Two cities, one trip: open-jaw flying from the Balkans

The classic mistake in European trip planning is the boomerang: flying into a city, traveling onward, then paying in time and money to come back to the same airport. With low-cost carriers you almost never need to. Book two one-way tickets — into city A, home from city B — and the trip unfolds in a line instead of a circle.

Why it works from the Balkans

Wizz Air and Ryanair sell one-way fares with no round-trip penalty, and the region's airports each reach a slightly different set of destinations. That asymmetry is an asset: fly Belgrade to Prague, come home from Vienna to Belgrade, or land in Milan and leave from Rome. You see two cities and pay for exactly the flying you use.

Pairs that fit a week

• Prague + Vienna, connected by a comfortable 4-hour train.
• Milan + Rome, with Italy's fast rail making the hop painless.
• Budapest + Vienna, the shortest inter-capital leg in Europe.
• Barcelona + Madrid for a bigger Spanish bite, linked by high-speed rail.
• Berlin + Prague, cheap buses and trains all day long.

Booking the pieces

Search each leg separately and treat the ground segment as part of the transport budget. Trains between the paired cities are often cheapest booked a few weeks ahead; buses stay cheap until the end. Since a Plavion search prices transport and stays as separate lists with direct links, building an open-jaw trip is just two searches instead of one.