Routes · From IAH

Houston (IAH) to San Juan (SJU) flights

Nonstop from George Bush Intercontinental to Luis Muñoz Marín International: distance, flying time, which airlines fly it and how often.

Distance

3,228km

2,006 mi, great circle

Flying time

4h 31m

typical, gate to gate

Flights a day

2.4

average, November 2026

Airlines

passenger airlines

Airlines flying IAH to SJU

United Airlines

Route map

The shortest path over the Earth's surface. Actual tracks vary with winds and airspace. Map © OpenStreetMap contributors.

Cheapest recent fare

Fares found in recent searches load here. You can also compare IAH to SJU fares by month.

Both directions

Related guides

Cruise & air · 6 min read

Closest Airport to Galveston Cruise Terminal: IAH vs HOU

The closest airport to the Galveston cruise terminal is Hobby (HOU), about 42 miles away. See how it compares with IAH on cost, time and flight options.

October 15, 2026

Frequently asked questions

How long is the flight from Houston to San Juan?

About 4h 31m gate to gate for the 3,228 km (2,006 mile) trip, estimated from distance. Schedules vary by airline and season, and winds can add or save time.

Which airlines fly nonstop from IAH to SJU?

United Airlines, with about 2.4 flights a day between them in our data (AeroDataBox, November 2026).