WN4233Southwest Airlines · BOS → MDW
live · 24m ago
Route confirmed Southwest Airlines

WN4233 BostonBOS · 16:20 ChicagoMDW · 17:55

WN4233 by Southwest Airlines flies from Boston (BOS) to Chicago (MDW).

Right nowNext departure today Operates daily
16:20

scheduled from BOS

Typical gate push+0 minmedian posted departure
Typical arrival−3 minmedian over 4 operations
Wins back in air~3 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
11-04
+0 gate · −15 arrival
10-30
+61 gate · +44 arrival
10-29
+0 gate · +8 arrival
10-28
+0 gate · −15 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
BOSBostonOn-time likelyBOS delay board →
MDWChicagoOn-time likelyMDW delay board →
BOS→MDWevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
41%Chance of 15+ min delay
3.6%Chance of cancellation
+9 minTypical airport delay in this weather

Driven mainly by MDW (Chicago), currently flying MVFR (marginal visual). 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 Boston

Forecast

Thu 5 Nov, local date

High23°Clikely 21°C to 25°C
Low16°Clikely 13°C to 17°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.

Tomorrow at Chicago

Forecast

Thu 5 Nov, local date

High12°Clikely 11°C to 14°C
Low10°Clikely 8°C to 11°C
  • 72% chance of rain

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 Boston to Chicago flights today

same route · Southwest Airlines
WN805departs 05:50
WN1955departs 07:05
WN2185departs 07:05
WN493departs 07:40
WN2046departs 10:55
WN3538departs 11:55

If WN4233 is cancelled, these are the other Southwest Airlines nonstop flights from Boston to Chicago on the same day, with scheduled departure times in BOS 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 WN4233 actually runs

Pro Flight Search has tracked every published board update for WN4233 across the BOS and MDW boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 4 confirmed landings · 3/4 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how WN4233 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocks

Board log

scheduled → actual, per operation
11-04BOS 16:20 (+0)MDW 17:55 17:40 (−15)
10-30BOS 18:35 19:36 (+61)MDW 20:10 20:54 (+44)
10-29BOS 18:35 (+0)MDW 20:10 20:18 (+8)
10-28BOS 16:20 (+0)MDW 17:55 17:40 (−15)

Board clocks recorded as BOS and MDW published them.

Planning around WN4233? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

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: WN4233 Boston to Chicago on-time performance, measured from the BOS and MDW airport boards.

Canonical URL
https://proflightsearch.com/flight/WN4233
How we measure this →