United Airlines UA3551 Flight Status
According to Trip.com real-time data, the UA3551 flight operated by United Airlines on Sep 20, 2026 is scheduled to fly from Chicago (ORD) to Louisville (SDF). The flight is expected to depart at 9:20 PM (local time in Chicago, UTC-5) and land at 11:08 PM (local time in Louisville, UTC-4) .
Sat, Sep 19
Sun, Sep 20
Mon, Sep 21
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Arrived
The flight has arrived 10m late
1h 36m
Check-in Counter
--
Boarding Gate
C4
Arrival Gate
A11
Baggage
A
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Scheduled
Your flight will depart on time.
1h 36m
Check-in Counter
--
Boarding Gate
C6
Arrival Gate
--
Baggage
--
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Scheduled
Your flight will depart on time.
1h 36m
Check-in Counter
--
Boarding Gate
--
Arrival Gate
--
Baggage
--
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Information provided by VariFlight For real-time updates, please check airport displays or contact your airline. You can also explore more flights from Chicago to Louisville or track other flights with our flight status tracker.
Track the Previous Flight Status: Scheduled
UA3483
|
Indianapolis (IND) 
Chicago (CHI)
Chicago (CHI)Scheduled: 7:55 PM
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UA3551 Aircraft Details
According to Trip.com real-time data, the UA3551 flight flying from Chicago to Louisville on 9/20/2026 is operated by the aircraft model Embraer 175. This aircraft has been in service for 3y, 10m. The aircraft is equipped with 76 seats.
Embraer 175
Punctuality (Departure)
50%
Punctuality (Arrival)
87%
Early on average
6 minutes
Age
3y, 10m
Seats
76
Flight Distance
--
Economy
First
Premium Economy
In-Flight Services
None
Inflight entertainment is available
Unknown
No power outlets are available
Seat Information
79 cm
More legroom than on 31% of flights
46 cm
Seat width better than on 23% of flights
100°
Reclining Angle
2-2
Seat layout example
In-Flight Services
Snacks
Inflight entertainment is available
Unknown
Power outlet
Seat Information
94 cm
Legroom
51 cm
Seat width better than on 38% of flights
120°
Reclining Angle
1-2
Seat layout example
In-Flight Services
None
In-flight entertainment is unavailable
Unknown
No power outlets are available
Seat Information
86 cm
More legroom than on 15% of flights
46 cm
Seat width better than on 23% of flights
105°
Reclining Angle
--
Seat layout example
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Flight History for UA3551
Trip.com historical records show that the last UA3551 flight departed on Sat, Sep 19 from ORD at approximately 10:19 PM. This flight is expected to arrrive in SDF at 12:06 AM.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Tue, Sep 15 | Chicago (ORD) | Louisville (SDF) | E75L | 11:50 PM | 1:38 AM | Arrived |
| Wed, Sep 16 | Chicago (ORD) | Louisville (SDF) | E75L | 9:54 PM | 11:42 PM | Arrived |
| Thu, Sep 17 | Chicago (ORD) | Louisville (SDF) | E75L | 9:58 PM | 11:44 PM | Arrived |
| Fri, Sep 18 | Chicago (ORD) | Louisville (SDF) | E75L | 7:01 PM | 9:05 PM | Arrived |
| Sat, Sep 19 | Chicago (ORD) | Louisville (SDF) | E75L | 10:19 PM | 12:06 AM | Arrived |
| Sun, Sep 20 | Chicago (ORD) | Louisville (SDF) | E75L | 9:20 PM | 11:08 PM | Scheduled |
| Mon, Sep 21 | Chicago (ORD) | Louisville (SDF) | E75L | 9:20 PM | 11:56 PM | Scheduled |
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UA3551 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of UA3551 is 50% (Late on average 38 minutes), and the on-time arrival rate is 87% (Early on average 6 minutes).
On-Time Departures
Punctuality
50%
Late on average 38 minutes
Early
0%
On time
50%
30 mins late
37%
60 mins late
3%
90 mins late
10%
Canceled
1%
On-Time Arrivals
Punctuality
87%
Early on average 6 minutes
Early
80%
On time
7%
30 mins late
7%
60 mins late
0%
90 mins late
7%
Canceled
1%
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Frequently Asked Questions
What is the current status of flight ua3551?
Flight ua3551 has not departed yet and is currently on schedule. Scheduled departure 9:20 PM, arrival 11:56 PM (updated Sep 20, 2026).Is flight ua3551 on time today?
Flight ua3551 has not departed yet and is currently on schedule. Scheduled departure is 9:20 PM, with arrival at 11:56 PM. Recheck gate and timing before you head to the airport.Has flight ua3551 departed yet? What is the departure time?
Flight ua3551 is scheduled to depart at 9:20 PM. The latest actual or estimated departure time is 9:20 PM, and the current status is Scheduled (updated Sep 20, 2026).When is flight ua3551 scheduled to arrive?
Flight ua3551 is scheduled to arrive at 11:56 PM. The latest estimated or actual arrival time is 11:08 PM. Status is Scheduled as of Sep 20, 2026.What is the gate information for flight ua3551?
For flight ua3551, the departure terminal is T2 and the boarding gate is C6. Gate assignments can change at short notice—confirm on airport screens before heading to security.What route does flight ua3551 fly?
Flight ua3551 is operated by United Airlines from Chicago (ORD) to Louisville (SDF). Typical flight time is about 1 hour36 minutes; operating days may include Sunday.How can I check real-time status for flight ua3551?
Track flight ua3551 on this Trip.com status page for live departure, arrival, gate and baggage updates. For push alerts on the go, open the same flight in the Trip.com App and turn on flight notifications.If flight ua3551 is delayed or canceled, what should I do?
If ua3551 is delayed or canceled, first confirm the latest status here (Scheduled, updated Sep 20, 2026). Contact United Airlines or your booking channel for rebooking or refund options, and check Trip.com Manage Booking if you booked on Trip.com.Has flight ua3551 departed from Chicago?
Flight ua3551 has not departed from Chicago (ORD) yet and is currently on schedule for 9:20 PM.What is the seat configuration for flight ua3551?
Flight ua3551 usually flies a Embraer 175 with seat layout 2-2. Layouts can differ by aircraft subtype and cabin product—confirm your seat map in Manage Booking after you purchase.
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