AirHint found the following cheapest return flights from Seattle (SEA) to Guatemala City (GUA) in October 2025 (see full year).
Return flights
| 31 Oct - 15 Nov | Frontier Airlines | ||
| 31 Oct - 16 Nov | Frontier Airlines | ||
| 28 Oct - 31 Oct | Frontier Airlines | ||
| 22 Oct - 03 Nov | Frontier Airlines |
Also check the deals for one-way flights from Seattle to Guatemala City in October.
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