$88+ Cheap flights from San Antonio (SAT) 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 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SJU
Apr 22 — Apr 291
Round-trip
1 adult, Economy
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Find cheap flights from San Antonio 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.Cheapflights Tip: The best prices from San Antonio to San Juan are usually found in September or October, booked 63 days in advance, depart on a Tuesday or Friday and return on a Thursday
Cheap flight deals from San Antonio to San Juan
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Last-minute
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Cheapest flights from San Antonio to San JuanExplore the most affordable flight options available from San Antonio to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 23, 2026.
Explore the most affordable flight options available from San Antonio to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/311:22 pm
SAT
- SJU
1 stop7h 37m
Spirit Airlines
Tue 4/712:55 pm
SJU
- SAT
2 stops24h 32m
Spirit Airlines
Deal found 3/19![Spirit Airlines logo]()
$274
This American Airlines deal was found by Cheapflights users on 3/18. 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 4/146:00 am
SAT
- SJU
2 stops11h 10m
American Airlines
Fri 4/1710:03 am
SJU
- SAT
1 stop14h 12m
American Airlines
Deal found 3/18![American Airlines logo]()
$276
This Cheapflightsfares deal was found by Cheapflights users on 3/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/11:22 pm
SAT
- SJU
1 stop7h 37m
Spirit Airlines
Fri 4/101:45 am
SJU
- SAT
1 stop11h 42m
Spirit Airlines
Deal found 3/18![Spirit Airlines logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 3/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/231:22 pm
SAT
- SJU
1 stop7h 37m
Spirit Airlines
Wed 4/812:05 pm
SJU
- SAT
2 stops22h 22m
Spirit Airlines
Deal found 3/20![Spirit Airlines logo]()
$278
This United Airlines deal was found by Cheapflights users on 3/19. 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 5/511:45 am
SAT
- SJU
2 stops11h 05m
United Airlines
Wed 5/61:00 am
SJU
- SAT
1 stop10h 34m
United Airlines
Deal found 3/19![United Airlines logo]()
$280
This CheapOair deal was found by Cheapflights users on 3/21. 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.
Tue 3/3110:22 am
SAT
- SJU
2 stops21h 31m
Spirit Airlines
Wed 4/81:45 am
SJU
- SAT
1 stop11h 42m
Spirit Airlines
Deal found 3/21![Spirit Airlines logo]()
$284
This Priceline deal was found by Cheapflights users on 3/21. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/302:13 pm
SAT
- SJU
1 stop8h 45m
Frontier
Fri 4/36:00 am
SJU
- SAT
1 stop12h 05m
Frontier
Deal found 3/21![Frontier logo]()
$288
This Cheapflightsfares deal was found by Cheapflights users on 3/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/241:22 pm
SAT
- SJU
1 stop7h 37m
Spirit Airlines
Mon 3/301:45 am
SJU
- SAT
1 stop11h 42m
Spirit Airlines
Deal found 3/20![Spirit Airlines logo]()
$290
This Expedia deal was found by Cheapflights users on 3/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3110:22 am
SAT
- SJU
2 stops21h 31m
Multiple Airlines
Fri 4/36:00 am
SJU
- SAT
1 stop12h 05m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$292
This Southwest deal was found by Cheapflights users on 3/19. 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.
Sat 4/2512:20 pm
SAT
- SJU
1 stop10h 20m
Southwest
Sat 5/26:25 am
SJU
- SAT
1 stop13h 20m
Southwest
Deal found 3/19![Southwest logo]()
$296
This Cheapflightsfares deal was found by Cheapflights users on 3/23. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/101:22 pm
SAT
- SJU
1 stop7h 37m
Spirit Airlines
Mon 4/131:45 am
SJU
- SAT
1 stop11h 42m
Spirit Airlines
Deal found 3/23![Spirit Airlines logo]()
$299
This Cheapflightsfares deal was found by Cheapflights users on 3/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1210:22 am
SAT
- SJU
1 stop7h 33m
Spirit Airlines
Tue 4/142:59 am
SJU
- SAT
1 stop11h 18m
Spirit Airlines
Deal found 3/19![Spirit Airlines logo]()
$300
Best flights from San Antonio to San JuanDiscover carefully curated flight deals from San Antonio to San Juan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 23, 2026.
Discover carefully curated flight deals from San Antonio to San Juan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 23, 2026.
This Delta deal was found by Cheapflights users on 3/21. 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.
Sun 4/265:20 am
SAT
- SJU
1 stop10h 03m
Delta
Wed 4/297:30 am
SJU
- SAT
1 stop8h 53m
Delta
Deal found 3/21![Delta logo]()
$336
This United Airlines deal was found by Cheapflights users on 3/19. 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.
