AirHint found the following cheapest return flights from San Diego (SAN) to Riga (RIX) in December 2025 (see full year).
Return flights
| 05 Dec - 27 Dec | Air Canada | ||
| 06 Dec - 27 Dec | Lufthansa | ||
| 04 Dec - 27 Dec | Lufthansa |
Also check the deals for one-way flights from San Diego to Riga in December.
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