SKW3991

For travellers

Departure · San Francisco (SFO)

Terminal T1 · Gate C11

Scheduled 01 Oct 20:59 · Departed 01 Oct 22:44 · +105 min

Board status: Departed

Airborne since 01 Oct 23:01 (ADS-B)

Board data from sfo, updated 272 min ago; times local to each airport.

Flight

Status

Completed

Arrival confirmed via

ADS-B (ground reading)

Departure

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

Scheduled departure

2026-10-02 03:59 UTC

Departed

2026-10-02 06:01 UTC

Arrival

Seattle Tacoma International Airport (SEA) — Seattle, United States

Also flies as

DL3991

Codeshares

SK3470, VS1906

Distance flown

1131 km

Straight-line distance

1093 km

Approach distance

67 km

Aircraft

Registration

N260SY

Type

EMBRAER EMB175

Seats

76 total (12 Business, 64 Economy)

CO2 (EMEP est., total)

16.9 t (167 kg/pax Economy, 512 kg/pax Business)

Altitude & speed

Max altitude

36,025 ft

Max ground speed

469 kt

Tracked

1h 42m · 1,130 km

Altitude (ft, max 36,025)

Ground speed (kt, max 469)

Altitude (ft, max 36,025)

Ground speed (kt, max 469)

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

Skywest Airlines (SKW)

