WN3657Southwest Airlines · SLC → BWI
live · 33m ago
Route confirmed Southwest Airlines

WN3657 Salt Lake CitySLC · 12:45 BaltimoreBWI · 18:50

WN3657 by Southwest Airlines flies from Salt Lake City (SLC) to Baltimore (BWI).

Right nowNext departure today Operates daily
11:10

scheduled from SLC

⚖ WN3657 typically leaves +23 and lands −6. The air wins minutes back.

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
09-13
+19 gate · −13 arrival
09-11
+69 gate · +34 arrival
09-10
+26 gate · −6 arrival
09-09
+10 gate · −32 arrival
09-08
+20 gate · −6 arrival
09-07
+17 gate · −10 arrival
09-04
+39 gate · +13 arrival

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

The last 30 days

arrival outcome per operation

median arrival −6 min · 0 cancelled · 12 operations tracked

The route today

live boards
SLCSalt Lake CityModerate riskSLC delay board →
BWIBaltimoreOn-time likelyBWI delay board →
SLC→BWIevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
31%Chance of 15+ min delay
1.4%Chance of cancellation
+5 minAvg hub delay right now

Conditions at SLC and BWI are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, 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 →

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 Salt Lake City to Baltimore flights today

same route · Southwest Airlines
WN5057departs 12:40

If WN3657 is cancelled, this is the other Southwest Airlines nonstop flight from Salt Lake City to Baltimore on the same day, with scheduled departure times in SLC local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How WN3657 actually runs

Pro Flight Search has tracked every published board update for WN3657 across the SLC and BWI boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 12 confirmed landings · 11/12 within 15 min of schedule. Pushes back late but makes up time in the air.

The verdict above is that record speaking, so it reflects how WN3657 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
09-13SLC 12:45 13:04 (+19)BWI 18:50 18:37 (−13)
09-11SLC 11:30 12:39 (+69)BWI 17:35 18:09 (+34)
09-10SLC 11:30 11:56 (+26)BWI 17:35 17:29 (−6)
09-09SLC 11:10 11:20 (+10)BWI 17:15 16:43 (−32)
09-08SLC 11:10 11:30 (+20)BWI 17:15 17:09 (−6)
09-07SLC 11:30 11:47 (+17)BWI 17:35 17:25 (−10)
09-04SLC 11:30 12:09 (+39)BWI 17:35 17:48 (+13)
09-03SLC 11:30 12:04 (+34)BWI 17:35 17:41 (+6)
09-02SLC 11:10 11:33 (+23)BWI 17:15 17:03 (−12)
09-01SLC 11:10 11:32 (+22)BWI 17:15 17:08 (−7)
08-31SLC 11:30 11:54 (+24)BWI 17:35 17:32 (−3)
08-30SLC 12:45 13:04 (+19)BWI 18:50 18:37 (−13)

Aircraft

Recent tails: N8530W, N8972S, N8677A, N8770Q.

Board clocks recorded as SLC and BWI 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 — WN3657 Salt Lake City to Baltimore on-time performance, measured from the SLC and BWI airport boards.

Canonical URL
https://proflightsearch.com/flight/WN3657
How we measure this →