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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)

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Update time unavailable

Departure

Dulles

IAD

Scheduled

Aug 20

Arrival

—

—

Scheduled

Not available

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual
Not available

Arrival · UTC

Scheduled
Not available
Estimated
Not available
Actual
Not available

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

Arrived

16 min early

Updated

Departure

Boston

BOS

Actual

Scheduled 05:45

Aug 20

Arrival

Dulles

IAD

Actual

Scheduled 07:20

Aug 20

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual

Arrival · UTC

Scheduled
Estimated
Not available
Actual
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.

  • IAD → LAX

    24 min late

  • BOS → IAD

    14 min early

  • IAD → LAX

    23 min early

  • BOS → IAD

    15 min early

  • IAD → LAX

    16 min early
Flight history and details

Aug 20, 2026 — Sep 19, 2026

Observed arrivals
50
Arrivals over 15 minutes late
2
Observed cancellations
0
Observed occurrences
51

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 18, 2026ArrivedDullesLos Angeles
View this flight’s market
24
Sep 18, 2026ArrivedBostonDulles
View this flight’s market
-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
Aug 23, 2026ArrivedDullesLos Angeles
-45
Aug 23, 2026ArrivedBostonDulles
-16
Aug 22, 2026ArrivedDullesLos Angeles
-11
Aug 22, 2026ArrivedBostonDulles
-12
Aug 21, 2026ArrivedDullesLos Angeles
-31
Aug 21, 2026ArrivedBostonDulles
-16
Aug 20, 2026ArrivedBostonDulles
-16

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