KL1255KLM · AMS → HEL
live · 24m ago
Route confirmed KLM

KL1255 AmsterdamAMS · 20:55 HelsinkiHEL · 00:20

KL1255 by KLM flies from Amsterdam (AMS) to Helsinki (HEL).

Right nowNext departure today Operates daily
20:55

scheduled from AMS

⚖ KL1255 typically leaves +27 and lands +8. The air wins minutes back.
Typical gate push+27 minmedian posted departure
Typical arrival+8 minmedian over 16 operations
Wins back in air~19 minmedian gate push vs arrival · how planes make up time → Cancellation0 in 16tracked operations · cancellation odds calculator →

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
11-09
+41 gate · +19 arrival
11-08
+46 gate · +20 arrival
11-07
+9 gate · −13 arrival
11-06
+17 gate · −4 arrival
11-05
+23 gate · +6 arrival
11-04
+21 gate · +9 arrival
11-03
+32 gate · +19 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 +8 min · 0 cancelled · 16 operations tracked

The route today

live boards
AMSAmsterdamOn-time likelyAMS delay board →
HELHelsinkiOn-time likelyHEL delay board →
AMS→HELevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
27%Chance of 15+ min delay
2.7%Chance of cancellation
-1 minTypical airport delay in this weather

Driven mainly by HEL (Helsinki), currently flying MVFR (marginal visual). 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 Amsterdam

Forecast

Tue 10 Nov, local date

High7°Clikely 6°C to 9°C
Low1°Clikely −1°C to 3°C
  • 37% chance of fog

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 Helsinki

Forecast

Tue 10 Nov, local date

High6°Clikely 5°C to 7°C
Low4°Clikely 1°C to 5°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 Amsterdam to Helsinki flights today

same route · KLM
KL1251departs 09:45
KL1253departs 14:05

If KL1255 is cancelled, these are the other KLM nonstop flights from Amsterdam to Helsinki on the same day, with scheduled departure times in AMS 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 KL1255 actually runs

Pro Flight Search has tracked every published board update for KL1255 across the AMS and HEL boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 14 confirmed landings · 9/14 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how KL1255 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
11-09AMS 20:55 21:36 (+41)HEL 00:20 00:39 (+19)
11-08AMS 20:55 21:41 (+46)HEL 00:20 00:40 (+20)
11-07AMS 20:55 21:04 (+9)HEL 00:20 00:07 (−13)
11-06AMS 20:55 21:12 (+17)HEL 00:20 00:16 (−4)
11-05AMS 20:55 21:18 (+23)HEL 00:20 00:26 (+6)
11-04AMS 20:55 21:16 (+21)HEL 00:20 00:29 (+9)
11-03AMS 20:55 21:27 (+32)HEL 00:20 00:39 (+19)
11-02AMS 20:55 21:36 (+41)HEL 00:20 00:39 (+19)
11-01AMS 20:55 21:23 (+28)HEL 00:20 00:17 (−3)
10-31AMS 20:55 21:17 (+22)HEL 00:20 00:22 (+2)
10-30AMS 20:55 21:58 (+63)HEL 00:20 01:14 (+54)
10-29AMS 20:55 21:22 (+27)HEL 00:20 00:24 (+4)
10-28AMS 20:55 21:10 (+15)HEL 00:20 00:07 (−13)
10-27AMS 20:55 21:05 (+10)HEL 00:20 23:56 (−24)
10-26AMS 20:55 21:45 (+50)HEL 00:20 00:41 (+21)
10-25AMS HEL 00:20 01:29 (+69)

Aircraft

Recent tails: PHAXD, PH-AXD, PHAXP, PH-AXP.

Board clocks recorded as AMS and HEL published them.

Planning around KL1255? 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: KL1255 Amsterdam to Helsinki on-time performance, measured from the AMS and HEL airport boards.

Canonical URL
https://proflightsearch.com/flight/KL1255
How we measure this →