I want to follow a timeline approach to see where it leads to on departure time for flights Prague to the U.S. We start with the approximately 0915am (since the customs clearance should have been minimal) departure from Prague airport, which is about 6 miles west of downtown Prague.
I am going to guesstimate that it took 30 minutes for teams other than Brian/Ericka to get by taxi to Old Town Square during rush hour traffic. From there it took maybe 15 minutes to take a taxi to Troja. Completing the traverse of the wires would have been about 30 minutes for the slowest member of each team. Getting a taxi back to the Estates Theater would have been maybe 20 minutes. The ROADBLOCK could have taken maybe 60 minutes for the first team, 80 minutes for the second team and 120 minutes for the third team although we saw that Sam/Dan and Nate/Herb were very close in the time that they finished, so maybe 100 minutes for each one. Then it is 10 minutes on foot to Prague Castle and 5 minutes to find the pit stop. That would mean the pit stop arrival time of the first 3 teams is approximately:
If we can assume a 12 hours pit stop teams with be released just before or after midnight starting Wed. Aug. 5. Depending on how long ep. 11 tasks are, they could finish by 2am and start a 36 hour extended pitstop. That would release them around 2pm the afternoon of Thursday Aug. 6. They could reach Prague Ruzyne airport before 3pm.