United AirlinesUA
Flights UA3870 18:45 Tu
live
Direct flights from Rio De Janeiro (GIG) to San Francisco (SFO): 1 nonstop departure observed each week across 1 airline. The nonstop covers 10,639 km, an estimated 14 hours 8 minutes in the air. Measured by Pro Flight Search from live flight boards at Rio De Janeiro and San Francisco. Updated 29 October 2026 at 10:44 UTC.
GIG
Rio De Janeiro
busy · +19
SFO
San Francisco
smooth · +0
10,639 km · ~14h 08m est.
Running clean · 1 airline · 1x weekly · nonstop
87 / 100
route health from live GIG and SFO delay boards
Flight time~14h 08mestimated from route distance
Weekly departures1x1 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 daysAirports right now
live boardsWeather lens
Conditions are tightest at SFO: a 43% chance of a 15+ minute delay. In this weather, the more delayed of the two airports is typically about +15 min. Both figures come from the two airports' delay records in similar weather. See live delays → · Weather risk by airport →
next sweep in 120s
How the Rio De Janeiro to San Francisco route actually runs
Pro Flight Search records official board updates for nonstop GIG to SFO 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: Rio De Janeiro (GIG) to San Francisco (SFO) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/GIG-SFO
GIG to SFO questions
Is GIG–SFO running on time right now?
Smooth skies ahead. The departure side at GIG is the weaker end, route health score 87/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from GIG to SFO?
Great-circle distance is 10,639 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 781–942 min gate-to-gate on this route.
How often does GIG–SFO fly?
United Airlines runs the route with about 1 flight a week (tue). 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 GIG and arrival-side delay at SFO, 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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