UAL1665

Flight

Status

Completed

Arrival confirmed via

ADS-B (ground reading)

Departure

Ontario International Airport (ONT) — Ontario, United States

Departed

2026-09-21 08:04 UTC

Arrival

San Francisco International Airport (SFO) — San Francisco, United States

Distance flown

628 km

Straight-line distance

585 km

Approach distance

67 km

Aircraft

Registration

N37281

Type

Boeing 737-800

Seats

166 total (102 Economy, 48 Economy Plus, 16 First)

Altitude & speed

Max altitude

24,025 ft

Max ground speed

515 kt

Tracked

59m · 627 km

Altitude (ft, max 24,025)

Ground speed (kt, max 515)

Altitude (ft, max 24,025)

Ground speed (kt, max 515)

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
2026-10-04 06:30 UTC	UAL1665	SFO → BOS San Francisco → Boston	N77471	Boeing 737 MAX 9	In progress	~4341 km est.
2026-10-03 06:33 UTC	UAL1665	SFO → BOS San Francisco → Boston	N17443	Boeing 737 MAX 9	Completed (landing confirmed by airport data)	4483 km
2026-10-02 06:33 UTC	UAL1665	SFO → BOS San Francisco → Boston	N17438	Boeing 737 MAX 9	Completed	4457 km
2026-10-01 06:31 UTC	UAL1665	SFO → BOS San Francisco → Boston	N77592	Boeing 737 MAX 9	Completed	4460 km
2026-09-30 06:36 UTC	UAL1665	SFO → BOS San Francisco → Boston	N17441	Boeing 737 MAX 9	Completed	4483 km
2026-09-29 06:39 UTC	UAL1665	SFO → BOS San Francisco → Boston	N37440	Boeing 737 MAX 9	Completed	4473 km
2026-09-28 06:53 UTC	UAL1665	SFO → BOS San Francisco → Boston	N17428	Boeing 737 MAX 9	Completed	4511 km
2026-09-27 06:31 UTC	UAL1665	SFO → BOS San Francisco → Boston	N37507	Boeing 737 MAX 9	Completed	4466 km
2026-09-26 06:49 UTC	UAL1665	SFO → BOS San Francisco → Boston	N47570	Boeing 737 MAX 9	Completed	4481 km
2026-09-25 06:22 UTC	UAL1665	SFO → BOS San Francisco → Boston	N68801	Boeing 737-900	Completed	4479 km
2026-09-24 06:33 UTC	UAL1665	SFO → BOS San Francisco → Boston	N17420	Boeing 737 MAX 9	Completed	4514 km
2026-09-23 06:03 UTC	UAL1665	SFO → BOS San Francisco → Boston	N27515	Boeing 737 MAX 9	Completed	4503 km
2026-09-22 06:12 UTC	UAL1665	SFO → BOS San Francisco → Boston	N27463	Boeing 737 MAX 9	Completed	4541 km
2026-09-21 08:04 UTC	UAL1665	ONT → SFO Ontario → San Francisco	N37281	Boeing 737-800	Completed	628 km
2026-09-21 00:21 UTC	UAL1665	SFO → ONT San Francisco → Ontario	N37281	Boeing 737-800	Completed	704 km
2026-09-20 06:28 UTC	UAL1665	SFO → BOS San Francisco → Boston	N17436	Boeing 737 MAX 9	Completed	4628 km
2026-09-19 06:26 UTC	UAL1665	SFO → BOS San Francisco → Boston	N17402	Boeing 737 MAX 9	Completed	4704 km
2026-09-19 02:38 UTC	UAL1665	ONT → SFO Ontario → San Francisco	N12225	Boeing 737-800	Completed	718 km
2026-09-18 06:33 UTC	UAL1665	SFO → BOS San Francisco → Boston	N77587	Boeing 737 MAX 9	Completed	4744 km
2026-09-18 03:48 UTC	UAL1665	ONT → SFO Ontario → San Francisco	N37278	Boeing 737 MAX 8	Completed	675 km
2026-09-17 06:43 UTC	UAL1665	SFO → BOS San Francisco → Boston	N17454	Boeing 737 MAX 9	Completed	4685 km
