12 Feb
N121SY
EST. DEPART IN 1d
21:10
San Francisco, CA (SFO)
22:55
Santa Ana, CA (SNA)
01h45m
E75L
598 km
Estimated
21:10
In 2 days
Estimated
22:55
In 2 days
N121SY
UA5440 / UAL5440
EST. DEPART IN 1d
Thursday, February 12 2026
13:10 PST
ON-TIME
Scheduled 13:10
Thursday, February 12 2026
14:55 PST
Scheduled 14:55
Flight info
Airline/Operator
Duration
01h45m
Distance
598 km
Departure Gate
-
Arrival Gate
10
Departure Terminal
3
Arrival Terminal
-
Position Info
Latitude
-
Longitude
-
Altitude
-
Ground Speed
Wind
Air Temperature
Vertical Speed
Heading
-
Squawk
-
Source
-
Station
-
FIR
Aircraft Info
Registration
Mode-S
-
Serial Number
-
Aircraft Age
Owner
Last Activity
3 minutes ago
Last Known Location
In flight - Near Bremerton, WA, United States
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
  • 12 Feb
    UA5715
    EST. DEPART IN 1d
    23:45
    Santa Ana, CA (SNA)
    01:30
    San Francisco, CA (SFO)
    01h45m
    N121SY (E75L)
    598 km
    Estimated
    23:45
    In 2 days
    Estimated
    01:30
    In 2 days
  • 12 Feb
    UA5440
    EST. DEPART IN 1d
    21:10
    San Francisco, CA (SFO)
    22:55
    Santa Ana, CA (SNA)
    01h45m
    N121SY (E75L)
    598 km
    Estimated
    21:10
    In 2 days
    Estimated
    22:55
    In 2 days
  • 12 Feb
    UA5805
    EST. DEPART IN 1d
    18:05
    Santa Ana, CA (SNA)
    19:50
    San Francisco, CA (SFO)
    01h45m
    N121SY (E75L)
    598 km
    Estimated
    18:05
    In 2 days
    Estimated
    19:50
    In 2 days
  • 12 Feb
    UA5937
    EST. DEPART IN 1d
    15:34
    San Francisco, CA (SFO)
    17:17
    Santa Ana, CA (SNA)
    01h43m
    N121SY (E75L)
    598 km
    Estimated
    15:34
    In 2 days
    Estimated
    17:17
    In 2 days
  • 11 Feb
    UA5476
    EST. DEPART IN 1d
    04:20
    Monterey, CA (MRY)
    05:20
    San Francisco, CA (SFO)
    01h00m
    N121SY (E75L)
    124 km
    Estimated
    04:20
    In 1 day
    Estimated
    05:20
    In 1 day
  • 11 Feb
    UA5713
    EST. DEPART IN 1d
    02:25
    San Francisco, CA (SFO)
    03:19
    Monterey, CA (MRY)
    00h54m
    N121SY (E75L)
    124 km
    Estimated
    02:25
    In 1 day
    Estimated
    03:19
    In 1 day
  • 11 Feb
    UA5986
    EST. DEPART IN 19h 29m
    21:50
    Hayden, CO (HDN)
    00:46
    San Francisco, CA (SFO)
    02h56m
    N121SY (E75L)
    1346 km
    Estimated
    21:50
    In 19 hours
    Estimated
    00:46
    In 22 hours
  • 11 Feb
    UA5447
    EST. DEPART IN 16h 14m
    18:35
    San Francisco, CA (SFO)
    21:08
    Hayden, CO (HDN)
    02h33m
    N121SY (E75L)
    1346 km
    Estimated
    18:35
    In 16 hours
    Estimated
    21:08
    In 19 hours
  • 10 Feb
    UA5522
    EST. DEPART IN 1h 23m
    03:44
    Portland, OR (PDX)
    06:47
    San Francisco, CA (SFO)
    02h06m
    N121SY (E75L)
    887 km
    Estimated
    03:44
    In 1 hour
    Estimated
    06:47
    In 4 hours
  • Current
  • 10 Feb
    UA5524
    LANDING IN 30m
    01:02
    San Francisco, CA (SFO)
    02:51
    Portland, OR (PDX)
    01h58m
    N121SY (E75L)
    887 km
    Departed
    01:02
    1 hour ago
