Flight

UAL1523

Flight history and live tracking for UAL1523, operated by United Airlines. Recent flights from the PlaneTrack independent receiver network, with departure and arrival times, aircraft used, and a real-time position feed.

Next flight

DateSun 04 Oct 2026
RouteKSEA SEATTLE TACOMA INTERNATIONAL → KIAD WASHINGTON DULLES INTERNATIONAL
Scheduled departure08:25 PDT

Scheduled and estimated times from the FAA SWIM feed, local to each airport.

Route

AirlineUnited Airlines
Typical originKSEA SEATTLE TACOMA INTERNATIONAL
Typical destinationKIAD WASHINGTON DULLES INTERNATIONAL
Distance1,999 nm

Flight history 235 flights since Aug 2025

DateFromToDepArrDurationAircraft
2026-10-02KSEA SEATTLE TACOMA INTERNATIONALKIAD WASHINGTON DULLES INTERNATIONAL08:52 PDT16:01 EDT4h 09mN27419
2026-10-01KSEA SEATTLE TACOMA INTERNATIONALKIAD WASHINGTON DULLES INTERNATIONAL08:43 PDT16:02 EDT4h 19mN57480
2026-09-30KSEA SEATTLE TACOMA INTERNATIONALKIAD WASHINGTON DULLES INTERNATIONAL08:40 PDT15:55 EDT4h 15mN77582
2026-09-29KSEA SEATTLE TACOMA INTERNATIONALKIAD WASHINGTON DULLES INTERNATIONAL08:34 PDT15:48 EDT4h 14mN17441
2026-09-28KSEA SEATTLE TACOMA INTERNATIONALKIAD WASHINGTON DULLES INTERNATIONAL08:43 PDT16:12 EDT4h 29mN37540
2026-09-27KSEA SEATTLE TACOMA INTERNATIONALKIAD WASHINGTON DULLES INTERNATIONAL08:55 PDT16:32 EDT4h 37mN17593
2026-09-26KSEA SEATTLE TACOMA INTERNATIONALKIAD WASHINGTON DULLES INTERNATIONAL08:44 PDT16:12 EDT4h 28mN17441
2026-09-25KSEA SEATTLE TACOMA INTERNATIONALKIAD WASHINGTON DULLES INTERNATIONAL08:40 PDT16:16 EDT4h 36mN17427
2026-09-24KSEAKIAD08:37 PDT16:30 EDT4h 52mN47453
2026-09-23KSEAKIAD08:09 PDT16:10 EDT5h 00mN17468
2026-09-22KSEAKIAD08:45 PDT17:06 EDT5h 20mA12A7B
2026-09-21KBFIKIAD08:07 PDT16:02 EDT4h 54mAA7B4A
2026-09-20partialKIAD?11:19 EDTN37551
2026-09-18KSEAKIAD08:07 PDT16:08 EDT5h 00mN37542
2026-09-17KSEAKIAD08:13 PDT15:56 EDT4h 42mA12B32
2026-09-16KBFIKIAD08:20 PDT15:52 EDT4h 31mA5CF41
2026-09-15partialKIAD?12:38 EDTN77544
2026-09-14KSEAKIAD08:25 PDT15:54 EDT4h 28mN37504
2026-09-13partialKIAD?11:10 EDTA12B51
2026-09-12partialKIAD?11:14 EDTA2B8C2
2026-09-11KSEAKIAD08:06 PDT15:48 EDT4h 41mN37502
2026-09-10partialKIAD?11:15 EDTN37548
2026-09-09KSEAKIAD08:18 PDT15:42 EDT4h 23mAA7F46
2026-09-08KSEAKIAD08:24 PDT15:56 EDT4h 31mA445C7
2026-09-07partialKIAD?13:52 EDTA126ED
2026-09-06KSEAKIAD08:22 PDT15:46 EDT4h 23mAA7F4E
2026-09-05KSEAKIAD08:13 PDT15:52 EDT4h 38mA2B89E
2026-09-04partialKIAD?11:10 EDTN17437
2026-09-03partialKIAD?11:11 EDTN17418
2026-09-03estimated??14:05Z14:26Z0h 20mN17418
Earlier flights (205) - back to 2025-08-15
DateFromToDepArrDurationAircraft
2026-09-01KSEAKIAD08:15 PDT15:44 EDT4h 28mA2B83B
2026-08-31partialKIAD?11:46 EDTN77552
2026-08-30partialKIAD?11:11 EDTA12B0A
2026-08-29KSEAKIAD08:15 PDT15:52 EDT4h 36mA12B0A
2026-08-28partialKIAD?10:22 EDTA75FDF
2026-08-27KSEAKIAD08:54 PDT16:26 EDT4h 31mA75FDF
2026-08-25partialKIAD?11:00 EDTA12B09
2026-08-24partialKIAD?11:11 EDTN37534
2026-08-23partialKIAD?11:15 EDTA5D319
