Houston to San José, Costa Rica Flights (IAH to SJO)

Houston to Costa Rica is an easy nonstop. As of November 2026, United flies between Houston George Bush Intercontinental (IAH) and Juan Santamaría International Airport (SJO), the airport for San José, several times a day. The flight takes about 3 hours 15 minutes to 3 hours 45 minutes, a little longer coming back. Houston is one of United's main gateways to Central America, which makes this one of the simplest ways to reach Costa Rica from Texas or with one connection from elsewhere in the US. Check the current schedule with United for your dates.

Who flies Houston to San José

United operates the nonstop from its Houston hub, mostly with Boeing 737 jets. Star Alliance partners sell seats on these flights under their own codes. With several daily departures, you can usually choose between a morning flight that lands around lunchtime and a later one that arrives in the afternoon.

Before you book, decide which Costa Rican airport suits your trip. San José (SJO) is best for the Central Valley, Arenal, the Caribbean coast and the central and southern Pacific. Guanacaste's beaches in the north-west are closer to Liberia (LIR), Costa Rica's other international airport. Search both if you are heading to the Pacific coast.

Flight time and time zone

Costa Rica stays on Central Standard Time all year. It is on the same time as Houston in the US winter and one hour behind Houston in the US summer. The flight is short enough that there is no jet lag, but the drive at the other end can be long: many destinations are three or more hours by road from San José, so pick a flight that gets you there with daylight to spare.

Departing Houston

IAH has five terminals linked by the airside Skyway train and the landside subway. United uses Terminals B, C and E, with Terminal B mainly for United Express. In March 2026 the airport opened its expanded Terminal E with a new international check-in hall and a 17-lane security checkpoint, and airlines have been moving into it in stages. Your boarding pass shows the terminal; if you are dropped off at the wrong one, the train between terminals is quick.

On the way home you clear US immigration and customs at IAH. If you are connecting to another US city, allow at least two hours. Our layover guide explains how much time you really need.

Arriving at Juan Santamaría

SJO is in Alajuela, roughly 20 kilometres west of downtown San José. The drive into the city usually takes 30 to 45 minutes and longer at rush hour. Options from the airport:

• Official airport taxis: orange, with a taxi stand right outside arrivals.
• Ride-hail apps: Uber's own airport page says UberX works at SJO.
• Shared shuttles and private transfers: the usual choice for Arenal, Monteverde, Manuel Antonio and other destinations hours away. Book ahead.
• Rental cars: most companies collect you from the terminal and drive you to an off-site office.

Many visitors skip San José entirely and drive straight to La Fortuna or the coast. If you land in the afternoon, consider a night in Alajuela, close to the airport, rather than mountain roads after dark.

Entry rules for US citizens

• Passport: Costa Rica requires a passport valid for your stay and in good condition, but airlines and guides often recommend six months' validity left, so renew early if yours is close to expiry.
• Return or onward ticket: you must show a ticket home or to another country. Airlines may check this at the Houston gate.
• No visa is needed for a tourist visit.

Check the State Department's Costa Rica page and current advisory before you travel. Our guide to passport validity rules explains why airlines sometimes ask for more than the country requires.

Best months to fly

Costa Rica's dry season runs from about December to April, and it is the busiest time, especially around Christmas, New Year and Easter. The green season, from May to November, brings afternoon rain, fewer visitors and lush forests; mornings are often clear. September and October are usually the wettest months on the Pacific side, while the Caribbean coast has its own pattern and can be drier then. Plan around the region, not just the month.

Baggage and fare types

United sells several economy fare types. The cheapest, basic economy, has no advance seat choice and very limited changes, and what bags it includes depends on the route. Rain gear, hiking boots and beach kit add up, so check the allowance before you choose. Our guide to airline baggage rules explains what to look for.

Coming home from Costa Rica

Morning traffic around San José and Alajuela can be heavy, so leave extra time if you are driving back from the city or returning a rental car. Aim to be at SJO about three hours before departure; rental car returns are off-site, and the shuttle to the terminal adds time. You clear US immigration and customs at IAH, then recheck bags if you are connecting. Global Entry or Mobile Passport Control can shorten the line; our guide to Global Entry vs TSA PreCheck explains which helps on arrival.

If you bought coffee or other food to bring home, declare it on arrival. Roasted coffee is allowed when declared, but fresh fruit, unprocessed coffee berries, plants and some other farm products are not, and undeclared items can lead to fines.

Tips for the trip

Carry a printed or saved copy of your return ticket for the check-in desk. Pack layers: the Central Valley and cloud forests are cool, while the coasts are hot. And if you plan to drive, download offline maps, because some rural roads have weak signal.