Every Chicago–Sydney 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/chicago-to-sydney/#2026-11-07-2026-12-04-UAhttps://flight.deals/flights/chicago-to-sydney/#2026-11-07-2026-12-04-UACHI → SYD round-trip on United, 2026-11-07 to 2026-12-04 (27 nights). Cached fare $923. Not enough cached history on this route yet to say what it usually costs.Mon, 17 Aug 2026 06:03:15 GMT