7 Feb
UA521
LANDED 6d AGO
22:37
St Louis, MO (STL)
00:58
Houston, TX (IAH)
01h42m
N462UA (A320)
1076 km
Departed
22:37
7 days ago
Arrived
00:58
7 days ago
UA521
UAL521
LANDED 6d AGO
Saturday, February 7 2026
16:37 CST
Scheduled 16:42
Saturday, February 7 2026
18:58 CST
ON-TIME
Scheduled 19:10
Flight info
Airline/Operator
Duration
01h42m
Distance
1076 km
Operation Days
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Departure Gate
A14
Arrival Gate
E1
Departure Terminal
1
Arrival Terminal
E
Departure Taxi Time
14m
Arrival Taxi Time
26m
ATC Route
KSTL.BERYY6.LITTR..EDWAH.Q33.SWEUP.GESNR2.KIAH/0034
Position Info
Latitude
-
Longitude
-
Altitude
-
Ground Speed
Wind
Air Temperature
Vertical Speed
Heading
-
Squawk
-
Source
-
Station
-
FIR
Aircraft Info
Aircraft Model
Registration
Mode-S
Serial Number
1272
Aircraft Age
Owner
Last Activity
53 seconds ago
Last Known Location
In flight - Near Markham, United States
Last Flight
Aircraft Type
Nr. Engines
Nr. Seats
Weight Class
Cruising Speed
Engine
Engine Type
Aircraft Category
Registrant Type
Airworthiness Class
Operation Types
Certificate Issue Date
Registration Status
Flight Activity
  • Future
  • 16 Feb
    UA521
    SCHEDULED IN 2d
    00:43
    Houston, TX (IAH)
    04:12
    New York, NY (LGA)
    03h29m
    B738
    2278 km
  • 16 Feb
    UA521
    SCHEDULED IN 2d
    21:02
    Atlanta, GA (ATL)
    23:32
    Houston, TX (IAH)
    02h30m
    B738
    1108 km
  • 15 Feb
    UA521
    EST. DEPART IN 1d
    21:02
    Atlanta, GA (ATL)
    23:32
    Houston, TX (IAH)
    02h30m
    N24212 (B738)
    1108 km
    Estimated
    21:02
    In 1 day
    Estimated
    23:32
    In 1 day
  • 14 Feb
    UA521
    EST. DEPART IN 3h 4m
    21:02
    Atlanta, GA (ATL)
    23:32
    Houston, TX (IAH)
    02h30m
    N24212 (B738)
    1108 km
    Estimated
    21:02
    In 3 hours
    Estimated
    23:32
    In 6 hours
  • Past
  • 13 Feb
    UA521
    LANDED 13h 34m AGO
    00:46
    Houston, TX (IAH)
    04:23
    New York, NY (LGA)
    02h52m
    N77578 (B39M)
    2278 km
    Departed
    00:46
    17 hours ago
    Arrived
    04:23
    14 hours ago
  • 13 Feb
    UA521
    LANDED 18h 24m AGO
    21:05
    Atlanta, GA (ATL)
    23:33
    Houston, TX (IAH)
    01h52m
    N77578 (B39M)
    1108 km
    Departed
    21:05
    21 hours ago
    Arrived
    23:33
    18 hours ago
  • 12 Feb
    UA521
    LANDED 1d AGO
    00:47
    Houston, TX (IAH)
    04:10
    New York, NY (LGA)
    02h57m
    N36207 (B738)
    2278 km
    Departed
    00:47
    2 days ago
    Arrived
    04:10
    2 days ago
  • 12 Feb
    UA521
    LANDED 1d AGO
    20:56
    Atlanta, GA (ATL)
    23:06
    Houston, TX (IAH)
    01h44m
    N18220 (B738)
    1108 km
    Departed
    20:56
    2 days ago
    Arrived
    23:06
    2 days ago
  • 11 Feb
    UA521
    LANDED 2d AGO
    23:11
    Boston, MA (BOS)
    00:27
    Newark, NJ (EWR)
    00h44m
    N12754 (B737)
    322 km
    Departed
    23:11
    3 days ago
    Arrived
    00:27
    3 days ago
  • 10 Feb
    UA521
    LANDED 3d AGO
    23:41
    Boston, MA (BOS)
    01:12
    Newark, NJ (EWR)
    00h52m
    N27733 (B737)
    322 km
    Departed
