Route notes
Why this routing works
This itinerary uses a compact Europe routing over 2 weeks: Washington DC to Paris, onward to Helsinki, then an open-jaw surface segment to Stockholm before the return to Washington DC. The double slash in the routing indicates the Helsinki-to-Stockholm portion is handled overland rather than by air, which can help keep the flight plan focused on the long-haul sectors.
Sequencing Paris before Helsinki creates a straightforward west-to-north progression within Europe, followed by a final departure from Stockholm. For ticketing, this is effectively a multi-stop return with one surface sector built in, rather than a simple roundtrip to a single city. That structure suits travelers who want to arrive in one Scandinavian city and depart from another without backtracking by air.
With departure in August, this route sits in the July-to-September travel window and keeps the overall schedule tight at 2 weeks. In economy, the published sample price range is USD 1,014 to USD 1,547, covering the transatlantic outbound, the intra-Europe flight segment, and the return from Stockholm to Washington DC.