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United Airlines

Is UA3550 delayed?

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

Last reported

Cancelled

This update may be out of date.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

Update time unavailable

Departure

Chicago

ORD

Scheduled

Sep 19

Arrival

Louisville

SDF

Scheduled

Sep 19

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual
Not available

Arrival · UTC

Scheduled
Estimated
Not available
Actual
Not available
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.

  • ORD → SDF

    17 min early

  • ORD → SDF

    8 min late

  • ORD → SDF

    21 min late

  • ORD → SDF

    17 min early

  • ORD → SDF

    44 min early
Flight history and details

Aug 21, 2026 — Sep 20, 2026

Observed arrivals
14
Arrivals over 15 minutes late
2
Observed cancellations
2
Observed occurrences
16

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

UA3550 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 19, 2026CancelledChicagoLouisvilleNot available
View this flight’s market
Not available
Sep 18, 2026ArrivedChicagoLouisville
-17
Sep 17, 2026CancelledChicagoLouisvilleNot available
Not available
Sep 16, 2026ArrivedChicagoLouisville
8
Sep 15, 2026ArrivedChicagoLouisville
21
Sep 14, 2026ArrivedChicagoLouisville
-17
Sep 13, 2026ArrivedChicagoLouisville
-44
Sep 12, 2026ArrivedChicagoLouisville
-6
Sep 11, 2026ArrivedChicagoLouisville
14
Sep 10, 2026ArrivedChicagoLouisville
-26
Sep 9, 2026ArrivedChicagoLouisville
-21
Sep 8, 2026ArrivedChicagoLouisville
-27
Sep 7, 2026ArrivedPortlandNewark
45
Sep 6, 2026ArrivedPortlandNewark
-17
Sep 5, 2026ArrivedPortlandNewark
-10
Sep 4, 2026ArrivedPortlandNewark
3

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