Cheap Flights from Austin, TX to San Juan from $145

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On Cheapflightsplus.com you will find 367 connecting flights from Austin to San Juan. You can compare airfare deals from 5 airlines and multiple travel sites from $145, 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: $145 (one-way), $249 (round-trip).
Direct flights
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Best Flights from Austin to San Juan Today

Take a look at the list of non stop flights and flights with layovers from Austin to San Juan with the lowest price of $145. Take a look at the list of flights with layovers from Austin to San Juan from $145. There’re no direct flights. The fastest connecting flight – 6h 29m.
Price Departure Arrival Flight Duration Airline Flight
from $145
Find flight
07:14
Austin
Austin-Bergstrom Intl
 19:07
San Juan
Luis Munoz Marin Intl
 10h 53m
layover
5h 35m - Miami
 Spirit Airlines
NK2719
NK2221
from $145
Find flight
11:30
Austin
Austin-Bergstrom Intl
 23:53+1 день
San Juan
Luis Munoz Marin Intl
 11h 23m
layover
3h 52m - Philadelphia
 Frontier Airlines
F91842
F94462
from $192
Find flight
10:00
Austin
Austin-Bergstrom Intl
 10:06+1 день
San Juan
Luis Munoz Marin Intl
 23h 6m
layover
2h 53m - Indianapolis
12h 42m - Miami
 Allegiant Air
G4587
G4591
NK1396
from $199
Find flight
09:50
Austin
Austin-Bergstrom Intl
 09:56+1 день
San Juan
Luis Munoz Marin Intl
 23h 6m
layover
8h 4m - Miami
8h 0m - Orlando
 Spirit Airlines
NK512
NK676
NK3159
Show all tickets
*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on September 18, 2025
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
07:14 — 19:07
07:14 — 11:02 NK2719 Spirit Airlines
Austin — Miami
5h 35m stop
16:37 — 19:07 NK2221 Spirit Airlines
Miami — San Juan
10h 53m
including layover
Find flight
from$145
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$184
11:30 — 23:53
+1 day
11:30 — 16:06 F91842 Frontier Airlines
Austin — Philadelphia
3h 52m stop
20:01 — 23:54 F94462 Frontier Airlines
Philadelphia — San Juan
11h 23m
including layover
Find flight
from$145
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$191
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$219
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$149
17:56 — 08:58
+1 day
17:56 — 21:39 F94526 Frontier Airlines
Austin — Orlando
8h 21m stop
06:00 — 08:58 F92250 Frontier Airlines
Orlando — San Juan
14h 2m
including layover
Find flight
from$156
17:56 — 00:21
+2 days
17:56 — 21:39 F94526 Frontier Airlines
Austin — Orlando
23h 47m stop
21:26 — 00:21 F91746 Frontier Airlines
Orlando — San Juan
29h 25m
including layover
Find flight
from$160
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$157
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$204
19:06 — 02:35
+1 day
17:56 — 21:39 F94526 Frontier Airlines
Austin — Orlando
48m stop
23:40 — 02:32 F94726 Frontier Airlines
Orlando — San Juan
6h 29m
including layover
Find flight
from$156
19:06 — 20:02
+1 day
17:56 — 21:39 F94526 Frontier Airlines
Austin — Orlando
18h 8m stop
17:00 — 19:58 F93506 Frontier Airlines
Orlando — San Juan
23h 56m
including layover
Find flight
from$169
19:06 — 13:17
+1 day
17:56 — 21:39 F94526 Frontier Airlines
Austin — Orlando
11h 24m stop
10:26 — 13:24 F91824 Frontier Airlines
Orlando — San Juan
17h 11m
including layover
Find flight
from$199
19:25 — 10:45
+1 day
19:25 — 22:59 NK2289 Spirit Airlines
Austin — Orlando
8h 55m stop
07:54 — 10:45 NK2525 Spirit Airlines
Orlando — San Juan
14h 20m
including layover
Find flight
from$178
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$178
*Departure and arrival times - local. Updated on September 18, 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 20h 46m.

  • The fastest flight 6h 29m
  • Average flight time 20h 46m
  • The earliest flight 05:00
  • The latest flight 20:57
  • Distance 2144 ml

The cheapest months to travel to San Juan are june (from 145 $), may (from 146 $), july (from 149 $).

The most expensive months are december (from 520 $), february (from 504 $), november (from 488 $).

What is the lowest airfare Austin to San Juan?

The cheapest plane ticket found by our users is $145. This airfare is for economy class on one-way NK2719 flight by Spirit Airlines for June 5, 2025 which leaves Austin-Bergstrom Intl in Austin at 07:14 am and arrives at San Juan Luis Munoz Marin Intl at 19:07.

Economy class
$145
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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 $ 461 . And the most expensive tickets are offered by Alaska Airlines airline - from $ 975.

Direct flights

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

Connecting Flights

There are 367 flights with layovers on the route. The fastest connecting flight is F94526 by Frontier Airlines takes 6h 29m and the cheapest is NK2719 by Spirit Airlines for $145.

  • AS - Alaska Airlines
    from $461
    Find
  • F9 - Frontier Airlines
    from $145
    Find
  • UA - United Airlines
    from $219
    Find
  • NK - Spirit Airlines
    from $145
    Find
  • G4 - Allegiant Air
    from $191
    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 $145
    Find
  • Austin-ASQ
    Find
  • Camp Maybry AHP-MMR
    Find

San Juan airports

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

Airplanes

There are flights to San Juan from Austin by 5 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.

Top Domestic Destinations from Austin

You may also consider searching for discounted plane tickets to some other popular places from Austin within United States.

Top International Destinations from Austin

Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.

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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