DL438Delta Air Lines · SEA → DCA
live · 6m ago
Route confirmed Delta Air Lines

DL438 SeattleSEA · 11:15 WashingtonDCA · 19:43

DL438 by Delta Air Lines flies from Seattle (SEA) to Washington (DCA) for the Tue, Aug 18 departure.

Same number through SEA → BOS → DCA

Right nowEstimated · gate A8
11:30

departs SEA · 15 min late

The route today

live boards
SEASeattleHigh riskSEA delay board →
DCAWashingtonOn-time likelyDCA delay board →
SEA→DCAevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
51%Chance of 15+ min delay
2.9%Chance of cancellation
+25 minAvg hub delay right now

Driven mainly by DCA (Washington), currently flying MVFR (marginal visual). 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 Seattle to Washington flights today

same route · Delta Air Lines
DL459departs 07:38
DL474departs 15:59
DL473departs 23:13

If DL438 is cancelled, these are the other Delta Air Lines nonstop flights from Seattle to Washington on the same day, with scheduled departure times in SEA local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How DL438 actually runs

Pro Flight Search has tracked every published board update for DL438 across the SEA and DCA boards: schedule changes, gate pushes and actual clocks. Usually lands ~22 min late. Based on 6 confirmed landings · 3/6 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how DL438 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
08-17SEA 11:15DCA
08-16SEA 11:15DCA
08-15SEA 13:25DCA
08-14SEA 11:15DCA
08-13SEA 11:15DCA

Aircraft

Recent tails: N543DE, N513DA, N581DA, N544DN.

Board clocks recorded as SEA and DCA published them.

Planning around DL438? 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 — DL438 Seattle to Washington on-time performance, measured from the SEA and DCA airport boards.

Canonical URL
https://proflightsearch.com/flight/DL438
How we measure this →