Thanks Apskip for the airport transfer information! Boingo discovered caps for the Frankfurt Airport train station though, so I'm pretty sure teams are mandated to enter the country via Frankfurt to ease customs clearing. This has usually been the case when the destination doesn't host the largest airport in the country/region, for example teams in TAR 14 were mandated to fly into Moscow before heading to Krasnoyarsk, and to fly via Guangzhou to get to Guilin.
I have some flights from Buenos Aires to Frankfurt in the Timeline Thread: http://forum.realityfanforum.com/index.php/topic,21194.msg513305.html#msg513305
I believe teams are released in Bariloche in the morning of the 4th, not the afternoon/evening of the 3rd, otherwise they should all be bunched up and able to reach Hamburg in the daytime. Most of them arrive at the Intersection in the dark, though.
In particular, for Jet/Cord to arrive in Hamburg by sunset (4.02pm), it looks like they are going to take (and make) this itinerary:
AR 2681 to Buenos Aires AEP, 1110-1313
Transfer to Buenos Aires EZE
JJ 8005 to Sao Paulo, 1520-1900
LH 507 to Frankfurt, 2005-1035
ICE to Hamburg, 1137-1534