Route notes
Why this routing works
This 4-week itinerary is structured as an open-jaw multi-stop ticket: Honolulu to San Francisco, then a separate overland gap before the ticket resumes in Vienna. That break creates flexibility in the middle of the trip while keeping the long-haul flying on one economy itinerary.
With 3 nights in San Francisco, the routing builds in a short first stop before the overland segment to Vienna. From there, the ticket continues with a regional hop to Bucharest and then closes the loop back to Honolulu, which keeps the final return simple rather than requiring backtracking.
For timing, a May departure fits a compact month-long plan well, especially when one section is intentionally left open between North America and Europe. Pricing on this sold example ranged from USD 2,671 to USD 3,496 in economy, which places the value in the sequencing: one ticket handling the flown sectors, with the surface segment separating the U.S. and Europe portions.