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United Airlines

Is UA1186 delayed?

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

Arrived

4 min early

Updated

Departure

Chicago

ORD

Actual

Scheduled 06:15

Aug 24

Arrival

Boston

BOS

Actual

Scheduled 09:36

Aug 24

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Actual

Arrival · UTC

Scheduled
Estimated
Actual
Route overview: Chicago → BostonORDBOS
Route overview

Recent arrivals

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

  • ORD → BOS

    8 min late

  • ORD → BOS

    22 min early

  • ORD → BOS

    5 min early

  • ORD → BOS

    1 min late

  • ORD → BOS

    6 min early
Flight history and details

Aug 19, 2026 — Sep 18, 2026

Observed arrivals
29
Arrivals over 15 minutes late
2
Observed cancellations
0
Observed occurrences
30

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

UA1186 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 18, 2026ArrivedChicagoBoston
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8
Sep 17, 2026ArrivedChicagoBoston
-22
Sep 16, 2026ArrivedChicagoBoston
-5
Sep 15, 2026ArrivedChicagoBoston
1
Sep 14, 2026ArrivedChicagoBoston
-6
Sep 13, 2026ArrivedChicagoBoston
-26
Sep 12, 2026ArrivedChicagoBoston
-5
Sep 11, 2026ArrivedChicagoBoston
-17
Sep 10, 2026ArrivedChicagoBoston
-28
Sep 9, 2026ArrivedChicagoBoston
-7
Sep 8, 2026ArrivedChicagoBoston
-13
Sep 7, 2026ArrivedChicagoBoston
-1
Sep 6, 2026ArrivedTulsaChicago
-7
Sep 5, 2026ArrivedChicagoBoston
-16
Sep 4, 2026ArrivedChicagoBoston
32
Sep 3, 2026ArrivedChicagoBoston
-23
Sep 2, 2026ArrivedChicagoBoston
7
Sep 1, 2026ArrivedChicagoBoston
-9
Aug 31, 2026ArrivedChicagoBoston
-10
Aug 30, 2026ArrivedChicagoBoston
-12
Aug 29, 2026ArrivedChicagoBoston
-16
Aug 28, 2026ArrivedChicagoBoston
-18
Aug 27, 2026ArrivedChicagoBoston
-10
Aug 26, 2026ArrivedChicagoBoston
-13
Aug 25, 2026ArrivedChicagoBoston
-10
Aug 24, 2026ArrivedChicagoBoston
-4
Aug 23, 2026ArrivedChicagoBoston
-8
Aug 21, 2026ArrivedChicagoBoston
-11
Aug 20, 2026ArrivedChicagoBoston
35

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