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UAL2356

SFO → BOS · Boeing 737 MAX 9 · United Airlines

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For travellers

Departure · San Francisco (SFO)

Terminal T3 · Gate E10
Scheduled 10:50 · Departed 12:07 · +77 min
Board status: Departed
Airborne since 12:48 (ADS-B)

Arrival · Boston (BOS)

Terminal B · Gate B26 · Baggage belt 5
Scheduled 19:44 · Estimated 20:52 · +68 min
Board status: Now 8:52 PM
In the air, ~1h 39m to go (64% of the route flown)

Board data from bos, sfo, updated 53 min ago; times local to each airport.

Flight

Status
In progress
Departure
San Francisco International Airport (SFO) — San Francisco, United States
Scheduled departure
2026-10-02 17:50 UTC
Departed
2026-10-02 19:48 UTC
Arrival
General Edward Lawrence Logan International Airport (BOS) — Boston, United States (scheduled)
Scheduled arrival
2026-10-02 23:44 UTC
Estimated arrival
2026-10-03 00:52 UTC
Progress
64% · ~1h 39m remaining
Also flies as
UA2356
Codeshares
NZ9015, VA8309
Distance flown
2822 km
Straight-line distance
4341 km

Aircraft

Registration
N17479
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
31,025 ft
Max ground speed
516 kt
Tracked
3h 9m · 2,822 km
Note
still in progress - the track so far
Altitude (ft, max 31,025)
016,75433,5070m30m1h 0m1h 30m2h 0m2h 30m3h 0m
Ground speed (kt, max 516)
02795570m30m1h 0m1h 30m2h 0m2h 30m3h 0m
Altitude (ft, max 31,025)
016,75433,5070m1h 0m2h 0m3h 0m
Ground speed (kt, max 516)
02795570m1h 0m2h 0m3h 0m

