How long is the UA3903 flight?

The timetable allows 10 h 28 min. Chicago to Rio de Janeiro is 8,541 km (5,307 mi).

What other flight numbers does UA3903 have?

Also listed as UAL3903 (United Airlines' ICAO code) and UA 3903.

UA3903 Flight Status United Airlines: Chicago to Rio de Janeiro (UAL3903)

Are you looking for the November 9th, 2026 UA 3903 Toronto to Houston flight? Go to our UA3903 Toronto to Houston Flight Status page >

UA 3903 Chicago to Rio de Janeiro Flight Status

Not scheduled today (November 9th, 2026). Latest flight: November 1st, 2026 ; recent history is in the table below.

UA 3903 Flight Status & Schedule United Airlines Chicago to Rio de Janeiro

Date	From	To	Departure	Arrival	Status	Details
Nov 01	ORD	GIG	01:11	11:43	Unknown	Track >

United Airlines' Chicago–Rio de Janeiro flight covers 8,541 km (5,307 mi). The timetable allows 10 h 28 min; there is not enough recent history yet to say how long it usually takes. It is not flying today; the last flight was scheduled on 1 November 2026.

< All Chicago ORD Departures All Rio de Janeiro GIG Arrivals >

About UA 3903

Route: Chicago O'Hare International Airport ORD to Rio de Janeiro Galeao International Airport GIG
Distance: 8,541 km (5,307 mi)
Scheduled flight time: 10 h 28 min

UA 3903 FAQ

How long is the UA3903 flight?: The timetable allows 10 h 28 min. Chicago to Rio de Janeiro is 8,541 km (5,307 mi).
What other flight numbers does UA3903 have?: Also listed as UAL3903 (United Airlines' ICAO code) and UA 3903.

UA3903 and Chicago ORD to Rio de Janeiro GIG Flights

Other flights departing from Chicago ORD: YX4765, OO6364

Other flights arriving at Rio de Janeiro GIG: UA3903, G32095, G32023

All flights connecting Chicago ORD to Rio de Janeiro GIG.