UAL668

Flight

Status

Completed

Departure

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

Departed

2026-08-31 18:35 UTC

Arrival

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

Distance flown

3649 km

Straight-line distance

3228 km

Approach distance

121 km

Aircraft

Registration

N37449

Type

Boeing 737 MAX 9

Seats

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

Altitude & speed

Max altitude

34,000 ft

Max ground speed

499 kt

Tracked

7h 6m · 3,576 km

Altitude (ft, max 34,000)

Ground speed (kt, max 499)

Altitude (ft, max 34,000)

Ground speed (kt, max 499)

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
2026-10-01 21:46 UTC	UAL668	SJU → IAH San Juan → Houston	N57416	Boeing 737 MAX 9	Completed (landing presumed)	1272 km
2026-10-01 19:07 UTC	UAL668	SJU → IAH San Juan → Houston	N57416	Boeing 737 MAX 9	Completed (landing confirmed by airport data)	~3521 km est. (2025 km recorded)
2026-09-30 18:59 UTC	UAL668	SJU → IAH San Juan → Houston	N17589	Boeing 737 MAX 9	Completed (landing confirmed by airport data)	3336 km
2026-09-29 19:10 UTC	UAL668	SJU → IAH San Juan → Houston	N77471	Boeing 737 MAX 9	Completed (landing presumed)	3345 km
2026-09-28 19:20 UTC	UAL668	SJU → IAH San Juan → Houston	N27519	Boeing 737 MAX 9	Completed (landing presumed)	3346 km
2026-09-27 19:14 UTC	UAL668	SJU → IAH San Juan → Houston	N47450	Boeing 737 MAX 9	Completed (landing presumed)	3344 km
2026-09-26 19:17 UTC	UAL668	SJU → IAH San Juan → Houston	N27419	Boeing 737 MAX 9	Completed (landing presumed)	3394 km
2026-09-25 19:25 UTC	UAL668	SJU → IAH San Juan → Houston	N37549	Boeing 737 MAX 9	Completed (landing presumed)	3342 km
2026-09-24 19:12 UTC	UAL668	SJU → IAH San Juan → Houston	N27474	Boeing 737 MAX 9	Completed (landing presumed)	3337 km
2026-09-23 19:13 UTC	UAL668	SJU → IAH San Juan → Houston	N57466	Boeing 737 MAX 9	Completed (landing presumed)	3416 km
2026-09-22 19:14 UTC	UAL668	SJU → IAH San Juan → Houston	N27568	Boeing 737 MAX 9	Completed (landing presumed)	3504 km
2026-09-21 18:32 UTC	UAL668	SJU → IAH San Juan → Houston	N17430	Boeing 737 MAX 9	Completed (landing presumed)	3410 km
2026-09-20 18:27 UTC	UAL668	SJU → IAH San Juan → Houston	N77598	Boeing 737 MAX 9	Completed	3504 km
2026-09-19 19:13 UTC	UAL668	SJU → IAH San Juan → Houston	N37510	Boeing 737 MAX 9	Completed	3600 km
2026-09-18 18:39 UTC	UAL668	SJU → IAH San Juan → Houston	N37535	Boeing 737 MAX 9	Completed (landing presumed)	3563 km
2026-09-17 18:33 UTC	UAL668	SJU → IAH San Juan → Houston	N17565	Boeing 737 MAX 9	Completed	3440 km
2026-09-16 20:54 UTC	UAL668	SJU → IAH San Juan → Houston	N57451	Boeing 737 MAX 9	Incomplete (signal lost)	3609 km
2026-09-15 19:17 UTC	UAL668	SJU → IAH San Juan → Houston	N77590	Boeing 737 MAX 9	Completed	3550 km
2026-09-14 19:55 UTC	UAL668	SJU → IAH San Juan → Houston	N37473	Boeing 737 MAX 9	Completed (landing presumed)	3574 km
2026-09-13 18:33 UTC	UAL668	SJU → IAH San Juan → Houston	N27474	Boeing 737 MAX 9	Completed (landing presumed)	3551 km
