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United Airlines

Is UA1734 delayed?

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

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

DepartedLast reported

<1 min early

This update may be out of date. Check with your airline.

Update time unavailable

Departure

Dulles

IAD

Actual

Scheduled 08:18

Sep 22

Arrival

Los Angeles

LAX

Scheduled

Sep 22

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual

Arrival · UTC

Scheduled
Estimated
Not available
Actual
Not available

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

Arrived

1 min late

Official source · Updated

Departure

Boston

BOS

Actual

Scheduled 06:00

Sep 22

Arrival

Dulles

IAD

Actual

Scheduled 07:15

Sep 22

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 → Los AngelesIADLAX
Route overview
Route overview: Boston → DullesBOSIAD
Route overview

Recent arrivals

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

  • BOS → IAD

    1 min late

  • IAD → LAX

    14 min early

  • BOS → IAD

    8 min early

  • IAD → LAX

    <1 min early

  • BOS → IAD

    10 min early
Flight history and details

Aug 23, 2026 — Sep 22, 2026

Observed arrivals
50
Arrivals over 15 minutes late
2
Observed cancellations
0
Observed occurrences
52

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

UA1734 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 22, 2026ArrivedBostonDulles
1
Sep 21, 2026ArrivedDullesLos Angeles
-14
Sep 21, 2026ArrivedBostonDulles
-8
Sep 20, 2026ArrivedDullesLos Angeles
0
Sep 20, 2026ArrivedBostonDulles
-10
Sep 19, 2026ArrivedDullesLos Angeles
-34
Sep 19, 2026ArrivedBostonDulles
0
Sep 18, 2026ArrivedDullesLos Angeles
24
Sep 18, 2026ArrivedBostonDulles
-14
Sep 17, 2026ArrivedDullesLos Angeles
-23
Sep 17, 2026ArrivedBostonDulles
-15
Sep 16, 2026ArrivedDullesLos Angeles
-16
Sep 16, 2026ArrivedBostonDulles
-19
Sep 15, 2026ArrivedDullesLos Angeles
-31
Sep 15, 2026ArrivedBostonDulles
-10
Sep 14, 2026ArrivedBostonDulles
-3
Sep 13, 2026ArrivedBostonDulles
-6
Sep 12, 2026ArrivedBostonDulles
-18
Sep 11, 2026ArrivedDullesLos Angeles
-25
Sep 11, 2026ArrivedBostonDulles
2
Sep 10, 2026ArrivedDullesLos Angeles
-9
Sep 10, 2026ArrivedBostonDulles
-17
Sep 9, 2026ArrivedDullesLos Angeles
-29
Sep 9, 2026ArrivedBostonDulles
-9
Sep 8, 2026ArrivedDullesLos Angeles
-37
Sep 8, 2026ArrivedBostonDulles
-11
Sep 7, 2026ArrivedDullesLos Angeles
-39
Sep 7, 2026ArrivedBostonDulles
-9
Sep 6, 2026ArrivedDullesLos Angeles
-36
Sep 6, 2026ArrivedBostonDulles
-9
Sep 5, 2026ArrivedDullesLos Angeles
118
Sep 5, 2026ArrivedBostonDulles
-6
Sep 4, 2026ArrivedDullesLos Angeles
-19
Sep 4, 2026ArrivedBostonDulles
0
Sep 3, 2026ArrivedDullesLos Angeles
-35
Sep 3, 2026ArrivedBostonDulles
9
Sep 2, 2026ArrivedBostonDulles
-17
Sep 1, 2026ArrivedBostonDulles
-23
Aug 31, 2026ArrivedDullesLos Angeles
-29
Aug 31, 2026ArrivedBostonDulles
-13
Aug 30, 2026ArrivedDullesLos Angeles
-30
Aug 30, 2026ArrivedBostonDulles
-19
Aug 29, 2026ArrivedDullesLos Angeles
-33
Aug 29, 2026ArrivedBostonDulles
-15
Aug 28, 2026ArrivedDullesLos Angeles
-28
Aug 28, 2026ArrivedBostonDulles
-12
Aug 27, 2026ArrivedBostonDulles
-19
Aug 26, 2026ArrivedBostonDulles
11
Aug 25, 2026ArrivedBostonDulles
-16
Aug 24, 2026ArrivedBostonDulles
-6

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