United Airlines

Flights from Chicago O’Hare to Sydney

ORD SYD · Australia

From

£1,367

return · 1 adult · economy

Operated by

United Airlines

Shortest outbound

21h 10m

Direct option

No (connecting only)

Live offers

Sample sail-date: 2026-10-10 outbound · 2026-10-17 return. Prices refresh daily.

How long is a flight from Chicago O’Hare to Sydney with United Airlines?: The shortest current offer is 21h 10m outbound from ORD to SYD. On the sample dates we only see connecting options — try other dates for direct flights.
Does United Airlines fly direct from ORD to SYD?: Not on these sample dates — the cheapest offers we see are connecting flights. Direct service may exist on other dates.
How much does a United Airlines ticket from ORD to SYD cost?: The cheapest return economy fare we found today is £1,367 for 1 adult, based on sample dates 2026-10-10 → 2026-10-17. Prices change daily — run the live search for current fares.