2026-09-12 19:06 UTC	UAL668	SJU → IAH San Juan → Houston	N17406	Boeing 737 MAX 9	Completed (landing presumed)	3440 km
2026-09-11 18:27 UTC	UAL668	SJU → IAH San Juan → Houston	N47457	Boeing 737 MAX 9	Completed	3585 km
2026-09-10 18:35 UTC	UAL668	SJU → IAH San Juan → Houston	N17425	Boeing 737 MAX 9	Completed (landing presumed)	3466 km
2026-09-09 19:15 UTC	UAL668	SJU → IAH San Juan → Houston	N37561	Boeing 737 MAX 9	Completed (landing presumed)	3521 km
2026-09-07 19:16 UTC	UAL668	SJU → IAH San Juan → Houston	N77471	Boeing 737 MAX 9	Completed	3514 km
2026-09-06 18:31 UTC	UAL668	SJU → IAH San Juan → Houston	N37440	Boeing 737 MAX 9	Completed (landing presumed)	3503 km
2026-09-05 19:04 UTC	UAL668	SJU → IAH San Juan → Houston	N37415	Boeing 737 MAX 9	Completed	3554 km
2026-09-04 18:26 UTC	UAL668	SJU → IAH San Juan → Houston	N53442	Boeing 737-900	Completed	3295 km
2026-09-03 18:31 UTC	UAL668	SJU → IAH San Juan → Houston	N27464	Boeing 737 MAX 9	Completed	3550 km
2026-09-02 18:30 UTC	UAL668	SJU → IAH San Juan → Houston	N37561	Boeing 737 MAX 9	Completed	3408 km
2026-09-01 18:26 UTC	UAL668	SJU → IAH San Juan → Houston	N47450	Boeing 737 MAX 9	Completed	3617 km
2026-08-31 18:35 UTC	UAL668	SJU → IAH San Juan → Houston	N37449	Boeing 737 MAX 9	Completed	3649 km
2026-08-30 18:24 UTC	UAL668	SJU → IAH San Juan → Houston	N37551	Boeing 737 MAX 9	Completed	3507 km
2026-08-29 19:10 UTC	UAL668	SJU → IAH San Juan → Houston	N17465	Boeing 737 MAX 9	Completed	3524 km
2026-08-28 18:47 UTC	UAL668	SJU → IAH San Juan → Houston	N17460	Boeing 737 MAX 9	Completed	3850 km
2026-08-27 18:37 UTC	UAL668	SJU → IAH San Juan → Houston	N17461	Boeing 737 MAX 9	Completed	3501 km
2026-08-26 18:24 UTC	UAL668	SJU → IAH San Juan → Houston	N17467	Boeing 737 MAX 9	Completed	3506 km
2026-08-25 18:30 UTC	UAL668	SJU → IAH San Juan → Houston	N27464	Boeing 737 MAX 9	Completed	3564 km
2026-08-24 18:35 UTC	UAL668	SJU → IAH San Juan → Houston	N17429	Boeing 737 MAX 9	Completed	3435 km
2026-08-23 18:27 UTC	UAL668	SJU → IAH San Juan → Houston	N37551	Boeing 737 MAX 9	Completed	3484 km
2026-08-22 19:01 UTC	UAL668	SJU → IAH San Juan → Houston	N77571	Boeing 737 MAX 9	Completed	3914 km
2026-08-21 18:42 UTC	UAL668	SJU → IAH San Juan → Houston	N37536	Boeing 737 MAX 8	Completed	3688 km
2026-08-20 18:33 UTC	UAL668	SJU → IAH San Juan → Houston	N17565	Boeing 737 MAX 9	Completed	4455 km
2026-08-19 19:08 UTC	UAL668	? → IAH ? → Houston	N17414	Boeing 737 MAX 9	Completed	5924 km
2026-08-18 18:31 UTC	UAL668	SJU → IAH San Juan → Houston	N17413	Boeing 737 MAX 9	Completed	8153 km
2026-08-17 18:35 UTC	UAL668	SJU → IAH San Juan → Houston	N37551	Boeing 737 MAX 9	Completed	4799 km
2026-08-16 18:35 UTC	UAL668	SJU → IAH San Juan → Houston	N17452	Boeing 737 MAX 9	Completed	4756 km
2026-08-15 19:04 UTC	UAL668	SJU → IAH San Juan → Houston	B737-M9	Boeing 737 MAX 9	Completed	~5544 km est. (4170 km recorded)
2026-08-14 18:46 UTC	UAL668	SJU → IAH San Juan → Houston	N17433	Boeing 737 MAX 9	Completed	~7098 km est. (5565 km recorded)
2026-08-13 18:25 UTC	UAL668	SJU → IAH San Juan → Houston	N17430	Boeing 737 MAX 9	Completed	5326 km