Southwest Airlines

SWA2103 / WN2103

ICAO: SWA2103 IATA: WN2103

Click here to see all flights

Flight schedule

Select flight date

Departure

Arrive

Aircraft

Effective

Avalibility

20:40

Denver (DEN)

23:50

Saint Louis (STL) T2

Boeing 737MAX 8 Passenger

Begins

Now

Valid to

2026-06-01

sun

mon

tue

wed

thu

fri

sat

Every Monday, Thursday and Friday

Southwest Airlines

SWA2103

Duration

2h 10m

Distance

772 mi, 1242 km

Coreshare

Same day flight

Yes

Terminal

Arrival: T2

Meals

Seats

175

Economy

175

20:05

Denver (DEN)

23:10

Saint Louis (STL) T2

Boeing 737-700 Passenger (Scimitar Winglets)

Begins

Now

Valid to

2026-06-03

sun

mon

tue

wed

thu

fri

sat

Tuesdays and Wednesdays

Southwest Airlines

SWA2103

Duration

2h 05m

Distance

772 mi, 1242 km

Coreshare

Same day flight

Yes

Terminal

Arrival: T2

Meals

Seats

137

Economy

137

19:50

Dallas (DAL) T1

22:00

Chicago (MDW)

Boeing 737-800 (winglets) Passenger/BBJ2

Begins

2026-06-09

Valid to

2026-07-29

sun

mon

tue

wed

thu

fri

sat

Tuesdays and Wednesdays

Southwest Airlines

SWA2103

Duration

2h 10m

Distance

798 mi, 1284 km

Coreshare

Same day flight

Yes

Terminal

Departure: T1

Meals

Seats

165

Economy

165

11:20

Sacramento (SMF) TB

13:15

Phoenix (PHX) T4

Boeing 737-800 (winglets) Passenger/BBJ2

Operates only

2026-07-04

sun

mon

tue

wed

thu

fri

sat

Every Saturday

Southwest Airlines

SWA2103

Duration

1h 55m

Distance

650 mi, 1046 km

Coreshare

Same day flight

Yes

Terminal

Departure: TB Arrival: T4

Meals

Seats

165

Economy

165

11:35

Kailua-Kona (KOA)

12:30

Honolulu (HNL) T2

Boeing 737MAX 8 Passenger

Begins

2026-08-04

Valid to

2026-09-30

sun

mon

tue

wed

thu

fri

sat

Every weekday

Southwest Airlines

SWA2103

Duration

0h 55m

Distance

164 mi, 264 km

Coreshare

Same day flight

Yes

Terminal

Arrival: T2

Meals

Seats

175

Economy

175

15:35

Long Beach (LGB)

16:55

Oakland (OAK) T2

Boeing 737-800 (winglets) Passenger/BBJ2

Begins

2026-10-03

Valid to

2026-10-31

sun

mon

tue

wed

thu

fri

sat

Every Saturday

Southwest Airlines

SWA2103

Duration

1h 20m

Distance

355 mi, 571 km

Coreshare

Same day flight

Yes

Terminal

Arrival: T2

Meals

Seats

165

Economy

165

15:25

Houston (HOU)

17:50

Chicago (MDW)

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

SWA2103

Duration

2h 25m

Distance

943 mi, 1517 km

Coreshare

Same day flight

Yes

Terminal

Meals

Seats

137

Economy

137

14:20

Houston (HOU)

15:35

Las Vegas (LAS) T1

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

SWA2103

Duration

3h 15m

Distance

1240 mi, 1995 km

Coreshare

Same day flight

Yes

Terminal

Arrival: T1

Meals

Seats

175

Economy

175

15:15

Houston (HOU)

16:25

Las Vegas (LAS) T1

Boeing 737MAX 8 Passenger

Begins

2026-11-03

Valid to

2026-11-11

sun

mon

tue

wed

thu

fri

sat

Tuesdays and Wednesdays

Southwest Airlines

SWA2103

Duration

3h 10m

Distance

1240 mi, 1995 km

Coreshare

Same day flight

Yes

Terminal

Arrival: T1

Meals

Seats

175

Economy

175

13:40

Houston (HOU)

14:55

Las Vegas (LAS) T1

Boeing 737MAX 8 Passenger

Begins

2026-11-07

Valid to

2026-11-14

sun

mon

tue

wed

thu

fri

sat

Every Saturday

Southwest Airlines

SWA2103

Duration

3h 15m

Distance

1240 mi, 1995 km

Coreshare

Same day flight

Yes

Terminal

Arrival: T1

Meals

Seats

175

Economy

175

15:15

Houston (HOU)

16:25

Las Vegas (LAS) T1

Boeing 737MAX 8 Passenger

Begins

2026-11-16

Valid to

2026-11-19

sun

mon

tue

wed

thu

fri

sat

Every Monday, Tuesday, Wednesday and Thursday

Southwest Airlines

SWA2103

Duration

3h 10m

Distance

1240 mi, 1995 km

Coreshare

Same day flight

Yes

Terminal

Arrival: T1

Meals

Seats

175

Economy

175

14:20

Houston (HOU)

