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United Airlines

Is UA1604 delayed?

Each route and date is shown separately. Confirm that both airports match your booking.

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

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Update time unavailable

Departure

Denver

DEN

Scheduled

Sep 8

Arrival

Reno

RNO

Scheduled

Sep 8

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual
Not available

Arrival · UTC

Scheduled
Estimated
Not available
Actual
Not available

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

Arrived

97 min late

Official source · Updated

Departure

San Francisco

SFO

Actual

Scheduled 11:09

Sep 8

Arrival

Denver

DEN

Actual

Scheduled 14:25

Sep 8

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual

Arrival · UTC

Scheduled
Estimated
Not available
Actual

Service date: · Scheduled departure date (UTC)

Arrived

34 min early

Official source · Updated

Departure

Raleigh/Durham

RDU

Actual

Scheduled 10:49

Sep 8

Arrival

San Francisco

SFO

Actual

Scheduled 09:12

Sep 8

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual

Arrival · UTC

Scheduled
Estimated
Actual
Route overview: San Francisco → DenverSFODEN
Route overview

Recent arrivals

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

  • SFO → DEN

    14 min early

  • RDU → SFO

    26 min early

  • DEN → RNO

    20 min late

  • SFO → DEN

    18 min late

  • RDU → SFO

    14 min early
Flight history and details

Aug 20, 2026 — Sep 19, 2026

Observed arrivals
45
Arrivals over 15 minutes late
13
Observed cancellations
0
Observed occurrences
50

Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.

How flight status works

UA1604 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 19, 2026ArrivedSan FranciscoDenver
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-14
Sep 19, 2026ArrivedRaleigh/DurhamSan Francisco
View this flight’s market
-26
Sep 18, 2026ArrivedDenverReno
View this flight’s market
20
Sep 18, 2026ArrivedSan FranciscoDenver
18
Sep 18, 2026ArrivedRaleigh/DurhamSan Francisco
-14
Sep 17, 2026ArrivedDenverReno
7
Sep 17, 2026ArrivedSan FranciscoDenver
-9
Sep 16, 2026ArrivedDenverReno
20
Sep 16, 2026ArrivedSan FranciscoDenver
31
Sep 16, 2026ArrivedRaleigh/DurhamSan Francisco
-22
Sep 15, 2026ArrivedDenverReno
1
Sep 15, 2026ArrivedSan FranciscoDenver
10
Sep 15, 2026ArrivedRaleigh/DurhamSan Francisco
-21
Sep 14, 2026ArrivedDenverReno
-14
Sep 14, 2026ArrivedRaleigh/DurhamSan Francisco
-21
Sep 13, 2026ArrivedSan FranciscoDenver
-3
Sep 13, 2026ArrivedRaleigh/DurhamSan Francisco
-24
Sep 12, 2026ArrivedDenverReno
-5
Sep 12, 2026ArrivedSan FranciscoDenver
-17
Sep 12, 2026ArrivedRaleigh/DurhamSan Francisco
-31
Sep 11, 2026ArrivedDenverReno
-4
Sep 11, 2026ArrivedRaleigh/DurhamSan Francisco
1
Sep 10, 2026ArrivedDenverReno
31
Sep 10, 2026ArrivedSan FranciscoDenver
21
Sep 9, 2026ArrivedDenverReno
-9
Sep 9, 2026ArrivedSan FranciscoDenver
27
Sep 9, 2026ArrivedRaleigh/DurhamSan Francisco
-21
Sep 8, 2026ArrivedSan FranciscoDenver
97
Sep 8, 2026ArrivedRaleigh/DurhamSan Francisco
-34
Sep 7, 2026ArrivedDenverReno
8
Sep 6, 2026ArrivedDenverReno
12
Sep 5, 2026ArrivedDenverReno
-27
Sep 4, 2026ArrivedDenverReno
-8
Sep 1, 2026ArrivedDenverReno
4
Aug 31, 2026ArrivedDenverReno
-11
Aug 30, 2026ArrivedDenverReno
38
Aug 29, 2026ArrivedDenverReno
5
Aug 28, 2026ArrivedDenverReno
185
Aug 27, 2026ArrivedDenverReno
14
Aug 26, 2026ArrivedDenverReno
-13
Aug 25, 2026ArrivedDenverReno
-10
Aug 24, 2026ArrivedDenverReno
22
Aug 23, 2026ArrivedDenverReno
68
Aug 22, 2026ArrivedDenverReno
27
Aug 21, 2026ArrivedDenverReno
2

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