$93 Cheap Flights from San Juan (SJU) to Austin (AUS)

San Juan (SJU) to Austin (AUS) at a glance

Discover a range of airlines offering flights from San Juan (SJU) to Austin (AUS) on this international short-haul route. Evaluate choices from both full-service and low-cost carriers to find the best itinerary that aligns with your budget, schedule, and travel plans while you uncover the highlights and neighborhoods of Austin. Get essential information for flights departing from Luis Munoz Marin International Airport (SJU) to Austin-Bergstrom International Airport (AUS).

• Fastest flight duration: around 5h 30m non-stop
• Route distance: roughly 2,100 miles (3,380 km)
• Flights per week: around 25+ flights with multiple daily departures on average
• Typical fares (one-way): economy tickets often range from $115–$440, depending on seasonality and how far ahead you book

Flights from Luis Munoz Marin International Airport (SJU) to Austin-Bergstrom International Airport (AUS)

Based on the latest traveler bookings, here are the top airlines favored for flights from San Juan to Austin, offering both non-stop and one-stop options. Common layover points include Hartsfield-Jackson Atlanta International Airport (ATL) with about a 1-hour 15-minute layover, Miami International Airport (MIA) at approximately 2 hours, and Orlando International Airport (MCO) with a 1-hour 30-minute layover. These choices allow you to tailor your itinerary by balancing price, total travel time, and cabin class for the best travel experience.

• American Airlines: This full-service airline provides both one-stop and multi-stop options, with one-way fares generally between $125 and $420. It represents about 29% of departures on this route, offering a typical in-flight duration of 6 hours and 15 minutes, leading to a total travel time of approximately 8 hours.
• Southwest Airlines: Known as a budget-friendly option, Southwest Airlines features non-stop, one-stop, and multi-stop services, with one-way fares usually ranging from $115 to $440. It accounts for around 21% of the departures for this route, with a standard in-flight time of 6 hours and 15 minutes, totaling about 8 hours for the complete journey.
• United: This full-service airline offers one-stop journeys with one-way fares typically between $125 and $560. United operates approximately 21% of the departures on this route, with an in-air time of 6 hours and 15 minutes and a total travel time of about 8 hours, including layover periods.
• Delta: Another full-service airline, Delta provides one-stop service, with one-way fares typically ranging from $120 to $395. It makes up around 15% of the departures along this route, featuring an in-flight duration of 6 hours and 15 minutes, resulting in a total journey time of roughly 8 hours, factoring in layovers.
• Frontier Airlines: As a low-cost carrier, Frontier Airlines offers one-stop service with one-way fares generally falling between $115 and $355. It represents approximately 10% of departures for this route, with an in-flight time of 6 hours and 15 minutes, leading to a total journey time of around 8 hours, including layover times.

Travelers flying from San Juan to Austin can upgrade their experience, as both United and Delta offer first-class service on this route.

Best time to fly from San Juan (SJU) to Austin (AUS)

The most popular months for travelers flying from San Juan to Austin are January, March, and April, when peak temperatures in Austin reach up to 68°F in April. If you prefer quieter travel, consider May, the least busy time to visit with temperatures around 75°F and typically the lowest average one-way fare (around $199). Flight availability peaks in July, with approximately 41 flights per week, making it easier to find convenient departure times. February has the fewest flights, with approximately 23 flights per week.

• Cheapest time to fly: May usually offers good deals with average one-way fare around $199, roughly 14% cheaper than the yearly average.
• More budget-friendly months to fly: October, February, and November typically offer average one-way fares of around $208.
• Most flight options: July has the highest number of flights from San Juan to Austin, with approximately 41 flights per week, giving you more flexibility in scheduling your trip.

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative routes from San Juan (SJU) to Austin (AUS)

• San Juan to San Antonio (SJU-SAT): San Antonio International Airport (SAT) lies approximately 67 miles from Austin-Bergstrom International Airport (AUS). On this route, one-way economy tickets typically vary from $115 to $475, influenced by the time of year and how far in advance you book. Travel options generally include both one-stop and multi-stop flights, with common layover points at George Bush Intercontinental Airport (IAH) and Hartsfield-Jackson Atlanta International Airport (ATL). Major airlines operating this route include United and American Airlines, with first class also offered.
• Aguadilla to Austin (BQN-AUS): Rafael Hernandez Airport (BQN) is roughly 74 miles from Luis Munoz Marin International Airport (SJU). Economy fares for one-way tickets on this route typically range from $115 to $365, depending on the season and booking timing. Typically, travelers find one-stop flights, with frequent layovers at Newark Liberty International Airport (EWR) and Orlando International Airport (MCO). United and Frontier Airlines, a budget carrier, are the leading airlines on this route, and first class service is also available.
• San Juan to Killeen (SJU-GRK): Killeen-Fort Hood Regional Airport (GRK) is located about 60 miles from Austin-Bergstrom International Airport (AUS). One-way economy fares on this route generally range from $140 to $385, influenced by seasonal variations and how early tickets are purchased. The route is usually served by both one-stop and multi-stop flights, primarily connecting through Dallas-Fort Worth International Airport (DFW). American Airlines is the predominant airline for this journey.

How to find the best prices for flights from San Juan (SJU) to Austin (AUS)

Getting some of the best deals on flights from San Juan to Austin is all about timing and flexibility. Here are some key tips to help you save:

1. Best times to book and fly: cheaper fares are usually found when booking at least two months in advance, although most travelers tend to book two to eight weeks ahead. Evening departures between 6 PM and midnight often offer lower prices, while morning flights from 5 AM to noon are the most popular. Additionally, flying on Monday provides both cheaper rates and is the most favored travel day.
2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Austin-Bergstrom International Airport from Luis Munoz Marin International Airport

Austin welcomes travelers from San Juan with a range of transport options based on price, convenience, and proximity. For departures, Luis Munoz Marin International Airport is roughly a 15-minute drive (covering about 10 miles) from central San Juan. Here's how to reach Austin efficiently:

• Hotel transfer: Transfers offer a convenient way to reach your hotel in Austin, with private rides that can be arranged in advance.
• Car rental: Renting a car from Austin-Bergstrom International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Austin-Bergstrom International Airport on Expedia.
• Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
• Public transportation: From Austin-Bergstrom International Airport, Plaza Saltillo Station (a metro station) is about 7.7 miles away by car, while Austin Seaport (a seaport) is located approximately 8.8 miles from the airport, both accessible by car or taxi.

San Juan to Austin Flights

The cheapest times to fly from San Juan to Austin

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Juan to Austin are during the month of October. You can find some of the cheapest flights from San Juan to Austin with Expedia's search tool and vast selection of airlines.

The best time to book a flight from San Juan to Austin

Sunday is one of the best days to book for cheap flights from San Juan to Austin: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from San Juan to Austin

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Juan to Austin in 2026. You can also book with separate airlines for your outbound and return journeys, from $93 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Juan to Austin flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Juan to Austin airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.