Originally Posted by
SensFan
...2. I believe that most of the time it worked when there is a codeshared flight involved. The latest occurrence was with BMI and sadly it could be the last because it got a lot more exposure than previous postings of the trick.
I saw these fares on ORD-IAD-LHR-IAD-ORD itineraries with all UA flights, though perhaps they were BMI codeshares. Earlier this year, US had to be in there.