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Southwest Airlines flight WN3878 status

15 Nov
WN3878
SWA3878

EST. DEPART IN 13h 23m

06:05
San Jose, CA
SJC
08:35
Denver, CO
DEN
02h30m
N8778Q (B38M)
822 NM
Estimated
06:05
In 13 hours
Estimated
08:35
In 16 hours
WN3878
SWA3878

EST. DEPART IN 13h 23m

Sunday, November 15 2026
22:05 PST
DELAYED
Scheduled 21:50
In 13 hours
Monday, November 16 2026
01:35 MST
DELAYED
Scheduled 01:20
In 16 hours

WN3878 live flight status

Southwest Airlines flight WN3878 (SWA3878) operates from San Jose (SJC) to Denver (DEN). The next WN3878 flight is scheduled to depart San Jose at 22:05 PST on 15 Nov, arriving in Denver at 01:35 MST. It is flown with a Boeing 737-8 (N8778Q).

Future

15Nov
WN3878
Estimated
21:50PST
01:20MST
San Jose (SJC)Denver (DEN)

Past

14Nov
WN3878
Landed 15:12 EST
12:35EST
15:20EST
Orlando (MCO)Buffalo (BUF)
13Nov
WN3878
Cancelled
21:50PST
01:20MST
San Jose (SJC)Denver (DEN)
12Nov
WN3878
Landed 01:00 MST
21:50PST
01:20MST
San Jose (SJC)Denver (DEN)
9Nov
WN3878
Landed 01:31 MST
21:50PST
01:20MST
San Jose (SJC)Denver (DEN)
8Nov
WN3878
Landed 00:56 MST
21:50PST
01:20MST
San Jose (SJC)Denver (DEN)
Future

Date

Flight

Origin

STD

ATD

Destination

STA

Aircraft

Delay

Status

Duration

Nov 15
WN3878
SWA3878
San Jose
KSJC
SJC
21:50 PST
Denver
KDEN
DEN
01:20 MST
Estimated
02h30m
Past

Date

Flight

Origin

STD

ATD

Destination

STA

Aircraft

Delay

Status

Duration

Nov 14
WN3878
SWA3878
Orlando
KMCO
MCO
12:35 EST
12:48 EST
Buffalo
KBUF
BUF
15:20 EST
Landed 15:12 EST
Time aircraft arrives at gate derived from company/airport information
02h10m
Nov 13
WN3878
SWA3878
San Jose
KSJC
SJC
21:50 PST
Denver
KDEN
DEN
01:20 MST
Cancelled
02h30m
Nov 12
WN3878
SWA3878
San Jose
KSJC
SJC
21:50 PST
21:41 PST
Denver
KDEN
DEN
01:20 MST
Landed 01:00 MST
Time aircraft arrives at gate derived from company/airport information
02h00m
Nov 9
WN3878
SWA3878
San Jose
KSJC
SJC
21:50 PST
22:12 PST
Denver
KDEN
DEN
01:20 MST
Landed 01:31 MST
Time aircraft arrives at gate derived from company/airport information
02h01m
Nov 8
WN3878
SWA3878
San Jose
KSJC
SJC
21:50 PST
21:40 PST
Denver
KDEN
DEN
01:20 MST
Landed 00:56 MST
Time aircraft arrives at gate derived from company/airport information
01h59m

WN3878 frequently asked questions

Is WN3878 on time?

WN3878 is scheduled to depart San Jose on 15 Nov at 22:05 PST (15 min late).

Where does WN3878 fly from and to?

WN3878 flies from Terminal B at Norman Y. Mineta San Jose International Airport (SJC) to Denver International Airport (DEN).

How long is the WN3878 flight?

WN3878 usually takes about 02h00m to fly the 1523 km from San Jose to Denver.

What time does WN3878 depart and arrive?

WN3878 is scheduled to depart San Jose at 21:50 PST and arrive in Denver at 01:20 MST.

What aircraft does WN3878 use?

WN3878 is usually flown with a Boeing 737-8. The aircraft on 15 Nov is N8778Q.

How often is WN3878 delayed?

In the last 7 days, WN3878 arrived on time on 3 of 3 flights.

How can I track WN3878 live?

You can follow WN3878 live on the AirNav Radar map, see its track log and set up flight alerts in the AirNav Radar app.