I’ve written many times in the past, such as in this post all about Singapore Airlines, about crediting United flights to Singapore to earn 100% of the flown miles, just like in the good old days.
For example, when United has $616 round-trip tickets from Newark to Tel Aviv earlier this year, I wrote that you would earn 11,384 miles if you credited the trip to Singapore Airlines instead of just 2,650 miles if you credited the trip to United as Singapore awarded the full amount of miles flown, while United only awarded 5 miles per pre-tax dollar spent.
It was a bit surprising that the workaround lasted so long. After all, United and Singapore don’t get along. If you want to redeem United miles for a Singapore flight you need to call United to book it as United removed Singapore Airlines from their website years ago after a dispute with them.
Unfortunately with Singapore’s new mileage accrual chart, that workaround is now dead. United G and K class tickets now earn just 25% of the flown miles with Singapore. That’s even less than the 50% of flown miles that most other Star Alliance carriers offer for United flights. Better options for those fares include crediting the flight to Air Canada Aeroplan, Aegean, Avianca, COPA, EgyptAir, Turkish, etc for 50% of the flown miles.
United L, S, and T class fares will earn 50% of the flown miles with Singapore, Q, V, and W fares will earn 75% of the flown miles, and only high price B, E, H, M, U, and Y class fares will earn 100% of the flown miles.
Is it worth crediting a flight to another airline for 50% of the flown miles? It depends on many factors, including how much the ticket costs, how many miles will be flown, the value in the other airline’s award chart, the ease of redemptions from the other airline, the expiration policy of the other airline’s miles, etc. It also depends on whether you’re trying to earn elite status with United, as then you would want to credit the flight to United. And finally it depends on whether you have a United credit card, as being a cardholder allows you to use miles on significantly more flights than partner airlines or non-cardholders have access to.
Some airlines, like Alaska Airlines, still award 100% of their flown miles. But the era of earning a lot of miles while flying on cheap fares is coming to an end.