    23:41
    4 days ago
    Arrived
    01:12
    4 days ago
  • 9 Feb
    UA521
    LANDED 4d AGO
    23:10
    Boston, MA (BOS)
    00:38
    Newark, NJ (EWR)
    00h57m
    N16703 (B737)
    322 km
    Departed
    23:10
    5 days ago
    Arrived
    00:38
    5 days ago
  • 8 Feb
    UA521
    LANDED 5d AGO
    23:20
    Boston, MA (BOS)
    00:45
    Newark, NJ (EWR)
    00h55m
    N16709 (B737)
    322 km
    Departed
    23:20
    6 days ago
    Arrived
    00:45
    6 days ago
  • 7 Feb
    UA521
    LANDED 6d AGO
    22:37
    St Louis, MO (STL)
    00:58
    Houston, TX (IAH)
    01h42m
    N462UA (A320)
    1076 km
    Departed
    22:37
    7 days ago
    Arrived
    00:58
    7 days ago
DateOriginSTDATDDestinationSTAAircraftDelayStatusDurationReplay
Future
2026 Feb 16Houston, TX (IAH/KIAH)
18:43 CST
New York, NY (LGA/KLGA)
23:12 EST
B738
Scheduled
03h29m
2026 Feb 16Atlanta, GA (ATL/KATL)
16:02 EST
Houston, TX (IAH/KIAH)
17:32 CST
B738
Scheduled
02h30m
2026 Feb 15Atlanta, GA (ATL/KATL)
16:02 EST
Houston, TX (IAH/KIAH)
17:32 CST
B738 (N24212)
Estimated
02h30m
2026 Feb 14Atlanta, GA (ATL/KATL)
16:02 EST
Houston, TX (IAH/KIAH)
17:32 CST
B738 (N24212)
Estimated
02h30m
Past
2026 Feb 13Houston, TX (IAH/KIAH)
18:43 CST
18:46 CST
New York, NY (LGA/KLGA)
23:12 EST
B39M (N77578)
Landed 23:23 EST
Time aircraft arrives at gate derived from company/airport information
02h52m
2026 Feb 13Atlanta, GA (ATL/KATL)
16:02 EST
16:05 EST
Houston, TX (IAH/KIAH)
17:32 CST
B39M (N77578)
Landed 17:33 CST
Time aircraft arrives at gate derived from company/airport information
01h52m
2026 Feb 12Houston, TX (IAH/KIAH)
18:43 CST
18:47 CST
New York, NY (LGA/KLGA)
23:12 EST
B738 (N36207)
Landed 23:10 EST
Time aircraft arrives at gate derived from company/airport information
02h57m
2026 Feb 12Atlanta, GA (ATL/KATL)
16:02 EST
15:56 EST
Houston, TX (IAH/KIAH)
17:32 CST
B738 (N18220)
Landed 17:06 CST
Time aircraft arrives at gate derived from company/airport information
01h44m
2026 Feb 11Boston, MA (BOS/KBOS)
18:17 EST
18:11 EST
Newark, NJ (EWR/KEWR)
19:48 EST
B737 (N12754)
Landed 19:27 EST
Time aircraft arrives at gate derived from company/airport information
00h44m
2026 Feb 10Boston, MA (BOS/KBOS)
18:29 EST
18:41 EST
Newark, NJ (EWR/KEWR)
19:59 EST
B737 (N27733)
Landed 20:12 EST
Time aircraft arrives at gate derived from company/airport information
00h52m
2026 Feb 9Boston, MA (BOS/KBOS)
18:17 EST
18:10 EST
Newark, NJ (EWR/KEWR)
19:48 EST
B737 (N16703)
Landed 19:38 EST
Time aircraft arrives at gate derived from company/airport information
00h57m
2026 Feb 8Boston, MA (BOS/KBOS)
18:25 EST
18:20 EST
Newark, NJ (EWR/KEWR)
19:56 EST
B737 (N16709)
Landed 19:45 EST
Time aircraft arrives at gate derived from company/airport information
00h55m
2026 Feb 7St Louis, MO (STL/KSTL)
16:42 CST
16:37 CST
Houston, TX (IAH/KIAH)
19:10 CST
A320 (N462UA)
Landed 18:58 CST
Time aircraft arrives at gate derived from company/airport information
01h42m

Flight history for UA521 is available for a period over 7 days under our Basic subscription. More details here
More airport data is available for purchase. Please check our On Demand API.