2026-08-22KSEAKIAD08:19 PDT16:06 EDT4h 46mA12B2B
2026-08-21KSEAKIAD08:40 PDT16:02 EDT4h 21mN17564
2026-08-20KSEAKIAD08:23 PDT15:58 EDT4h 34mN47446
2026-08-19partialKIAD?11:10 EDTN17459
2026-08-18partialKIAD?14:29 EDTN37545
2026-08-17partialKIAD?11:09 EDTN17421
2026-08-16partialKIAD?11:12 EDTN37440
2026-08-15partialKIAD?11:12 EDTN34282
2026-08-14KSEAKIAD08:12 PDT15:40 EDT4h 27mN17432
2026-08-13KSEAKIAD08:07 PDT15:44 EDT4h 37mN47462
2026-08-12KSEAKIAD08:13 PDT18:23 EDT7h 10mN27546
2026-08-11partialKIAD?14:55 EDTN77571
2026-07-23estimated??00:00Z00:58Z0h 58mA12777
2026-07-22estimated??13:35Z23:58Z10h 23mA12799
2026-07-22partialKIAD?02:52 EDTA12799
2026-07-21estimated??00:00Z01:16Z1h 15mA441AC
2026-07-20partial??00:22ZA44211
2026-07-19partialKIAD?23:37 EDTA5CF1B
2026-07-18estimated??00:00Z00:34Z0h 33mA126E7
2026-07-17partial??00:00ZN17272
2026-07-16partial??00:00ZA12799
2026-07-15partial??00:00ZA12778
2026-07-14partial??00:00ZN17279
2026-07-13estimated??07:42Z23:58Z16h 15mN17279
2026-07-13estimatedKCHS?20:00 EDT01:10Z1h 10mN17279
2026-07-12estimated??07:53Z23:58Z16h 05mA5CC3C
2026-07-12estimated??00:00Z00:44Z0h 44mA5CC3C
2026-07-11partialKLHW?20:00 EDTA5CF3F
2026-07-10partialKIAD?21:36 EDTN17272
2026-07-09estimated??00:00Z00:20Z0h 19mA44213
2026-07-08partial??00:02ZA126E6
2026-07-07estimated??10:19Z23:58Z13h 38mN27266
2026-07-07partialKIAD?23:11 EDTN27266
2026-07-06partialKIAD?23:56 EDTN27266
2026-07-05partialKIAD?22:08 EDTA1270A
2026-07-03partialKLHW?20:00 EDTN17265
2026-07-02partialKLHW?20:00 EDTN27266
2026-07-01partialMYGW?20:00 EDTA12732
2026-06-30partialKBFM?19:00 CDTN27268
2026-06-29partialKGNV?20:00 EDTN47288
2026-06-28estimated??07:43Z23:58Z16h 14mN17262
2026-06-28estimated??00:00Z00:30Z0h 29mN17262
2026-06-27partialKLSF?20:00 EDTA44258
2026-06-26partial??00:00ZA1270A
2026-06-25partialKIAD?20:00 EDTN17264
2026-06-24partial??00:00ZN17296
2026-06-23estimated?KIAH07:46Z18:58 CDT16h 11mA5CF3F
2026-06-23partialKIAD?20:29 EDTA5CF3F
2026-06-22estimated??00:00Z00:44Z0h 44mA4418C
2026-06-21partial??00:00ZA126ED
2026-06-20estimated??07:52Z23:58Z16h 05mA44258
2026-06-20partialKIAD?21:08 EDTA44258
2026-06-19partialKIAD?21:29 EDTA2B47F
2026-06-18estimated??00:00Z00:46Z0h 45mN17296
2026-06-17partial??00:00ZA12797
2026-06-16partial??00:00ZA5CF3F
2026-06-15partial??00:00ZN47293
2026-06-14partialKBFM?19:00 CDTA8E9FD
2026-06-13estimated??09:13Z23:58Z14h 44mN76522
2026-06-13partialKIAD?22:18 EDTN76522
2026-06-12estimated??00:00Z07:54Z7h 53mN17264
2026-06-11estimatedKADW?18:40 EDT23:58Z1h 17mN17264
2026-05-29estimatedKLHW?20:00 EDT07:50Z7h 50mA12758
2026-05-28partialKNYG?20:00 EDTA1270F
2026-05-27partialKIAD?20:00 EDTN37295
2026-05-26partialKVRB?20:00 EDTA127BB
2026-05-25estimated?KSNA07:45Z16:58 PDT16h 13mA44212
2026-05-24partial??00:00ZN27268
2026-05-23partial??00:00ZN17289
2026-05-22partial??00:00ZN27253
2026-05-21partialKIAD?18:54 EDTN27253
2026-05-19partialKIAD?18:37 EDTN27292
2026-05-10estimated??00:00Z08:26Z8h 26mN27273
