Stopovers between Denver and Frankfurt
Denver to Frankfurt is about 8,088 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
Sits almost exactly on the great circle between North America and Europe, so the detour is tiny.
Train from Schiphol to Centraal in 15 minutes, every few minutes.
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 the airport to the old town in 12 minutes, so even a single night works.
RER B from CDG reaches central Paris in about 35 minutes.
Short train in; Bruges and Ghent are an easy day trip.
The Blue Line runs from O'Hare to the Loop around the clock.
UP Express runs to Union Station in 25 minutes.
Metro from the airport to the centre in 15 minutes; great for one night.
Tram from the airport straight to Princes Street.
Compact lakeside city with free public transport for hotel guests.