Home / Routes / KSEA → KSFO8,174 scheduled
SEA SFO2h 8m

The route from Seattle Tacoma International Airport (KSEA) in Seattle to San Francisco International Airport (KSFO) in San Francisco. SkyMeter tracks roughly 8,174 scheduled flights on this route across 19 carriers. The most active operator is ASA (ASA). Average block time is 2h 4m. Departures average 39 minutes off schedule, with 66% running more than 15 minutes late. The most common aircraft on this route is the BOEING Boeing 737-900.

Scheduled
8,174
last 480 days
ADS-B observed
1,615
Airlines
19
Avg dep delay
39m
Late >15 min
65.8%
Cancel rate
1.04%

Airlines on this route

13 carriers · scheduled

Alaska Airlines
ASA · AS · 3,362 flights · avg 42m delay · 74.8% late
42 cancelled
United Airlines
UAL · UA · 2,702 flights · avg 36m delay · 53.3% late
18 cancelled
Delta Air Lines
DAL · DL · 2,072 flights · avg 38m delay · 67.8% late
25 cancelled
Netjets Aviation
EJA · 1I · 13 flights · avg 29m delay · 30.8% late
Flexjet
LXJ · LXJ · 6 flights · avg 24m delay · 50.0% late
Air Transport International
ATN · 8C · 4 flights · avg 10m delay · 0.0% late
Southwest Airlines Co
SWA · WN · 4 flights · avg 20m delay · 75.0% late
Vja
VJA · 3 flights · avg 43m delay · 66.7% late
Sky West Aviation
SKW · OO · 3 flights · avg 89m delay · 66.7% late
Presidential Aviation
PRD · 2 flights · avg —m delay · 0.0% late
Pacific Coast Jet
PXT · 1 flights · avg —m delay · 0.0% late
Aircraft Management Group
RVJ · 1 flights · avg 11m delay · 0.0% late
Wup
WUP · 1 flights · avg 56m delay · 100.0% late

Recent observed flights

From ADS-B trace data

ASA688N738ALB39M
2026-08-24 20:15  →  2026-08-24 22:23  ·  2h 7m
Replay
UAL2831N478UAA320
2026-08-24 17:13  →  2026-08-24 18:55  ·  1h 42m
Replay
EJA847N847QSC700
2026-08-24 16:26  →  2026-08-24 18:19  ·  1h 53m
Replay
ASA590N920AKB39M
2026-08-24 03:47  →  2026-08-24 05:56  ·  2h 8m
Replay
UAL737N17420B39M
2026-08-24 02:47  →  2026-08-24 04:39  ·  1h 51m
Replay
SKW3707N610CZE75L
2026-08-23 21:45  →  2026-08-23 23:53  ·  2h 7m
Replay
ASA680N842AKB38M
2026-08-23 20:41  →  2026-08-23 22:41  ·  2h 0m
Replay
UAL2281N464UAA320
2026-08-23 20:13  →  2026-08-23 22:08  ·  1h 54m
Replay
ASA655N297AKB739
2026-08-23 19:30  →  2026-08-23 21:30  ·  2h 0m
Replay
UAL1482N454UAA320
2026-08-23 18:44  →  2026-08-23 20:47  ·  2h 3m
Replay

Codeshare partnerships

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

sells ASA 2749
sells ASA 2431
sells ASA 2224
sells UAL 2216
sells UAL 2208
sells ASA 1610
sells DAL 1508
sells ASA 1077
sells UAL 1056
sells ASA 934
sells ASA 858
sells DAL 819
sells UAL 718
sells ASA 717
sells ASA 667
sells UAL 664
sells DAL 660
sells DAL 620
sells UAL 574
sells ASA 518

Typical aircraft

Observed via ADS-B on this route

BOEING Boeing 737-900
B739
22%
of flights
BOEING Boeing 737 MAX 9
B39M
18%
of flights
AIRBUS Airbus A320
A320
18%
of flights
EMBRAER Embraer 175 long wing
E75L
13%
of flights
AIRBUS-BOMBARDIER Airbus A220-300
BCS3
12%
of flights
BOEING Boeing 737-800
B738
7%
of flights
BOEING Boeing 737 MAX 8
B38M
4%
of flights
AIRBUS Airbus A319
A319
1%
of flights

Looking for the return flight?

View KSFO → KSEA