Route notes
Why this routing works
This routing keeps the longer stay first, with Seville followed by a shorter stop in Edinburgh before returning to Montrose. That sequence fits a simple open-jaw style within Europe while keeping the overall trip to about 2 weeks.
Starting and ending in Montrose means the ticket is built as a round trip rather than a one-way chain, which can help organize a short multi-stop itinerary cleanly. With two European stops in economy, the main planning focus is connection timing into Spain, then a short onward segment to Scotland, before the return to the USA.
April departure timing places this itinerary in the apr-jun season window. This sample shows a compact two-stop international routing with one primary stay and one shorter city break layered into the return.