UAL1644

For travellers

Departure · San Juan (SJU)

Gate B8

Scheduled 07:00 · Estimated 07:00

Board status: Scheduled

Airborne since 07:10 (ADS-B)

Arrival · Houston (IAH)

Gate E8 · Baggage belt C10

Scheduled 10:45 · Landed 10:36 · early

Board status: Landed

Landed 10:36 (airport data)

Board data from houston, sju, updated 46 min ago; times local to each airport.

Flight

Status

Completed (landing confirmed by airport data)

Arrival confirmed via

Airport data (confirmed)

Departure

Luis Munoz Marin International Airport (SJU) — San Juan, Puerto Rico

Scheduled departure

2026-10-02 11:00 UTC

Departed

2026-10-02 11:10 UTC

Arrival

George Bush Intercontinental Houston Airport (IAH) — Houston, United States

Scheduled arrival

2026-10-02 15:45 UTC

Estimated arrival

2026-10-02 15:34 UTC

Also flies as

UA1644

Distance flown

3482 km

Straight-line distance

3228 km

Aircraft

Registration

N77587

Type

Boeing 737 MAX 9

Seats

179 total (117 Economy, 42 Economy Plus, 20 First) (typical for type, not this tail)

CO2 (EMEP est., total)

67.7 t (480 kg/pax Business, 366 kg/pax Economy)

Altitude & speed

Max altitude

36,025 ft

Max ground speed

480 kt

Tracked

4h 21m · 3,470 km

Altitude (ft, max 36,025)

Ground speed (kt, max 480)

Altitude (ft, max 36,025)

Ground speed (kt, max 480)

From the ADS-B positions we received; time since the first fix. A dashed stretch is a gap in reception, bridged by a straight line.

Route map

Airline

United Airlines (UAL)