Mon 4/276:49 am
SAT
- SJU
2 stops16h 01m
United Airlines
Wed 4/291:00 am
SJU
- SAT
1 stop10h 34m
United Airlines
Deal found 3/19![United Airlines logo]()
$386
This Southwest deal was found by Cheapflights users on 3/18. 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.
Sun 6/219:45 am
SAT
- SJU
1 stop13h 10m
Southwest
Thu 6/255:00 pm
SJU
- SAT
2 stops9h 00m
Southwest
Deal found 3/18![Southwest logo]()
$438
This Delta deal was found by Cheapflights users on 3/22. 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 5/912:08 pm
SAT
- SJU
1 stop7h 22m
Delta
Tue 5/125:43 pm
SJU
- SAT
1 stop8h 01m
Delta
Deal found 3/22![Delta logo]()
$336
This United Airlines deal was found by Cheapflights users on 3/21. 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 5/511:45 am
SAT
- SJU
2 stops11h 05m
United Airlines
Tue 5/121:00 am
SJU
- SAT
3 stops20h 35m
United Airlines
Deal found 3/21![United Airlines logo]()
$426
This Delta deal was found by Cheapflights users on 3/21. 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.
Tue 5/512:26 pm
SAT
- SJU
1 stop9h 47m
Delta
Tue 5/125:43 pm
SJU
- SAT
1 stop8h 01m
Delta
Deal found 3/21![Delta logo]()
$401
This Southwest deal was found by Cheapflights users on 3/19. 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.
Mon 6/83:10 pm
SAT
- SJU
2 stops9h 10m
Southwest
Mon 6/228:15 pm
SJU
- SAT
1 stop13h 10m
Southwest
Deal found 3/19![Southwest logo]()
$474
This Southwest deal was found by Cheapflights users on 3/18. 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 6/94:25 pm
SAT
- SJU
1 stop6h 20m
Southwest
Mon 6/2210:20 pm
SJU
- SAT
2 stops13h 50m
Southwest
Deal found 3/18![Southwest logo]()
$484
This Delta deal was found by Cheapflights users on 3/21. 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.
Tue 4/215:20 am
SAT
- SJU
1 stop10h 03m
Delta
Sun 4/265:34 pm
SJU
- SAT
1 stop8h 12m
Delta
Deal found 3/21![Delta logo]()
$481
This United Airlines deal was found by Cheapflights users on 3/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/36:49 am
SAT
- SJU
2 stops13h 35m
United Airlines
Sat 5/91:00 am
SJU
- SAT
2 stops12h 15m
United Airlines
Deal found 3/18![United Airlines logo]()
$540
This Southwest deal was found by Cheapflights users on 3/18. 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.
Thu 6/113:10 pm
SAT
- SJU
2 stops9h 10m
Southwest
Sat 6/209:25 pm
SJU
- SAT
1 stop11h 25m
Southwest
Deal found 3/18![Southwest logo]()
$506
This Southwest deal was found by Cheapflights users on 3/22. 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.
Thu 6/185:45 pm
SAT
- SJU
1 stop6h 35m
Southwest
Mon 6/2210:20 pm
SJU
- SAT
2 stops13h 50m
Southwest
Deal found 3/22![Southwest logo]()
$510
Last-minute flights from San Antonio to San JuanDiscover last-minute flight deals from San Antonio to San Juan. Data last updated March 23, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to San Juan. Data last updated March 23, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 3/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/231:22 pm
SAT
- SJU
1 stop7h 37m
Spirit Airlines
Wed 4/812:05 pm
SJU
- SAT
2 stops22h 22m
Spirit Airlines
Deal found 3/20![Spirit Airlines logo]()
$278
This Cheapflightsfares deal was found by Cheapflights users on 3/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/241:22 pm
SAT
- SJU
1 stop7h 37m
Spirit Airlines
Mon 3/301:45 am
SJU
- SAT
1 stop11h 42m
Spirit Airlines
Deal found 3/20![Spirit Airlines logo]()
$290
This Priceline deal was found by Cheapflights users on 3/21. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/302:13 pm
SAT
- SJU
1 stop8h 45m
Frontier
Fri 4/36:00 am
SJU
- SAT
1 stop12h 05m
Frontier
Deal found 3/21![Frontier logo]()
$288
This Kiwi.com deal was found by Cheapflights users on 3/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/311:22 pm
SAT
- SJU
1 stop7h 37m
Spirit Airlines
Tue 4/712:55 pm
SJU
- SAT
2 stops24h 32m
Spirit Airlines
Deal found 3/19![Spirit Airlines logo]()
$274
This Priceline deal was found by Cheapflights users on 3/18. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/312:13 pm
SAT
- SJU
1 stop10h 50m
Frontier
Fri 4/36:00 am
SJU
- SAT
1 stop12h 05m
Frontier
Deal found 3/18![Frontier logo]()
$280
This CheapOair deal was found by Cheapflights users on 3/21. 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.
