QR3521Qatar Airways · BCN → ACE
live · 13m ago
Route confirmed Qatar Airways

QR3521 BarcelonaBCN · 18:55 San BartoloméACE · 21:10

QR3521 by Qatar Airways flies from Barcelona (BCN) to San Bartolomé (ACE).

Right nowNext departure today Operates daily
06:25

scheduled from BCN

The route today

live boards
BCNBarcelonaOn-time likelyBCN delay board →
ACESan BartoloméOn-time likelyACE delay board →
BCN→ACEevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
54%Chance of 15+ min delay
5.3%Chance of cancellation
+39 minTypical airport delay in this weather

Driven mainly by BCN (Barcelona), 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 on this route

Forecast

Barcelona to San Bartolomé with Qatar Airways · Sat 31 Oct, local date

Outlook: about usual
Chance a departure is cancelled
0.5%1.2× usual
Chance a departure leaves 60+ min late
5.2%0.8× usual

Forecast: WeatherTomorrow · incl. data from ECMWF (CC BY 4.0, modified) · About 2 departures a day on this route with this airline. · 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 Barcelona to San Bartolomé flights today

same route · Qatar Airways
QR3767departs 09:00
QR3506departs 18:40
QR3557departs 18:40

If QR3521 is cancelled, these are the other Qatar Airways nonstop flights from Barcelona to San Bartolomé on the same day, with scheduled departure times in BCN 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 QR3521 actually runs

Pro Flight Search has tracked every published board update for QR3521 across the BCN and ACE boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 2 completed legs so far: left right on schedule but landed about 19 min early. Not enough to call it.

The verdict above is that record speaking, so it reflects how QR3521 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
10-24BCN 18:55 18:54 (−1)ACE 21:10 20:41 (−29)
10-21BCN 14:00 14:02 (+2)ACE 16:20 16:11 (−9)

Board clocks recorded as BCN and ACE 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: QR3521 Barcelona to San Bartolomé on-time performance, measured from the BCN and ACE airport boards.

Canonical URL
https://proflightsearch.com/flight/QR3521
How we measure this →