Buddha Air
U4551 Flight status
According to Trip.com real-time data, the U4551 flight operated by Buddha Air on Sep 6, 2026, scheduled to fly from Kathmandu (KTM) to Simara (SIF), has a change in flight status: the original departure time has been delayed, and the new departure time is 07:35 , with a new arrival time of 08:27 . Trip.com will continue to provide the latest updates on this flight.
Sat, Sep 5
Sun, Sep 6
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Arrived
The flight has arrived 28m late
15m
Check-in Counter
--
Boarding Gate
4
Arrival Gate
--
Baggage
--
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Delayed
Your flight is about 0m late
15m
Check-in Counter
--
Boarding Gate
4
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 Kathmandu to Simara or track other flights with our flight status tracker.
U4551 Aircraft Details
According to Trip.com real-time data, the U4551 flight from Kathmandu to Simara on 9/6/2026 is operated using the aircraft model Alenia ATR 42/72. This aircraft has been in service for 19y, 7m. The aircraft has Up to 72 seats.
Alenia ATR 42/72
Punctuality (Departure)
83
%
Punctuality (Arrival)
60
%
Late on average
35 minutes
Age
19y, 7m
Seats
Up to 72
Flight Distance
--
Economy
In-Flight Services
None
In-flight entertainment is unavailable
Wi-Fi is unavailable
No power outlets are available
Seat Information
76 cm
Legroom
43 cm
Seat width
100°
Reclining Angle
--
Seat layout example
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Flight History for U4551
Trip.com historical records show that the last U4551 flight departed on Sat, Sep 5 from KTM at approximately 07:59. This flight is expected to arrrive in SIF at 08:18.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Mon, Aug 31 | Kathmandu (KTM) | Simara (SIF) | ATR | 07:35 | 08:27 | Delayed |
| Tue, Sep 1 | Kathmandu (KTM) | Simara (SIF) | ATR | 07:35 | 08:27 | Delayed |
| Wed, Sep 2 | Kathmandu (KTM) | Simara (SIF) | ATR | 07:35 | 08:27 | Delayed |
| Thu, Sep 3 | Kathmandu (KTM) | Simara (SIF) | AT75 | 08:00 | 08:21 | Arrived |
| Fri, Sep 4 | Kathmandu (KTM) | Simara (SIF) | ATR | 07:35 | 08:27 | Delayed |
| Sat, Sep 5 | Kathmandu (KTM) | Simara (SIF) | AT75 | 07:59 | 08:18 | Arrived |
| Sun, Sep 6 | Kathmandu (KTM) | Simara (SIF) | ATR | 07:35 | 08:27 | Delayed |
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U4551 On-Time Performance
Based on the average performance of this flight over the last 30 trips, the on-time departure rate of U4551 is 83% (Late on average 28 minutes), and the on-time arrival rate is 60% (Late on average 35 minutes).
On-Time Departures
Punctuality
83
%
Late on average
28 minutes
Early
0
%
On time
83
%
30 mins late
13
%
60 mins late
0
%
90 mins late
3
%
Cancelled
1
%
On-Time Arrivals
Punctuality
60
%
Late on average
35 minutes
Early
0
%
On time
60
%
30 mins late
33
%
60 mins late
3
%
90 mins late
3
%
Cancelled
1
%
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Flight FAQs
-
Has flight u4551 departed yet? What is the departure time?
Flight u4551 is scheduled to depart at 07:35. The latest actual or estimated departure time is 07:35, and the current status is Delayed (updated Sep 6, 2026). -
When is flight u4551 scheduled to arrive?
Flight u4551 is scheduled to arrive at 07:50. The latest estimated or actual arrival time is 08:27. Status is Delayed as of Sep 6, 2026. -
What is the gate information for flight u4551?
For flight u4551, the departure terminal is D and the boarding gate is 4. Gate assignments can change at short notice—confirm on airport screens before heading to security. -
What route does flight u4551 fly?
Flight u4551 is operated by Buddha Air from Kathmandu (KTM) to Simara (SIF). Typical flight time is about 15 minutes; operating days may include Sunday. -
How can I check real-time status for flight u4551?
Track flight u4551 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 u4551 is delayed or canceled, what should I do?
If u4551 is delayed or canceled, first confirm the latest status here (Delayed, updated Sep 6, 2026). Contact Buddha Air or your booking channel for rebooking or refund options, and check Trip.com Manage Booking if you booked on Trip.com.
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