Every Hong Kong–Porto 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/hong-kong-to-porto/#2026-09-09-2026-09-09-CXhttps://flight.deals/flights/hong-kong-to-porto/#2026-09-09-2026-09-09-CXHKG → OPO round-trip on Cathay Pacific, 2026-09-09 to 2026-09-09 (1 nights). Cached fare $1,445. Not enough cached history on this route yet to say what it usually costs.Tue, 01 Sep 2026 12:09:07 GMT