Latest flights

Departed	Flight	Route	Reg	Aircraft	Status	Distance
2026-10-02 06:01 UTC	SKW3991	SFO → SEA San Francisco → Seattle	N260SY	EMBRAER EMB175	Completed	1131 km
2026-10-02 03:20 UTC	SKW3991	SEA → SFO Seattle → San Francisco	N260SY	EMBRAER EMB175	Completed	1237 km
2026-10-01 04:08 UTC	SKW3991	SFO → SEA San Francisco → Seattle	N315SY	EMBRAER EMB175	Completed	1130 km
2026-10-01 01:08 UTC	SKW3991	SEA → SFO Seattle → San Francisco	N315SY	EMBRAER EMB175	Completed	1258 km
2026-09-30 04:41 UTC	SKW3991	SFO → SEA San Francisco → Seattle	N274SY	EMBRAER EMB175	Completed	1125 km
2026-09-30 01:49 UTC	SKW3991	SEA → SFO Seattle → San Francisco	N274SY	EMBRAER EMB175	Completed	1230 km
2026-09-29 05:20 UTC	SKW3991	SFO → SEA San Francisco → Seattle	N315SY	EMBRAER EMB175	Completed	1164 km
2026-09-29 02:35 UTC	SKW3991	SEA → SFO Seattle → San Francisco	N315SY	EMBRAER EMB175	Completed	1227 km
2026-09-28 04:33 UTC	SKW3991	SFO → SEA San Francisco → Seattle	N326SY	EMBRAER EMB175	Completed	1132 km
2026-09-28 01:30 UTC	SKW3991	SEA → SFO Seattle → San Francisco	N326SY	EMBRAER EMB175	Completed	1336 km
2026-09-27 04:03 UTC	SKW3991	SFO → SEA San Francisco → Seattle	N614CZ	EMBRAER EMB175	Completed	1125 km
2026-09-27 00:56 UTC	SKW3991	SEA → SFO Seattle → San Francisco	N614CZ	EMBRAER EMB175	Completed	1260 km
2026-09-26 04:48 UTC	SKW3991	SFO → SEA San Francisco → Seattle	N283SY	EMBRAER EMB175	Completed	1169 km
2026-09-26 01:32 UTC	SKW3991	SEA → SFO Seattle → San Francisco	N283SY	EMBRAER EMB175	Completed	1242 km
2026-09-25 04:15 UTC	SKW3991	SFO → SEA San Francisco → Seattle	N326SY	EMBRAER EMB175	Completed	1178 km
2026-09-25 01:06 UTC	SKW3991	SEA → SFO Seattle → San Francisco	N326SY	EMBRAER EMB175	Completed	1247 km
2026-09-24 04:14 UTC	SKW3991	SFO → SEA San Francisco → Seattle	N309SY	EMBRAER EMB175	Completed	1132 km
2026-09-24 01:10 UTC	SKW3991	SEA → SFO Seattle → San Francisco	N309SY	EMBRAER EMB175	Completed	1284 km
2026-09-23 04:12 UTC	SKW3991	SFO → SEA San Francisco → Seattle	N252SY	EMBRAER EMB175	Completed	1175 km
2026-09-23 01:05 UTC	SKW3991	SEA → SFO Seattle → San Francisco	N252SY	EMBRAER EMB175	Completed	1233 km
2026-09-22 04:36 UTC	SKW3991	SFO → SEA San Francisco → Seattle	N317SY	EMBRAER EMB175	Completed	1130 km
2026-09-22 01:26 UTC	SKW3991	SEA → SFO Seattle → San Francisco	N317SY	EMBRAER EMB175	Completed	1265 km
2026-09-21 04:24 UTC	SKW3991	SFO → SEA San Francisco → Seattle	N320SY	EMBRAER EMB175	Completed	1127 km
2026-09-21 01:05 UTC	SKW3991	SEA → SFO Seattle → San Francisco	N320SY	EMBRAER EMB175	Completed	1216 km
2026-09-20 04:09 UTC	SKW3991	SFO → SEA San Francisco → Seattle	N256SY	EMBRAER EMB175	Completed	1194 km
2026-09-20 00:55 UTC	SKW3991	SEA → SFO Seattle → San Francisco	N256SY	EMBRAER EMB175	Completed	1275 km
2026-09-19 05:37 UTC	SKW3991	SFO → SEA San Francisco → Seattle	N260SY	EMBRAER EMB175	Completed	1202 km
2026-09-19 01:33 UTC	SKW3991	SEA → SFO Seattle → San Francisco	N260SY	EMBRAER EMB175	Completed	1352 km
2026-09-18 04:34 UTC	SKW3991	SFO → SEA San Francisco → Seattle	N320SY	EMBRAER EMB175	Completed	1198 km
2026-09-18 01:20 UTC	SKW3991	SEA → SFO Seattle → San Francisco	N320SY	EMBRAER EMB175	Completed	1343 km
2026-09-17 05:51 UTC	SKW3991	SFO → SEA San Francisco → Seattle	N320SY	EMBRAER EMB175	Completed	1177 km
2026-09-17 02:51 UTC	SKW3991	SEA → SFO Seattle → San Francisco	N320SY	EMBRAER EMB175	Completed	1410 km
2026-09-16 05:24 UTC	SKW3991	SFO → SEA San Francisco → Seattle	N320SY	EMBRAER EMB175	Completed	1205 km
2026-09-16 01:14 UTC	SKW3991	SEA → SFO Seattle → San Francisco	N320SY	EMBRAER EMB175	Completed	1278 km
2026-09-15 04:11 UTC	SKW3991	SFO → SEA San Francisco → Seattle	N319SY	EMBRAER EMB175	Completed	1212 km
2026-09-15 00:47 UTC	SKW3991	SEA → SFO Seattle → San Francisco	N319SY	EMBRAER EMB175	Completed	1321 km
2026-09-14 04:10 UTC	SKW3991	SFO → SEA San Francisco → Seattle	N255SY	EMBRAER EMB175	Completed	1229 km
2026-09-14 01:15 UTC	SKW3991	SEA → SFO Seattle → San Francisco	N255SY	EMBRAER EMB175	Completed	1291 km
2026-09-08 04:12 UTC	SKW3991	SFO → SEA San Francisco → Seattle	N255SY	EMBRAER EMB175	Completed	1168 km
2026-09-08 01:01 UTC	SKW3991	SEA → SFO Seattle → San Francisco	N255SY	EMBRAER EMB175	Completed	1312 km
2026-09-05 05:06 UTC	SKW3991	SFO → SEA San Francisco → Seattle	N261SY	EMBRAER EMB175	Completed	1214 km
2026-09-05 01:52 UTC	SKW3991	SEA → SFO Seattle → San Francisco	N261SY	EMBRAER EMB175	Completed	1284 km
2026-09-04 04:48 UTC	SKW3991	SFO → SEA San Francisco → Seattle	N293SY	EMBRAER EMB175	Completed	1235 km
2026-09-04 01:30 UTC	SKW3991	SEA → SFO Seattle → San Francisco	N293SY	EMBRAER EMB175	Completed	1325 km
2026-09-03 04:25 UTC	SKW3991	SFO → SEA San Francisco → Seattle	N306SY	EMBRAER EMB175	Completed	1214 km
2026-09-03 00:51 UTC	SKW3991	SEA → SFO Seattle → San Francisco	N306SY	EMBRAER EMB175	Completed	1310 km
2026-09-02 04:00 UTC	SKW3991	SFO → SEA San Francisco → Seattle	N315SY	EMBRAER EMB175	Completed	1171 km
2026-09-02 00:48 UTC	SKW3991	SEA → SFO Seattle → San Francisco	N315SY	EMBRAER EMB175	Completed	1270 km
2026-09-01 05:08 UTC	SKW3991	SFO → SEA San Francisco → Seattle	N246SY	EMBRAER EMB175	Completed	1165 km
2026-09-01 02:09 UTC	SKW3991	SEA → SFO Seattle → San Francisco	N246SY	EMBRAER EMB175	Completed	1309 km