score:2
No, there won't be any problem. Separate bookings are separate bookings and don't affect each other, even on the same airline.
I will note, however, that if you make a habit of buying A-B-C tickets and getting off at B, and give your frequent flyer number every time, the airline will eventually get grumpy. However, doing this once or twice is fine.
Upvote:0
Upvote:0
I would not count on being able to do this with the same airline. Many airlines implement revenue protection systems that can automatically cancel duplicate bookings. Since it's not physically possible to take all the flights you've booked, the airline may detect that and cancel one of your bookings.
There may be a higher chance of success if you use different airlines.
Upvote:2
There might be a big problem with any checked-in bag. If this is all with the same airline, your bag might be checked through to destination C, with no opportunity to retrieve it at the intermediate stop B.