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Flights from San Antonio to San Juan

Flight Info | San Antonio to San Juan

The distance between San Antonio and San Juan is approximately 3,506.18 km. Based on Trip.com's data, travel demand peaks in July.

Cheapest one-way
$152
United Airlines United Airlines SAT-SJU 9h 50m · 1 stop Wed, Sep 2
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Cheapest round-trip
$358
American Airlines American Airlines SAT-SJU 6h 25m · 2 stops Sun, Sep 6 - Sat, Sep 12
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Recommended airlines
United Airlines United Airlines Cheapest · From $152 American Airlines American Airlines Most booked
When to travel
September
Cheapest
July
Peak season for travel
Route details
3,506.18 km
Flight distance

Find flight deals from San Antonio to San Juan for the next 3 months. Book one way flights from $152 or round trip flights from $358.

      • SAT 5:15 AM
        6h 25m
        1 stop
        SJU 12:40 PM
        San Antonio - San Juan | Sun, Sep 6 | American Airlines
        SJU 2:58 PM
        8h 5m
        1 stop
        SAT 10:03 PM
        San Juan - San Antonio | Sat, Sep 12 | American Airlines
        $358 $479
        25% off
        25% off
        $479 $358
      • SAT 5:14 AM
        7h 43m
        1 stop
        SJU 1:57 PM
        San Antonio - San Juan | Thu, Sep 10 | American Airlines
        SJU 2:58 PM
        8h 5m
        1 stop
        SAT 10:03 PM
        San Juan - San Antonio | Mon, Sep 14 | American Airlines
        $358 $479
        25% off
        25% off
        $479 $358
      • SAT 5:14 AM
        9h 26m
        1 stop
        SJU 3:40 PM
        San Antonio - San Juan | Thu, Sep 24 | American Airlines
        SJU 10:16 AM
        12h 47m
        1 stop
        SAT 10:03 PM
        San Juan - San Antonio | Mon, Sep 28 | American Airlines
        $358 $479
        25% off
        25% off
        $479 $358
      • SAT 5:15 AM
        6h 25m
        1 stop
        SJU 12:40 PM
        San Antonio - San Juan | Sat, Aug 29 | American Airlines
        SJU 5:47 PM
        7h 12m
        1 stop
        SAT 11:59 PM
        San Juan - San Antonio | Sat, Sep 5 | American Airlines
        $382
        20% off
        $479 $382
      • SAT 5:14 AM
        7h 43m
        1 stop
        SJU 1:57 PM
        San Antonio - San Juan | Wed, Sep 9 | American Airlines
        SJU 2:58 PM
        8h 5m
        1 stop
        SAT 10:03 PM
        San Juan - San Antonio | Sun, Sep 13 | American Airlines
        $383
        20% off
        $479 $383
      • SAT 5:15 AM
        8h 23m
        1 stop
        SJU 2:38 PM
        San Antonio - San Juan | Tue, Sep 1 | American Airlines
        SJU 6:25 AM
        13h 10m
        1 stop
        SAT 6:35 PM
        San Juan - San Antonio | Sat, Sep 5 |
        $384
        20% off
        $479 $384
      • SAT 5:14 AM
        9h 26m
        1 stop
        SJU 3:40 PM
        San Antonio - San Juan | Fri, Sep 25 | American Airlines
        SJU 1:00 AM
        11h 41m
        1 stop
        SAT 11:41 AM
        San Juan - San Antonio | Tue, Sep 29 | United Airlines
        $385
        20% off
        $479 $385
      • SAT 10:53 AM
        10h 36m
        1 stop
        SJU 10:29 PM
        San Antonio - San Juan | Sun, Sep 6 | Delta Air Lines
        SJU 6:31 PM
        15h 31m
        1 stop
        SAT 9:02 AM
        San Juan - San Antonio | Sun, Sep 13 | Frontier Airlines
        $389
        19% off
        $479 $389
      • SAT 5:20 AM
        7h 22m
        1 stop
        SJU 1:42 PM
        San Antonio - San Juan | Mon, Sep 7 | Delta Air Lines
        SJU 6:31 PM
        15h 31m
        1 stop
        SAT 9:02 AM
        San Juan - San Antonio | Sun, Sep 13 | Frontier Airlines
        $389
        19% off
        $479 $389
      • SAT 6:25 AM
        9h 13m
        1 stop
        SJU 4:38 PM
        San Antonio - San Juan | Tue, Sep 1 | Delta Air Lines
        SJU 6:25 AM
        8h 25m
        1 stop
        SAT 1:50 PM
        San Juan - San Antonio | Sat, Sep 5 |
        $392
        18% off
        $479 $392
      • SAT 1:00 PM
        17h 25m
        1 stop
        SJU 2:00 PM
        San Antonio - San Juan | Tue, Aug 11 | Normal Airline
        SJU 3:00 PM
        6h
        Nonstop
        SAT 4:00 PM
        San Juan - San Antonio | Thu, Aug 13 | Normal Airline
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      • SAT 1:00 PM
        9h 50m
        1 stop
        SJU 11:50 PM
        San Antonio - San Juan | Wed, Sep 2 | United Airlines
        $152 $631
        76% off
        76% off
        $631 $152
      • SAT 7:35 AM
        7h 7m
        1 stop
        SJU 3:42 PM
        San Antonio - San Juan | Fri, Aug 28 | United Airlines
        $156 $631
        75% off
        75% off
        $631 $156
      • SAT 12:00 PM
        7h 38m
        1 stop
        SJU 8:38 PM
        San Antonio - San Juan | Tue, Aug 18 | United Airlines
        $156 $631
        75% off
        75% off
        $631 $156
      • SAT 7:35 AM
        6h 37m
        1 stop
        SJU 3:12 PM
        San Antonio - San Juan | Wed, Sep 16 | United Airlines
        $169
        73% off
        $631 $169
      • SAT 5:15 AM
        9h 56m
        1 stop
        SJU 4:11 PM
        San Antonio - San Juan | Thu, Aug 20 | American Airlines
        $179
        72% off
        $631 $179
      • SAT 6:00 AM
        7h 54m
        1 stop
        SJU 2:54 PM
        San Antonio - San Juan | Thu, Aug 27 | American Airlines
        $179
        72% off
        $631 $179
      • SAT 5:14 AM
        7h 43m
        1 stop
        SJU 1:57 PM
        San Antonio - San Juan | Fri, Oct 2 | American Airlines
        $179
        72% off
        $631 $179
      • SAT 6:12 AM
        7h 41m
        1 stop
        SJU 2:53 PM
        San Antonio - San Juan | Sat, Sep 5 | American Airlines
        $179
        72% off
        $631 $179
      • SAT 1:00 PM
        9h 50m
        1 stop
        SJU 11:50 PM
        San Antonio - San Juan | Wed, Aug 12 | United Airlines
        $517
        18% off
        $631 $517
      • SAT 1:00 PM
        17h 25m
        1 stop
        SJU 2:00 PM
        San Antonio - San Juan | Tue, Aug 11 | Normal Airline
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        Find more flights