15:35

Las Vegas (LAS) T1

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

SWA2103

Duration

3h 15m

Distance

1240 mi, 1995 km

Coreshare

Same day flight

Yes

Terminal

Arrival: T1

Meals

Seats

175

Economy

175

14:40

San Diego (SAN) T1

19:45

Houston (HOU)

Boeing 737-800 (winglets) Passenger/BBJ2

Begins

2026-11-21

Valid to

2026-11-28

sun

mon

tue

wed

thu

fri

sat

Every Saturday

Southwest Airlines

SWA2103

Duration

3h 05m

Distance

1317 mi, 2119 km

Coreshare

Same day flight

Yes

Terminal

Departure: T1

Meals

Seats

165

Economy

165

15:45

Houston (HOU)

16:55

Las Vegas (LAS) T1

Boeing 737MAX 8 Passenger

Begins

2026-11-24

Valid to

2026-11-30

sun

mon

tue

wed

thu

fri

sat

Every Monday, Tuesday and Wednesday

Southwest Airlines

SWA2103

Duration

3h 10m

Distance

1240 mi, 1995 km

Coreshare

Same day flight

Yes

Terminal

Arrival: T1

Meals

Seats

175

Economy

175

15:20

Houston (HOU)

16:30

Las Vegas (LAS) T1

Boeing 737-800 (winglets) Passenger/BBJ2

Operates only

2026-11-26

sun

mon

tue

wed

thu

fri

sat

Every Thursday

Southwest Airlines

SWA2103

Duration

3h 10m

Distance

1240 mi, 1995 km

Coreshare

Same day flight

Yes

Terminal

Arrival: T1

Meals

Seats

165

Economy

165

06:00

Houston (HOU)

08:55

Atlanta (ATL) TN

Boeing 737-800 (winglets) Passenger/BBJ2

Operates only

2026-11-29

sun

mon

tue

wed

thu

fri

sat

Every Sunday

Southwest Airlines

SWA2103

Duration

1h 55m

Distance

698 mi, 1123 km

Coreshare

Same day flight

Yes

Terminal

Arrival: TN

Meals

Seats

165

Economy

165

15:15

Houston (HOU)

16:25

Las Vegas (LAS) T1

Boeing 737MAX 8 Passenger

Begins

2026-12-01

Valid to

2026-12-10

sun

mon

tue

wed

thu

fri

sat

Every day of the week except Saturdays and Sundays

Southwest Airlines

SWA2103

Duration

3h 10m

Distance

1240 mi, 1995 km

Coreshare

Same day flight

Yes

Terminal

Arrival: T1

Meals

Seats

175

Economy

175

13:40

Houston (HOU)

14:55

Las Vegas (LAS) T1

Boeing 737MAX 8 Passenger

Begins

2026-12-05

Valid to

2026-12-12

sun

mon

tue

wed

thu

fri

sat

Every Saturday

Southwest Airlines

SWA2103

Duration

3h 15m

Distance

1240 mi, 1995 km

Coreshare

Same day flight

Yes

Terminal

Arrival: T1

Meals

Seats

175

Economy

175

14:20

Houston (HOU)

15:35

Las Vegas (LAS) T1

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

SWA2103

Duration

3h 15m

Distance

1240 mi, 1995 km

Coreshare

Same day flight

Yes

Terminal

Arrival: T1

Meals

Seats

175

Economy

175

15:15

Houston (HOU)

16:25

Las Vegas (LAS) T1

Boeing 737MAX 8 Passenger

Begins

2026-12-14

Valid to

2026-12-16

sun

mon

tue

wed

thu

fri

sat

Every Monday, Tuesday and Wednesday

Southwest Airlines

SWA2103

Duration

3h 10m

Distance

1240 mi, 1995 km

Coreshare

Same day flight

Yes

Terminal

Arrival: T1

Meals

Seats

175

Economy

175

14:20

Houston (HOU)

15:35

Las Vegas (LAS) T1

Boeing 737MAX 8 Passenger

Operates only

2026-12-17

sun

mon

tue

wed

thu

fri

sat

Every Thursday

Southwest Airlines

SWA2103

Duration

3h 15m

Distance

1240 mi, 1995 km

Coreshare

Same day flight

Yes

Terminal

Arrival: T1

Meals

Seats

175

Economy

175

15:45

Houston (HOU)

16:55

Las Vegas (LAS) T1

Boeing 737MAX 8 Passenger

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

SWA2103

Duration

3h 10m

Distance

1240 mi, 1995 km

Coreshare

Same day flight

Yes

Terminal

Arrival: T1

Meals

Seats

175

Economy

175

14:40

San Diego (SAN) T1

19:45

Houston (HOU)

