United AirlinesUA100% on time
Flights UA861 varies daily
live
Direct flights from Washington (IAD) to São Paulo (GRU): 7 nonstop departures observed each week across 1 airline. 100% of the last 7 operated flights arrived within 15 minutes of schedule. The median arrival is 8 minutes early. No cancellations were recorded across the 7 tracked flights. The nonstop covers 7,649 km, an estimated 10 hours 18 minutes in the air. Measured by Pro Flight Search from live flight boards at Washington and São Paulo. Updated 15 September 2026 at 18:03 UTC.
IAD
Washington
busy · +26
GRU
São Paulo
smooth · +0
7,649 km · ~10h 18m est.
Runs reliable · 1 airline · 7x weekly · nonstop
100% on time
of the last 7 operated IAD → GRU flights arrived within 15 minutes
Median arrival delay is −8 min. 0 of 7 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−8 minacross the last 7 operated legs
Flight time~10h 18mestimated from route distance
Weekly departures7x1 direct airline on the leg
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 IAD: 30% odds of a 15+ minute delay, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the Washington to São Paulo route actually runs
Pro Flight Search records official board updates for nonstop IAD 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 — Washington (IAD) 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/IAD-GRU
IAD to GRU questions
Is IAD–GRU running on time right now?
Smooth skies ahead. The departure side at IAD is the weaker end, route health score 83/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from IAD to GRU?
Great-circle distance is 7,649 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 570–686 min gate-to-gate on this route.
How often does IAD–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 IAD 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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