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

DepartedFlightRouteRegAircraftStatusDistance
2026-10-02 19:48 UTC UAL2356 SFO → BOS
San Francisco → Boston
 N17479 Boeing 737 MAX 9 In progress ~4341 km est.
2026-10-02 14:20 UTC UAL2356 LAS → SFO
Las Vegas → San Francisco
 N14219 Boeing 737-800 Completed 761 km
2026-10-01 19:39 UTC UAL2356 SFO → BOS
San Francisco → Boston
 N37472 Boeing 737 MAX 9 Completed (landing confirmed by airport data) 4472 km
2026-10-01 15:20 UTC UAL2356 LAS → SFO
Las Vegas → San Francisco
 N76519 Boeing 737-800 Completed 764 km
2026-09-30 19:14 UTC UAL2356 SFO → BOS
San Francisco → Boston
 N17405 Boeing 737 MAX 9 Completed (landing confirmed by airport data) 4475 km
2026-09-30 14:26 UTC UAL2356 LAS → SFO
Las Vegas → San Francisco
 N26215 Boeing 737-800 Completed 755 km
2026-09-29 20:06 UTC UAL2356 SFO → BOS
San Francisco → Boston
 N37555 Boeing 737 MAX 9 Completed 4480 km
2026-09-29 14:37 UTC UAL2356 LAS → SFO
Las Vegas → San Francisco
 N17421 Boeing 737 MAX 9 Completed 754 km
2026-09-28 23:12 UTC UAL2356 SFO → BOS
San Francisco → Boston
 N17418 Boeing 737 MAX 9 Completed 4447 km
2026-09-28 19:19 UTC UAL2356 LAS → SFO
Las Vegas → San Francisco
 N33289 Boeing 737-800 Completed 833 km
2026-09-27 19:16 UTC UAL2356 SFO → BOS
San Francisco → Boston
 N37534 Boeing 737 MAX 9 Completed 4516 km
2026-09-27 15:50 UTC UAL2356 LAS → SFO
Las Vegas → San Francisco
 N78540 Boeing 737-800 Completed 816 km
2026-09-26 18:01 UTC UAL2356 SFO → BOS
San Francisco → Boston
 N77579 Boeing 737 MAX 9 Completed 4841 km
2026-09-26 14:22 UTC UAL2356 LAS → SFO
Las Vegas → San Francisco
 N17589 Boeing 737 MAX 9 Completed 749 km
2026-09-25 18:05 UTC UAL2356 SFO → BOS
San Francisco → Boston
 N17443 Boeing 737 MAX 9 Completed 4508 km
2026-09-25 15:22 UTC UAL2356 LAS → SFO
Las Vegas → San Francisco
 N77296 Boeing 737-800 Completed 770 km
2026-09-24 21:15 UTC UAL2356 SFO → BOS
San Francisco → Boston
 N77584 Boeing 737 MAX 9 Completed 4544 km
2026-09-24 14:28 UTC UAL2356 LAS → SFO
Las Vegas → San Francisco
 N17335 Boeing 737 MAX 8 Completed 755 km
2026-09-23 18:55 UTC UAL2356 SFO → BOS
San Francisco → Boston
 N77552 Boeing 737 MAX 9 Completed 4476 km
2026-09-23 15:17 UTC UAL2356 LAS → SFO
Las Vegas → San Francisco
 N77552 Boeing 737 MAX 9 Completed 785 km
2026-09-22 17:42 UTC UAL2356 SFO → BOS
San Francisco → Boston
 N37556 Boeing 737 MAX 9 Completed 4480 km
2026-09-21 19:04 UTC UAL2356 SFO → BOS
San Francisco → Boston
 N27464 Boeing 737 MAX 9 Completed 4532 km
2026-09-21 14:23 UTC UAL2356 LAS → SFO
Las Vegas → San Francisco
 N17448 Boeing 737 MAX 9 Completed 759 km
2026-09-20 19:40 UTC UAL2356 SFO → BOS
San Francisco → Boston
 N17421 Boeing 737 MAX 9 Completed 4448 km
2026-09-20 14:29 UTC UAL2356 LAS → SFO
Las Vegas → San Francisco
 N17566 Boeing 737 MAX 9 Completed 824 km
2026-09-19 17:20 UTC UAL2356 SFO → BOS
San Francisco → Boston
 N27568 Boeing 737 MAX 9 Completed 4696 km
2026-09-19 15:19 UTC UAL2356 LAS → SFO
Las Vegas → San Francisco
 N37542 Boeing 737 MAX 9 Completed 784 km
2026-09-18 18:43 UTC UAL2356 SFO → BOS
San Francisco → Boston
 N27586 Boeing 737 MAX 9 Completed 4858 km
2026-09-18 15:00 UTC UAL2356 LAS → SFO
Las Vegas → San Francisco
 N17465 Boeing 737 MAX 9 Completed 812 km
2026-09-17 20:53 UTC UAL2356 SFO → BOS
San Francisco → Boston
 N37551 Boeing 737 MAX 9 Completed 4760 km
2026-09-17 14:58 UTC UAL2356 LAS → SFO
Las Vegas → San Francisco
 N77587 Boeing 737 MAX 9 Completed 850 km
2026-09-16 18:53 UTC UAL2356 SFO → BOS
San Francisco → Boston
 N17405 Boeing 737 MAX 9 Completed 4701 km
2026-09-16 14:21 UTC UAL2356 LAS → SFO
Las Vegas → San Francisco
 N17408 Boeing 737 MAX 9 Completed 806 km
2026-09-15 17:09 UTC UAL2356 SFO → BOS
San Francisco → Boston
 N17437 Boeing 737 MAX 9 Completed 4868 km
2026-09-14 18:19 UTC UAL2356 SFO → BOS
San Francisco → Boston
 N17455 Boeing 737 MAX 9 Completed 4926 km
2026-09-14 14:11 UTC UAL2356 LAS → SFO
Las Vegas → San Francisco
 N17455 Boeing 737 MAX 9 Completed 789 km
2026-09-13 20:41 UTC UAL2356 SFO → BOS
San Francisco → Boston
 N37507 Boeing 737 MAX 9 Completed 4989 km
2026-09-13 14:17 UTC UAL2356 LAS → SFO
Las Vegas → San Francisco
 N37513 Boeing 737 MAX 9 Completed 932 km
2026-09-12 19:01 UTC UAL2356 SFO → BOS
San Francisco → Boston
 N17438 Boeing 737 MAX 9 Completed 4655 km
2026-09-12 14:17 UTC UAL2356 LAS → SFO
Las Vegas → San Francisco
 N47533 Boeing 737 MAX 9 Completed 796 km
2026-09-11 17:31 UTC UAL2356 SFO → BOS
San Francisco → Boston
 N17364 Boeing 737 MAX 8 Completed 4696 km
2026-09-10 19:50 UTC UAL2356 SFO → BOS
San Francisco → Boston
 N17358 Boeing 737 MAX 8 Completed 4784 km
2026-09-09 19:02 UTC UAL2356 SFO → BOS
San Francisco → Boston
 N77471 Boeing 737 MAX 9 Completed 4708 km
2026-09-09 14:10 UTC UAL2356 LAS → SFO
Las Vegas → San Francisco
 N17422 Boeing 737 MAX 9 Completed 805 km
2026-09-08 00:12 UTC UAL2356 BOS → BOS
Boston → Boston
 N17406 Boeing 737 MAX 9 Completed ~3 km est. (2 km recorded)
2026-09-07 19:01 UTC UAL2356 SFO → BOS
San Francisco → Boston
 N17406 Boeing 737 MAX 9 Completed 4747 km
2026-09-07 14:16 UTC UAL2356 LAS → SFO
Las Vegas → San Francisco
 N17406 Boeing 737 MAX 9 Completed 789 km
2026-09-06 22:00 UTC UAL2356 SFO → BOS
San Francisco → Boston
 N17437 Boeing 737 MAX 9 Completed 4873 km
2026-09-06 14:21 UTC UAL2356 LAS → SFO
Las Vegas → San Francisco
 N17557 Boeing 737 MAX 9 Completed 754 km
2026-09-05 15:42 UTC UAL2356 LAS → SFO
Las Vegas → San Francisco
 N77471 Boeing 737 MAX 9 Completed 782 km

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