Cheap Flights from Austin, TX to San Juan from $116

On Cheapflightsplus.com you will find 269 connecting flights from Austin to San Juan. You can compare airfare deals from 5 airlines and multiple travel sites from $116, book and save on cheap plane tickets and last minute offers. Also check out AUS-SJU flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Austin to San Juan Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $116 (one-way), $199 (round-trip).
Direct flights
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Full flight schedule will help you in detecting at what time planes fly from Austin to San Juan. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
05:00 — 05:30
+1 day
05:00 — 05:58 UA1966 United Airlines
Austin — Houston
17h 59m stop
23:57 — 05:30 UA1497 United Airlines
Houston — San Juan
23h 30m
including layover
Find flight
from$255
05:00 — 05:30
+1 day
05:00 — 06:01 UA6170 United Airlines
Austin — Houston
17h 56m stop
23:57 — 05:30 UA1497 United Airlines
Houston — San Juan
23h 30m
including layover
Find flight
from$269
06:09 — 23:57
+1 day
06:00 — 10:43 UA1760 United Airlines
Austin — Newark
8h 54m stop
19:53 — 23:57 UA1543 United Airlines
Newark — San Juan
16h 48m
including layover
Find flight
from$290
07:00 — 23:54
+1 day
07:00 — 09:55 UA1878 United Airlines
Austin — Chicago
8h 8m stop
18:03 — 23:54 UA695 United Airlines
Chicago — San Juan
15h 54m
including layover
Find flight
from$263
07:15 — 21:24
07:15 — 11:31 UA525 United Airlines
Austin — Washington D.C.
5h 55m stop
17:28 — 21:24 UA2025 United Airlines
Washington D.C. — San Juan
13h 9m
including layover
Find flight
from$262
10:19 — 23:54
+1 day
10:19 — 13:15 UA202 United Airlines
Austin — Chicago
4h 48m stop
18:03 — 23:54 UA695 United Airlines
Chicago — San Juan
12h 35m
including layover
Find flight
from$263
10:38 — 20:54
18:35 — 22:20 F94124 Frontier Airlines
Austin — Miami
3h 35m stop
06:30 — 09:12 F92284 Frontier Airlines
Miami — San Juan
9h 16m
including layover
Find flight
from$223
11:47 — 10:29
+1 day
11:47 — 15:56 G4263 Allegiant Air
Austin — Baltimore
14h 52m stop
06:48 — 10:29 NK1622 Spirit Airlines
Baltimore — San Juan
21h 42m
including layover
Find flight
from$149
11:55 — 01:31
+1 day
11:55 — 15:30 NK2289 Spirit Airlines
Austin — Orlando
7h 9m stop
22:39 — 01:31 NK2395 Spirit Airlines
Orlando — San Juan
12h 36m
including layover
Find flight
from$180
12:11 — 21:24
12:11 — 16:27 UA2344 United Airlines
Austin — Washington D.C.
1h 1m stop
17:28 — 21:24 UA2025 United Airlines
Washington D.C. — San Juan
8h 13m
including layover
Find flight
from$200
12:11 — 12:34
+1 day
12:09 — 16:25 UA2344 United Airlines
Austin — Washington D.C.
16h 13m stop
08:40 — 12:34 UA2021 United Airlines
Washington D.C. — San Juan
23h 23m
including layover
Find flight
from$325
14:15 — 20:38
+1 day
14:15 — 15:27 UA6116 United Airlines
Austin — Houston
23h 35m stop
15:02 — 20:38 UA701 United Airlines
Houston — San Juan
29h 23m
including layover
Find flight
from$171
14:15 — 05:30
+1 day
14:15 — 15:27 UA6116 United Airlines
Austin — Houston
8h 30m stop
23:57 — 05:30 UA1497 United Airlines
Houston — San Juan
14h 15m
including layover
Find flight
from$250
16:23 — 20:38
+1 day
16:23 — 17:25 UA283 United Airlines
Austin — Houston
21h 37m stop
15:02 — 20:38 UA701 United Airlines
Houston — San Juan
27h 15m
including layover
Find flight
from$171
16:56 — 09:04
+1 day
16:51 — 20:40 F94524 Frontier Airlines
Austin — Orlando
9h 20m stop
06:05 — 09:04 F92250 Frontier Airlines
Orlando — San Juan
15h 8m
including layover
Find flight
from$116
17:29 — 14:44
+1 day
17:16 — 20:10 UA1990 United Airlines
Austin — Chicago
12h 26m stop
08:49 — 14:44 UA1996 United Airlines
Chicago — San Juan
20h 15m
including layover
Find flight
from$267
17:29 — 23:54
+2 days
17:16 — 20:10 UA1990 United Airlines
Austin — Chicago
21h 40m stop
18:03 — 23:54 UA695 United Airlines
Chicago — San Juan
29h 25m
including layover
Find flight
from$267
18:15 — 09:56
+1 day
18:15 — 22:05 NK510 Spirit Airlines
Austin — Orlando
8h 55m stop
07:00 — 09:56 NK3159 Spirit Airlines
Orlando — San Juan
14h 41m
including layover
Find flight
from$122
18:41 — 22:58
+1 day
18:41 — 23:37 NK1721 Spirit Airlines
Austin — Newark
19h 22m stop
18:59 — 22:58 NK1226 Spirit Airlines
Newark — San Juan
27h 17m
including layover
Find flight
from$159
19:24 — 09:54
+1 day
19:24 — 23:59 F91842 Frontier Airlines
Austin — Philadelphia
5h 58m stop
06:00 — 09:54 F91016 Frontier Airlines
Philadelphia — San Juan
13h 30m
including layover
Find flight
from$252
19:51 — 05:30
+1 day
19:43 — 20:47 UA789 United Airlines
Austin — Houston
3h 2m stop
23:57 — 05:30 UA1497 United Airlines
Houston — San Juan
8h 39m
including layover
Find flight
from$173
20:57 — 12:20
+1 day
20:57 — 00:33 NK1619 Spirit Airlines
Austin — Orlando
9h 1m stop
09:34 — 12:20 NK1989 Spirit Airlines
Orlando — San Juan
14h 23m
including layover
Find flight
from$138
*Departure and arrival times - local. Updated on June 7, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Austin to San Juan depends on and how to choose the most interesting flight option for you.

