DAL977

For travellers

Departure · Boston (BOS)

Terminal A · Gate A16

Scheduled 07:35 · Departed 07:30 · early

Board status: Departed

Airborne since 07:45 (ADS-B)

Arrival · San Francisco (SFO)

Terminal T1 · Gate C5 · Baggage belt CL-B9

Scheduled 11:04 · Estimated 10:52 · early

Board status: On time

In the air, ~4h 5m to go (34% of the route flown)

Board data from bos, sfo, updated 24 min ago; times local to each airport.

Flight

Status

In progress

Departure

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

Scheduled departure

2026-10-04 11:35 UTC

Departed

2026-10-04 11:45 UTC

Arrival

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

Scheduled arrival

2026-10-04 18:04 UTC

Estimated arrival

2026-10-04 17:52 UTC

Progress

34% · ~4h 5m remaining

Also flies as

DL977

Codeshares

KE3255, LY4578, WS7983

Distance flown

1514 km

Straight-line distance

4341 km

Aircraft

Registration

N598DN

Type

Airbus A321 Neo

Seats

194 total (132 Economy, 42 Delta Comfort+, 20 First) (typical for type, not this tail)

Altitude & speed

Max altitude

34,025 ft

Max ground speed

442 kt

Tracked

2h 9m · 1,514 km

Note

still in progress - the track so far

Altitude (ft, max 34,025)

Ground speed (kt, max 442)

Altitude (ft, max 34,025)

Ground speed (kt, max 442)

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

Delta Air Lines (DAL)

