KE646Korean Air · SIN → ICN
live · 14m ago
Route confirmed Korean Air

KE646 SingaporeSIN · 01:25 SeoulICN · 08:50

KE646 by Korean Air flies from Singapore (SIN) to Seoul (ICN) for the Tue, Sep 8 departure.

Right nowLanded in Seoul · today
08:39

arrived at ICN · 11 min early

Typical gate push+21 minmedian posted departure
Typical arrival−2 minmedian over 3 operations
Wins back in air~23 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 3 operations · gate push → arrival
0+30+60+90 min
09-08
+10 gate · −11 arrival
09-07
+27 gate · +16 arrival
09-06
+21 gate · −2 arrival

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The route today

live boards
SINSingaporeOn-time likelySIN delay board →
ICNSeoulOn-time likelyICN delay board →
SIN→ICNevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Early read, sample still building
20%Chance of 15+ min delay
0.7%Chance of cancellation
-6 minAvg hub delay right now

Conditions at SIN and ICN are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days. This route's tracked sample is still thin — treat these as an early read, not a precise forecast.

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 Singapore to Seoul flights today

same route · Korean Air
KE648departs 07:30
KE644departs 22:00

If KE646 is cancelled, these are the other Korean Air nonstop flights from Singapore to Seoul on the same day, with scheduled departure times in SIN local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How KE646 actually runs

Pro Flight Search has tracked every published board update for KE646 across the SIN and ICN boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 3 completed legs so far: left noticeably late (~21 min) but landed right on schedule. Not enough to call it.

The verdict above is that record speaking, so it reflects how KE646 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
09-08SIN 01:25 01:35 (+10)ICN 08:50 08:39 (−11)
09-07SIN 01:25 01:52 (+27)ICN 08:50 09:06 (+16)
09-06SIN 01:25 01:46 (+21)ICN 08:50 08:48 (−2)

Board clocks recorded as SIN and ICN published them.

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 — KE646 Singapore to Seoul on-time performance, measured from the SIN and ICN airport boards.

Canonical URL
https://proflightsearch.com/flight/KE646
How we measure this →