I'm thinking they all got on the same flight from Bern to Munich:
LH3655 0645-0750 (The next flight out is a staggering 4.5h later!)
With teams checking in between (I think) 3pm and 4.30pm and leaving in the dark of night, they'd be comfortable with the 70km taxi ride to Bern. (Sunset for the previous day was 5.11pm.)
I'm thinking (after watching Insiders):
Luke/Margie, Tammy/Victor, Mark/Michael: 3.27pm
Mike/Mel: 3.33pm
Amanda/Kris: 3.50pm
LaKisha/Jennifer: 3.52pm
Cara/Jaime, Brad/Victoria, Steve/Linda: 3.52-4.22pm
Jodi/Christie, Jennifer/Preston: 4.22pm