Home / Routes / KSFO → KBOS4,984 scheduled
SFO BOS5h 43m

The route from San Francisco International Airport (KSFO) in San Francisco to General Edward Lawrence Logan International Airport (KBOS) in Boston. SkyMeter tracks roughly 4,984 scheduled flights on this route across 22 carriers. The most active operator is UAL (UAL). Average block time is 5h 32m. Departures average 36 minutes off schedule, with 59% running more than 15 minutes late. The most common aircraft on this route is the BOEING Boeing 737 MAX 9.

Scheduled
4,984
last 452 days
ADS-B observed
1,084
Airlines
22
Avg dep delay
36m
Late >15 min
59.2%
Cancel rate
1.18%

Airlines on this route

15 carriers · scheduled

United Airlines
UAL · UA · 1,913 flights · avg 40m delay · 72.5% late
18 cancelled
Jetblue Airwaysoration
JBU · B6 · 1,721 flights · avg 34m delay · 43.9% late
28 cancelled
Delta Air Lines
DAL · DL · 932 flights · avg 33m delay · 57.6% late
12 cancelled
Alaska Airlines
ASA · AS · 343 flights · avg 30m delay · 67.3% late
1 cancelled
Netjets Aviation
EJA · 1I · 43 flights · avg 40m delay · 53.5% late
Flexjet
LXJ · LXJ · 9 flights · avg 47m delay · 77.8% late
Vja
VJA · 7 flights · avg 50m delay · 85.7% late
Executive Jet Management
EJM · EJM · 5 flights · avg 22m delay · 20.0% late
Sunset Aviation
TWY · 4 flights · avg 540m delay · 50.0% late
Pod
POD · 2 flights · avg 10m delay · 0.0% late
Pacific Coast Jet
PXT · 1 flights · avg 58m delay · 100.0% late
Baker Aviation
KOW · 1 flights · avg 44m delay · 100.0% late
Southwest Airlines Co
SWA · WN · 1 flights · avg 99m delay · 100.0% late
Gryphon Air
GRP · 1 flights · avg —m delay · 0.0% late
Corporate Flight International Dba Thrive Aviation
TIV · 1 flights · avg 10m delay · 0.0% late

Recent observed flights

From ADS-B trace data

UAL2356N17461B39M
2026-07-27 17:21  →  2026-07-27 23:09  ·  5h 47m
Replay
JBU1734N943JTA321
2026-07-27 16:55  →  2026-07-27 22:54  ·  5h 59m
Replay
UAL2647N27526B39M
2026-07-27 15:04  →  2026-07-27 20:55  ·  5h 51m
Replay
DAL400N501DAA21N
2026-07-27 14:07  →  2026-07-27 19:27  ·  5h 20m
Replay
UAL1015N77579B39M
2026-07-27 13:54  →  2026-07-27 19:36  ·  5h 42m
Replay
JBU434N979JTA321
2026-07-27 13:17  →  2026-07-27 18:41  ·  5h 24m
Replay
JBU1034N987JTA321
2026-07-27 07:00  →  2026-07-27 12:46  ·  5h 45m
Replay
UAL1665N37563B39M
2026-07-27 06:00  →  2026-07-27 11:33  ·  5h 32m
Replay
DAL1655N599DAA21N
2026-07-27 05:05  →  2026-07-27 10:37  ·  5h 32m
Replay
JBU134N978JBA321
2026-07-27 04:50  →  2026-07-27 10:25  ·  5h 35m
Replay

Codeshare partnerships

Marketing carriers selling tickets on this route under their own flight numbers

sells UAL 1754
sells UAL 1754
sells JBU 1463
sells JBU 773
sells JBU 689
sells DAL 592
sells JBU 544
sells JBU 360
sells DAL 359
sells UAL 358
sells ASA 343
sells ASA 343
sells ASA 343
sells ASA 343
sells DAL 309
sells DAL 306
sells ASA 250
sells DAL 164
sells JBU 148
sells DAL 137

Typical aircraft

Observed via ADS-B on this route

BOEING Boeing 737 MAX 9
B39M
39%
of flights
AIRBUS Airbus A321 Neo
A21N
28%
of flights
AIRBUS Airbus A321
A321
28%
of flights
AIRBUS Airbus A320 Neo
A20N
1%
of flights
BOEING Boeing 757-200
B752
1%
of flights
BOEING Boeing 737-900
B739
0%
of flights
CESSNA Cessna Citation Longitude
C700
0%
of flights
BOEING Boeing 737 MAX 8
B38M
0%
of flights

Looking for the return flight?

View KBOS → KSFO