2026-05-09partialKIAD?18:19 EDTN27273
2026-05-03estimatedKNMM?19:00 CDT05:30Z5h 30mN17264
2026-05-02partialKIAD?18:10 EDTN17264
2026-04-27partialKIAD?20:00 EDTN17254
2026-04-26estimated??07:57Z23:58Z16h 00mA441AB
2026-04-26estimated??00:00Z00:42Z0h 42mA441AB
2026-04-25partial??00:00ZA12797
2026-04-24partial??00:00ZA44257
2026-04-23partialKIAD?18:14 EDTA44257
2026-04-20estimated??07:55Z23:58Z16h 03mA44258
2026-04-20estimated??00:00Z00:30Z0h 29mA44258
2026-04-19estimated??07:57Z23:58Z16h 00mA44211
2026-04-19estimated??00:00Z00:20Z0h 20mA44211
2026-04-18partial??00:00ZA12711
2026-04-17estimated?KRSW07:52Z19:58 EDT16h 05mA126E8
2026-04-17estimated??00:00Z00:32Z0h 32mA126E8
2026-04-16partialKIAD?18:29 EDTA126E8
2026-04-13partialKIAD?18:04 EDTA4418D
2026-04-12partial??00:00ZN17331
2026-04-11partial??00:16ZA4423A
2026-04-10estimated??23:38Z23:58Z0h 20mA4423A
2026-04-06estimated??00:00Z00:50Z0h 49mA12712
2026-04-05partial??00:00ZA126C9
2026-04-04estimated??07:37Z23:58Z16h 20mA126CC
2026-04-04estimated??00:00Z00:20Z0h 20mA126CC
2026-04-03estimated??07:48Z23:58Z16h 09mA44166
2026-04-02partialKIAD?18:09 EDTA44166
2026-03-31partialKIAD?00:56 EDTA5CF82
2026-03-29partialKIAD?18:22 EDTA126CC
2026-03-28estimated?KIAD21:58Z19:54 EDT1h 55mA126CC
2026-03-15estimated??08:03Z23:58Z15h 55mN17285
2026-03-15estimated??00:00Z00:22Z0h 22mN17285
2026-03-14partialKIAD?21:14 EDTN17272
2026-03-11partialKIAD?17:40 EDTA1277B
2026-03-09partial??00:00ZA12797
2026-03-08partial??00:01ZA4423A
2026-03-07partial??00:00ZA441AB
2026-03-06partialKIAD?17:39 ESTA441AB
2026-03-01partialKIAD?20:33 ESTA2B47F
2026-02-28partialKIAD?17:58 ESTA2B47F
2026-02-22estimated??00:02Z01:12Z1h 09mA12711
2026-02-21partialKIAD?17:38 ESTA12711
2026-02-15estimated??00:02Z01:16Z1h 14mA12733
2026-02-14partialKIAD?18:00 ESTA12733
2026-02-07partialKIAD?17:52 ESTN37295
2026-02-01estimated??00:00Z01:14Z1h 14mA126ED
2026-01-31partialKIAD?17:41 ESTA126ED
2026-01-25estimated??00:00Z01:52Z1h 52mA44257
2026-01-24partialKIAD?18:25 ESTA44257
2026-01-17partialKIAD?18:02 ESTN47275
2026-01-06estimated??00:00Z02:04Z2h 04mN27261
2026-01-05partial??00:00ZA12756
2026-01-04partial??00:00ZA12753
2026-01-03partial??00:00ZA12756
2026-01-02partial??00:02ZA1272F
2026-01-01partial??00:02ZN27270
2025-12-31partial??00:00ZA44257
2025-12-30partial??00:02ZN47280
2025-12-29partial??00:00ZN27253
2025-12-28partial??00:00ZA12799
2025-12-27partial??00:00ZA44258
2025-12-26partial??00:01ZN57299
2025-12-25partial??00:00ZN27277
2025-12-24partial??00:00ZA4418D
2025-12-23partial??00:00ZN17262
2025-12-22partial??00:00ZN57286
2025-12-21partialMYGW?19:02 ESTA2B416
2025-12-20partialKIAD?19:00 ESTA5CF66
2025-12-19partialKIAD?19:00 ESTN27263
2025-12-18partialMYGW?19:00 ESTA4418C
2025-12-17partialMYGW?19:00 ESTA441F5
2025-12-16partial??00:00ZA44258
2025-12-15partial??00:00ZA5CF19
2025-12-14partial??00:00ZA44238
2025-12-13partial??00:00ZN17265
2025-12-12partial??00:00ZA12755
2025-12-11partial??00:00ZN17300
2025-12-10partial??00:00ZA126C9
