Originally Posted by
phkc070408
It used to be the opposite, that 2 fares were more than twice as expensive as one.
Example: Flight has 1 P fare but 2 F fares. If a couple booked on the same reservation, they would both get F fares, not 1 P and 1 F. I guess now the P fare for 1 is more than the F fares for 2.
This was partially mentioned above, but was worth emphasizing.
If you had to pick such a flight, then splitting the reservation makes sense. But, there are usually other options with 2 seats in the same fare class (even then, I prefer splitting the reservation because this makes it easier for one party to change/cancel without impacting the other).