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United Airlines

Is UA599 delayed?

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

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

Arrived

34 min early

Official source · Updated

Departure

Dulles

IAD

Actual

Scheduled 17:50

Sep 23

Arrival

Denver

DEN

Actual

Scheduled 19:24

Sep 23

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 (America/Los_Angeles)

Arrived

13 min early

Official source · Updated

Departure

San Francisco

SFO

Actual

Scheduled 08:34

Sep 23

Arrival

Dulles

IAD

Actual

Scheduled 16:17

Sep 23

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual

Arrival · UTC

Scheduled
Estimated
Not available
Actual
Route overview: Dulles → DenverIADDEN
Route overview
Route overview: San Francisco → DullesSFOIAD
Route overview

Recent arrivals

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

  • SFO → IAD

    10 min early

  • IAD → DEN

    34 min early

  • SFO → IAD

    13 min early

  • IAD → DEN

    26 min early

  • SFO → IAD

    23 min late
Flight history and details

Aug 25, 2026 — Sep 24, 2026

Observed arrivals
52
Arrivals over 15 minutes late
17
Observed cancellations
0
Observed occurrences
59

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

UA599 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 24, 2026ArrivedSan FranciscoDulles
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-10
Sep 23, 2026ArrivedDullesDenver
-34
Sep 23, 2026ArrivedSan FranciscoDulles
-13
Sep 22, 2026ArrivedDullesDenver
-26
Sep 22, 2026ArrivedSan FranciscoDulles
23
Sep 21, 2026ArrivedDullesDenver
21
Sep 21, 2026ArrivedSan FranciscoDulles
-15
Sep 20, 2026ArrivedDullesDenver
-13
Sep 20, 2026ArrivedSan FranciscoDulles
119
Sep 19, 2026ArrivedDullesDenver
-30
Sep 19, 2026ArrivedSan FranciscoDulles
1
Sep 18, 2026ArrivedDullesDenver
-41
Sep 18, 2026ArrivedSan FranciscoDulles
-4
Sep 17, 2026ArrivedDullesDenver
31
Sep 17, 2026ArrivedSan FranciscoDulles
11
Sep 16, 2026ArrivedDullesDenver
64
Sep 16, 2026ArrivedSan FranciscoDulles
15
Sep 15, 2026ArrivedDullesDenver
-7
Sep 15, 2026ArrivedSan FranciscoDulles
35
Sep 14, 2026ArrivedDullesDenver
-2
Sep 14, 2026ArrivedSan FranciscoDulles
-25
Sep 13, 2026ArrivedDullesDenver
61
Sep 13, 2026ArrivedSan FranciscoDulles
-31
Sep 12, 2026ArrivedDullesDenver
-8
Sep 12, 2026ArrivedSan FranciscoDulles
7
Sep 11, 2026ArrivedDullesDenver
-26
Sep 11, 2026ArrivedSan FranciscoDulles
-18
Sep 10, 2026ArrivedDullesDenver
-26
Sep 10, 2026ArrivedSan FranciscoDulles
-34
Sep 9, 2026ArrivedDullesDenver
-11
Sep 9, 2026ArrivedSan FranciscoDulles
-9
Sep 8, 2026ArrivedDullesDenver
17
Sep 8, 2026ArrivedSan FranciscoDulles
44
Sep 7, 2026ArrivedDullesDenver
-37
Sep 7, 2026ArrivedSan FranciscoDulles
37
Sep 6, 2026ArrivedDullesDenver
6
Sep 6, 2026ArrivedSan FranciscoDulles
-18
Sep 5, 2026ArrivedDullesDenver
-33
Sep 5, 2026ArrivedSan FranciscoDulles
-5
Sep 4, 2026ArrivedDullesDenver
33
Sep 4, 2026ArrivedSan FranciscoDulles
69
Sep 3, 2026ArrivedDullesDenver
-43
Sep 3, 2026ArrivedSan FranciscoDulles
22
Sep 2, 2026ArrivedDullesDenver
45
Sep 2, 2026ArrivedSan FranciscoDulles
1
Sep 1, 2026ArrivedDullesDenver
-21
Aug 31, 2026ArrivedDullesDenver
-32
Aug 30, 2026ArrivedDullesDenver
-1
Aug 29, 2026ArrivedDullesDenver
-20
Aug 28, 2026ArrivedDullesDenver
18
Aug 27, 2026ArrivedDullesDenver
24
Aug 26, 2026ArrivedDullesDenver
43

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