United Airlines UA3521 Flight Status
Based on Trip.com’s real-time data, the UA3521 flight operated by United Airlines on Mar 15, 2026 is scheduled to fly from Buffalo (BUF) to New York (EWR). The flight is expected to depart at 06:00 and land at 06:48 .
Sat, Mar 14
Sun, Mar 15
Mon, Mar 16
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Arrived
The flight has arrived 3h 30m late
1h 38m
Check-in Counter
--
Boarding Gate
11
Arrival Gate
84
Baggage
8
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Scheduled
Your flight will depart on time.
1h 38m
Check-in Counter
--
Boarding Gate
11
Arrival Gate
C114
Baggage
8
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Scheduled
Your flight will depart on time.
1h 38m
Check-in Counter
--
Boarding Gate
11
Arrival Gate
--
Baggage
--
Information provided by VariFlightVariFlight. For the latest updates, please refer to airport announcements or consult your airline. If this is not your flight, you can browse more options for flights from Buffalo to New York to find your schedule.
Track the Previous Flight Status: Scheduled
UA3404
|
New York (NYC) 
Buffalo (BUF)
Buffalo (BUF)Scheduled: 23:35
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UA3521 Aircraft Details
Embraer 175
Punctuality (Departure)
88%
Punctuality (Arrival)
88%
Early on average
5 minutes
Age
8y, 7m
Seats
76
Distance
--
Economy
First
Premium Economy
Onboard Amenities
None
Inflight entertainment is available
Wi-Fi is available
No power outlets are available
Seating Plan
79 cm
Legroom
46 cm
Seat width
100°
Reclining Angle
2-2
Seat layout example
Onboard Amenities
Snacks
Inflight entertainment is available
Wi-Fi is available
Power outlet
Seating Plan
94 cm
Legroom
51 cm
Seat width
120°
Reclining Angle
1-2
Seat layout example
Onboard Amenities
None
Inflight entertainment is available
Wi-Fi is available
No power outlets are available
Seating Plan
86 cm
Legroom
46 cm
Seat width
105°
Reclining Angle
2-2
Seat layout example
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Flight History for UA3521
Trip.com historical records show that the last UA3521 flight departed on Sat, Mar 14 from BUF at approximately 10:20. This flight is expected to arrrive in EWR at 11:08.
| Date | Airport | Aircraft Type | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Tue, Mar 10 | Buffalo (BUF) | New York (EWR) | E75L | 06:11 | 07:00 | Arrived |
| Wed, Mar 11 | Buffalo (BUF) | New York (EWR) | E75L | 06:10 | 07:00 | Arrived |
| Thu, Mar 12 | Buffalo (BUF) | New York (EWR) | E75L | -- | -- | Cancelled |
| Fri, Mar 13 | Buffalo (BUF) | New York (EWR) | E75L | 06:17 | 07:05 | Arrived |
| Sat, Mar 14 | Buffalo (BUF) | New York (EWR) | E75L | 10:20 | 11:08 | Arrived |
| Sun, Mar 15 | Buffalo (BUF) | New York (EWR) | E75L | 06:00 | 06:48 | Scheduled |
| Mon, Mar 16 | Buffalo (BUF) | New York (EWR) | E75L | 06:00 | 07:38 | Scheduled |
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UA3521 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of UA3521 is 88% (Late on average 43 minutes), and the on-time arrival rate is 88% (Early on average 5 minutes).
On-Time Departures
Punctuality
88%
Late on average 43 minutes
Early
0%
On time
88%
30 mins late
0%
60 mins late
0%
90 mins late
13%
Cancelled
11%
On-Time Arrivals
Punctuality
88%
Early on average 5 minutes
Early
88%
On time
0%
30 mins late
0%
60 mins late
0%
90 mins late
13%
Cancelled
11%
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- Tue, Apr 28New York (NYC)Buffalo (BUF)
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Destination Info: New York Weather & Time
Clear
|
3°C - 11°C
Expected weather conditions upon arrival
0 hour time difference
Time on arrival: Buffalo 07:38| New York 07:38
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