WN1553 · SWA1553

SWA1553 over the last 30 days

As of 2026-10-26

SWA1553 is operated by Southwest Airlines on the route Denver International Airport (DEN/KDEN) → Boston Logan International Airport (BOS/KBOS). It usually takes off around 17:39 UTC (11:39 local time, DEN). It usually lands around 20:58 UTC (16:58 local time, BOS). Most frequent aircraft type: BOEING 737-800 (B738).

Days with an observed flight (last 30 days)

22/30

Days of the week with an observed flight

Mon, Thu, Fri

Typical take-off

17:39 UTC · 11:39 local time (DEN)

Typical landing

20:58 UTC · 16:58 local time (BOS)

Typical time airborne

198 min

Median departure deviation from the usual time on this route

+7 min

Departures within 15 minutes of the usual time

60 %

Departures measured

40

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 737-800 (B738) — Number of flights: 11
• BOEING 737 MAX 8 (B38M) — Number of flights: 10
• BOEING 737-700 (B737) — Number of flights: 2

Aircraft in the last 7 days

• N8309C · BOEING 737-800 2026-10-26
• N8664J · BOEING 737-800 2026-10-25
• N8515X · BOEING 737-800 2026-10-24
• N8994Q · BOEING 737 MAX 8 2026-10-22

Related flights on this route

• All flights KDEN – KBOS