    Estimated
    02:51
    In 30 minutes
  • Past
  • 10 Feb
    UA4763
    LANDED 2h 37m AGO
    20:36
    Albuquerque, NM (ABQ)
    23:43
    San Francisco, CA (SFO)
    02h31m
    N121SY (E75L)
    1440 km
    Departed
    20:36
    6 hours ago
    Arrived
    23:43
    3 hours ago
  • 9 Feb
    UA5289
    LANDED 21h 37m AGO
    02:22
    San Francisco, CA (SFO)
    04:43
    Albuquerque, NM (ABQ)
    01h54m
    N121SY (E75L)
    1440 km
    Departed
    02:22
    24 hours ago
    Arrived
    04:43
    22 hours ago
  • 9 Feb
    UA5578
    LANDED 1d AGO
    23:05
    Pasco, WA (PSC)
    01:21
    San Francisco, CA (SFO)
    01h48m
    N121SY (E75L)
    998 km
    Departed
    23:05
    1 day ago
    Arrived
    01:21
    1 day ago
  • 9 Feb
    UA5298
    LANDED 1d AGO
    18:48
    Denver, CO (DEN)
    21:40
    Pasco, WA (PSC)
    02h21m
    N121SY (E75L)
    1370 km
    Departed
    18:48
    1 day ago
    Arrived
    21:40
    1 day ago
  • 9 Feb
    UA5455
    LANDED 1d AGO
    14:27
    Peoria, IL (PIA)
    17:22
    Denver, CO (DEN)
    02h05m
    N121SY (E75L)
    1273 km
    Departed
    14:27
    1 day ago
    Arrived
    17:22
    1 day ago
  • 8 Feb
    UA5600
    LANDED 1d AGO
    00:24
    Denver, CO (DEN)
    02:32
    Peoria, IL (PIA)
    01h38m
    N121SY (E75L)
    1273 km
    Departed
    00:24
    2 days ago
    Arrived
    02:32
    2 days ago
  • 8 Feb
    UA5966
    LANDED 2d AGO
    20:24
    Arcata/Eureka, CA (ACV)
    23:04
    Denver, CO (DEN)
    02h11m
    N121SY (E75L)
    1647 km
    Departed
    20:24
    2 days ago
    Arrived
    23:04
    2 days ago
  • 8 Feb
    UA4708
    LANDED 2d AGO
    17:56
    San Francisco, CA (SFO)
    19:01
    Arcata/Eureka, CA (ACV)
    00h42m
    N121SY (E75L)
    402 km
    Departed
    17:56
    2 days ago
    Arrived
    19:01
    2 days ago
  • 8 Feb
    UA5596
    LANDED 2d AGO
    11:54
    Monterrey (MTY)
    16:03
    San Francisco, CA (SFO)
    03h35m
    N121SY (E75L)
    2475 km
    Departed
    11:54
    3 days ago
    Arrived
    16:03
    2 days ago
  • 7 Feb
    UA5242
    LANDED 2d AGO
    00:58
    Houston, TX (IAH)
    02:42
    Monterrey (MTY)
    01h11m
    N121SY (E75L)
    662 km
    Departed
    00:58
    3 days ago
    Arrived
    02:42
    3 days ago
  • 7 Feb
    UA5586
    LANDED 3d AGO
    20:54
    Omaha, NE (OMA)
    23:13
    Houston, TX (IAH)
    01h52m
    N121SY (E75L)
    1260 km
    Departed
    20:54
    3 days ago
    Arrived
    23:13
    3 days ago
  • 7 Feb
    UA5559
    LANDED 3d AGO
    17:49
    Houston, TX (IAH)
    20:12
    Omaha, NE (OMA)
    01h47m
    N121SY (E75L)
    1260 km
    Departed
    17:49
    3 days ago
    Arrived
    20:12
    3 days ago
  • 7 Feb
    UA5684
    LANDED 3d AGO
    15:23
    Baton Rouge, LA (BTR)
    16:40
    Houston, TX (IAH)
    00h54m
    N121SY (E75L)
    407 km
    Departed
    15:23
    3 days ago
    Arrived
    16:40
    3 days ago
  • 6 Feb
    UA5677
    LANDED 4d AGO
    00:18
    Houston, TX (IAH)
    01:45
    Baton Rouge, LA (BTR)
    00h44m
    N121SY (E75L)
    407 km
    Departed
    00:18
    4 days ago
