BA855British Airways · PRG → LHR
live · 5m ago
Route confirmed British Airways

BA855 PraguePRG · 18:15 LondonLHR · 19:25

BA855 by British Airways flies from Prague (PRG) to London (LHR) for the Sun, Oct 18 departure.

Right nowEn route to London · off blocks 18:16 · 1 min late
19:04

estimated arrival at LHR · local time · ~31 min from now

En routeBA855 · position estimated
PRGPragueLHRLondon
Estimated from the boardsarr 19:04

Board estimate · gate and arrival times. Off blocks 18:16 · typical taxi-out at PRG ≈ 7 min.

Typical gate push+0 minmedian posted departure
Typical arrival−20 minmedian over 3 operations
Wins back in air~20 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
10-18
+1 gate · −21 arrival
10-17
−4 gate · −20 arrival
10-16
+0 gate · −17 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
PRGPragueOn-time likelyPRG delay board →
LHRLondonOn-time likelyLHR delay board →
PRG→LHRevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
30%Chance of 15+ min delay
2.6%Chance of cancellation
+2 minAvg hub delay right now

Driven mainly by PRG (Prague), currently flying MVFR (marginal visual). For this route and airline, 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 →

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 Prague to London flights today

same route · British Airways
BA859departs 06:30
BA851departs 10:10
BA853departs 12:55
BA861departs 16:45
BA857departs 20:55

If BA855 is cancelled, these are the other British Airways nonstop flights from Prague to London on the same day, with scheduled departure times in PRG local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How BA855 actually runs

Pro Flight Search has tracked every published board update for BA855 across the PRG and LHR boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: left right on schedule but landed about 17 min early. Not enough to call it.

The verdict above is that record speaking, so it reflects how BA855 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
10-18PRG 18:15 18:16 (+1)LHR 19:25 19:04 (−21)
10-17PRG 17:45 17:41 (−4)LHR 18:55 18:35 (−20)
10-16PRG 17:50 (+0)LHR 19:00 18:43 (−17)

Board clocks recorded as PRG and LHR 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 — BA855 Prague to London on-time performance, measured from the PRG and LHR airport boards.

Canonical URL
https://proflightsearch.com/flight/BA855
How we measure this →