2025-12-09partialKIAD?18:30 ESTA126C9
2025-12-02partialKIAD?20:35 ESTA2B45B
2025-11-28estimated??00:00Z01:32Z1h 32mN47275
2025-11-27partial??00:00ZN17331
2025-11-26partialKIAD?18:17 ESTN17331
2025-10-30estimated??00:00Z00:54Z0h 54mN27251
2025-10-29estimated??07:50Z23:58Z16h 07mN37257
2025-10-29estimated??00:00Z00:22Z0h 22mN37257
2025-10-28partial??00:00ZA44258
2025-10-27partial??00:00ZN27269
2025-10-26partialKIAD?18:42 EDTN27269
2025-10-25estimatedKSFO?09:47 PDT17:08Z0h 20mN17289
2025-10-24estimated??03:38Z16:38Z12h 59mN17272
2025-10-22estimated??15:57Z20:56Z4h 59mN27269
2025-10-21estimatedKSFO?09:29 PDT16:52Z0h 22mN37278
2025-10-20estimatedKSFO?09:33 PDT16:58Z0h 24mA126EB
2025-10-15estimatedKSFO?09:02 PDT16:48Z0h 46mA441EF
2025-10-14KSFOPHOG09:15 PDT11:28 HST5h 13mA126EC
2025-10-13estimatedKSFO?08:57 PDT21:08Z5h 10mA1270A
2025-10-07KSFOPHOG09:11 PDT11:18 HST5h 06mA12796
2025-10-06KSFOPHOG09:22 PDT11:24 HST5h 01mN17301
2025-10-05estimated?PHOG14:47Z11:12 HST6h 24mA12709
2025-10-04estimated??13:40Z23:58Z10h 17mA5CF66
2025-10-01KSFO San Francisco InternationalPHOG09:19 PDT11:10 HST4h 51mA12777
2025-09-30KSFO San Francisco InternationalPHOG09:30 PDT11:18 HST4h 48mA126E8
2025-09-29KSFO San Francisco InternationalPHOG09:23 PDT10:57 HST4h 34mA5CF19
2025-09-28KSFO San Francisco InternationalPHHN09:13 PDT11:04 HST4h 51mA5CC13
2025-09-27KSFO San Francisco International?09:27 PDT21:08Z4h 41mA12796
2025-09-26KSFO San Francisco InternationalPHHN09:17 PDT11:04 HST4h 47mA1242D
2025-09-25KSFO San Francisco InternationalPHOG09:15 PDT11:10 HST4h 55mA44212
2025-09-24KSFO San Francisco International?09:33 PDT21:08Z4h 34mA126C5
2025-09-23KSFO San Francisco International?09:28 PDT20:59Z4h 31mA126EB
2025-09-22KSFO San Francisco International?09:57 PDT21:17Z4h 20mA44187
2025-09-21KSFO San Francisco International?09:23 PDT20:46Z4h 22mA2B154
2025-09-20KSFO San Francisco International?09:56 PDT21:04Z4h 07mA2B12E
2025-09-19KSFO San Francisco International?09:58 PDT21:15Z4h 16mA441AC
2025-09-18KSFO San Francisco InternationalPHOG10:03 PDT11:53 HST4h 49mA12711
2025-08-25estimated??01:48Z03:09Z1h 20mN17300
2025-08-24KSFO?12:20 PDT23:57Z4h 37mN17300
2025-08-23estimatedKSFO?22:35 PDT16:52Z11h 16mA12798
2025-08-21estimatedKSFOPHOG23:55 PDT11:26 HST14h 31mN17294
2025-08-19partialKIAD?20:00 EDTA126E8
2025-08-17partialKIAD?20:00 EDTA44166
2025-08-16partial??00:00ZN17279
2025-08-15partialKIAD?20:43 EDTA2B45B

Times are local to each airport. Hover for UTC. Flights marked estimated were completed with route prediction or partial coverage; partial records have a confirmed departure but no reliable arrival fix.

Open the live map Full history CSV API access
Follow this flight

Get an email when UAL1523 flies + if it runs late.

Data access

Live positions and 365-day history for this flight are available through the PlaneTrack API (commercial use from $29/month) and as one-off CSV extracts from our archive (from $9.99, with a free one-day sample). Questions: [email protected]