Popular airlines from San Antonio to San Juan

You can choose from 3 airlines that fly from San Antonio to San Juan, including American Airlines, Frontier Airlines, and United Airlines. United Airlines has lowest fares on this route.
American Airlines logo American Airlines
Frontier Airlines logo Frontier Airlines
United Airlines logo United Airlines
Airlines are determined based on actual purchased flight tickets from San Antonio to San Juan according to previous 12 months data from Trip.com.

Frequently Asked Questions

  • What are the cheapest flights from San Antonio to San Juan (SAT-SJU)?

    Based on Trip.com data, United Airlines offers one-way fares as low as $152 on Cheapest nonstop routes (e.g. SAT to SJU on Wed, Sep 2), while American Airlines offers Cheapest nonstop round-trips from $358 departing on Sun, Sep 6 and returning on Sat, Sep 12.
  • At the moment, several airlines serve connecting flights from San Antonio to San Juan, including: American Airlines Frontier Airlines United Airlines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from San Antonio to San Juan is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from San Antonio to San Juan, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Wed, Sep 2, with one-way flights priced at just $152.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is United Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for San Juan travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from San Antonio to San Juan is September, when demand for travel is lower.
  • After crunching the numbers on our August flight calendar, it's currently cheapest to fly from San Antonio to San Juan on August 14, 2026 with United Airlines, with prices starting at $313.
  • You can land at any one of the following hubs in San Juan, with San Antonio International Airport to Luis Munoz Marin International Airport (SAT-SJU) is by far the most common option on this route: Luis Munoz Marin International Airport (SJU) Fernando Luis Ribas Dominicci Airport (SIG).
  • The time difference between San Juan and San Antonio is 2h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.
  • Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from San Antonio to San Juan is $249. Fares vary by travel date, airline and availability.
  • Enter San Antonio and San Juan, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.

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Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.