I was just browsing the flight paths when I saw this: enter image description here
(FlightRadar24: SN2825 from BRU to BUD on 26 Jul 2022)

But normally the path is straighter like this (not flying over Zurich): enter image description here
(FlightRadar24: SN2825 from BRU to BUD on 25 Jul 2022)

I have seen even more deviation, like flying above Venice. This all adds some time to the total flight time.

Why is that? How can I know the reason?

  • 6
    $\begingroup$ Have you looked at weather maps and airspace closures at the time of the route? $\endgroup$
    – Ron Beyer
    Jul 26, 2022 at 20:26
  • 3
    $\begingroup$ Hi Akos, welcome to aviation.stackexchange. Please add the date of the flights to the question by using the edit function. WIthout knowing the date/time of these flight paths, it is going to be very hard to get a reliable answer. $\endgroup$
    – DeltaLima
    Jul 26, 2022 at 21:29
  • $\begingroup$ I updated the date/time (without links), but the radar url's are also available now. Hopefully they remain accessible over time. $\endgroup$
    – Akos
    Jul 27, 2022 at 9:30
  • $\begingroup$ @RonBeyer well, that could be a sufficient explanation for me. Even if I don't find such a map (where can I view the weather at a given point in the past, or the airspace closures, without any subscription). I would never have imagined of closures or such 'bad' weather to make such detour anyways, especially because other flights didn't make that deviation. But sometimes it is even a larger curve, down to Venice as I mentioned. $\endgroup$
    – Akos
    Jul 28, 2022 at 9:11

1 Answer 1


This should explain it. Aircraft had to divert because of weather. this was the forecast for Thursday, but it was like this Tuesday as well. There were severe storms all across Germany during the week.

  • $\begingroup$ I doubt that was the reason. We didn't have any rain yesterday in west Germany, e.g. Frankfurt reported 0mm rain yesterday (source). Also, other flights in a similar direction flew the normal route without the detour (e.g. SN2905 to Vienna). $\endgroup$
    – Bianfable
    Jul 27, 2022 at 12:13
  • 1
    $\begingroup$ Check out this screenshot from FR24's playback feature. There are many other aircraft in that area. $\endgroup$
    – Bianfable
    Jul 27, 2022 at 12:20
  • 1
    $\begingroup$ @Bianfable I would argue that that is neither how weather works, nor how airline dispatching works. Just because you didnt see the weather doesnt mean it wasn't there, and just because some airlines chose to go through/over the weather doesn't mean all will. $\endgroup$
    – Jamiec
    Jul 27, 2022 at 12:28
  • $\begingroup$ @Jamiec OK, maybe there was weather to avoid, but this answer doesn't show at all that this weather existed. The map is for a Thursday (tomorrow? last week?). I can't find a historical weather radar map of the region, but the forecast for 1500UTC (17:00 local) looked like this the evening before. Until evidence of thunderstorms is added to this answer, this is IMHO just speculation. $\endgroup$
    – Bianfable
    Jul 27, 2022 at 13:09
  • $\begingroup$ @Bianfable That I don't disagree with! $\endgroup$
    – Jamiec
    Jul 27, 2022 at 13:13

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .