Originally Posted by
number21
What are the duration rules on the stopover? How many stopovers are allowed in one redemption?
I assume that the official answer is what's on the
Award Travel Rules & Conditions page on delta.com:
Open Jaw
Open-jaw travel is permitted and counts as a stopover. Restrictions apply. For details, please contact a Delta representative.
Stopovers
One stopover is allowed per Award. Round-the-World Awards allow a maximum of three stopovers per continent, not to exceed 6.
In practice, I'm inclined to think that it's whatever the system decides to allow. And I would think that the policies may change substantially once partner airlines are involved. I'm sure that others here may know better answers.
As for duration, I would think that it just has to fit into the total maximum days allowed for the entire itinerary. In my double open jaw with standby that you referenced, I also arranged a layover in CDG of just over 8 hours -- enough time to go into the city to see the Monet exhibit at the Grand Palais without having to collect our checked luggage.