Latest flights

Departed	Flight	Route	Reg	Aircraft	Status	Distance
2026-10-04 11:45 UTC	DAL977	BOS → SFO Boston → San Francisco	N598DN	Airbus A321 Neo	In progress	~4341 km est.
2026-10-03 19:40 UTC	DAL977	SFO → BOS San Francisco → Boston	N582DN	Airbus A321 Neo	Completed (landing confirmed by airport data)	4441 km
2026-10-03 11:24 UTC	DAL977	BOS → SFO Boston → San Francisco	N582DN	Airbus A321 Neo	Completed	4484 km
2026-10-02 20:14 UTC	DAL977	SFO → BOS San Francisco → Boston	N606DN	Airbus A321 Neo	Completed	4487 km
2026-10-02 11:58 UTC	DAL977	BOS → SFO Boston → San Francisco	N606DN	Airbus A321 Neo	Completed	4623 km
2026-10-01 19:51 UTC	DAL977	SFO → BOS San Francisco → Boston	N579DT	Airbus A321 Neo	Completed	4441 km
2026-10-01 11:53 UTC	DAL977	BOS → SFO Boston → San Francisco	N579DT	Airbus A321 Neo	Completed	4496 km
2026-09-30 20:34 UTC	DAL977	SFO → BOS San Francisco → Boston	N606DN	Airbus A321 Neo	Completed	4427 km
2026-09-30 14:34 UTC	DAL977	CVG → SFO Cincinnati / Covington → San Francisco	N606DN	Airbus A321 Neo	Completed	3351 km
2026-09-30 11:48 UTC	DAL977	BOS → CVG Boston → Cincinnati / Covington	N606DN	Airbus A321 Neo	Completed	1245 km
2026-09-29 20:39 UTC	DAL977	SFO → BOS San Francisco → Boston	N606DN	Airbus A321 Neo	Completed	4582 km
2026-09-29 14:15 UTC	DAL977	CMH → SFO Columbus → San Francisco	N606DN	Airbus A321 Neo	Completed	3446 km
2026-09-29 11:49 UTC	DAL977	BOS → CMH Boston → Columbus	N606DN	Airbus A321 Neo	Completed	1102 km
2026-09-28 22:22 UTC	DAL977	SFO → BOS San Francisco → Boston	N606DN	Airbus A321 Neo	Completed	4483 km
2026-09-28 15:28 UTC	DAL977	CMH → SFO Columbus → San Francisco	N606DN	Airbus A321 Neo	Completed	3445 km
2026-09-28 12:43 UTC	DAL977	BOS → CMH Boston → Columbus	N606DN	Airbus A321 Neo	Completed	1151 km
2026-09-25 19:45 UTC	DAL977	SFO → BOS San Francisco → Boston	N584DN	Airbus A321 Neo	Completed	4473 km
2026-09-25 11:29 UTC	DAL977	BOS → SFO Boston → San Francisco	N584DN	Airbus A321 Neo	Completed	4478 km
2026-09-24 20:59 UTC	DAL977	SFO → BOS San Francisco → Boston	N619DN	Airbus A321 Neo	Completed	4605 km
2026-09-24 11:44 UTC	DAL977	BOS → SFO Boston → San Francisco	N619DN	Airbus A321 Neo	Completed	4486 km
2026-09-23 20:32 UTC	DAL977	SFO → BOS San Francisco → Boston	N619DN	Airbus A321 Neo	Completed	4498 km
2026-09-23 11:41 UTC	DAL977	BOS → SFO Boston → San Francisco	N619DN	Airbus A321 Neo	Completed	4477 km
2026-09-22 20:07 UTC	DAL977	SFO → BOS San Francisco → Boston	N612DN	Airbus A321 Neo	Completed	4524 km
2026-09-22 11:43 UTC	DAL977	BOS → SFO Boston → San Francisco	N612DN	Airbus A321 Neo	Completed	4699 km
2026-09-21 20:51 UTC	DAL977	SFO → BOS San Francisco → Boston	N575DN	Airbus A321 Neo	Completed	4568 km
2026-09-21 11:57 UTC	DAL977	BOS → SFO Boston → San Francisco	N575DN	Airbus A321 Neo	Completed	4592 km
2026-09-20 20:20 UTC	DAL977	SFO → BOS San Francisco → Boston	N607DN	Airbus A321 Neo	Completed	4475 km
2026-09-20 11:58 UTC	DAL977	BOS → SFO Boston → San Francisco	N607DN	Airbus A321 Neo	Completed	4710 km
2026-09-19 19:30 UTC	DAL977	SFO → BOS San Francisco → Boston	N615DN	Airbus A321 Neo	Completed	4614 km
2026-09-19 11:44 UTC	DAL977	BOS → SFO Boston → San Francisco	N615DN	Airbus A321 Neo	Completed	4853 km
2026-09-18 19:49 UTC	DAL977	SFO → BOS San Francisco → Boston	N573DT	Airbus A321 Neo	Completed	4646 km
2026-09-18 11:37 UTC	DAL977	BOS → SFO Boston → San Francisco	N573DT	Airbus A321 Neo	Completed	4769 km
2026-09-17 22:21 UTC	DAL977	SFO → BOS San Francisco → Boston	N610DN	Airbus A321 Neo	Completed	4650 km
2026-09-17 11:35 UTC	DAL977	BOS → SFO Boston → San Francisco	N610DN	Airbus A321 Neo	Completed	4742 km
2026-09-16 20:42 UTC	DAL977	SFO → BOS San Francisco → Boston	N608DN	Airbus A321 Neo	Completed	4670 km
2026-09-16 11:47 UTC	DAL977	BOS → SFO Boston → San Francisco	N608DN	Airbus A321 Neo	Completed	4776 km
2026-09-15 19:52 UTC	DAL977	SFO → BOS San Francisco → Boston	N597DT	Airbus A321 Neo	Completed	4682 km
2026-09-15 11:49 UTC	DAL977	BOS → SFO Boston → San Francisco	N597DT	Airbus A321 Neo	Completed	4828 km
2026-09-14 20:11 UTC	DAL977	SFO → BOS San Francisco → Boston	N611DT	Airbus A321 Neo	Completed	4749 km
2026-09-14 11:40 UTC	DAL977	BOS → SFO Boston → San Francisco	N611DT	Airbus A321 Neo	Completed	4960 km
2026-09-13 21:50 UTC	DAL977	SFO → BOS San Francisco → Boston	N600DZ	Airbus A321 Neo	Completed	4958 km
2026-09-13 11:31 UTC	DAL977	BOS → SFO Boston → San Francisco	N600DZ	Airbus A321 Neo	Completed	4792 km
2026-09-12 19:49 UTC	DAL977	SFO → BOS San Francisco → Boston	N588DT	Airbus A321 Neo	Completed	4593 km
2026-09-12 11:51 UTC	DAL977	BOS → SFO Boston → San Francisco	N588DT	Airbus A321 Neo	Completed	4740 km
2026-09-11 20:27 UTC	DAL977	SFO → BOS San Francisco → Boston	N584DN	Airbus A321 Neo	Completed	4816 km
2026-09-11 11:28 UTC	DAL977	BOS → SFO Boston → San Francisco	N584DN	Airbus A321 Neo	Completed	4849 km
2026-09-10 19:59 UTC	DAL977	SFO → BOS San Francisco → Boston	N599DA	Airbus A321 Neo	Completed	4825 km
2026-09-10 11:45 UTC	DAL977	BOS → SFO Boston → San Francisco	N599DA	Airbus A321 Neo	Completed	4841 km
2026-09-09 20:13 UTC	DAL977	SFO → BOS San Francisco → Boston	N590DT	Airbus A321 Neo	Completed	4783 km
2026-09-09 11:35 UTC	DAL977	BOS → SFO Boston → San Francisco	N590DT	Airbus A321 Neo	Completed	4701 km