United Airlines UA1644 Flight Status : Live Tracking & Updates

International flight United Airlines UA1644 takes off from San Juan (SJU) Puerto Rico to Houston (IAH) United States. It's operated by United Airlines. The plane leaves Luis Munoz Marin International Airport at 07:00 25 May 2026 America/Puerto_Rico. The flight is expected to land at George Bush Intercontinental Airport at 10:53 25 May 2026 America/Chicago. The flight will last about 4 hours 5 minutes.

Current status of UA1644 is In Air Estimated Arrival in 3 hours, 29 minutes

UA1644 - UAL1644 United Airlines (UA)
SJU San Juan Puerto Rico
Flight SJU to IAH
IAH Houston United States
In Air Estimated Arrival in 3 hours, 29 minutes
Departure Luis Munoz Marin International Airport
IATA: SJUICAO: TJSJ
Scheduled 07:00 25 May 2026
Actual 07:14 25 May 2026
B B2
Arrival George Bush Intercontinental Airport
IATA: IAHICAO: KIAH
Scheduled 10:53 25 May 2026
Estimated 10:29 25 May 2026
E E8
UA1644 Detail
  • Type: International Flight
  • Flight Duration: 4 hours 5 minutes
  • Flight Distance: 3230 kms / 2007 miles
Airline
  • United Airlines
  • IATA: UA
  • ICAO: UAL
  • Operating Days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday
Passenger Services
  • Service type: Normal passenger
  • Seats: 169
  • Freight capacity: 5.5 tons
  • Passenger classes: First Class, Economy, Business Class, Shuttle
More Detail
  • Aircraft: Boeing 737MAX 9 Passenger
  • Callsign: F-KGLS2
  • Departure Timezone: America/Puerto_Rico
  • Arrival Timezone: America/Chicago
  • Current Time in San Juan: Monday 2026-05-25 08:00 AM
  • Current Time in Houston: Monday 2026-05-25 07:00 AM

United Airlines UA1644 Flight Statistics

United Airlines
United Airlines
FLIGHT NO UA1644
AIRPLANE Boeing 737MAX 9 Passenger
ON TIME 14
DELAYED 0
CANCELLED 0
ON TIME 26
DELAYED 4
CANCELLED 0
ON TIME 55
DELAYED 5
CANCELLED 0
ON TIME 79
DELAYED 5
CANCELLED 0
Last 14 days flight data
14 30 60 90
On Time Rate

United Airlines UA1644 Flight Schedule and Histories

Time Departure Arrival Actual departure Actual arrival
Sun 24 May
Scheduled On time
San Juan (SJU) 2026-05-24T07:00
Houston (IAH) 2026-05-24T10:53
Sat 23 May
Arrived On time
San Juan (SJU) 2026-05-23T07:00
Houston (IAH) 2026-05-23T10:53
2026-05-23T06:50
2026-05-23T10:51
Fri 22 May
Arrived On time
San Juan (SJU) 2026-05-22T07:00
Houston (IAH) 2026-05-22T10:53
2026-05-22T07:00
2026-05-22T10:58
Thu 21 May
Arrived On time
San Juan (SJU) 2026-05-21T07:00
Houston (IAH) 2026-05-21T10:53
2026-05-21T06:56
2026-05-21T10:32
Wed 20 May
Arrived On time
San Juan (SJU) 2026-05-20T07:00
Houston (IAH) 2026-05-20T10:53
2026-05-20T07:01
2026-05-20T11:01
Tue 19 May
Arrived On time
San Juan (SJU) 2026-05-19T07:00
Houston (IAH) 2026-05-19T10:53
2026-05-19T06:56
2026-05-19T10:41
Mon 18 May
Arrived On time
San Juan (SJU) 2026-05-18T07:00
Houston (IAH) 2026-05-18T10:53
2026-05-18T06:54
2026-05-18T10:42
Sun 17 May
Arrived On time
San Juan (SJU) 2026-05-17T07:00
Houston (IAH) 2026-05-17T10:53
2026-05-17T06:56
2026-05-17T10:45
Sat 16 May
Arrived On time
San Juan (SJU) 2026-05-16T07:00
Houston (IAH) 2026-05-16T10:53
2026-05-16T06:58
2026-05-16T10:46
Fri 15 May
Arrived On time
San Juan (SJU) 2026-05-15T07:00
Houston (IAH) 2026-05-15T10:53
2026-05-15T06:54
2026-05-15T10:44

Flight routes similar to United Airlines UA1644

Airline Flight no Departure Arrival
United Airlines UA668
United Airlines 		25/05/2026
14:55 		4 hours 56 minutes
18:51
Air Canada AC3095
Air Canada 		25/05/2026
07:00 		4 hours 43 minutes
10:53
Air New Zealand NZ9844
Air New Zealand 		25/05/2026
14:55 		4 hours 56 minutes
18:51
Air Canada AC4831
Air Canada 		25/05/2026
02:05 		4 hours 56 minutes
06:01
Air New Zealand NZ9838
Air New Zealand 		25/05/2026
02:05 		4 hours 56 minutes
06:01
United Airlines UA2495
United Airlines 		25/05/2026
02:05 		4 hours 5 minutes
06:01
Lufthansa LH7697
Lufthansa 		25/05/2026
07:00 		4 hours 45 minutes
10:53
Air Canada AC3299
Air Canada 		25/05/2026
07:00 		4 hours 53 minutes
10:53

United Airlines Flight UA1644 FAQs

What is the scheduled flight duration for United Airlines UA1644 flight?

On average, nonstop flight takes 4 hour(s) 5 minutes, with the flight distance of 3230 km (2007 miles).

What is the current status of United Airlines UA1644 flight?

The current status of flight United Airlines UA1644 is In Air.

What type of aircraft is used for the United Airlines UA1644 flight?

All United Airlines UA1644 flights are operated using Boeing 737MAX 9 Passenger aircraft.

When does the flight United Airlines UA1644 arrive?

Flight United Airlines UA1644 arrives at 10:53.

Which terminal the flight United Airlines UA1644 is arriving at?

Flight United Airlines UA1644 arrives in George Bush Intercontinental Airport at Terminal E.

How many United Airlines UA1644 flights are operated a week?

7 flights per week. The Flight United Airlines UA1644 is operated on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday .