flight.deals — Washington → San JoséEvery Washington–San José 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-us$316 · Washington → San José (−38% vs typical)https://flight.deals/flights/washington-to-san-jose-costa-rica/#2027-01-08-2027-01-15-UAhttps://flight.deals/flights/washington-to-san-jose-costa-rica/#2027-01-08-2027-01-15-UAWAS → SJO round-trip on United, 2027-01-08 to 2027-01-15 (7 nights). Cached fare $316 vs typical $510.Tue, 01 Sep 2026 12:09:07 GMT