Tue 3/3110:22 am
SAT
- SJU
2 stops21h 31m
Spirit Airlines
Wed 4/81:45 am
SJU
- SAT
1 stop11h 42m
Spirit Airlines
Deal found 3/21![Spirit Airlines logo]()
$284
This Expedia deal was found by Cheapflights users on 3/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3110:22 am
SAT
- SJU
2 stops21h 31m
Multiple Airlines
Fri 4/36:00 am
SJU
- SAT
1 stop12h 05m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$292
This Cheapflightsfares deal was found by Cheapflights users on 3/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/11:22 pm
SAT
- SJU
1 stop7h 37m
Spirit Airlines
Fri 4/101:45 am
SJU
- SAT
1 stop11h 42m
Spirit Airlines
Deal found 3/18![Spirit Airlines logo]()
$277
This Cheapflightsfares deal was found by Cheapflights users on 3/23. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/101:22 pm
SAT
- SJU
1 stop7h 37m
Spirit Airlines
Mon 4/131:45 am
SJU
- SAT
1 stop11h 42m
Spirit Airlines
Deal found 3/23![Spirit Airlines logo]()
$299
This Cheapflightsfares deal was found by Cheapflights users on 3/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1210:22 am
SAT
- SJU
1 stop7h 33m
Spirit Airlines
Tue 4/142:59 am
SJU
- SAT
1 stop11h 18m
Spirit Airlines
Deal found 3/19![Spirit Airlines logo]()
$300
This American Airlines deal was found by Cheapflights users on 3/18. 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 4/146:00 am
SAT
- SJU
2 stops11h 10m
American Airlines
Fri 4/1710:03 am
SJU
- SAT
1 stop14h 12m
American Airlines
Deal found 3/18![American Airlines logo]()
$276
This Southwest deal was found by Cheapflights users on 3/19. 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.
Sat 4/2512:20 pm
SAT
- SJU
1 stop10h 20m
Southwest
Sat 5/26:25 am
SJU
- SAT
1 stop13h 20m
Southwest
Deal found 3/19![Southwest logo]()
$296
One-way flights from San Antonio to San JuanSearch for one-way flight options from San Antonio to San Juan. Find affordable one-way fares based on user searches. Data last updated March 23, 2026.
Search for one-way flight options from San Antonio to San Juan. Find affordable one-way fares based on user searches. Data last updated March 23, 2026.
This Frontier deal was found by Cheapflights users on 3/22. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/186:30 pm
SAT
- SJU
1 stop6h 31m
Frontier
Deal found 3/22![Frontier logo]()
$88
This Kiwi.com deal was found by Cheapflights users on 3/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/311:22 pm
SAT
- SJU
1 stop7h 37m
Spirit Airlines
Deal found 3/19![Spirit Airlines logo]()
$93
This Frontier deal was found by Cheapflights users on 3/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/201:51 pm
SAT
- SJU
1 stop11h 10m
Frontier
Deal found 3/19![Frontier logo]()
$111
This eDestinos deal was found by Cheapflights users on 3/20. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/302:13 pm
SAT
- SJU
1 stop10h 45m
Frontier
Deal found 3/20![Frontier logo]()
$116
This Kiwi.com deal was found by Cheapflights users on 3/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/292:13 pm
SAT
- SJU
1 stop17h 40m
Multiple Airlines
Deal found 3/18![Multiple Airlines logo]()
$119
This Kiwi.com deal was found by Cheapflights users on 3/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/66:00 pm
SAT
- SJU
2 stops38h 18m
Frontier
Deal found 3/18![Frontier logo]()
$128
Find flight deals from San Antonio to San Juan
Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) 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 March 23, 2026.
Round-trip from | $276 (American Airlines) |
|---|---|
One-way from | $88 (Frontier) |
Popular in | December |
Cheapest in | September |
Average price | $416 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Antonio 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 March 23, 2026.
