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

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Compare Houston George Bush Intercntl. to San Juan Luis Munoz Marin flight deals

Find the cheapest month or even day of the year to fly to San Juan Luis Munoz Marin

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Flight deals from Houston George Bush Intercntl. to San Juan Luis Munoz Marin

Looking for a cheap last-minute deal or the best return flight from Houston George Bush Intercntl. to San Juan Luis Munoz Marin? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Houston George Bush Intercntl. to San Juan Luis Munoz Marin

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Houston George Bush Intercntl. to San Juan Luis Munoz Marin flights are currently cheapest in November.

Direct flights from Houston George Bush Intercntl. to San Juan Luis Munoz Marin

Houston George Bush Intercntl. to San Juan Luis Munoz Marin: Alternative routes

Compare routes from Houston George Bush Intercntl. to San Juan below. You may find an airport to fly into that's cheaper, faster, or easier than San Juan Luis Munoz Marin.

Houston to San Juan: Flight information

The things to know before you go.
Cheapest flight found$228
Cheapest month to flyNovember
Average flight time4 hrs, 27 mins
Most popular airlineAir Canada
Average flights per week65

Finding cheap flights from Houston George Bush Intercntl. to San Juan Luis Munoz Marin: Frequently asked questions

The best price we found for a return flight from Houston George Bush Intercntl. to San Juan Luis Munoz Marin is $228. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
4 hours and 27 minutes is the average flight time from Houston George Bush Intercntl. to San Juan Luis Munoz Marin.
Air Canada, Air New Zealand and United fly direct from Houston George Bush Intercntl. to San Juan Luis Munoz Marin.
As of May 2025, there are 65 flights per week flying from Houston George Bush Intercntl. to San Juan Luis Munoz Marin.
The cheapest month to fly from Houston George Bush Intercntl. to San Juan Luis Munoz Marin is usually May 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Houston George Bush Intercntl. Airport to San Juan Luis Munoz Marin Airport on Monday, 10 November 2025.
Yes – the average flight time is 4 hours and 27 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Juan Luis Munoz Marin but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Juan is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, United offers the cheapest flight tickets to San Juan Luis Munoz Marin.

Flying from George Bush Intercontinental Airport (IAH) to Luis Munoz Marin International Airport (SJU): what you need to know

  • Take a direct flight from George Bush Intercontinental Airport to Luis Munoz Marin International Airport and you'll be in the air for an average of 4 hours 30 minutes.

  • San Juan is one hour ahead of Houston and is in the UTC-4 timezone.

  • Choose from 24 weekly George Bush Intercontinental Airport to Luis Munoz Marin International Airport flights. The 07:10 departure with Spirit Airlines is the earliest available. United Airlines operates the last service of the day at 23:57.

  • To ensure you get on your IAH to SJU flight, leave enough time to check in and drop off your luggage. Arriving two hours ahead of international departures and an hour before domestic flights is the general rule.

  • Be prepared for longer lines during popular months like July. Arriving up to four hours in advance for international flights and two hours for a domestic departure is a good idea.

  • Getting to San Juan (and then seeing more of Puerto Rico!) is a snap with Spirit Airlines. This popular airline offers direct flights from George Bush Intercontinental Airport to Luis Munoz Marin International Airport.

  • The airline that passengers book most often on this route is Spirit Airlines.

  • Spirit Airlines stands out as the most punctual carrier for IAH to SJU flights, with 93.02% of services landing on schedule.

  • We make it easy to book a flight with a stopover. To see all your options for tickets from George Bush Intercontinental Airport to Luis Munoz Marin International Airport, uncheck 'Direct flights only.' Then, choose a flight that has a stop long enough to visit the city of your choice. Popular stopovers between IAH and SJU include:

    • Fort Lauderdale-Hollywood International Airport

    • Miami International Airport

    • Cyril E. King Airport

How to find the cheapest flights from George Bush Intercontinental Airport (IAH) to Luis Munoz Marin International Airport (SJU)

  • The lowest price we've seen for a one-way George Bush Intercontinental Airport to Luis Munoz Marin International Airport flight is $98. A round-trip fare is currently $228. Depending on the availability and when you book, these fares can change.

  • Book six months before you travel. After crunching the numbers on our calendar, this is how far you'll want to book ahead to find cheap tickets from IAH to SJU.

  • The cheapest month for flights from George Bush Intercontinental Airport to Luis Munoz Marin International Airport is May. Use the 'Whole month' tool to see the lowest airfares if you have a flexible schedule.

  • Finding cheap flights from IAH to SJU is a breeze with Price Alerts. All you need to do is create one of these automatic alerts and we'll notify you as soon as a lower fare pops up.

  • Tailor your trip using filters. Choose your ideal departure and arrival times, airlines and total journey duration. You can also sort the results by 'Fastest,' 'Best' or 'Cheapest' flights from George Bush Intercontinental Airport to Luis Munoz Marin International Airport.

Handy information about George Bush Intercontinental Airport (IAH)

  • You'll find IAH at 16930 JFK Boulevard.

  • 78.42% of flights that take off from George Bush Intercontinental Airport land at their destination on time.

  • To reach George Bush Intercontinental Airport from central Houston, it'll take about 20 minutes if you're going by car. Of course, this depends on traffic conditions. It's approximately 27 kilometres from the airport to the city centre.

  • The journey when using public transport takes roughly 50 minutes.

  • Need a handy hotel near IAH? If you're catching an early flight from George Bush Intercontinental Airport to Luis Munoz Marin International Airport, these accommodation options will have you sleeping moments from your departure lounge:

Arriving at Luis Munoz Marin International Airport (SJU)

Getting from Luis Munoz Marin International Airport (SJU) to central San Juan

  • Luis Munoz Marin International Airport to the centre of San Juan has a drive time of around 10 minutes. It's approximately 8 kilometres away.

  • If you're travelling on public transport, expect a journey of about 55 minutes.

When to fly to Luis Munoz Marin International Airport (SJU)

  • July is the busiest month for flights from George Bush Intercontinental Airport to Luis Munoz Marin International Airport. To skip the crowds, go to San Juan in May.

  • The warmest month in San Juan is September, with temperatures ranging between 23ºC (73ºF) and 33ºC (91ºF). Lock in your flights from George Bush Intercontinental Airport to Luis Munoz Marin International Airport in this month if this is the kind of weather you like.

  • Look for cheap tickets from IAH to SJU in February if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between 20ºC (68ºF) and 28ºC (82ºF) on average.

Explore more of Puerto Rico

  • San Juan has plenty going for it, but there are so many other parts of Puerto Rico waiting to be discovered. Around 10 kilometres west of San Juan, a trip to Bayamon will keep you on the go. Start with popular sights like Plazoleta Ignacio Zorrilla, La Plaza de la Bomba Puertorriqueña, Monumento a los Trovadores and Parque Palm Court.

  • Carolina is another standout destination in Puerto Rico and is around 11 kilometres east of San Juan. No journey is complete without seeing Isla Verde Beach, Parque de Doble A Roberto Clemente Walker and Drone Zone Track.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.