U4556 Aircraft Details
According to Trip.com real-time data, the U4556 flight flying from Simara to Kathmandu on 5/16/2026 is operated by the aircraft model Alenia ATR 42/72. This aircraft has been in service for 29y, 11m. The aircraft is equipped with Up to 72 seats.

Alenia ATR 42/72
Punctuality (Departure)
13%
Punctuality (Arrival)
0%
Late on average
1 hour41 minutes
Age
29y, 11m
Seats
Up to 72
Distance
--
Economy
Onboard Amenities
Unknown
In-flight entertainment is unavailable
Wi-Fi is unavailable
No power outlets are available
Seating Plan
76 cm
Legroom
43 cm
Seat width
100°
Reclining Angle
--
Seat layout example
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Flight History for U4556
Trip.com historical records show that the last U4556 flight departed on Fri, May 15 from SIF at approximately 13:10. This flight is expected to arrrive in KTM at 14:56.
| Date | Airport | Aircraft Type | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Sun, May 10 | Simara (SIF) | Kathmandu (KTM) | AT75 | 15:17 | 15:34 | Arrived |
| Mon, May 11 | Simara (SIF) | Kathmandu (KTM) | ATR | 13:10 | 14:58 | Scheduled |
| Tue, May 12 | Simara (SIF) | Kathmandu (KTM) | ATR | 13:10 | 14:57 | Scheduled |
| Wed, May 13 | Simara (SIF) | Kathmandu (KTM) | ATR | 13:10 | 14:57 | Scheduled |
| Thu, May 14 | Simara (SIF) | Kathmandu (KTM) | ATR | 13:41 | 15:27 | En route |
| Fri, May 15 | Simara (SIF) | Kathmandu (KTM) | ATR | 13:10 | 14:56 | Scheduled |
| Sat, May 16 | Simara (SIF) | Kathmandu (KTM) | ATR | 13:10 | 14:56 | Scheduled |
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U4556 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of U4556 is 13% (Late on average 1 hour27 minutes), and the on-time arrival rate is 0% (Late on average 1 hour41 minutes).
On-Time Departures
Punctuality
13%
Late on average 1 hour27 minutes
Early
0%
On time
13%
30 mins late
27%
60 mins late
13%
90 mins late
47%
Cancelled
0%
On-Time Arrivals
Punctuality
0%
Late on average 1 hour41 minutes
Early
0%
On time
0%
30 mins late
30%
60 mins late
17%
90 mins late
53%
Cancelled
0%
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Cheap Return Flights to Simara
- Sun, May 31Kathmandu (KTM)Simara (SIF)
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Destination Info: Kathmandu Weather & Time

Partly clear
|
17°C - 29°C
Expected weather conditions upon arrival
0 hour time difference
Time on arrival: Simara 14:56| Kathmandu 14:56
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