This simply doesn't make economic sense.

[randomness]

It is kind of odd when two one way flights are cheaper than a round trip to and from the same airports on the same days.

Not unheard of, but odd.

Comments

[r-ness.livejournal.com]

That's also cheaper than the round-trip.

Two one-ways:

BOS->SFO, Thursday 15 May
$271, American (PHL) or AirTran (ATL)

SFO->BOS, Saturday 17 May
$258, Sun Country (MSP)

Total: $529

Cheapest displayed round-trip:
BOS-PHL-SFO, SFO-DFW-BOS
$542, American