$75+ 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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
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
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 Austin Bergstrom to San Juan are usually found in October or September, booked 87 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday
Cheap flight deals from Austin to San Juan
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 dezembro 12, 2025.
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 dezembro 12, 2025.
This Kiwi.com deal was found by Cheapflights users on 12/11. 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.
This Kiwi.com deal was found by Cheapflights users on 12/11. 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.
This Booking.com deal was found by Cheapflights users on 12/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Priceline deal was found by Cheapflights users on 12/11. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Cheapflightsfares deal was found by Cheapflights users on 12/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This CheapOair deal was found by Cheapflights users on 12/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Cheapflightsfares deal was found by Cheapflights users on 12/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Travelocity deal was found by Cheapflights users on 12/11. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 12/11. 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.
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 dezembro 12, 2025.
Round-trip from | $197 (Kiwi.com) |
|---|---|
One-way from | $75 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $626 |
Cheapflights Fare Finder
Use the filters below to find and compare flights from Austin to San Juan that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
AustinSan Juan
AUS - SJU
AUSSJU
Austin Bergstrom
sáb 1/10
11:30 am-3:33 pm
1 stop26h 03m
San Juan Luis Munoz Marin Intl
sáb 1/17
8:57 am-11:21 pm
2 stops16h 24m
AustinSan Juan
AUS - SJU
AUSSJU
Austin Bergstrom
seg 1/26
6:00 am-3:30 pm
1 stop7h 30m
San Juan Luis Munoz Marin Intl
qui 1/29
5:25 pm-10:22 pm
1 stop6h 57m
AustinSan Juan
AUS - SJU
AUSSJU
Austin Bergstrom
sáb 5/2
2:45 pm-10:54 pm
1 stop7h 09m
San Juan Luis Munoz Marin Intl
sáb 5/9
6:15 am-3:54 pm
1 stop10h 39m
AustinSan Juan
AUS - SJU
AUSSJU
Austin Bergstrom
dom 2/15
7:39 pm-6:11 am
1 stop8h 32m
San Juan Luis Munoz Marin Intl
ter 2/24
7:45 am-1:13 pm
1 stop7h 28m
AustinSan Juan
AUS - SJU
AUSSJU
Austin Bergstrom
sáb 4/25
12:20 pm-8:06 pm
1 stop6h 46m
San Juan Luis Munoz Marin Intl
sex 5/1
6:15 am-12:41 pm
1 stop7h 26m
AustinSan Juan
AUS - SJU
AUSSJU
Austin Bergstrom
qui 4/30
9:25 pm-9:10 am
1 stop10h 45m
San Juan Luis Munoz Marin Intl
sex 5/8
5:35 am-5:45 pm
1 stop13h 10m
AustinSan Juan
AUS - SJU
AUSSJU
Austin Bergstrom
sex 5/1
5:20 am-1:10 pm
1 stop6h 50m
San Juan Luis Munoz Marin Intl
seg 5/11
5:35 am-5:45 pm
1 stop13h 10m
AustinSan Juan
AUS - SJU
AUSSJU
Austin Bergstrom
sáb 4/25
12:20 pm-8:06 pm
1 stop6h 46m
San Juan Luis Munoz Marin Intl
qui 4/30
6:15 am-5:14 pm
1 stop11h 59m
AustinSan Juan
AUS - SJU
AUSSJU
Austin Bergstrom
qui 2/5
4:59 pm-9:47 am
1 stop14h 48m
San Juan Luis Munoz Marin Intl
seg 2/9
6:00 am-4:04 pm
1 stop12h 04m
AustinSan Juan
AUS - SJU
AUSSJU
Austin Bergstrom
qua 4/22
7:10 am-3:42 pm
1 stop7h 32m
San Juan Luis Munoz Marin Intl
qua 5/6
1:00 am-1:09 pm
2 stops13h 09m
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.
Cheapflights Insights
Everything you need to know about your flight from Austin to San Juan
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 December 5, 2025.
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.
What is the cheapest time of day to fly from AUS to SJU?
Find hourly flight availability from Austin to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated dezembro 12, 2025.
It’s typically best to fly out from Austin to San Juan in the afternoon. Doing so could potentially save you 37% on the flight price compared to flying in the morning, which is usually more expensive.
What is the cheapest day to fly from Austin to San Juan?
Use this chart to determine the cheapest time to fly round-trip from Austin to San Juan. Price data was last updated on December 16, 2024.
Travelers seeking maximum savings on their Austin to San Juan flight should consider departing on Thursday mornings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
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 dezembro 12, 2025.
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
Boarding
Entertainment
Overall
Comfort
Crew
Reviews
Thomas,Dec 2025
SEA - DEN
Food
Boarding
Entertainment
Overall
Comfort
Crew
Reviews
Thomas,Dec 2025
SEA - DEN
Food
Boarding
Entertainment
Overall
Comfort
Crew
Reviews
Thomas,Dec 2025
SEA - DEN
Food
Boarding
Entertainment
Overall
Comfort
Crew
Reviews
Thomas,Dec 2025
SEA - DEN
Food
Boarding
Entertainment
Overall
Comfort
Crew
Reviews
Thomas,Dec 2025
SEA - DEN
Food
Boarding
Entertainment
Overall
Comfort
Crew
Reviews
Thomas,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.
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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 dezembro 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$126 | Average$337 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$150 | Average$294 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$226 | Average$385 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$245 | Average$415 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$248 | Average$438 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$265 | Average$509 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$325 | Average$620 | FlexibilityNo cancel fee | On-time62% |