    Arrived
    01:45
    4 days ago
  • 6 Feb
    UA5478
    LANDED 4d AGO
    20:53
    Omaha, NE (OMA)
    23:06
    Houston, TX (IAH)
    01h54m
    N121SY (E75L)
    1260 km
    Departed
    20:53
    4 days ago
    Arrived
    23:06
    4 days ago
  • 6 Feb
    UA5336
    LANDED 4d AGO
    17:45
    Houston, TX (IAH)
    19:58
    Omaha, NE (OMA)
    01h51m
    N121SY (E75L)
    1260 km
    Departed
    17:45
    4 days ago
    Arrived
    19:58
    4 days ago
  • 6 Feb
    UA5739
    LANDED 4d AGO
    15:31
    Shreveport, LA (SHV)
    16:36
    Houston, TX (IAH)
    00h37m
    N121SY (E75L)
    309 km
    Departed
    15:31
    4 days ago
    Arrived
    16:36
    4 days ago
  • 5 Feb
    UA5879
    LANDED 4d AGO
    00:23
    Denver, CO (DEN)
    02:31
    Shreveport, LA (SHV)
    01h42m
    N121SY (E75L)
    1275 km
    Departed
    00:23
    5 days ago
    Arrived
    02:31
    5 days ago
  • 5 Feb
    UA5441
    LANDED 5d AGO
    21:20
    Great Falls, MT (GTF)
    23:34
    Denver, CO (DEN)
    01h24m
    N121SY (E75L)
    1003 km
    Departed
    21:20
    5 days ago
    Arrived
    23:34
    5 days ago
  • 5 Feb
    UA5253
    LANDED 5d AGO
    18:20
    Denver, CO (DEN)
    20:40
    Great Falls, MT (GTF)
    01h37m
    N121SY (E75L)
    1003 km
    Departed
    18:20
    5 days ago
    Arrived
    20:40
    5 days ago
DateFlightOriginSTDATDDestinationSTADelayStatusDurationReplay
Future
2026 Feb 12Santa Ana, CA (SNA/KSNA)
15:45 PST
San Francisco, CA (SFO/KSFO)
17:30 PST
Estimated
01h45m
2026 Feb 12San Francisco, CA (SFO/KSFO)
13:10 PST
Santa Ana, CA (SNA/KSNA)
14:55 PST
Estimated
01h45m
2026 Feb 12Santa Ana, CA (SNA/KSNA)
10:05 PST
San Francisco, CA (SFO/KSFO)
11:50 PST
Estimated
01h45m
2026 Feb 12San Francisco, CA (SFO/KSFO)
07:34 PST
Santa Ana, CA (SNA/KSNA)
09:17 PST
Estimated
01h43m
2026 Feb 11Monterey, CA (MRY/KMRY)
20:20 PST
San Francisco, CA (SFO/KSFO)
21:20 PST
Estimated
01h00m
2026 Feb 11San Francisco, CA (SFO/KSFO)
18:25 PST
Monterey, CA (MRY/KMRY)
19:19 PST
Estimated
00h54m
2026 Feb 11Hayden, CO (HDN/KHDN)
14:50 MST
San Francisco, CA (SFO/KSFO)
16:46 PST
Estimated
02h56m
2026 Feb 11San Francisco, CA (SFO/KSFO)
10:35 PST
Hayden, CO (HDN/KHDN)
14:08 MST
Estimated
02h33m
2026 Feb 10Portland, OR (PDX/KPDX)
19:44 PST
San Francisco, CA (SFO/KSFO)
21:50 PST
Estimated
02h06m
Current
2026 Feb 10San Francisco, CA (SFO/KSFO)
17:05 PST
17:02 PST
Portland, OR (PDX/KPDX)
19:03 PST
Est. Arrival 18:51 PST
01h58m
Past
2026 Feb 10Albuquerque, NM (ABQ/KABQ)
13:41 MST
13:36 MST
San Francisco, CA (SFO/KSFO)
15:37 PST
Landed 15:43 PST
Time aircraft arrives at gate derived from company/airport information
02h31m
2026 Feb 9San Francisco, CA (SFO/KSFO)
18:27 PST
18:22 PST
Albuquerque, NM (ABQ/KABQ)
21:59 MST
Landed 21:43 MST
Time aircraft arrives at gate derived from company/airport information
01h54m
2026 Feb 9Pasco, WA (PSC/KPSC)
15:18 PST
15:05 PST
San Francisco, CA (SFO/KSFO)
17:32 PST
Landed 17:21 PST
Time aircraft arrives at gate derived from company/airport information
01h48m
2026 Feb 9Denver, CO (DEN/KDEN)
11:50 MST
11:48 MST
Pasco, WA (PSC/KPSC)
