UA3900 Flight Status United Airlines: Seoul to San Francisco (UAL3900)

ICN Seoul

Scheduled
19:30

Terminal: 1 | Gate: 35

Departure: Mon, Nov 9, 2026 · local time UTC+9

Seoul Incheon International Airport (ICN)

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SFO San Francisco

Scheduled
13:17

Terminal: INTL

Arrival: Mon, Nov 9, 2026 · local time PST

San Francisco International Airport (SFO)

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This flight is cancelled.

Route map ICN to SFO Map of the great-circle route from Seoul Incheon International Airport, South Korea to San Francisco International Airport, United States, 9085 km. The plane shows an estimated position based on departure and arrival times. Map data: Natural Earth. ICN SFO Map data: Natural Earth

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Distance: 9085 km / 5645 miles · Scheduled Duration: 10:47

UA 3900 Flight Status & Schedule United Airlines Seoul to San Francisco

Date From To Departure Arrival Status Details
Nov 09 ICN SFO 19:30 13:17 Cancelled Track >

United Airlines operates UA 3900 from Seoul to San Francisco, a 9,085 km (5,645 mi) trip, once a week, on Mondays. The timetable allows 10 h 47 min; there is not enough recent history yet to say how long it usually takes. Today's flight was cancelled.

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About UA 3900

Route
Seoul Incheon International Airport ICN to San Francisco International Airport SFO
Distance
9,085 km (5,645 mi)
Scheduled flight time
10 h 47 min
Flies
Mon

UA 3900 FAQ

How long is the UA3900 flight?
The timetable allows 10 h 47 min. Seoul to San Francisco is 9,085 km (5,645 mi).
Which days does UA3900 fly?
Once a week, on Mondays, based on the schedule of the last 7 days.
What other flight numbers does UA3900 have?
Also listed as UAL3900 (United Airlines' ICAO code) and UA 3900.

UA3900 and Seoul ICN to San Francisco SFO Flights

Other flights departing from Seoul ICN: OZ733, UA3851

Other flights arriving at San Francisco SFO: UA900, B6833, OO4734, OO6429

All flights connecting Seoul ICN to San Francisco SFO.