WN1841Southwest Airlines · SEA → DEN
live · 9m ago
Route confirmed Southwest Airlines

WN1841 SeattleSEA · 16:15 DenverDEN · 20:00

WN1841 by Southwest Airlines flies from Seattle (SEA) to Denver (DEN).

Right nowNext departure today Operates daily
19:35

scheduled from SEA

The route today

live boards
SEASeattleOn-time likelySEA delay board →
DENDenverOn-time likelyDEN delay board →
SEA→DENevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
34%Chance of 15+ min delay
1.3%Chance of cancellation
+6 minTypical airport delay in this weather

Conditions at SEA and DEN 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 SEA

Forecast

Sat 14 Nov, local date

High14°Clikely 13°C to 15°C
Low9°Clikely 8°C to 11°C
  • 90% 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.

Tomorrow at DEN

Forecast

Sat 14 Nov, local date

High10°Clikely 7°C to 12°C
Low2°Clikely 0°C to 4°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 Seattle to Denver flights today

same route · Southwest Airlines
WN3753departs 05:50
WN4956departs 06:10
WN2150departs 09:10
WN746departs 13:05

If WN1841 is cancelled, these are the other Southwest Airlines nonstop flights from Seattle to Denver on the same day, with scheduled departure times in SEA 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 WN1841 actually runs

Pro Flight Search has tracked every published board update for WN1841 across the SEA and DEN boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 2 completed legs so far: landed -1 min. Not enough to call it.

The verdict above is that record speaking, so it reflects how WN1841 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
11-13SEA 16:15DEN 20:00 19:59 (−1)
10-30SEA 16:15DEN 20:00 19:59 (−1)

Aircraft

Recent tails: N903WN.

Board clocks recorded as SEA and DEN published them.

Planning around WN1841? 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: WN1841 Seattle to Denver on-time performance, measured from the SEA and DEN airport boards.

Canonical URL
https://proflightsearch.com/flight/WN1841
How we measure this →