WN4589Southwest Airlines · BWI → BOS
live · 5m ago
Route confirmed Southwest Airlines

WN4589 BaltimoreBWI · 14:30 BostonBOS · 16:05

WN4589 by Southwest Airlines flies from Baltimore (BWI) to Boston (BOS).

Right nowNext departure tomorrow Operates daily
14:30

scheduled from BWI

Typical gate push+22 minmedian posted departure
Typical arrival−3 minmedian over 4 operations
Wins back in air~25 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 4 operations · gate push → arrival
0+30+60+90 min
10-30
+13 gate · −10 arrival
10-29
+22 gate · −1 arrival
10-26
+38 gate · −5 arrival
10-23
+1 arrival

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The route today

live boards
BWIBaltimoreModerate riskBWI delay board →
BOSBostonOn-time likelyBOS delay board →
BWI→BOSevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
39%Chance of 15+ min delay
2.3%Chance of cancellation
+5 minTypical airport delay in this weather

Conditions at BWI and BOS are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records under conditions like today's, over the last 90 days.

Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →

Tomorrow at Baltimore

Forecast

Wed 4 Nov, local date

High23°Clikely 21°C to 24°C
Low10°Clikely 8°C to 11°C
  • 37% chance of fog

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

Tomorrow at Boston

Forecast

Wed 4 Nov, local date

High23°Clikely 22°C to 25°C
Low14°Clikely 12°C to 15°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other Baltimore to Boston flights today

same route · Southwest Airlines
WN4725departs 06:30
WN4970departs 06:35
WN571departs 07:00
WN2067departs 08:05
WN4382departs 08:20
WN1360departs 09:05

If WN4589 is cancelled, these are the other Southwest Airlines nonstop flights from Baltimore to Boston on the same day, with scheduled departure times in BWI local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How WN4589 actually runs

Pro Flight Search has tracked every published board update for WN4589 across the BWI and BOS boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 3 completed legs so far: left noticeably late (~22 min) but landed right on schedule. Not enough to call it.

The verdict above is that record speaking, so it reflects how WN4589 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
10-30BWI 14:30 14:43 (+13)BOS 16:05 15:55 (−10)
10-29BWI 14:30 14:52 (+22)BOS 16:05 16:04 (−1)
10-26BWI 14:30 15:08 (+38)BOS 16:05 16:00 (−5)
10-23BWI BOS 16:05 16:06 (+1)

Aircraft

Recent tails: N8940Q, N8985Q, N9035W.

Board clocks recorded as BWI and BOS published them.

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search: WN4589 Baltimore to Boston on-time performance, measured from the BWI and BOS airport boards.

Canonical URL
https://proflightsearch.com/flight/WN4589
How we measure this →