$112+ Cheap flights from Austin (AUS) 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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SJU
Mar 5 — Mar 121
1 adult, Economy
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Find cheap flights from Austin 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
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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 Austin to San Juan
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Cheapest flights from Austin to San JuanExplore the most affordable flight options available from Austin to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.
Explore the most affordable flight options available from Austin to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.
This Priceline deal was found by Cheapflights users on 2/2. 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.
Thu 4/168:36 pm
AUS
- SJU
1 stop28h 25m
Frontier
Sun 4/193:08 am
SJU
- AUS
1 stop17h 38m
Frontier
Deal found 2/2![Frontier logo]()
$202
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/47:15 am
AUS
- SJU
2 stops16h 22m
Multiple Airlines
Sat 3/74:41 pm
SJU
- AUS
1 stop18h 48m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$203
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 2/247:15 am
AUS
- SJU
1 stop6h 16m
Multiple Airlines
Thu 3/126:46 pm
SJU
- AUS
2 stops21h 30m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$205
This CheapOair deal was found by Cheapflights users on 2/2. 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 3/37:15 am
AUS
- SJU
1 stop6h 16m
Multiple Airlines
Tue 3/107:00 am
SJU
- AUS
1 stop15h 59m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$208
This Expedia deal was found by Cheapflights users on 2/2. 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.
Thu 3/57:15 am
AUS
- SJU
1 stop6h 16m
Spirit Airlines
Tue 3/105:00 am
SJU
- AUS
1 stop12h 04m
Spirit Airlines
Deal found 2/2![Spirit Airlines logo]()
$209
This CheapOair deal was found by Cheapflights users on 2/2. 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.
Wed 4/157:20 am
AUS
- SJU
1 stop6h 11m
Spirit Airlines
Tue 4/213:36 pm
SJU
- AUS
1 stop6h 59m
Spirit Airlines
Deal found 2/2![Spirit Airlines logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 5/57:20 am
AUS
- SJU
1 stop6h 11m
Spirit Airlines
Tue 5/123:36 pm
SJU
- AUS
1 stop6h 59m
Spirit Airlines
Deal found 2/1![Spirit Airlines logo]()
$211
This Super.com deal was found by Cheapflights users on 2/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/247:15 am
AUS
- SJU
1 stop6h 16m
Spirit Airlines
Thu 3/1212:55 pm
SJU
- AUS
1 stop12h 29m
Spirit Airlines
Deal found 2/2![Spirit Airlines logo]()
$212
This CheapOair deal was found by Cheapflights users on 2/2. 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.
Thu 4/238:36 pm
AUS
- SJU
1 stop16h 30m
Frontier
Sun 4/263:08 am
SJU
- AUS
1 stop17h 38m
Frontier
Deal found 2/2![Frontier logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 3/711:34 am
AUS
- SJU
1 stop9h 39m
Multiple Airlines
Tue 3/241:45 am
SJU
- AUS
2 stops15h 19m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$214
This Expedia deal was found by Cheapflights users on 2/1. 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.
Sat 3/74:59 pm
AUS
- SJU
1 stop14h 18m
Spirit Airlines
Tue 3/105:00 am
SJU
- AUS
1 stop12h 04m
Spirit Airlines
Deal found 2/1![Spirit Airlines logo]()
$215
This Expedia deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/117:15 am
AUS
- SJU
1 stop6h 16m
Spirit Airlines
Wed 3/1812:55 pm
SJU
- AUS
1 stop12h 29m
Spirit Airlines
Deal found 2/2![Spirit Airlines logo]()
$216
Best flights from Austin to San JuanDiscover carefully curated flight deals from Austin to San Juan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 3, 2026.
Discover carefully curated flight deals from Austin to San Juan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 3, 2026.
This CheapOair deal was found by Cheapflights users on 2/2. 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.
