$56 Cheap Flights from Houston (IAH) to San Juan (SJU)

View $56 flight on Tue, May 6, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from Houston to San Juan (IAH-SJU)

Prices were available within the past 7 days and start at $56 for one-way flights and $112 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Tue, Apr 29 - Thu, May 1
IAH
Houston
SJU
San Juan
$112 Roundtrip, just found
$112
Roundtrip
just found
Select Spirit Airlines flight, departing Tue, Apr 29 from Houston to San Juan, returning Thu, May 1, priced at $112 just found
Spirit Airlines
Tue, Apr 29 - Sat, May 3
IAH
Houston
SJU
San Juan
$129 Roundtrip, found 1 hour ago
$129
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Tue, Apr 29 from Houston to San Juan, returning Sat, May 3, priced at $129 found 1 hour ago
United
Wed, Oct 1 - Thu, Oct 2
IAH
Houston
SJU
San Juan
$131 Roundtrip, found 1 day ago
$131
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 1 from Houston to San Juan, returning Thu, Oct 2, priced at $131 found 1 day ago
Spirit Airlines
Sun, May 11 - Thu, May 15
IAH
Houston
SJU
San Juan
$137 Roundtrip, just found
$137
Roundtrip
just found
Select Spirit Airlines flight, departing Sun, May 11 from Houston to San Juan, returning Thu, May 15, priced at $137 just found
American Airlines
Tue, May 6 - Wed, May 7
IAH
Houston
SJU
San Juan
$140 Roundtrip, found 1 hour ago
$140
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Tue, May 6 from Houston to San Juan, returning Wed, May 7, priced at $140 found 1 hour ago
Spirit Airlines
Thu, May 1 - Thu, May 8
IAH
Houston
SJU
San Juan
$141 Roundtrip, found 4 hours ago
$141
Roundtrip
found 4 hours ago
Select Spirit Airlines flight, departing Thu, May 1 from Houston to San Juan, returning Thu, May 8, priced at $141 found 4 hours ago
Spirit Airlines
Sun, May 4 - Fri, May 9
IAH
Houston
SJU
San Juan
$142 Roundtrip, found 8 hours ago
$142
Roundtrip
found 8 hours ago
Select Spirit Airlines flight, departing Sun, May 4 from Houston to San Juan, returning Fri, May 9, priced at $142 found 8 hours ago
United
Wed, May 7 - Sat, May 10
IAH
Houston
SJU
San Juan
$142 Roundtrip, just found
$142
Roundtrip
just found
Select United flight, departing Wed, May 7 from Houston to San Juan, returning Sat, May 10, priced at $142 just found
Delta
Mon, May 5 - Tue, May 6
IAH
Houston
SJU
San Juan
$210 Roundtrip, found 1 hour ago
$210
Roundtrip
found 1 hour ago
Select Delta flight, departing Mon, May 5 from Houston to San Juan, returning Tue, May 6, priced at $210 found 1 hour ago
Frontier Airlines
Sat, May 17 - Sun, May 18
IAH
Houston
SJU
San Juan
$303 Roundtrip, just found
$303
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, May 17 from Houston to San Juan, returning Sun, May 18, priced at $303 just found
Flights from Houston (IAH) to San Juan (SJU)
Origin airport
George Bush Intercontinental
Destination airport
Luis Munoz Marin Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, JetBlue Airways, Spirit Airlines, United
Roundtrip price
$112
Distance
2005 mi

Houston to San Juan Flights

The cheapest times to fly from Houston to San Juan

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 Houston to San Juan are during the month of April. You can find some of the cheapest flights from Houston to San Juan with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Houston to San Juan: 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 Houston to San Juan

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 Houston to San Juan in 2025. You can also book with separate airlines for your outbound and return journeys, from $56 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 Houston to San Juan 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 Houston to San Juan 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.

