UAL304

Flight

Status

Completed

Departure

General Edward Lawrence Logan International Airport (BOS) — Boston, United States

Est. departure time

2026-09-03 11:26 UTC (approx.)

Arrival

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

Distance flown

4779 km

Straight-line distance

4341 km

Approach distance

67 km

Aircraft

Registration

N17421

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

38,025 ft

Max ground speed

457 kt

Tracked

6h 34m · 4,550 km

Altitude (ft, max 38,025)

Ground speed (kt, max 457)

Altitude (ft, max 38,025)

Ground speed (kt, max 457)

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 02:33 UTC	UAL304	ORD → IAD Chicago → Washington, DC	N75429	Boeing 737-900	Completed	977 km
2026-10-02 02:21 UTC	UAL304	ORD → IAD Chicago → Washington, DC	N75429	Boeing 737-900	Completed (landing confirmed by airport data)	~995 km est. (4 km recorded)
2026-10-01 01:08 UTC	UAL304	ORD → IAD Chicago → Washington, DC	N64844	Boeing 737-900	Completed	1015 km
2026-09-30 01:00 UTC	UAL304	ORD → IAD Chicago → Washington, DC	N78438	Boeing 737-900	Completed	1023 km
2026-09-29 00:48 UTC	UAL304	ORD → IAD Chicago → Washington, DC	N66897	Boeing 737-900	Completed	1019 km
2026-09-28 02:32 UTC	UAL304	ORD → IAD Chicago → Washington, DC	N61881	Boeing 737-900	Completed	1001 km
2026-09-27 00:43 UTC	UAL304	ORD → IAD Chicago → Washington, DC	N69804	Boeing 737-900	Completed	1014 km
2026-09-26 01:17 UTC	UAL304	ORD → IAD Chicago → Washington, DC	N66897	Boeing 737-900	Completed	1003 km
2026-09-25 00:52 UTC	UAL304	ORD → IAD Chicago → Washington, DC	N64809	Boeing 737-900	Completed	1010 km
2026-09-23 17:05 UTC	UAL304	AUS → IAH Austin → Houston	N852UA	Airbus A319	Completed	265 km
2026-09-22 18:44 UTC	UAL304	AUS → IAH Austin → Houston	N807UA	Airbus A319	Completed (landing presumed)	262 km
2026-09-21 16:41 UTC	UAL304	AUS → IAH Austin → Houston	N807UA	Airbus A319	Completed (landing presumed)	295 km
2026-09-20 16:38 UTC	UAL304	AUS → IAH Austin → Houston	N831UA	Airbus A319	Completed	358 km
2026-09-19 17:03 UTC	UAL304	AUS → IAH Austin → Houston	N838UA	Airbus A319	Completed (landing presumed)	281 km
2026-09-18 17:29 UTC	UAL304	AUS → IAH Austin → Houston	N830UA	Airbus A319	Completed (landing presumed)	294 km
2026-09-17 17:04 UTC	UAL304	AUS → IAH Austin → Houston	N816UA	Airbus A319	Completed (landing presumed)	301 km
2026-09-16 17:07 UTC	UAL304	AUS → IAH Austin → Houston	N837UA	Airbus A319	Completed	310 km
2026-09-15 17:03 UTC	UAL304	AUS → IAH Austin → Houston	N890UA	Airbus A319	Completed	365 km
2026-09-14 16:45 UTC	UAL304	AUS → IAH Austin → Houston	N853UA	Airbus A319	Completed	322 km
2026-09-13 14:37 UTC	UAL304	IAH → SBN Houston → South Bend	N57416	Boeing 737 MAX 9	Completed	1734 km
2026-09-12 17:02 UTC	UAL304	AUS → IAH Austin → Houston	N17272	Boeing 737 MAX 8	Completed (landing presumed)	317 km
2026-09-11 17:38 UTC	UAL304	AUS → IAH Austin → Houston	N889UA	Airbus A319	Completed (landing presumed)	352 km