Thu 4/94:59 pm
AUS
- SJU
1 stop24h 56m
Spirit Airlines
Mon 4/137:54 pm
SJU
- AUS
1 stop21h 10m
Spirit Airlines
Deal found 2/2![Spirit Airlines logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/274:59 pm
AUS
- SJU
1 stop27h 35m
Multiple Airlines
Thu 4/27:54 pm
SJU
- AUS
1 stop21h 10m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$224
This Southwest deal was found by Cheapflights users on 2/2. 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 4/77:35 am
AUS
- SJU
1 stop6h 15m
Southwest
Sat 4/112:25 pm
SJU
- AUS
Nonstop5h 15m
Southwest
Deal found 2/2![Southwest logo]()
$262
This Delta deal was found by Cheapflights users on 2/2. 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 2/241:44 pm
AUS
- SJU
1 stop8h 14m
Delta
Fri 2/276:42 pm
SJU
- AUS
1 stop7h 40m
Delta
Deal found 2/2![Delta logo]()
$266
This CheapOair deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/236:12 am
AUS
- SJU
1 stop11h 43m
Spirit Airlines
Sat 3/287:54 pm
SJU
- AUS
1 stop29h 30m
Spirit Airlines
Deal found 2/2![Spirit Airlines logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/711:34 am
AUS
- SJU
1 stop9h 39m
Multiple Airlines
Tue 3/103:36 pm
SJU
- AUS
1 stop30h 17m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$245
This Southwest deal was found by Cheapflights users on 2/2. 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 5/44:35 pm
AUS
- SJU
1 stop5h 50m
Southwest
Sat 5/92:25 pm
SJU
- AUS
Nonstop5h 15m
Southwest
Deal found 2/2![Southwest logo]()
$262
This Delta deal was found by Cheapflights users on 2/1. 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 2/235:30 am
AUS
- SJU
1 stop9h 57m
Delta
Sat 2/286:15 am
SJU
- AUS
1 stop11h 31m
Delta
Deal found 2/1![Delta logo]()
$266
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/184:59 pm
AUS
- SJU
2 stops14h 54m
Spirit Airlines
Tue 3/2412:55 pm
SJU
- AUS
1 stop12h 29m
Spirit Airlines
Deal found 2/3![Spirit Airlines logo]()
$259
This Southwest deal was found by Cheapflights users on 2/2. 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 4/64:00 pm
AUS
- SJU
1 stop5h 55m
Southwest
Sat 4/112:25 pm
SJU
- AUS
Nonstop5h 15m
Southwest
Deal found 2/2![Southwest logo]()
$262
This Delta deal was found by Cheapflights users on 2/1. 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 2/225:30 am
AUS
- SJU
1 stop9h 57m
Delta
Sat 2/286:15 am
SJU
- AUS
1 stop9h 09m
Delta
Deal found 2/1![Delta logo]()
$266
Last-minute flights from Austin to San JuanDiscover last-minute flight deals from Austin to San Juan. Data last updated February 3, 2026 and is based on user searches.
Discover last-minute flight deals from Austin to San Juan. Data last updated February 3, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 2/1. 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.
Sat 2/217:15 am
AUS
- SJU
1 stop6h 16m
Spirit Airlines
Sat 2/286:00 am
SJU
- AUS
1 stop12h 04m
Spirit Airlines
Deal found 2/1![Spirit Airlines logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 2/247:15 am
AUS
- SJU
1 stop6h 16m
Multiple Airlines
Thu 3/126:46 pm
SJU
- AUS
2 stops21h 30m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$205
This Super.com deal was found by Cheapflights users on 2/1. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/247:15 am
AUS
- SJU
1 stop6h 16m
Spirit Airlines
Thu 3/1212:55 pm
SJU
- AUS
1 stop12h 29m
Spirit Airlines
Deal found 2/1![Spirit Airlines logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 1/31. 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 2/247:15 am
AUS
- SJU
1 stop6h 16m
Spirit Airlines
Wed 3/115:00 am
SJU
- AUS
1 stop12h 04m
Spirit Airlines
Deal found 1/31![Spirit Airlines logo]()
$218
This CheapOair deal was found by Cheapflights users on 2/2. 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 3/37:15 am
AUS
- SJU
1 stop6h 16m
Multiple Airlines
Tue 3/107:00 am
SJU
- AUS
1 stop15h 59m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$208
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/47:15 am
AUS
- SJU
2 stops16h 22m
Multiple Airlines
Sat 3/74:41 pm
SJU
- AUS
1 stop18h 48m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$203
This Expedia deal was found by Cheapflights users on 2/2. 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.