Use the filters below to find and compare flights from San Antonio to San Juan that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San AntonioSan Juan
SAT - SJU
SATSJU
San Antonio
Sun 4/26
5:20 am-4:23 pm
1 stop10h 03m
San Juan Luis Munoz Marin Intl
Wed 4/29
7:30 am-3:23 pm
1 stop8h 53m
$336
Quickest round-trip
San AntonioSan Juan
SAT - SJU
SATSJU
San Antonio
Sat 5/9
12:08 pm-8:30 pm
1 stop7h 22m
San Juan Luis Munoz Marin Intl
Tue 5/12
5:43 pm-12:44 am
1 stop8h 01m
$336
San AntonioSan Juan
SAT - SJU
SATSJU
San Antonio
Mon 4/27
6:49 am-11:50 pm
2 stops16h 01m
San Juan Luis Munoz Marin Intl
Wed 4/29
1:00 am-10:34 am
1 stop10h 34m
$386
San AntonioSan Juan
SAT - SJU
SATSJU
San Antonio
Tue 5/5
12:26 pm-11:13 pm
1 stop9h 47m
San Juan Luis Munoz Marin Intl
Tue 5/12
5:43 pm-12:44 am
1 stop8h 01m
$401
San AntonioSan Juan
SAT - SJU
SATSJU
San Antonio
Tue 5/5
11:45 am-11:50 pm
2 stops11h 05m
San Juan Luis Munoz Marin Intl
Tue 5/12
1:00 am-8:35 pm
3 stops20h 35m
$426
San AntonioSan Juan
SAT - SJU
SATSJU
San Antonio
Sun 6/21
9:45 am-11:55 pm
1 stop13h 10m
San Juan Luis Munoz Marin Intl
Thu 6/25
5:00 pm-1:00 am
2 stops9h 00m
$438
San AntonioSan Juan
SAT - SJU
SATSJU
San Antonio
Mon 6/8
3:10 pm-1:20 am
2 stops9h 10m
San Juan Luis Munoz Marin Intl
Mon 6/22
8:15 pm-8:25 am
1 stop13h 10m
$474
San AntonioSan Juan
SAT - SJU
SATSJU
San Antonio
Tue 4/21
5:20 am-4:23 pm
1 stop10h 03m
San Juan Luis Munoz Marin Intl
Sun 4/26
5:34 pm-12:46 am
1 stop8h 12m
$481
San AntonioSan Juan
SAT - SJU
SATSJU
San Antonio
Tue 6/9
4:25 pm-11:45 pm
1 stop6h 20m
San Juan Luis Munoz Marin Intl
Mon 6/22
10:20 pm-11:10 am
2 stops13h 50m
$484
San AntonioSan Juan
SAT - SJU
SATSJU
San Antonio
Thu 6/11
3:10 pm-1:20 am
2 stops9h 10m
San Juan Luis Munoz Marin Intl
Sat 6/20
9:25 pm-7:50 am
1 stop11h 25m
$506
Showing 1-10 of 24 resultsSorted by cheapest first
Best time to book a flight from San Antonio to San Juan
Have a flexible travel schedule? Discover the best time to fly to San Juan from San Antonio with our price prediction graph.
SAT-PR1
SAT-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 Antonio to San Juan
SAT-PR1
SAT-SJU
How far ahead should I book a flight from San Antonio to San Juan?
Use this chart to determine the optimal time to book a round-trip flight from San Antonio to San Juan. Price data was last updated on March 13, 2026.
To ensure you get the cheapest price possible for a flight from San Antonio to San Juan, you should look to book at least 63 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from San Antonio to San Juan?
Currently, September is the cheapest month in which you can book a flight from San Antonio to San Juan (average of $116). Flying from San Antonio to San Juan in August is currently the most expensive (average of $198). 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 often are flights from San Antonio to San Juan delayed?
About 21% of weekly flights between San Antonio and San Juan have experienced delays in the past year, with the average delay time being 128 minutes.
What is the most punctual flight time for San Antonio to San Juan flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Saturday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on San Antonio to San Juan flights?
Over the last year, Spirit Airlines have had the lowest number of delays on this route, with just 21% of flights being delayed.
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 March 23, 2026.
Read through reviews of airlines operating flights from San Antonio to San Juan, such as Southwest,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Boarding
8.1
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Boarding
8.1
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Boarding
8.1
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Boarding
8.1
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Boarding
8.1
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Boarding
8.1
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Related info for your journey
Find useful and relevant information for your journey from San Antonio 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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Complete your trip
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Find flights from San Antonio to San Juan, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Antonio and San Juan flights
Browse other San Antonio and San Juan flight options. Last updated on March 23, 2026.
Other flights from San Antonio
Browse through other flights departing from San Antonio. Flights are based on user searches made on Cheapflights and were last updated on March 23, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 6 airlines flying from San Antonio to San Juan
Discover the top 6 airlines that operate flights from San Antonio 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 March 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$121 | Average$292 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$138 | Average$357 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$168 | Average$359 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$219 | Average$434 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$260 | Average$509 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$265 | Average$488 | FlexibilityNo cancel fee | On-time63% |