2026-09-16 06:10 UTC	UAL1665	SFO → BOS San Francisco → Boston	N37556	Boeing 737 MAX 9	Completed	4626 km
2026-09-15 06:10 UTC	UAL1665	SFO → BOS San Francisco → Boston	N17594	Boeing 737-900	Completed	4744 km
2026-09-14 06:35 UTC	UAL1665	SFO → BOS San Francisco → Boston	N17437	Boeing 737 MAX 9	Completed	4758 km
2026-09-14 03:07 UTC	UAL1665	ONT → SFO Ontario → San Francisco	N35260	Boeing 737-800	Completed	653 km
2026-09-13 06:42 UTC	UAL1665	SFO → BOS San Francisco → Boston	N87442	Boeing 737 MAX 9	Completed	4653 km
2026-09-12 06:17 UTC	UAL1665	SFO → BOS San Francisco → Boston	N37447	Boeing 737 MAX 9	Completed	4807 km
2026-09-11 06:22 UTC	UAL1665	SFO → BOS San Francisco → Boston	N37545	Boeing 737 MAX 9	Completed	4746 km
2026-09-10 06:36 UTC	UAL1665	SFO → BOS San Francisco → Boston	N47412	Boeing 737 MAX 9	Completed	4663 km
2026-09-09 07:24 UTC	UAL1665	? → BOS ? → Boston	N47412	Boeing 737 MAX 9	Completed	3620 km
2026-09-08 06:24 UTC	UAL1665	SFO → BOS San Francisco → Boston	N17410	Boeing 737 MAX 9	Completed	4730 km
2026-09-08 02:17 UTC	UAL1665	ONT → SFO Ontario → San Francisco	N36280	Boeing 737-800	Completed	640 km
2026-09-07 06:13 UTC	UAL1665	SFO → BOS San Francisco → Boston	N17428	Boeing 737 MAX 9	Completed	4638 km
2026-09-06 06:31 UTC	UAL1665	SFO → BOS San Francisco → Boston	N57416	Boeing 737 MAX 9	Completed	4669 km
2026-09-05 06:35 UTC	UAL1665	SFO → BOS San Francisco → Boston	N47505	Boeing 737 MAX 9	Completed	4632 km
2026-09-05 02:35 UTC	UAL1665	ONT → SFO Ontario → San Francisco	N14214	Boeing 737-800	Completed	628 km
2026-09-04 06:51 UTC	UAL1665	SFO → BOS San Francisco → Boston	N17597	Boeing 737 MAX 9	Completed	4714 km
2026-09-04 03:27 UTC	UAL1665	ONT → SFO Ontario → San Francisco	N62894	Boeing 737-900	Completed	667 km
2026-09-03 06:09 UTC	UAL1665	SFO → BOS San Francisco → Boston	N17468	Boeing 737 MAX 9	Completed	4597 km
2026-09-02 05:44 UTC	UAL1665	SFO → BOS San Francisco → Boston	N17438	Boeing 737 MAX 9	Completed	4528 km
2026-09-01 04:42 UTC	UAL1665	ONT → SFO Ontario → San Francisco	N13248	Boeing 737-800	Completed	764 km
2026-08-31 06:19 UTC	UAL1665	SFO → BOS San Francisco → Boston	N27474	Boeing 737 MAX 9	Completed	4795 km
2026-08-31 02:26 UTC	UAL1665	ONT → SFO Ontario → San Francisco	N75428	Boeing 737-900	Completed	683 km
2026-08-30 06:23 UTC	UAL1665	SFO → BOS San Francisco → Boston	N17429	Boeing 737 MAX 9	Completed	4500 km
2026-08-29 06:11 UTC	UAL1665	SFO → BOS San Francisco → Boston	N17468	Boeing 737 MAX 9	Completed	4730 km
2026-08-29 02:52 UTC	UAL1665	ONT → SFO Ontario → San Francisco	N33286	Boeing 737-800	Completed	641 km
2026-08-28 06:13 UTC	UAL1665	SFO → BOS San Francisco → Boston	N37555	Boeing 737 MAX 9	Completed	4616 km
2026-08-28 03:27 UTC	UAL1665	ONT → SFO Ontario → San Francisco	N33203	Boeing 737-800	Completed	651 km
2026-08-27 06:16 UTC	UAL1665	SFO → BOS San Francisco → Boston	N17529	Boeing 737 MAX 9	Completed	4633 km
2026-08-26 06:11 UTC	UAL1665	SFO → BOS San Francisco → Boston	N77572	Boeing 737 MAX 9	Completed	4569 km