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United Airlines

Is UA3997 delayed?

No — UA3997 landed in Dulles 2 min early, at 16:32 on Sep 29 (as of Sep 29, 20:32 UTC).

Usually on time: arrived within 15 min of schedule on 30 of the last 35 flights.

Arrived

2 min early

Official source · Updated

Departure

Hartford

BDL

Actual

Scheduled 15:13

Sep 29

Arrival

Dulles

IAD

Actual

Scheduled 16:35

Sep 29

Times shown in airport local time

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

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual

Arrival · UTC

Scheduled
Estimated
Not available
Actual
View this flight’s market

Market prices express trading expectations about a contract’s stated threshold. They do not confirm airline status. The linked market shows its terms and activity.

Recent arrivals

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

  • Hartford → Dulles

    2 min early
  • Hartford → Dulles

    On schedule (9 min behind)
  • Hartford → Dulles

    On schedule (6 min behind)
  • Hartford → Dulles

    30 min late
  • Hartford → Dulles

    25 min early

Is UA3997 usually late?

Observation window: Aug 31, 2026 – Sep 30, 2026

Observed arrivals
35
On time
86%
of 35 arrivals
Late
14%
of 35 arrivals
Cancelled
0%
of 35 flights
Median arrival delay
14 min early
9 in 10 arrived within
28 min

On time means arriving no more than 15 minutes after the scheduled time; late means more than 15 minutes after. Cancelled and diverted flights are counted apart from arrivals. 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

At the airports today

Dulles (IAD) departures

Left more than 15 min late
28 of 195
Cancelled today
0

All United Airlines flights

Flight history and details
UA3997 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 29, 2026ArrivedHartfordDulles-2
Sep 28, 2026ArrivedHartfordDulles9
Sep 27, 2026ArrivedHartfordDulles6
Sep 26, 2026ArrivedHartfordDulles30
Sep 25, 2026ArrivedHartfordDulles-25
Sep 24, 2026ArrivedHartfordDulles41
Sep 23, 2026ArrivedDullesRochester-6
Sep 23, 2026ArrivedBurlingtonDulles25
Sep 22, 2026ArrivedDullesRochester-1
Sep 22, 2026ArrivedBurlingtonDulles0
Sep 21, 2026ArrivedDullesRochester-18
Sep 20, 2026ArrivedDullesRochester-20
Sep 20, 2026ArrivedBurlingtonDulles-17
Sep 19, 2026ArrivedDullesRochester-21
Sep 19, 2026ArrivedBurlingtonDulles-11
Sep 18, 2026ArrivedDullesRochester1
Sep 17, 2026ArrivedDullesRochester15
Sep 16, 2026ArrivedDullesRochester-20
Sep 16, 2026ArrivedBurlingtonDulles-36
Sep 15, 2026ArrivedDullesRochester-18
Sep 15, 2026ArrivedBurlingtonDulles-21
Sep 14, 2026ArrivedDullesRochester-25
Sep 13, 2026ArrivedBurlingtonDulles66
Sep 12, 2026ArrivedDullesRochester-28
Sep 12, 2026ArrivedBurlingtonDulles-14
Sep 11, 2026ArrivedDullesRochester-17
Sep 10, 2026ArrivedDullesRochester53
Sep 9, 2026ArrivedDullesRochester-8
Sep 9, 2026ArrivedBurlingtonDulles-32
Sep 8, 2026ArrivedDullesRochester-17
Sep 8, 2026ArrivedBurlingtonDulles-1
Sep 7, 2026ArrivedBaton RougeHouston-27
Sep 6, 2026ArrivedBaton RougeHouston-7
Sep 5, 2026ArrivedBaton RougeHouston-25
Sep 4, 2026ArrivedBaton RougeHouston-14

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