Route notes
Why this routing works
This is a compact two-week Europe routing built around a single open-jaw arrival in Portugal. The ticket starts in Kalispell, then picks up again in Porto after an overland segment, continues by air to Lisbon, and returns to Kalispell. That structure works well when part of the trip is handled outside the long-haul ticket while keeping the international flights on one itinerary.
Within Portugal, Porto to Lisbon is a straightforward sequencing choice that keeps the trip moving in one direction before the transatlantic return. For a shorter trip length like this, limiting the ticket to one internal flight helps keep the routing simple while still covering two city stops.
In economy, the sold range on this route was USD 2,340 to USD 3,063, with departure in September. For timing, this kind of itinerary is best treated as a short multi-stop rather than a round-the-world build: one overseas destination area, one domestic connection within the country, and a direct return flow back to the origin.