Southwest Airlines

SWA3878 / WN3878

ICAO: SWA3878 IATA: WN3878

Click here to see all flights

Flight schedule

Select flight date

Departure

Arrive

Aircraft

Effective

Avalibility

16:10

Phoenix (PHX) T4

22:30

Louisville (SDF)

Boeing 737-800 (winglets) Passenger/BBJ2

Begins

Now

Valid to

2026-06-03

sun

mon

tue

wed

thu

fri

sat

Tuesdays and Wednesdays

Southwest Airlines

SWA3878

Duration

3h 20m

Distance

1511 mi, 2431 km

Coreshare

Same day flight

Yes

Terminal

Departure: T4

Meals

Seats

165

Economy

165

22:40

Houston (HOU)

00:05

Midland (MAF)

Boeing 737-800 (winglets) Passenger/BBJ2

Operates only

2026-06-04

sun

mon

tue

wed

thu

fri

sat

Every Thursday

Southwest Airlines

SWA3878

Duration

1h 25m

Distance

442 mi, 711 km

Coreshare

Same day flight

Terminal

Meals

Seats

165

Economy

165

16:00

Santa Rosa (STS)

17:20

Burbank (BUR)

Boeing 737-700 Passenger (Scimitar Winglets)

Begins

2026-06-07

Valid to

2026-08-02

sun

mon

tue

wed

thu

fri

sat

Every Sunday

Southwest Airlines

SWA3878

Duration

1h 20m

Distance

389 mi, 626 km

Coreshare

Same day flight

Yes

Terminal

Meals

Seats

137

Economy

137

20:45

Saint Louis (STL) T2

21:55

Phoenix (PHX) T4

Boeing 737-800 (winglets) Passenger/BBJ2

Begins

2026-08-04

Valid to

2026-09-30

sun

mon

tue

wed

thu

fri

sat

Tuesdays and Wednesdays

Southwest Airlines

SWA3878

Duration

3h 10m

Distance

1266 mi, 2037 km

Coreshare

Same day flight

Yes

Terminal

Departure: T2 Arrival: T4

Meals

Seats

165

Economy

165

20:45

Saint Louis (STL) T2

21:55

Phoenix (PHX) T4

Boeing 737MAX 8 Passenger

Begins

2026-08-06

Valid to

2026-09-28

sun

mon

tue

wed

thu

fri

sat

Every Monday, Thursday and Friday

Southwest Airlines

SWA3878

Duration

3h 10m

Distance

1266 mi, 2037 km

Coreshare

Same day flight

Yes

Terminal

Departure: T2 Arrival: T4

Meals

Seats

175

Economy

175

21:15

Saint Louis (STL) T2

22:25

Phoenix (PHX) T4

Boeing 737MAX 8 Passenger

Begins

2026-08-09

Valid to

2026-08-30

sun

mon

tue

wed

thu

fri

sat

Every Sunday

Southwest Airlines

SWA3878

Duration

3h 10m

Distance

1266 mi, 2037 km

Coreshare

Same day flight

Yes

Terminal

Departure: T2 Arrival: T4

Meals

Seats

175

Economy

175

19:45

Saint Louis (STL) T2

20:55

Phoenix (PHX) T4

Boeing 737MAX 8 Passenger

Operates only

2026-09-06

sun

mon

tue

wed

thu

fri

sat

Every Sunday

Southwest Airlines

SWA3878

Duration

3h 10m

Distance

1266 mi, 2037 km

Coreshare

Same day flight

Yes

Terminal

Departure: T2 Arrival: T4

Meals

Seats

175

Economy

175

21:15

Saint Louis (STL) T2

22:25

Phoenix (PHX) T4

Boeing 737MAX 8 Passenger

Begins

2026-09-13

Valid to

2026-09-27

sun

mon

tue

wed

thu

fri

sat

Every Sunday

Southwest Airlines

SWA3878

Duration

3h 10m

Distance

1266 mi, 2037 km

Coreshare

Same day flight

Yes

Terminal

Departure: T2 Arrival: T4

Meals

Seats

175

Economy

175

17:20

Salt Lake City (SLC)

18:50

Denver (DEN)

Boeing 737-800 (winglets) Passenger/BBJ2

Begins

2026-10-01

Valid to

2026-10-30

sun

mon

tue

wed

thu

fri

sat

Every Monday, Thursday and Friday

Southwest Airlines

SWA3878

Duration

1h 30m

Distance

392 mi, 631 km

Coreshare

Same day flight

Yes

Terminal

Meals

Seats

165

Economy

165

20:45

Salt Lake City (SLC)