Thu 3/57:15 am
AUS
- SJU
1 stop6h 16m
Spirit Airlines
Tue 3/105:00 am
SJU
- AUS
1 stop12h 04m
Spirit Airlines
Deal found 2/2![Spirit Airlines logo]()
$209
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 3/711:34 am
AUS
- SJU
1 stop9h 39m
Multiple Airlines
Tue 3/241:45 am
SJU
- AUS
2 stops15h 19m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$214
This Expedia deal was found by Cheapflights users on 2/1. 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.
Sat 3/74:59 pm
AUS
- SJU
1 stop14h 18m
Spirit Airlines
Tue 3/105:00 am
SJU
- AUS
1 stop12h 04m
Spirit Airlines
Deal found 2/1![Spirit Airlines logo]()
$215
This Expedia deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/117:15 am
AUS
- SJU
1 stop6h 16m
Spirit Airlines
Wed 3/1812:55 pm
SJU
- AUS
1 stop12h 29m
Spirit Airlines
Deal found 2/2![Spirit Airlines logo]()
$216
One-way flights from Austin to San JuanSearch for one-way flight options from Austin to San Juan. Find affordable one-way fares based on user searches. Data last updated February 3, 2026.
Search for one-way flight options from Austin to San Juan. Find affordable one-way fares based on user searches. Data last updated February 3, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 2/3. 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 4/247:20 am
AUS
- SJU
1 stop9h 38m
Spirit Airlines
Deal found 2/3![Spirit Airlines logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/211:34 am
AUS
- SJU
1 stop25h 57m
Spirit Airlines
Deal found 2/2![Spirit Airlines logo]()
$113
This CheapOair deal was found by Cheapflights users on 2/3. 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.
Fri 4/36:12 am
AUS
- SJU
1 stop16h 46m
Spirit Airlines
Deal found 2/3![Spirit Airlines logo]()
$114
This CheapOair deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/236:12 am
AUS
- SJU
1 stop28h 37m
Spirit Airlines
Deal found 2/1![Spirit Airlines logo]()
$115
This Mytrip deal was found by Cheapflights users on 2/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/247:15 am
AUS
- SJU
2 stops16h 22m
Spirit Airlines
Deal found 2/3![Spirit Airlines logo]()
$117
This Mytrip deal was found by Cheapflights users on 2/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/255:50 am
AUS
- SJU
2 stops12h 05m
Spirit Airlines
Deal found 2/2![Spirit Airlines logo]()
$118
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 3/304:59 pm
AUS
- SJU
1 stop17h 50m
Spirit Airlines
Deal found 2/1![Spirit Airlines logo]()
$119
This Frontier deal was found by Cheapflights users on 2/3. 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.
Thu 3/198:36 pm
AUS
- SJU
1 stop11h 18m
Frontier
Deal found 2/3![Frontier logo]()
$120
This CheapOair deal was found by Cheapflights users on 2/3. 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 3/318:12 pm
AUS
- SJU
2 stops14h 37m
Spirit Airlines
Deal found 2/3![Spirit Airlines logo]()
$121
This Frontier deal was found by Cheapflights users on 2/3. 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 4/134:44 pm
AUS
- SJU
1 stop7h 08m
Frontier
Deal found 2/3![Frontier logo]()
$122
This Mytrip deal was found by Cheapflights users on 2/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/215:50 am
AUS
- SJU
2 stops17h 08m
Spirit Airlines
Deal found 2/3![Spirit Airlines logo]()
$123
This Cheapflightsfares deal was found by Cheapflights users on 2/3. 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 2/184:59 pm
AUS
- SJU
1 stop15h 18m
Spirit Airlines
Deal found 2/3![Spirit Airlines logo]()
$124
Find flight deals from Austin to San Juan
Discover tips and strategies to find the most affordable flight options for your journey from Austin (AUS) 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 February 3, 2026.
Round-trip from | $202 (Priceline) |
|---|---|
One-way from | $112 (Cheapflightsfares) |
Popular in | December |
Cheapest in | October |
Average price | $383 |
Cheapflights Fare Finder
Customize your flight search to find flights from Austin 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 February 3, 2026.
Use the filters below to find and compare flights from Austin to San Juan that are best for you.
