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WN3457

MDW → BOS · Boeing 737-800 · Southwest Airlines

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For travellers

Departure · Chicago (MDW)

Gate B7
Scheduled 05:30 · Departed 05:29
Board status: Active
Airborne since 05:42 (ADS-B)

Arrival · Boston (BOS)

Terminal B · Gate B33 · Baggage belt 8
Scheduled 08:55 · Landed 08:33 · early
Board status: Arrived
In the air, ~34m to go (100% of the route flown)

Board data from bos, mdw, updated 1 min ago; times local to each airport.

Flight

Status
In progress
Departure
Chicago Midway International Airport (MDW) — Chicago, United States
Scheduled departure
2026-10-02 10:30 UTC
Departed
2026-10-02 10:42 UTC
Arrival
General Edward Lawrence Logan International Airport (BOS) — Boston, United States (scheduled)
Scheduled arrival
2026-10-02 12:55 UTC
Estimated arrival
2026-10-02 12:28 UTC
Progress
100% · ~34m remaining
Distance flown
1465 km
Straight-line distance
1382 km

Aircraft

Registration
N8571Z
Type
Boeing 737-800
Seats
175 total (175 Economy)
CO2 (EMEP est., total)
37.1 t (212 kg/pax Economy)

Altitude & speed

Max altitude
37,025 ft
Max ground speed
561 kt
Tracked
1h 46m · 1,465 km
Note
still in progress - the track so far
Altitude (ft, max 37,025)
019,99439,9870m30m1h 0m1h 30m
Ground speed (kt, max 561)
03036060m30m1h 0m1h 30m
Altitude (ft, max 37,025)
019,99439,9870m1h 0m
Ground speed (kt, max 561)
03036060m1h 0m

From the ADS-B positions we received; time since the first fix. A dashed stretch is a gap in reception, bridged by a straight line.

Route map

Airline

Southwest Airlines (SWA)

Latest flights

DepartedFlightRouteRegAircraftStatusDistance
2026-10-02 10:42 UTC SWA3457 MDW → BOS
Chicago → Boston
 N8571Z Boeing 737-800 In progress ~1382 km est.
2026-10-01 10:47 UTC SWA3457 MDW → BOS
Chicago → Boston
 N8545V Boeing 737-800 Completed 1539 km

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