2026-09-10 17:19 UTC	UAL304	AUS → IAH Austin → Houston	N811UA	Airbus A319	Completed	350 km
2026-09-09 17:06 UTC	UAL304	AUS → IAH Austin → Houston	N826UA	Airbus A319	Completed	276 km
2026-09-07 11:55 UTC	UAL304	BOS → SFO Boston → San Francisco	N17455	Boeing 737 MAX 9	Completed	4979 km
2026-09-06 11:49 UTC	UAL304	BOS → SFO Boston → San Francisco	N17420	Boeing 737 MAX 9	Completed	4731 km
2026-09-05 11:53 UTC	UAL304	BOS → SFO Boston → San Francisco	N77572	Boeing 737 MAX 9	Completed	4668 km
2026-09-04 11:39 UTC	UAL304	BOS → SFO Boston → San Francisco	N37541	Boeing 737 MAX 9	Completed	4735 km
2026-09-03 11:42 UTC	UAL304	BOS → SFO Boston → San Francisco	N17421	Boeing 737 MAX 9	Completed	4779 km
2026-09-02 12:07 UTC	UAL304	BOS → SFO Boston → San Francisco	N17414	Boeing 737 MAX 9	Completed	4833 km
2026-09-01 12:13 UTC	UAL304	BOS → SFO Boston → San Francisco	N17438	Boeing 737 MAX 9	Completed	4796 km
2026-08-31 11:32 UTC	UAL304	BOS → SFO Boston → San Francisco	N17454	Boeing 737 MAX 9	Completed	4950 km
2026-08-30 12:08 UTC	UAL304	BOS → SFO Boston → San Francisco	N17401	Boeing 737 MAX 9	Completed	4893 km
2026-08-29 11:45 UTC	UAL304	BOS → SFO Boston → San Francisco	N37577	Boeing 737 MAX 9	Completed	5092 km
2026-08-28 11:57 UTC	UAL304	BOS → SFO Boston → San Francisco	N47412	Boeing 737 MAX 9	Completed	4792 km
2026-08-27 12:22 UTC	UAL304	BOS → SFO Boston → San Francisco	N77559	Boeing 737 MAX 9	Completed	4869 km
2026-08-26 11:55 UTC	UAL304	BOS → SFO Boston → San Francisco	N37545	Boeing 737 MAX 9	Completed	4752 km
2026-08-25 12:19 UTC	UAL304	BOS → SFO Boston → San Francisco	N17550	Boeing 737 MAX 9	Completed	4919 km
2026-08-24 11:53 UTC	UAL304	BOS → SFO Boston → San Francisco	N37513	Boeing 737 MAX 9	Completed	4755 km
2026-08-23 12:05 UTC	UAL304	BOS → SFO Boston → San Francisco	N77558	Boeing 737 MAX 9	Completed	6367 km
2026-08-22 11:57 UTC	UAL304	BOS → SFO Boston → San Francisco	N17407	Boeing 737 MAX 9	Completed	6348 km
2026-08-21 12:02 UTC	UAL304	BOS → SFO Boston → San Francisco	N17459	Boeing 737 MAX 9	Completed	6080 km
2026-08-20 11:41 UTC	UAL304	BOS → SFO Boston → San Francisco	N17596	Boeing 737 MAX 9	Completed	6629 km
2026-08-19 11:50 UTC	UAL304	BOS → SFO Boston → San Francisco	N17460	Boeing 737 MAX 9	Completed	10788 km
2026-08-18 12:01 UTC	UAL304	BOS → SFO Boston → San Francisco	N47434	Boeing 737 MAX 9	Completed	10006 km
2026-08-17 11:40 UTC	UAL304	BOS → SFO Boston → San Francisco	N17431	Boeing 737 MAX 9	Completed	12619 km
2026-08-16 11:58 UTC	UAL304	BOS → SFO Boston → San Francisco	N77559	Boeing 737 MAX 9	Completed	6373 km
2026-08-15 11:48 UTC	UAL304	BOS → SFO Boston → San Francisco	N37507	Boeing 737 MAX 9	Completed	6448 km
2026-08-12 11:53 UTC	UAL304	BOS → SFO Boston → San Francisco	N27464	Boeing 737 MAX 9	Completed	6431 km
2026-08-11 12:08 UTC	UAL304	BOS → SFO Boston → San Francisco	N37445	Boeing 737 MAX 9	Completed	6687 km