 

Frequently asked questions

How much does a flight from George Bush Intercontinental Airport (IAH) to Luis Munoz Marin Intl. Airport (SJU) cost?
You can pick up cheap return flights starting from $112 from George Bush Intercontinental Airport (IAH) to Luis Munoz Marin Intl. Airport (SJU). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Spirit Airlines flight leaving IAH on April 29 2025 and touching down at SJU. The price was last updated on April 25 2025 and has not changed since.
What is the cheapest month to fly from IAH to SJU?
The cheapest flights from IAH to SJU are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from George Bush Intercontinental Airport (IAH) to Luis Munoz Marin Intl. Airport (SJU)?
When heading out of George Bush Intercontinental Airport (IAH), you can hop on a nonstop flight to Luis Munoz Marin Intl. Airport (SJU) with United Airlines.
What is the cheapest airline that flies from IAH to SJU?
With tickets starting at $56 for a one-way flight from IAH to SJU, Spirit Airlines is currently the cheapest airline flying this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from IAH on May 11 2025. Prices were last updated on April 25 2025 and have not changed since.
How many flights per day from George Bush Intercontinental Airport (IAH) to Luis Munoz Marin Intl. Airport (SJU)?
With, on average, 3 direct flights departing from George Bush Intercontinental Airport (IAH) to Luis Munoz Marin Intl. Airport (SJU) each day, you’ll be up in the air in no time.
What are the most popular departure times for flights from George Bush Intercontinental Airport (IAH) to Luis Munoz Marin Intl. Airport (SJU)?
The 10 AM departures from IAH to SJU are the most sought after. Greater demand means you’ll likely pay more for these departures. If you want to save money, choose a less crowded time to fly.
What day of the week has the most flights from IAH to SJU?
Saturday offers the most flights from George Bush Intercontinental Airport (IAH) to Luis Munoz Marin Intl. Airport (SJU). Consider jetting off on this day and you’ll have the best chance of finding a departure that fits your plans.
What is the earliest flight from George Bush Intercontinental Airport (IAH) to Luis Munoz Marin Intl. Airport (SJU)?
Hop on the earliest flight at around 9:32AM UTC-6, leaving from George Bush Intercontinental Airport (IAH). You’ll be in the air for about 4h 26m, landing at Luis Munoz Marin Intl. Airport (SJU) at approximately 3:58PM UTC-4.
How long does it take to fly from George Bush Intercontinental Airport (IAH) to Luis Munoz Marin Intl. Airport (SJU)?
Flights from IAH to SJU have an average travel time of 4 hours and 22 minutes. The distance between the two is 2,000 mi.
What airline has the least delays from IAH to SJU?
With 87% of flights typically landing on schedule, United Airlines has the best on-time performance for direct flights from George Bush Intercontinental Airport (IAH) to Luis Munoz Marin Intl. Airport (SJU). To keep track of your flight status and get notified if anything changes, simply head to the Expedia App.
What is the best time to fly from George Bush Intercontinental Airport (IAH) to Luis Munoz Marin Intl. Airport (SJU)?
To avoid potential delays on the George Bush Intercontinental Airport (IAH) to Luis Munoz Marin Intl. Airport (SJU) route, aim to travel before 3 PM. Departures after this time have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for San Juan from George Bush Intercontinental Airport (IAH)?
Explore your flight options from George Bush Intercontinental Airport (IAH) to Luis Munoz Marin Intl. Airport (SJU). This is the only San Juan airport you can land at if you’re taking a direct flight.
Is it cheaper to buy a plane ticket from George Bush Intercontinental Airport (IAH) to Luis Munoz Marin Intl. Airport (SJU) last-minute?
Last-minute bookings from IAH to SJU are usually more expensive. For the lowest prices, start looking for flights as soon as possible. That being said, if you’re flexible with your travel plans, it’s possible to land a cheap fare right before your trip.
Can I cancel or change the date of my flight from George Bush Intercontinental Airport (IAH) to Luis Munoz Marin Intl. Airport (SJU)?
If you booked your IAH to SJU flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

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*Available to One Key members.