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United Airlines

Is UA5579 delayed?

No delay reported yet. UA5579 is scheduled to leave San Francisco at 22:58 on Nov 15 and reach Seattle at 00:49 (Nov 16) (as of Nov 15, 12:40 UTC). Of its last 19 arrivals graded against a published schedule, 4 landed more than 15 min late.

No live update yet

Showing the published schedule until live times come in.

Update time unavailable

Departure

San Francisco

SFO

Scheduled

Nov 15

Arrival

Seattle

SEA

Scheduled

Nov 16

Times shown in airport local time

Service date: · Scheduled departure date (America/Los_Angeles)

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual
Not available

Arrival · UTC

Scheduled
Estimated
Not available
Actual
Not available

Route overview: San Francisco → SeattleSFOSEA
San Francisco → Seattle

Recent arrivals

Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.

  • San Francisco → Seattle

    233 min late

  • San Francisco → Seattle

    16 min early

  • San Francisco → Seattle

    29 min early

  • San Francisco → Seattle

    13 min early

  • San Francisco → Seattle

    25 min early

Is UA5579 usually late?

Period: Oct 16, 2026 – Nov 15, 2026

Landings recorded
19
Graded against schedule
19
Not graded
0
On time
15
Late
4
Cancelled
0
Diverted
0

Percentages and delay figures appear once 20 arrivals are graded.

On time means landing no more than 15 minutes after the scheduled arrival, late more than 15 minutes after, both times read to the minute. The percentages share one base: graded arrivals plus cancelled and diverted flights. A cancelled plan another plan of the flight replaced within 12 hours is not counted. Median and “9 in 10” are interpolated over the graded arrivals. Compares scheduled and actual arrival times, read to the minute. Some flights may be missing.

How flight status works

Departures on record at these airports today

San Francisco (SFO) departures

Too few departures on record with a known outcome so far today to judge: 5 of 20 needed.

Flights from San Francisco to Seattle today

Seattle (SEA) departures

Too few departures on record with a known outcome so far today to judge: 5 of 20 needed.

Counts cover the departures on record at each airport, not its full schedule.

Related flights

All United Airlines flights

Flight history and details
UA5579 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Nov 14, 2026ArrivedSan FranciscoSeattle233
Nov 12, 2026ArrivedSan FranciscoSeattle-16
Nov 10, 2026ArrivedSan FranciscoSeattle-29
Nov 8, 2026ArrivedSan FranciscoSeattle-13
Nov 7, 2026ArrivedSan FranciscoSeattle-25
Nov 5, 2026ArrivedSan FranciscoSeattle-25
Nov 3, 2026ArrivedSan FranciscoSeattle-11
Nov 2, 2026ArrivedSan FranciscoSeattle-25
Nov 1, 2026ArrivedSan FranciscoSeattle18
Oct 31, 2026ArrivedSan FranciscoSeattle-30
Oct 29, 2026ArrivedSan FranciscoSeattle-37
Oct 27, 2026ArrivedSan FranciscoSeattle-22
Oct 25, 2026ArrivedSan FranciscoSeattle32
Oct 23, 2026ArrivedSan FranciscoSeattle12
Oct 22, 2026ArrivedSan FranciscoSeattle66
Oct 21, 2026ArrivedSan FranciscoSeattle-42
Oct 19, 2026ArrivedSan FranciscoSeattle-39
Oct 18, 2026ArrivedSan FranciscoSeattle-31
Oct 16, 2026ArrivedSan FranciscoSeattle-39
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