Stopovers between Denver and Barcelona
Denver to Barcelona is about 8,354 km. 12 cities sit close enough to the route to add a night or two, and Madrid, Reykjavík, Lisbon have airline stopover programs. Pick your dates to see what each one really costs.
Cities on the way
Iberia lets you stop 1–9 nights at no extra airfare.
Sits almost exactly on the great circle between North America and Europe, so the detour is tiny.
One of the easiest stopover cities in Europe: metro from the airport, walkable, great food.
Riverside wine town with a direct metro from the airport.
The Blue Line runs from O'Hare to the Loop around the clock.
UP Express runs to Union Station in 25 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.
RER B from CDG reaches central Paris in about 35 minutes.
European feel without crossing the Atlantic.
Plenty of flights from every airline make for flexible stopovers.
Compact lakeside city with free public transport for hotel guests.