United AirlinesUA
Flights UA3874 06:00 Su · UA3879 18:00 Tu · UA3872 22:00 Mo · UA3890 22:05 Su
live
Direct flights from Chicago (ORD) to Melbourne (MLB): 4 nonstop departures observed each week across 1 airline. The median arrival is 46 minutes late. No cancellations were recorded across the 2 tracked flights. The nonstop covers 1,677 km, an estimated 2 hours 39 minutes in the air. Measured by Pro Flight Search from live flight boards at Chicago and Melbourne. Updated 15 September 2026 at 04:37 UTC.
ORD
Chicago
smooth · +5
MLB
Melbourne
tracking
1,677 km · ~2h 39m est.
Running clean · 1 airline · 4x weekly · nonstop
90 / 100
route health from live ORD and MLB delay boards
Median arrival delay is +46 min. 0 of 2 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+46 minacross the last 2 operated legs
Flight time~2h 39mestimated from route distance
Weekly departures4x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
United Airlines
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsnext sweep in 120s
How the Chicago to Melbourne route actually runs
Pro Flight Search records official board updates for nonstop ORD to MLB flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — Chicago (ORD) to Melbourne (MLB) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/ORD-MLB
ORD to MLB questions
Is ORD–MLB running on time right now?
Smooth skies ahead. The departure side at ORD is the weaker end, route health score 90/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on ORD–MLB?
Operators schedule morning departures around 06:00 and evening departures around 18:00 from ORD. Earlier flights typically land before destination-airport delays accumulate later in the day; check the MLB delay card to confirm conditions when you'd arrive.
How long is the flight from ORD to MLB?
Great-circle distance is 1,677 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 148–174 min gate-to-gate on this route.
How often does ORD–MLB fly?
United Airlines runs the route with about 5 flights a week (sun, mon, tue, thu). Since one carrier owns the route, a single disruption tends to ripple through the day.
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