United AirlinesUA0% on time
Flights UA845 21:30 daily
live
Direct flights from Chicago (ORD) to São Paulo (GRU): 7 nonstop departures observed each week across 1 airline. 0% of the last 5 operated flights arrived within 15 minutes of schedule. The median arrival is 37 minutes late. No cancellations were recorded across the 5 tracked flights. The nonstop covers 8,428 km, an estimated 11 hours 18 minutes in the air. Measured by Pro Flight Search from live flight boards at Chicago and São Paulo. Updated 7 September 2026 at 06:39 UTC.
ORD
Chicago
disrupted · +122
GRU
São Paulo
smooth · +0
8,428 km · ~11h 18m est.
Runs rough · 1 airline · 7x weekly · nonstop
0% on time
of the last 5 operated ORD → GRU flights arrived within 15 minutes
Median arrival delay is +37 min. 0 of 5 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+37 minacross the last 5 operated legs
Flight time~11h 18mestimated from route distance
Weekly departures7x1 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 boardsWeather lens
Current conditions put the pressure at ORD: 37% odds of a 15+ minute delay and around +14 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the Chicago to São Paulo route actually runs
Pro Flight Search records official board updates for nonstop ORD to GRU 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 São Paulo (GRU) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/ORD-GRU
ORD to GRU questions
Is ORD–GRU running on time right now?
Significant delay risk. The departure side at ORD is the weaker end, route health score 50/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from ORD to GRU?
Great-circle distance is 8,428 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 625–752 min gate-to-gate on this route.
How often does ORD–GRU fly?
United Airlines runs the route with about 7 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.
What does the route health score measure?
A blend of departure-side delay at ORD and arrival-side delay at GRU, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.
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