Originally Posted by
MSPeconomist
Could it be that the "explanation" is that BOS-MUC requires either a connection in the USA at JFK or ATL, with the TATL flight operated by DL or a flight to CDG/AMS, followed by an intraEU flight operated by AF/KLM, while the BOS-AMS routes wouldn't have introEU segments except possibly for CDG-AMS or LHR-AMS. The AF/KLM intraEU AMS-MUC or CDG-MUC might get into married segment logic and not be a flight that AF/KLM is willing to sell as a connection from a TATL flight because it's a valuable segment to offer as a standalone intraEU EuroBusiness ticket. It could be a common route for high-yield European business travelers.
No, that's got nothing to do with it. As I stated above, there are a bunch of roundtrip D1 fares on BOS-AMS with only 12 hour or 3 day min stay requirements that don't exist on BOS-MUC. The 5th position of the fare basis code indicates min-stay requirement on TATL fares -- 0=12 hours, 3=3 days, 6=Sat night, 7=7 days, 5=14 days. If it's a 9, it's a one-way fare (any fare basis codes with less than 8 characters are also one-way fares).
Here's a subset of roundtrip D1 fares on BOS-AMS that are valid for 11/30 - 12/6 trips. Notice all the fares with a '0' or '3' in the 5th position? These fares don't exist on BOS-MUC. While most of them don't allow for stopovers, there are a small subset that do. In particular, the DNX00RD8 and DNW00RD8 refundable roundtrip fares below allow them and they are cheaper than any of the D1 fares on BOS-MUC (even with a $500 stopover fee for the stopover in MUC) when you don't have a Sat night/7 day min stay roundtrip to qualify for the roundtrip fares on BOS-MUC. The DNX00ND7 and DNW00ND7 fares are the non-refundable equivalents for these fares, but they don't allow for stopovers as can be seen in the fare rules.
