AirHint found the following cheapest return flights from San Salvador (SAL) to Brussels (BRU) in December 2025 (see full year).
Return flights
| 27 Dec - 31 Jan | Spirit Airlines | ||
| 23 Dec - 01 Jan | Iberia | ||
| 25 Dec - 01 Jan | Iberia | ||
| 22 Dec - 05 Jan | Avianca | ||
| 23 Dec - 05 Jan | Avianca |
Also check the deals for one-way flights from San Salvador to Brussels in December.
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