SJU → IAHSan Juan to Houston

live

Direct flights from San Juan (SJU) to Houston (IAH): 7 nonstop departures observed each week across 1 airline. The median arrival is 31 minutes early. No cancellations were recorded across the 3 tracked flights. The nonstop covers 3,228 km, an estimated 4 hours 38 minutes in the air. Measured by Pro Flight Search from live flight boards at San Juan and Houston. Updated 14 September 2026 at 20:54 UTC.

SJU San Juan smooth · +10
IAH Houston smooth · +0
3,228 km · ~4h 38m est.
dep bank 07:00–14:207x weekly
Running clean · 1 airline · 7x weekly · nonstop
93 / 100

route health from live SJU and IAH delay boards

Median arrival delay is −31 min. 0 of 3 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−31 minacross the last 3 operated legs
Flight time~4h 38mestimated from route distance
Weekly departures7x1 direct airline on the leg

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
United Airlines

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
United AirlinesUA

Flights UA1644 07:00 daily · UA668 14:20 daily

History

operated legs · board outcomes
09-14UA1644dep +8 → arr−34
09-13UA1644arrived−31
09-13UA668arrived−16

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
SJUSan Juan +10 min smooth 🌤 scattered clouds · NE 15 kt Full SJU delay board →
IAHHouston +0 min smooth 🌤 few clouds · SSW 5 kt Full IAH delay board →

Weather lens

Current conditions put the pressure at SJU: 40% odds of a 15+ minute delay and around +15 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the San Juan to Houston route actually runs

Pro Flight Search records official board updates for nonstop SJU to IAH flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — San Juan (SJU) to Houston (IAH) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/SJU-IAH
How we measure this →

SJU to IAH questions

Is SJU–IAH running on time right now?

Smooth skies ahead. The departure side at SJU is the weaker end, route health score 93/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on SJU–IAH?

Operators schedule morning departures around 07:00 from SJU. Earlier flights typically land before destination-airport delays accumulate later in the day; check the IAH delay card to confirm conditions when you'd arrive.

How long is the flight from SJU to IAH?

Great-circle distance is 3,228 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 258–307 min gate-to-gate on this route.

How often does SJU–IAH fly?

United Airlines runs the route with about 14 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.