DL9977Delta Air Lines · SEA → ATL
live · 37m ago
Route confirmed Delta Air Lines

DL9977 SeattleSEA AtlantaATL

DL9977 by Delta Air Lines flies from Seattle (SEA) to Atlanta (ATL).

Right nowNext departure today Operates daily
09:30

scheduled from SEA

The route today

live boards
SEASeattleOn-time likelySEA delay board →
ATLAtlantaOn-time likelyATL delay board →
SEA→ATLevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
28%Chance of 15+ min delay
0.9%Chance of cancellation
-1 minTypical airport delay in this weather

Conditions at SEA and ATL 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 Seattle

Forecast

Fri 13 Nov, local date

High13°Clikely 12°C to 15°C
Low10°Clikely 8°C to 12°C
  • 85% 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 Atlanta

Forecast

Fri 13 Nov, local date

High12°Clikely 9°C to 15°C
Low6°Clikely 4°C to 7°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 Atlanta flights today

same route · Delta Air Lines
DL569departs 06:00
DL562departs 07:22
DL9966departs 08:30
DL554departs 11:45
DL542departs 13:40
DL560departs 15:55

If DL9977 is cancelled, these are the other Delta Air Lines nonstop flights from Seattle to Atlanta 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 DL9977 actually runs

Pro Flight Search has tracked every published board update for DL9977 across the SEA and ATL boards: schedule changes, gate pushes and actual clocks. Combined risk score: 33.0/100. Based on airport operations, weather, and cached board history at SEA and ATL.

The verdict above is that record speaking, so it reflects how DL9977 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
11-02SEA 09:30ATL

Board clocks recorded as SEA and ATL published them.

Planning around DL9977? 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: DL9977 Seattle to Atlanta on-time performance, measured from the SEA and ATL airport boards.

Canonical URL
https://proflightsearch.com/flight/DL9977
How we measure this →