September is the cheapest month in which you can book a flight from San Diego to San Juan (average of $252). Flying from San Diego to San Juan in August is currently the most expensive (average of $355). 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 13, 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.
Comfort
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Overall
8.0
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 13, 2026.
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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 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$176 | Average$479 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$215 | Average$463 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$260 | Average$450 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$295 | Average$469 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$301 | Average$532 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$306 | Average$486 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$382 | Average$562 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$478 | Average$614 | FlexibilityNo cancel fee | On-time75% |