Fly from
Austin
Fly to
San Juan
Route
Depart
Return
Price
AustinSan Juan
AUS - SJU
AUSSJU
Austin Bergstrom
Thu 4/9
4:59 pm-6:55 pm
1 stop24h 56m
San Juan Luis Munoz Marin Intl
Mon 4/13
7:54 pm-4:04 pm
1 stop21h 10m
$217
AustinSan Juan
AUS - SJU
AUSSJU
Austin Bergstrom
Fri 3/27
4:59 pm-9:34 pm
1 stop27h 35m
San Juan Luis Munoz Marin Intl
Thu 4/2
7:54 pm-4:04 pm
1 stop21h 10m
$224
AustinSan Juan
AUS - SJU
AUSSJU
Austin Bergstrom
Mon 3/23
6:12 am-6:55 pm
1 stop11h 43m
San Juan Luis Munoz Marin Intl
Sat 3/28
7:54 pm-12:24 am
1 stop29h 30m
$230
AustinSan Juan
AUS - SJU
AUSSJU
Austin Bergstrom
Sat 3/7
11:34 am-11:13 pm
1 stop9h 39m
San Juan Luis Munoz Marin Intl
Tue 3/10
3:36 pm-8:53 pm
1 stop30h 17m
$245
AustinSan Juan
AUS - SJU
AUSSJU
Austin Bergstrom
Wed 3/18
4:59 pm-8:53 am
2 stops14h 54m
San Juan Luis Munoz Marin Intl
Tue 3/24
12:55 pm-12:24 am
1 stop12h 29m
$259
AustinSan Juan
AUS - SJU
AUSSJU
Austin Bergstrom
Tue 4/7
7:35 am-2:50 pm
1 stop6h 15m
San Juan Luis Munoz Marin Intl
Sat 4/11
2:25 pm-6:40 pm
Nonstop5h 15m
$262
AustinSan Juan
AUS - SJU
AUSSJU
Austin Bergstrom
Mon 5/4
4:35 pm-11:25 pm
1 stop5h 50m
San Juan Luis Munoz Marin Intl
Sat 5/9
2:25 pm-6:40 pm
Nonstop5h 15m
$262
AustinSan Juan
AUS - SJU
AUSSJU
Austin Bergstrom
Mon 4/6
4:00 pm-10:55 pm
1 stop5h 55m
San Juan Luis Munoz Marin Intl
Sat 4/11
2:25 pm-6:40 pm
Nonstop5h 15m
$262
AustinSan Juan
AUS - SJU
AUSSJU
Austin Bergstrom
Tue 2/24
1:44 pm-11:58 pm
1 stop8h 14m
San Juan Luis Munoz Marin Intl
Fri 2/27
6:42 pm-12:22 am
1 stop7h 40m
$266
AustinSan Juan
AUS - SJU
AUSSJU
Austin Bergstrom
Mon 2/23
5:30 am-5:27 pm
1 stop9h 57m
San Juan Luis Munoz Marin Intl
Sat 2/28
6:15 am-3:46 pm
1 stop11h 31m
$266
Showing 1-10 of 21 results
Best time to book a flight from Austin to San Juan
Have a flexible travel schedule? Discover the best time to fly to San Juan from Austin with our price prediction graph.
AUS-PR1
AUS-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 Austin to San Juan
AUS-PR1
AUS-SJU
How far ahead should I book a flight from Austin to San Juan?
Use this chart to determine the optimal time to book a round-trip flight from Austin to San Juan. Price data was last updated on January 30, 2026.
Booking 87 days in advance of your planned departure date is, on average, the best time to get cheap flights from Austin to San Juan. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Austin to San Juan?
Currently, September is the cheapest month in which you can book a flight from Austin to San Juan (average of $116). Flying from Austin to San Juan in August is currently the most expensive (average of $199). 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.
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 February 3, 2026.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Austin to San Juan by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Crew
8.6
Comfort
8.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Comfort
8.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Comfort
8.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Comfort
8.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Comfort
8.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Comfort
8.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from Austin 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
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Alternative routes for Austin to San Juan
See prices for flight routes from nearby airports that may be better suited for you.
Top 7 airlines flying from Austin to San Juan
Discover the top 7 airlines that operate flights from Austin 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 February 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$123 | Average$333 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$141 | Average$296 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$174 | Average$377 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$244 | Average$433 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$245 | Average$406 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$261 | Average$491 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$277 | Average$544 | FlexibilityNo cancel fee | On-time62% |