Every Washington–Santiago fare we track, measured against the route's typical price whenever there is enough cached history to build one. Subscribe in any RSS reader for free single-route price alerts — no account, no email needed.https://flight.dealsen-ushttps://flight.deals/flights/washington-to-santiago/#2026-11-05-2026-11-29-F9https://flight.deals/flights/washington-to-santiago/#2026-11-05-2026-11-29-F9WAS → SCL round-trip on Frontier Airlines, 2026-11-05 to 2026-11-29 (24 nights). Cached fare $844. Not enough cached history on this route yet to say what it usually costs.Tue, 15 Sep 2026 10:23:38 GMT