BA857British Airways · PRG → LHR
live · 5m ago
Route confirmed British Airways

BA857 PraguePRG · 20:55 LondonLHR · 21:55

BA857 by British Airways flies from Prague (PRG) to London (LHR).

Right nowNext departure today Operates daily
20:55

scheduled from PRG

Wins back in air~8 minmedian gate push vs arrival · how planes make up time →

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

Delay & cancellation outlook for this flight

Measured, 90-day sample
29%Chance of 15+ min delay
2.6%Chance of cancellation
+1 minTypical airport delay in this weather

Conditions at PRG and LHR 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 Prague

Forecast

Thu 5 Nov, local date

High7°Clikely 6°C to 9°C
Low0°Clikely −2°C to 3°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 London

Forecast

Thu 5 Nov, local date

High11°Clikely 10°C to 12°C
Low8°Clikely 6°C to 9°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 Prague to London flights today

same route · British Airways
BA865departs 06:35
BA853departs 11:10
BA855departs 14:35
BA859departs 18:30
BA861departs 20:40
BA863departs 21:20

If BA857 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 that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How BA857 actually runs

Pro Flight Search has tracked every published board update for BA857 across the PRG and LHR boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 2 completed legs so far: landed +16 min. Not enough to call it.

The verdict above is that record speaking, so it reflects how BA857 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
10-23PRG 20:55 21:51 (+56)LHR 21:55 22:37 (+42)
10-22PRG 21:35 21:27 (−8)LHR 22:35 22:24 (−11)

Board clocks recorded as PRG and LHR published them.

Planning around BA857? 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: BA857 Prague to London on-time performance, measured from the PRG and LHR airport boards.

Canonical URL
https://proflightsearch.com/flight/BA857
How we measure this →