AirHint found the following cheapest return flights from San Antonio (SAT) to Islamabad (ISB) in December 2025 (see full year).
Return flights
| 09 Dec - 16 Dec | Qatar Airways | ||
| 10 Dec - 16 Dec | Emirates | ||
| 13 Dec - 16 Dec | Volaris | ||
| 13 Dec - 12 Jan | Spirit Airlines |
Also check the deals for one-way flights from San Antonio to Islamabad in December.
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