United Airlines
flight
UA 1644:
Luis Munoz Marin, San Juan - Houston George Bush
Luis Munoz Marin, San Juan - Houston George Bush
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FLIGHT SCHEDULE
Direct Flights:
United Airlines UA1644
Effective 2026-03-08 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:06, non-stop
Boeing 737 MAX 9 (7M9)
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA1644
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:06, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA1644
Effective 2026-03-29 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:53, non-stop
Boeing 737-900 (739)
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1644
Effective 2026-05-21 through 2026-06-27
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
-
Duration: 4:51, non-stop
Boeing 737-900 (739)
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1644
Effective 2026-05-24 through 2026-06-21
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
Duration: 4:49, non-stop
Boeing 737-900 (739)
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1644
Effective 2026-06-28 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:51, non-stop
Boeing 737-900 (739)
Boeing 737-900 (739)
Direct Flights:
United Airlines UA1644
Valid until 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:06, non-stop
Boeing 737 MAX 9 (7M9)
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA1644
Effective 2026-02-05 through 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:06, non-stop
Boeing 737 MAX 9 (7M9)
Boeing 737 MAX 9 (7M9)
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Parallax here SJU-IAH
- UA 1644 is an international flight departing from Luis Munoz Marin, San Juan airport, Puerto Rico (SJU) and arriving at Houston George Bush airport, United States (IAH).
- The flight distance is 2004 miles, or 3225 km.
- The timezone of the departure airport is UTC-4 , and the timezone of the arrival airport is UTC-6 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
- For direct flights, the flight time varies between 4:49 and 5:06.