13:46 PST
Landed 13:40 PST
Time aircraft arrives at gate derived from company/airport information
02h21m
2026 Feb 9Peoria, IL (PIA/KPIA)
08:35 CST
08:27 CST
Denver, CO (DEN/KDEN)
10:20 MST
Landed 10:22 MST
Time aircraft arrives at gate derived from company/airport information
02h05m
2026 Feb 8Denver, CO (DEN/KDEN)
17:30 MST
17:24 MST
Peoria, IL (PIA/KPIA)
20:47 CST
Landed 20:32 CST
Time aircraft arrives at gate derived from company/airport information
01h38m
2026 Feb 8Arcata/Eureka, CA (ACV/KACV)
12:30 PST
12:24 PST
Denver, CO (DEN/KDEN)
16:18 MST
Landed 16:04 MST
Time aircraft arrives at gate derived from company/airport information
02h11m
2026 Feb 8San Francisco, CA (SFO/KSFO)
10:00 PST
09:56 PST
Arcata/Eureka, CA (ACV/KACV)
11:24 PST
Landed 11:01 PST
Time aircraft arrives at gate derived from company/airport information
00h42m
2026 Feb 8Monterrey (MTY/MMMY)
06:00 CST
05:54 CST
San Francisco, CA (SFO/KSFO)
08:20 PST
Landed 08:03 PST
Time aircraft arrives at gate derived from company/airport information
03h35m
2026 Feb 7Houston, TX (IAH/KIAH)
18:50 CST
18:58 CST
Monterrey (MTY/MMMY)
20:36 CST
Landed 20:42 CST
Time aircraft arrives at gate derived from company/airport information
01h11m
2026 Feb 7Omaha, NE (OMA/KOMA)
15:00 CST
14:54 CST
Houston, TX (IAH/KIAH)
17:38 CST
Landed 17:13 CST
Time aircraft arrives at gate derived from company/airport information
01h52m
2026 Feb 7Houston, TX (IAH/KIAH)
11:55 CST
11:49 CST
Omaha, NE (OMA/KOMA)
14:19 CST
Landed 14:12 CST
Time aircraft arrives at gate derived from company/airport information
01h47m
2026 Feb 7Baton Rouge, LA (BTR/KBTR)
09:30 CST
09:23 CST
Houston, TX (IAH/KIAH)
11:00 CST
Landed 10:40 CST
Time aircraft arrives at gate derived from company/airport information
00h54m
2026 Feb 6Houston, TX (IAH/KIAH)
18:20 CST
18:18 CST
Baton Rouge, LA (BTR/KBTR)
19:33 CST
Landed 19:45 CST
Time aircraft arrives at gate derived from company/airport information
00h44m
2026 Feb 6Omaha, NE (OMA/KOMA)
15:00 CST
14:53 CST
Houston, TX (IAH/KIAH)
17:38 CST
Landed 17:06 CST
Time aircraft arrives at gate derived from company/airport information
01h54m
2026 Feb 6Houston, TX (IAH/KIAH)
11:55 CST
11:45 CST
Omaha, NE (OMA/KOMA)
14:19 CST
Landed 13:58 CST
Time aircraft arrives at gate derived from company/airport information
01h51m
2026 Feb 6Shreveport, LA (SHV/KSHV)
09:30 CST
09:31 CST
Houston, TX (IAH/KIAH)
10:53 CST
Landed 10:36 CST
Time aircraft arrives at gate derived from company/airport information
00h37m
2026 Feb 5Denver, CO (DEN/KDEN)
17:25 MST
17:23 MST
Shreveport, LA (SHV/KSHV)
20:49 CST
Landed 20:31 CST
Time aircraft arrives at gate derived from company/airport information
01h42m
2026 Feb 5Great Falls, MT (GTF/KGTF)
14:29 MST
14:20 MST
Denver, CO (DEN/KDEN)
16:40 MST
Landed 16:34 MST
Time aircraft arrives at gate derived from company/airport information
01h24m
2026 Feb 5Denver, CO (DEN/KDEN)
11:30 MST
11:20 MST
Great Falls, MT (GTF/KGTF)
13:48 MST
Landed 13:40 MST
Time aircraft arrives at gate derived from company/airport information
01h37m

Flight history for N121SY 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.