ET501Ethiopian Airlines · IAD → ADD
updated 4h ago
Route confirmed Ethiopian Airlines

ET501 WashingtonIAD · 10:00 Addis AbabaADD · 07:15

ET501 by Ethiopian Airlines flies from Washington (IAD) to Addis Ababa (ADD) for the Sat, Nov 7 departure.

Right nowExpected · today · as of 10:18
10:00

departs IAD · on schedule

⚖ ET501 typically leaves +36 and lands −4. The air wins minutes back.
Typical gate push+36 minmedian posted departure
Typical arrival−4 minmedian over 13 operations
Wins back in air~40 minmedian gate push vs arrival · how planes make up time → Cancellation0 in 13tracked operations · cancellation odds calculator →

Where the minutes go

last 7 operations · gate push → arrival
0+31+63+94 min
11-06
+94 gate · +58 arrival
11-05
+31 gate · −1 arrival
11-04
+23 gate · +4 arrival
11-03
+27 gate · −5 arrival
11-02
+42 gate · −4 arrival
11-01
+25 gate · −6 arrival
10-31
+82 gate · +36 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 −4 min · 0 cancelled · 13 operations tracked

The route today

live boards
IADWashingtonOn-time likelyIAD delay board →
ADDAddis AbabaOn-time likelyADD delay board →
IAD→ADDevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
37%Chance of 15+ min delay
2.3%Chance of cancellation
+3 minTypical airport delay in this weather

Conditions at IAD and ADD 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 Washington

Forecast

Sun 8 Nov, local date

High16°Clikely 15°C to 18°C
Low6°Clikely 4°C to 8°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.

Tomorrow at Addis Ababa

Forecast

Sun 8 Nov, local date

High24°Clikely 23°C to 25°C
Low13°Clikely 12°C to 14°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.

How ET501 actually runs

Pro Flight Search has tracked every published board update for ET501 across the IAD and ADD boards: schedule changes, gate pushes and actual clocks. Usually departs ~23 min late. Based on 13 confirmed departures · 2/13 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how ET501 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
11-06IAD 10:00 11:34 (+94)ADD 07:15 08:13 (+58)
11-05IAD 10:00 10:31 (+31)ADD 07:15 07:14 (−1)
11-04IAD 10:00 10:23 (+23)ADD 07:15 07:19 (+4)
11-03IAD 10:00 10:27 (+27)ADD 07:15 07:10 (−5)
11-02IAD 10:00 10:42 (+42)ADD 07:15 07:11 (−4)
11-01IAD 10:00 10:25 (+25)ADD 07:15 07:09 (−6)
10-31IAD 11:00 12:22 (+82)ADD 07:15 07:51 (+36)
10-30IAD 11:00 11:42 (+42)ADD 07:15 07:23 (+8)
10-29IAD 11:00 11:22 (+22)ADD 07:15 07:12 (−3)
10-28IAD 11:00 11:36 (+36)ADD 07:15 06:59 (−16)
10-27IAD 11:00 11:12 (+12)ADD 07:15 07:04 (−11)
10-26IAD 11:00 11:38 (+38)ADD 07:15 06:57 (−18)
10-25IAD 11:00 11:40 (+40)ADD 07:10 06:50 (−20)

Aircraft

Recent tails: ET-BAW, ET-AYM, ET-AZI, ET-BAY.

Board clocks recorded as IAD and ADD published them.

Planning around ET501? 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: ET501 Washington to Addis Ababa on-time performance, measured from the IAD and ADD airport boards.

Canonical URL
https://proflightsearch.com/flight/ET501
How we measure this →