WN4640 · SWA4640

SWA4640 over the last 30 days

As of 2026-10-26

SWA4640 is operated by Southwest Airlines on the route Baltimore/Washington International Thurgood Marshall Airport (BWI/KBWI) → William P. Hobby Airport (HOU/KHOU). It usually takes off around 22:21 UTC (18:21 local time, BWI). It usually lands around 00:57 UTC (19:57 local time, HOU). Most frequent aircraft type: BOEING 737-700 (B737).

Days with an observed flight (last 30 days)

11/30

Days of the week with an observed flight

Tue, Wed, Sun

Typical take-off

22:21 UTC · 18:21 local time (BWI)

Typical landing

00:57 UTC · 19:57 local time (HOU)

Typical time airborne

156 min

Median departure deviation from the usual time on this route

+4 min

Departures within 15 minutes of the usual time

75 %

Departures measured

65

Our measurement against the usual departure time of the route, from our own observations over the last 28 days; the figures cover all flights of this airline on the route.

Aircraft types on this flight (last 30 days)

• BOEING 737-700 (B737) — Number of flights: 6
• BOEING 737 MAX 8 (B38M) — Number of flights: 4
• BOEING 737-800 (B738) — Number of flights: 1

Aircraft in the last 7 days

• N8833L · BOEING 737 MAX 8 2026-10-26
• N438WN · BOEING 737-700 2026-10-21
• N7831B · BOEING 737-700 2026-10-20

Related flights on this route

• All flights KBWI – KHOU