Stopovers between Boston and Frankfurt
Boston to Frankfurt is about 5,889 km. 12 cities sit close enough to the route to add a night or two, and Reykjavík, Zurich, Geneva have airline stopover programs. Pick your dates to see what each one really costs.
Cities on the way
US preclearance on the way home means you land in the US as a domestic arrival.
Heathrow Express gets you to Paddington in 15 minutes.
Train from Schiphol to Centraal in 15 minutes, every few minutes.
RER B from CDG reaches central Paris in about 35 minutes.
Sits almost exactly on the great circle between North America and Europe, so the detour is tiny.
Train from the airport to the old town in 12 minutes, so even a single night works.
Short train in; Bruges and Ghent are an easy day trip.
Compact lakeside city with free public transport for hotel guests.
Tram from the airport straight to Princes Street.
European feel without crossing the Atlantic.
Beer gardens, museums and easy Alpine day trips.
Plenty of flights from every airline make for flexible stopovers.