Boeing 737-800 (winglets) Passenger/BBJ2

Begins

2026-12-19

Valid to

2027-01-02

sun

mon

tue

wed

thu

fri

sat

Every Saturday

Southwest Airlines

SWA2103

Duration

3h 05m

Distance

1317 mi, 2119 km

Coreshare

Same day flight

Yes

Terminal

Departure: T1

Meals

Seats

165

Economy

165

15:15

Houston (HOU)

16:25

Las Vegas (LAS) T1

Boeing 737MAX 8 Passenger

Begins

2026-12-24

Valid to

2027-01-01

sun

mon

tue

wed

thu

fri

sat

Thursdays and Fridays

Southwest Airlines

SWA2103

Duration

3h 10m

Distance

1240 mi, 1995 km

Coreshare

Same day flight

Yes

Terminal

Arrival: T1

Meals

Seats

175

Economy

175

15:45

Houston (HOU)

16:55

Las Vegas (LAS) T1

Boeing 737MAX 8 Passenger

Begins

2026-12-27

Valid to

2027-01-03

sun

mon

tue

wed

thu

fri

sat

Every Monday, Tuesday, Wednesday and Sunday

Southwest Airlines

SWA2103

Duration

3h 10m

Distance

1240 mi, 1995 km

Coreshare

Same day flight

Yes

Terminal

Arrival: T1

Meals

Seats

175

Economy

175

14:20

Houston (HOU)

15:35

Las Vegas (LAS) T1

Boeing 737MAX 8 Passenger

Operates only

2027-01-04

sun

mon

tue

wed

thu

fri

sat

Every Monday

Southwest Airlines

SWA2103

Duration

3h 15m

Distance

1240 mi, 1995 km

Coreshare

Same day flight

Yes

Terminal

Arrival: T1

Meals

Seats

175

Economy

175

15:15

Houston (HOU)

16:25

Las Vegas (LAS) T1

Boeing 737MAX 8 Passenger

Operates only

2027-01-05

sun

mon

tue

wed

thu

fri

sat

Every Tuesday

Southwest Airlines

SWA2103

Duration

3h 10m

Distance

1240 mi, 1995 km

Coreshare

Same day flight

Yes

Terminal

Arrival: T1

Meals

Seats

175

Economy

175

According to schedule

Live tracker

DEN

Denver, US

left TERMINAL N/A

Denver - DEN

SUNDAY 31-MAY-2026

20:40 GMT-0600

STL

Saint Louis, US

arrives TERMINAL 2

Saint Louis - STL

SUNDAY 31-MAY-2026

23:50 GMT-0500

General route info

Frequency:

Daily

Sun Mon Tue Wed Thu Fri Sat

Direct distance

794 miles, 1278 km

Actual distance

798 miles, 1284 km

0.5%

Flight time

2h 10m

Flights / Week

43 flights

Seats / Week

165 seats/flight

7095 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

20:40

Denver(DEN)

Saint Louis(STL)

Boeing 737MAX 8 Passenger

WN2103
Date:

Time:

From:

To:

Aircraft:

Status:

02 Jun 2026

20:05

Denver(DEN)

Saint Louis(STL)

Boeing 737-700 Passenger (Scimitar Winglets)

WN2103
Date:

Time:

From:

To:

Aircraft:

Status:

03 Jun 2026

20:05

Denver(DEN)

Saint Louis(STL)

Boeing 737-700 Passenger (Scimitar Winglets)

WN2103
Date:

Time:

From:

To:

Aircraft:

Status:

09 Jun 2026

19:50

Dallas(DAL)

Chicago(MDW)

Boeing 737-800 (winglets) Passenger/BBJ2

WN2103
Date:

Time:

From:

To:

Aircraft:

Status:

10 Jun 2026

19:50

Dallas(DAL)

Chicago(MDW)

Boeing 737-800 (winglets) Passenger/BBJ2

WN2103
Date:

Time:

From:

To:

Aircraft:

Status:

16 Jun 2026

19:50

Dallas(DAL)

Chicago(MDW)

Boeing 737-800 (winglets) Passenger/BBJ2

WN2103
Date:

Time:

From:

To:

Aircraft:

Status:

17 Jun 2026

19:50

Dallas(DAL)

Chicago(MDW)

Boeing 737-800 (winglets) Passenger/BBJ2

WN2103
Date:

Time:

From:

To:

Aircraft:

Status:

23 Jun 2026

19:50

Dallas(DAL)

Chicago(MDW)

Boeing 737-800 (winglets) Passenger/BBJ2

WN2103
Date:

Time:

From:

To:

Aircraft:

Status:

24 Jun 2026

19:50

Dallas(DAL)

Chicago(MDW)

Boeing 737-800 (winglets) Passenger/BBJ2

WN2103
Date:

Time:

From:

To:

Aircraft:

Status:

30 Jun 2026

19:50

Dallas(DAL)

Chicago(MDW)

Boeing 737-800 (winglets) Passenger/BBJ2

WN2103