United Airlines UA4040 Flight Status
Based on Trip.com’s real-time data, the UA4040 flight operated by United Airlines on Sep 20, 2026 is scheduled to fly from Houston (IAH) to Louisville (SDF). The flight is expected to depart at 16:33 (local time in Houston, UTC-5) and land at 19:20 (local time in Louisville, UTC-4) .
Sat, Sep 19
Sun, Sep 20
Mon, Sep 21
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Arrived
The flight has arrived 25m early
2h 22m
Check-in Counter
--
Boarding Gate
A7
Arrival Gate
A6
Baggage
1
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Scheduled
Your flight will depart on time.
2h 22m
Check-in Counter
--
Boarding Gate
A2
Arrival Gate
--
Baggage
--
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Scheduled
Your flight will depart on time.
2h 22m
Check-in Counter
--
Boarding Gate
--
Arrival Gate
--
Baggage
--
Information provided by VariFlight For the latest updates, please refer to airport announcements or consult your airline. You can also explore more flights from Houston to Louisville or track other flights with our flight status tracker.
Track the Previous Flight Status: Scheduled
UA4061
|
Midland (MAF) 
Houston (HOU)
Houston (HOU)Scheduled: 15:54
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UA4040 Aircraft Details
According to Trip.com real-time data, the UA4040 flight flying from Houston to Louisville on 9/20/2026 is operated by the aircraft model Embraer 175. This aircraft has been in service for 11y, 6m. The aircraft is equipped with 76 seats.
Embraer 175
Punctuality (Departure)
91%
Punctuality (Arrival)
91%
Early on average
8 minutes
Age
11y, 6m
Seats
76
Distance
--
Economy
First
Premium Economy
Onboard Amenities
None
Inflight entertainment is available
Unknown
Unknown
Seating Plan
79 cm
Legroom
46 cm
Seat width
100°
Reclining Angle
2-2
Seat layout example
Onboard Amenities
Snacks
Inflight entertainment is available
Unknown
Power outlet
Seating Plan
94 cm
Legroom
51 cm
Seat width
120°
Reclining Angle
1-2
Seat layout example
Onboard Amenities
Snacks
In-flight entertainment is unavailable
Wi-Fi is available
No power outlets are available
Seating Plan
86 cm
Legroom
46 cm
Seat width
105°
Reclining Angle
--
Seat layout example
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Flight History for UA4040
Trip.com historical records show that the last UA4040 flight departed on Sat, Sep 19 from IAH at approximately 16:43. This flight is expected to arrrive in SDF at 19:30.
| Date | Airport | Aircraft Type | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Tue, Sep 15 | Houston (IAH) | Louisville (SDF) | E75L | 19:38 | 22:29 | Arrived |
| Wed, Sep 16 | Houston (IAH) | Louisville (SDF) | E75L | 16:31 | 19:16 | Arrived |
| Thu, Sep 17 | Houston (IAH) | Louisville (SDF) | E75L | 16:43 | 19:31 | Arrived |
| Fri, Sep 18 | Houston (IAH) | Louisville (SDF) | E75L | 16:45 | 19:33 | Arrived |
| Sat, Sep 19 | Houston (IAH) | Louisville (SDF) | E75L | 16:43 | 19:30 | Arrived |
| Sun, Sep 20 | Houston (IAH) | Louisville (SDF) | E75L | 16:33 | 19:20 | Scheduled |
| Mon, Sep 21 | Houston (IAH) | Louisville (SDF) | E75L | 16:33 | 19:55 | Scheduled |
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UA4040 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of UA4040 is 91% (Late on average 27 minutes), and the on-time arrival rate is 91% (Early on average 8 minutes).
On-Time Departures
Punctuality
91%
Late on average 27 minutes
Early
9%
On time
82%
30 mins late
0%
60 mins late
0%
90 mins late
9%
Cancelled
0%
On-Time Arrivals
Punctuality
91%
Early on average 8 minutes
Early
91%
On time
0%
30 mins late
0%
60 mins late
0%
90 mins late
9%
Cancelled
0%
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Frequently Asked Questions
What is the current status of flight ua4040?
Flight ua4040 has not departed yet and is currently on schedule. Scheduled departure 16:33, arrival 19:55 (updated Sep 20, 2026).Is flight ua4040 on time today?
Flight ua4040 has not departed yet and is currently on schedule. Scheduled departure is 16:33, with arrival at 19:55. Recheck gate and timing before you head to the airport.Has flight ua4040 departed yet? What is the departure time?
Flight ua4040 is scheduled to depart at 16:33. The latest actual or estimated departure time is 16:33, and the current status is Scheduled (updated Sep 20, 2026).When is flight ua4040 scheduled to arrive?
Flight ua4040 is scheduled to arrive at 19:55. The latest estimated or actual arrival time is 19:20. Status is Scheduled as of Sep 20, 2026.What is the gate information for flight ua4040?
For flight ua4040, the departure terminal is C and the boarding gate is A2. Gate assignments can change at short notice—confirm on airport screens before heading to security.What route does flight ua4040 fly?
Flight ua4040 is operated by United Airlines from Houston (IAH) to Louisville (SDF). Typical flight time is about 2 hours22 minutes; operating days may include Sunday.How can I check real-time status for flight ua4040?
Track flight ua4040 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 ua4040 is delayed or canceled, what should I do?
If ua4040 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 ua4040 departed from Houston?
Flight ua4040 has not departed from Houston (IAH) yet and is currently on schedule for 16:33.What is the seat configuration for flight ua4040?
Flight ua4040 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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Destination Info: Louisville Weather & Time
Mostly clear
|
22°C - 36°C
Expected weather conditions upon arrival
1 hour time difference
Time on arrival: Houston 18:20| Louisville 19:20
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