Latest flights

Departed	Flight	Route	Reg	Aircraft	Status	Distance
2026-10-02 11:10 UTC	UAL1644	SJU → IAH San Juan → Houston	N77587	Boeing 737 MAX 9	Completed (landing confirmed by airport data)	3482 km
2026-10-01 11:09 UTC	UAL1644	SJU → IAH San Juan → Houston	N37440	Boeing 737 MAX 9	Completed (landing confirmed by airport data)	3364 km
2026-09-30 11:09 UTC	UAL1644	SJU → IAH San Juan → Houston	N77587	Boeing 737 MAX 9	Completed (landing presumed)	3363 km
2026-09-29 11:12 UTC	UAL1644	SJU → IAH San Juan → Houston	N47434	Boeing 737 MAX 9	Completed (landing presumed)	3485 km
2026-09-28 11:10 UTC	UAL1644	SJU → IAH San Juan → Houston	N37450	Boeing 737 MAX 9	Completed (landing presumed)	3348 km
2026-09-27 11:05 UTC	UAL1644	SJU → IAH San Juan → Houston	N17465	Boeing 737 MAX 9	Completed (landing presumed)	3457 km
2026-09-26 11:11 UTC	UAL1644	SJU → IAH San Juan → Houston	N17436	Boeing 737 MAX 9	Completed (landing presumed)	3315 km
2026-09-25 11:11 UTC	UAL1644	SJU → IAH San Juan → Houston	N77590	Boeing 737 MAX 9	Completed	3553 km
2026-09-24 11:13 UTC	UAL1644	SJU → IAH San Juan → Houston	N37514	Boeing 737 MAX 9	Completed (landing presumed)	3391 km
2026-09-23 11:07 UTC	UAL1644	SJU → IAH San Juan → Houston	N17441	Boeing 737 MAX 9	Completed (landing presumed)	3392 km
2026-09-22 11:13 UTC	UAL1644	SJU → IAH San Juan → Houston	N77581	Boeing 737 MAX 9	Completed (landing presumed)	3472 km
2026-09-21 11:06 UTC	UAL1644	SJU → IAH San Juan → Houston	B737-M9	Boeing 737 MAX 9	Completed (landing presumed)	3311 km
2026-09-20 11:16 UTC	UAL1644	SJU → IAH San Juan → Houston	N47457	Boeing 737 MAX 9	Completed	3356 km
2026-09-19 11:07 UTC	UAL1644	SJU → IAH San Juan → Houston	N77575	Boeing 737 MAX 9	Completed	3491 km
2026-09-18 11:10 UTC	UAL1644	SJU → IAH San Juan → Houston	N87442	Boeing 737 MAX 9	Completed	3433 km
2026-09-17 11:20 UTC	UAL1644	SJU → IAH San Juan → Houston	N17418	Boeing 737 MAX 9	Completed (landing presumed)	3621 km
2026-09-16 18:03 UTC	UAL1644	SJU → IAH San Juan → Houston	N17467	Boeing 737 MAX 9	Completed (landing presumed)	3586 km
2026-09-15 11:07 UTC	UAL1644	SJU → IAH San Juan → Houston	N17432	Boeing 737 MAX 9	Completed	3446 km
2026-09-14 11:09 UTC	UAL1644	SJU → IAH San Juan → Houston	N17595	Boeing 737 MAX 9	Completed	3394 km
2026-09-13 11:11 UTC	UAL1644	SJU → IAH San Juan → Houston	N47434	Boeing 737 MAX 9	Completed	3402 km
2026-09-12 11:10 UTC	UAL1644	SJU → IAH San Juan → Houston	B737-M9	Boeing 737 MAX 9	Completed	3511 km
2026-09-11 11:18 UTC	UAL1644	SJU → IAH San Juan → Houston	N77544	Boeing 737 MAX 9	Completed (landing presumed)	3510 km
2026-09-10 11:09 UTC	UAL1644	SJU → IAH San Juan → Houston	N17435	Boeing 737 MAX 9	Completed (landing presumed)	3480 km
2026-09-09 11:23 UTC	UAL1644	SJU → IAH San Juan → Houston	N27511	Boeing 737 MAX 9	Completed	3776 km
2026-09-08 11:15 UTC	UAL1644	SJU → ? San Juan → ?	N47569	Boeing 737 MAX 9	Incomplete (signal lost)	1663 km
2026-09-07 11:16 UTC	UAL1644	SJU → IAH San Juan → Houston	N37542	Boeing 737 MAX 9	Completed	3511 km
2026-09-06 11:38 UTC	UAL1644	SJU → IAH San Juan → Houston	N17454	Boeing 737 MAX 9	Completed	3402 km
2026-09-05 11:09 UTC	UAL1644	SJU → IAH San Juan → Houston	N37504	Boeing 737 MAX 9	Completed (landing presumed)	3424 km
2026-09-04 11:06 UTC	UAL1644	SJU → IAH San Juan → Houston	N37536	Boeing 737 MAX 8	Completed	3463 km
2026-09-03 11:15 UTC	UAL1644	SJU → IAH San Juan → Houston	N87442	Boeing 737 MAX 9	Completed	3628 km
2026-09-02 11:09 UTC	UAL1644	SJU → IAH San Juan → Houston	N47462	Boeing 737 MAX 9	Completed	3512 km
2026-09-01 11:21 UTC	UAL1644	SJU → IAH San Juan → Houston	N57409	Boeing 737 MAX 9	Completed	3578 km
2026-08-31 11:15 UTC	UAL1644	SJU → IAH San Juan → Houston	N67501	Boeing 737 MAX 9	Completed	3603 km
2026-08-30 11:28 UTC	UAL1644	SJU → IAH San Juan → Houston	N77582	Boeing 737 MAX 9	Completed	3476 km
2026-08-29 11:17 UTC	UAL1644	SJU → IAH San Juan → Houston	N37534	Boeing 737 MAX 9	Completed	3583 km
2026-08-28 11:15 UTC	UAL1644	SJU → IAH San Juan → Houston	N17437	Boeing 737 MAX 9	Completed	3365 km
2026-08-27 11:10 UTC	UAL1644	SJU → IAH San Juan → Houston	N17593	Boeing 737 MAX 9	Completed	3988 km
2026-08-26 11:19 UTC	UAL1644	SJU → IAH San Juan → Houston	N27586	Boeing 737 MAX 9	Completed	3374 km
2026-08-25 11:11 UTC	UAL1644	SJU → IAH San Juan → Houston	N17441	Boeing 737 MAX 9	Completed	3511 km
2026-08-24 11:05 UTC	UAL1644	SJU → IAH San Juan → Houston	N17459	Boeing 737 MAX 9	Completed	3399 km
2026-08-23 11:19 UTC	UAL1644	SJU → IAH San Juan → Houston	N67501	Boeing 737 MAX 9	Completed	3817 km
2026-08-22 11:17 UTC	UAL1644	SJU → IAH San Juan → Houston	N37507	Boeing 737 MAX 9	Completed	3908 km
2026-08-21 11:19 UTC	UAL1644	SJU → IAH San Juan → Houston	N17420	Boeing 737 MAX 9	Completed	4149 km
2026-08-20 11:05 UTC	UAL1644	SJU → IAH San Juan → Houston	N17410	Boeing 737 MAX 9	Completed	4752 km
2026-08-19 11:09 UTC	UAL1644	SJU → IAH San Juan → Houston	N57416	Boeing 737 MAX 9	Completed	~5992 km est. (3848 km recorded)
2026-08-18 11:45 UTC	UAL1644	SJU → IAH San Juan → Houston	N17423	Boeing 737 MAX 9	Completed	9113 km
2026-08-17 11:13 UTC	UAL1644	SJU → IAH San Juan → Houston	N37561	Boeing 737 MAX 9	Completed	7237 km
2026-08-16 11:16 UTC	UAL1644	SJU → IAH San Juan → Houston	N37545	Boeing 737 MAX 9	Completed	4567 km
2026-08-15 11:18 UTC	UAL1644	SJU → IAH San Juan → Houston	N17455	Boeing 737 MAX 9	Completed	~8419 km est. (5048 km recorded)
2026-08-14 11:15 UTC	UAL1644	SJU → IAH San Juan → Houston	N27419	Boeing 737 MAX 9	Completed	4494 km