Analysis of Flight Delays by Departure Time
Nov 12, 2014, 10:10 am
#1
Original Poster
Join Date: Aug 2013
Location: Here
Posts: 44
Analysis of Flight Delays by Departure Time
Some nice plots generated from all US flight data from 2013 (excluding 12am-6am). Interesting trend at SFO vs. others.
http://www.decisionsciencenews.com/2...flight-delays/
http://www.decisionsciencenews.com/2...flight-delays/
Nov 12, 2014, 4:31 pm
#2
FlyerTalk Evangelist
Join Date: May 2002
Location: Pittsburgh
Programs: MR/SPG LT Titanium, AA LT PLT, UA SLV, Avis PreferredPlus
Posts: 30,993
Not really surprising, but still nice to see a quantatative alanysis and validation of what we "know".
SFO likely has a large block of flights to the east coast, and 12-2 is about as late as those leave. So the tapering off of flights, allowing the airport to "catch up" is much earlier than most airports, where it's late in the evening.
SFO likely has a large block of flights to the east coast, and 12-2 is about as late as those leave. So the tapering off of flights, allowing the airport to "catch up" is much earlier than most airports, where it's late in the evening.
Nov 14, 2014, 9:54 am
#3
Join Date: Mar 2013
Location: LAX
Programs: Thai Gold, UA, AA, SWA
Posts: 362
On time is totally controlled by the airlines. If you just pad the timings, the incidences goes down drastically. Just see what Southwest did. As soon as they added a few minutes, their on time statistics improved dramatically.
Nov 15, 2014, 9:10 am
#4
Join Date: Aug 2013
Programs: UA-GS, Hyatt-Defiantly Diamond, Marriott-Platinum, SPG-Platinum
Posts: 499
I find the SFO curve very interesting. All other airports have a very similar curve trajectory, but SFO has a mid-morning bubble that the other airports don't have. Wonder what events could explain this?
Nov 15, 2014, 7:40 pm
#5
Join Date: Jun 2006
Location: California
Programs: AS,WN,UA,B6,hotels
Posts: 4,239
On time by padding would seem to affect arrivals. The article focused on departure times for specifically that reason.
I find the SFO curve very interesting. All other airports have a very similar curve trajectory, but SFO has a mid-morning bubble that the other airports don't have. Wonder what events could explain this?
I find the SFO curve very interesting. All other airports have a very similar curve trajectory, but SFO has a mid-morning bubble that the other airports don't have. Wonder what events could explain this?
SFO has a large number of late morning arriving international flights from Asia. Combine that with the fog causing closure of one of the two main landing runways (because they are too close together to be used simultaneously in other than sunny conditions) and delays build up starting in the morning.
Those graphs may explain a lot why UA seems to get delayed a lot. ORD, SFO, and DEN, which are three of UA's big hubs, are high delay airports.
Nov 20, 2014, 6:11 am
#6
Join Date: Apr 2001
Posts: 775
On time by padding would seem to affect arrivals. The article focused on departure times for specifically that reason.
I find the SFO curve very interesting. All other airports have a very similar curve trajectory, but SFO has a mid-morning bubble that the other airports don't have. Wonder what events could explain this?
I find the SFO curve very interesting. All other airports have a very similar curve trajectory, but SFO has a mid-morning bubble that the other airports don't have. Wonder what events could explain this?