Distance between Austin and San Juan is 3450 miles. Time difference between the cities is 2h. Airplanes depart 05:00 to 20:57 from 3 Austin airports and arrive 05:00 to 20:57 to 2 San Juan airports. Average flight time is 21h 11m.

  • The fastest flight 6h 41m
  • Average flight time 21h 11m
  • The earliest flight 05:00
  • The latest flight 20:57
  • Distance 2144 ml

The cheapest months to travel to San Juan are july (from 155 $), august (from 163 $), may (from 192 $).

The most expensive months are december (from 721 $), november (from 604 $), june (from 241 $).

What is the lowest airfare Austin to San Juan?

The cheapest plane ticket found by our users is $116. This airfare is for economy class on one-way F94524 flight by Frontier Airlines for July 13, 2025 which leaves Austin-Bergstrom Intl in Austin at 16:56 am and arrives at San Juan Luis Munoz Marin Intl at 09:04.

Economy class
$116
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Business class
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First class
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Popular Airlines on the Route

The flight Austin — San Juan is served by 5 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 5 departures per week at the price of from $ 360 . And the most expensive tickets are offered by Alaska Airlines airline - from $ 762.

Direct flights

There’re no direct flights on this route. Try flights with stops.

Connecting Flights

There are 269 flights with layovers on the route. The fastest connecting flight is F94524 by Frontier Airlines takes 6h 41m and the cheapest is F94524 by Frontier Airlines for $116.

  • AS - Alaska Airlines
    from $360
    Find
  • F9 - Frontier Airlines
    from $116
    Find
  • UA - United Airlines
    from $171
    Find
  • NK - Spirit Airlines
    from $122
    Find
  • G4 - Allegiant Air
    from $149
    Find
See more connecting flights

Airports

You can fly from Austin to San Juan from 3 airports (Austin-Bergstrom Intl, Austin, Camp Maybry AHP).

Austin airports

  • Austin-Bergstrom Intl-AUS
    from $116
    Find
  • Austin-ASQ
    Find
  • Camp Maybry AHP-MMR
    Find

San Juan airports

  • Isla Grande-SIG
    Find
  • Luis Munoz Marin Intl-SJU
    Find

How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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