Originally Posted by
icedancer
Perhaps I should have added, if there were IRROPS leading to arrival in SFO more than, say, 8 hrs late, going to SFO would essentially become worthless and I’d just head home to Seattle. Seems like a win-win…
If your intent is to spend time in San Francisco and then head back to Seattle, try pricing it out that way. Your fare may allow for a free/inexpensive stopover in SFO. Alternatively, if you only need one night in SFO, it won't create a stopover, per se, but if your stay in SFO is less than 24 hours you should get the same price as if you took the next flight to SEA (assuming there's availability in the appropriate fare class).