22:10

Denver (DEN)

Boeing 737-700 Passenger (Scimitar Winglets)

Begins

2026-10-04

Valid to

2026-10-25

sun

mon

tue

wed

thu

fri

sat

Every Sunday

Southwest Airlines

SWA3878

Duration

1h 25m

Distance

392 mi, 631 km

Coreshare

Same day flight

Yes

Terminal

Meals

Seats

137

Economy

137

18:45

Salt Lake City (SLC)

20:10

Denver (DEN)

Boeing 737MAX 8 Passenger

Begins

2026-10-06

Valid to

2026-10-28

sun

mon

tue

wed

thu

fri

sat

Tuesdays and Wednesdays

Southwest Airlines

SWA3878

Duration

1h 25m

Distance

392 mi, 631 km

Coreshare

Same day flight

Yes

Terminal

Meals

Seats

175

Economy

175

21:50

San Jose (SJC) TB

01:15

Denver (DEN)

Boeing 737MAX 8 Passenger

Begins

2026-11-01

Valid to

2026-11-15

sun

mon

tue

wed

thu

fri

sat

Every Monday, Thursday, Friday and Sunday

Southwest Airlines

SWA3878

Duration

2h 25m

Distance

951 mi, 1530 km

Coreshare

Same day flight

Terminal

Departure: TB

Meals

Seats

175

Economy

175

12:35

Orlando (MCO)

15:20

Buffalo (BUF)

Boeing 737MAX 8 Passenger

Begins

2026-11-07

Valid to

2026-11-14

sun

mon

tue

wed

thu

fri

sat

Every Saturday

Southwest Airlines

SWA3878

Duration

2h 45m

Distance

1018 mi, 1638 km

Coreshare

Same day flight

Yes

Terminal

Meals

Seats

175

Economy

175

21:50

San Jose (SJC) TB

01:15

Denver (DEN)

Boeing 737MAX 8 Passenger

Begins

2026-11-20

Valid to

2026-11-27

sun

mon

tue

wed

thu

fri

sat

Every Monday, Friday and Sunday

Southwest Airlines

SWA3878

Duration

2h 25m

Distance

951 mi, 1530 km

Coreshare

Same day flight

Terminal

Departure: TB

Meals

Seats

175

Economy

175

20:40

San Jose (SJC) TB

00:05

Denver (DEN)

Boeing 737MAX 8 Passenger

Begins

2026-11-21

Valid to

2026-11-28

sun

mon

tue

wed

thu

fri

sat

Every Saturday

Southwest Airlines

SWA3878

Duration

2h 25m

Distance

951 mi, 1530 km

Coreshare

Same day flight

Terminal

Departure: TB

Meals

Seats

175

Economy

175

20:20

San Jose (SJC) TB

23:45

Denver (DEN)

Boeing 737-800 (winglets) Passenger/BBJ2

Begins

2026-11-24

Valid to

2026-11-30

sun

mon

tue

wed

thu

fri

sat

Every Monday, Tuesday and Wednesday

Southwest Airlines

SWA3878

Duration

2h 25m

Distance

951 mi, 1530 km

Coreshare

Same day flight

Yes

Terminal

Departure: TB

Meals

Seats

165

Economy

165

12:35

Orlando (MCO)

15:20

Buffalo (BUF)

Boeing 737MAX 8 Passenger

Begins

2026-12-05

Valid to

2026-12-12

sun

mon

tue

wed

thu

fri

sat

Every Saturday

Southwest Airlines

SWA3878

Duration

2h 45m

Distance

1018 mi, 1638 km

Coreshare

Same day flight

Yes

Terminal

Meals

Seats

175

Economy

175

21:50

San Jose (SJC) TB

01:15

Denver (DEN)

Boeing 737MAX 8 Passenger

Begins

2026-12-06

Valid to

2026-12-13

sun

mon

tue

wed

thu

fri

sat

Fridays and Sundays

Southwest Airlines

SWA3878

Duration

2h 25m

Distance

951 mi, 1530 km

Coreshare

Same day flight

Terminal

Departure: TB

Meals

Seats

175

Economy

175

21:50

San Jose (SJC) TB

01:15

Denver (DEN)

Boeing 737MAX 8 Passenger

Operates only

2026-12-17

sun

mon

tue

wed

thu

fri

sat

Every Thursday

Southwest Airlines

SWA3878

Duration

2h 25m

Distance

951 mi, 1530 km

Coreshare

Same day flight

Terminal

Departure: TB

Meals

Seats

175

Economy

175

20:20

San Jose (SJC) TB

23:45

Denver (DEN)

