Route notes
Why this routing works
This is a straightforward open-jaw style transatlantic sequence: depart Newark, spend the bulk of the trip in Edinburgh, continue onward to Amsterdam, and finish in New York City. The stop pattern keeps the long stay first, with a shorter final stop before the return, which is a clean fit for travelers building one primary base plus a second city add-on into a single ticket.
At six weeks total, the timing is weighted heavily toward Edinburgh at 38 nights, followed by 5 nights in Amsterdam. That distribution matters for ticket structure, since the itinerary is not trying to maximize stop count; it is using a small number of stops with longer ground time in the main destination. For a March departure in the Jan-Mar season window, this reads as a compact, efficient transatlantic routing rather than a round-the-world build.
Because the trip begins at Newark and ends in New York City, the outbound and inbound use different New York-area airports on the ticket. That can be useful when pricing or availability supports it, while still keeping the trip anchored to the same metro area.