A straight return is not always the best-value way to fly premium. Two routing tools, used well, can lower the fare and give you more trip for the same money.
Open-jaw
An open-jaw itinerary flies you into one city and home from another. If your trip already moves between cities, this saves a backtrack and can price better than two separate tickets.
Stopovers
Many carriers allow a stopover in their hub for a day or several. You break the journey, rest, and effectively add a second destination, often without raising the fare meaningfully.
Building it
Fare rules for these constructions vary by carrier and contract. This is exactly the kind of itinerary the desk builds by hand, so send your rough plan and we will shape the routing around it.