Boeing 737-800 (winglets) Passenger/BBJ2

Begins

2026-12-18

Valid to

2026-12-23

sun

mon

tue

wed

thu

fri

sat

Every day of the week except Thursdays and Saturdays

Southwest Airlines

SWA3878

Duration

2h 25m

Distance

951 mi, 1530 km

Coreshare

Same day flight

Yes

Terminal

Departure: TB

Meals

Seats

165

Economy

165

20:40

San Jose (SJC) TB

00:05

Denver (DEN)

Boeing 737MAX 8 Passenger

Begins

2026-12-19

Valid to

2027-01-02

sun

mon

tue

wed

thu

fri

sat

Every Saturday

Southwest Airlines

SWA3878

Duration

2h 25m

Distance

951 mi, 1530 km

Coreshare

Same day flight

Terminal

Departure: TB

Meals

Seats

175

Economy

175

20:20

San Jose (SJC) TB

23:45

Denver (DEN)

Boeing 737-800 (winglets) Passenger/BBJ2

Begins

2026-12-27

Valid to

2027-01-03

sun

mon

tue

wed

thu

fri

sat

Every Monday, Tuesday, Wednesday and Sunday

Southwest Airlines

SWA3878

Duration

2h 25m

Distance

951 mi, 1530 km

Coreshare

Same day flight

Yes

Terminal

Departure: TB

Meals

Seats

165

Economy

165

21:50

San Jose (SJC) TB

01:15

Denver (DEN)

Boeing 737MAX 8 Passenger

Operates only

2027-01-04

sun

mon

tue

wed

thu

fri

sat

Every Monday

Southwest Airlines

SWA3878

Duration

2h 25m

Distance

951 mi, 1530 km

Coreshare

Same day flight

Terminal

Departure: TB

Meals

Seats

175

Economy

175

TERMINAL 4

According to schedule

Live tracker

PHX

Phoenix, US

left TERMINAL 4

Phoenix - PHX

MONDAY 01-JUN-2026

17:55 GMT-0700

SDF

Louisville, US

arrives TERMINAL N/A

Louisville - SDF

TUESDAY 02-JUN-2026

00:15 GMT-0400

General route info

Frequency:

Daily

Sun Mon Tue Wed Thu Fri Sat

Direct distance

441 miles, 709 km

Actual distance

442 miles, 711 km

0.23%

Flight time

1h 25m

Flights / Week

7 flights

Seats / Week

165 seats/flight

1155 seats/week

Upcoming scheduled flights in the coming 30 days

Date

Time

From

To

Aircraft

Status
Date:

Time:

From:

To:

Aircraft:

Status:

01 Jun 2026

17:55

Phoenix(PHX)

Louisville(SDF)

Boeing 737MAX 8 Passenger

WN3878
Date:

Time:

From:

To:

Aircraft:

Status:

02 Jun 2026

16:10

Phoenix(PHX)

Louisville(SDF)

Boeing 737-800 (winglets) Passenger/BBJ2

WN3878
Date:

Time:

From:

To:

Aircraft:

Status:

03 Jun 2026

16:10

Phoenix(PHX)

Louisville(SDF)

Boeing 737-800 (winglets) Passenger/BBJ2

WN3878
Date:

Time:

From:

To:

Aircraft:

Status:

04 Jun 2026

22:40

Houston(HOU)

Midland(MAF)

Boeing 737-800 (winglets) Passenger/BBJ2

WN3878
Date:

Time:

From:

To:

Aircraft:

Status:

07 Jun 2026

16:00

Santa Rosa(STS)

Burbank(BUR)

Boeing 737-700 Passenger (Scimitar Winglets)

WN3878
Date:

Time:

From:

To:

Aircraft:

Status:

14 Jun 2026

16:00

Santa Rosa(STS)

Burbank(BUR)

Boeing 737-700 Passenger (Scimitar Winglets)

WN3878
Date:

Time:

From:

To:

Aircraft:

Status:

21 Jun 2026

16:00

Santa Rosa(STS)

Burbank(BUR)

Boeing 737-700 Passenger (Scimitar Winglets)

WN3878
Date:

Time:

From:

To:

Aircraft:

Status:

28 Jun 2026

16:00

Santa Rosa(STS)

Burbank(BUR)

Boeing 737-700 Passenger (Scimitar Winglets)

WN3878