AirHint found the following cheapest return flights from Washington (DCA) to Zagreb (ZAG) in December 2025 (see full year).
Return flights
| 01 Dec - 16 Dec | jetBlue | ||
| 30 Dec - 24 Jan | Air Canada | ||
| 26 Dec - 05 Jan | Air Canada | ||
| 27 Dec - 17 Jan | Emirates | ||
| 09 Dec - 03 Jan | Emirates |
Also check the deals for one-way flights from Washington to Zagreb in December.
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