DL473Delta Air Lines · SEA → BOS
live · 7m ago
Route confirmed Delta Air Lines

DL473 SeattleSEA · 23:10 BostonBOS · 07:35

DL473 by Delta Air Lines flies from Seattle (SEA) to Boston (BOS).

Right nowIn the air to Boston
07:32

estimated arrival at BOS · local time · ~93 min from now

LivePosition · updated 7m ago
SEA670 mi · ~93 min leftBOS
35,000 ftAltitudecruising
536 mphSpeed466 kt
106°Direction

Live position · flown path, last 3h 26m

The route today

live boards
SEASeattleHigh riskSEA delay board →
BOSBostonHigh riskBOS delay board →
SEA→BOSevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
50%Chance of 15+ min delay
9.7%Chance of cancellation
+32 minTypical airport delay in this weather

Driven mainly by BOS (Boston), currently flying IFR (instrument). 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 Seattle

Forecast

Sun 8 Nov, local date

High13°Clikely 12°C to 15°C
Low8°Clikely 6°C to 10°C
  • 80% 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 Boston

Forecast

Sun 8 Nov, local date

High15°Clikely 13°C to 17°C
Low9°Clikely 6°C to 11°C
  • 82% chance of rain
  • Gusts to 34 kt

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 Boston flights today

same route · Delta Air Lines
DL459departs 07:24
DL438departs 11:08
DL474departs 15:30
DL20departs 16:50

If DL473 is cancelled, these are the other Delta Air Lines nonstop flights from Seattle to Boston 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 DL473 actually runs

Pro Flight Search has tracked every published board update for DL473 across the SEA and BOS boards: schedule changes, gate pushes and actual clocks. Combined risk score: 75.5/100. Based on airport operations, weather, and cached board history at SEA and BOS.

The verdict above is that record speaking, so it reflects how DL473 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
11-06SEA 23:10BOS 07:35 07:16 (−19)

Board clocks recorded as SEA and BOS published them.

Planning around DL473? 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: DL473 Seattle to Boston on-time performance, measured from the SEA and BOS airport boards.

Canonical URL
https://proflightsearch.com/flight/DL473
How we measure this →