Flight
UAL639
Flight history and live tracking for UAL639, 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
| Date | Sun 23 Aug 2026 |
| Route | KRNO RENO TAHOE INTERNATIONAL → KSFO SAN FRANCISCO INTERNATIONAL |
| Scheduled departure | 18:51 PDT |
| Estimated departure | 18:51 PDT on time |
| Estimated arrival | 20:10 PDT |
| Aircraft | N496UA A320 |
| Also scheduled | Mon 24 Aug 18:51 PDT |
Scheduled and estimated times from the FAA SWIM feed, local to each airport.
Route
| Airline | United Airlines |
| Observed route | KNXX → KLAX |
Flight history 123 flights since Sep 2025
| Date | From | To | Dep | Arr | Duration | Aircraft |
|---|---|---|---|---|---|---|
| 2026-08-22 | KRNO RENO TAHOE INTERNATIONAL | KSFO SAN FRANCISCO INTERNATIONAL | 20:16 PDT | 21:05 PDT | 0h 49m | N488UA |
| 2026-08-21 | KRNO RENO TAHOE INTERNATIONAL | KSFO SAN FRANCISCO INTERNATIONAL | 19:45 PDT | 20:31 PDT | 0h 46m | N834UA |
| 2026-08-20estimated | ? | ? | 02:50Z | 03:44Z | 0h 53m | N454UA |
| 2026-08-19estimated | ? | ? | 02:40Z | 03:32Z | 0h 52m | N33289 |
| 2026-08-17estimated | ? | ? | 02:35Z | 10:51Z | 8h 15m | N435UA |
| 2026-08-16estimated | ? | ? | 02:41Z | 14:24Z | 11h 43m | N495UA |
| 2026-08-15estimated | ? | ? | 04:47Z | 05:46Z | 0h 58m | N493UA |
| 2026-08-14estimated | ? | ? | 03:52Z | 04:42Z | 0h 49m | N495UA |
| 2026-08-13estimated | ? | ? | 02:52Z | 03:48Z | 0h 55m | N445UA |
| 2026-08-12estimated | ? | ? | 02:10Z | 03:04Z | 0h 53m | N37420 |
Earlier flights (113) - back to 2025-09-19
| Date | From | To | Dep | Arr | Duration | Aircraft |
|---|---|---|---|---|---|---|
| 2026-07-23estimated | ? | ? | 00:00Z | 06:12Z | 6h 12m | N37530 |
| 2026-07-22partial | KBOS | ? | 22:27 EDT | A5D2D4 | ||
| 2026-07-21estimated | ? | ? | 00:00Z | 04:54Z | 4h 53m | AA7F4E |
| 2026-07-20partial | ? | ? | 00:00Z | A12AA0 | ||
| 2026-07-19partial | ? | ? | 00:00Z | A75FBF | ||
| 2026-07-18partial | ? | ? | 00:00Z | N17529 | ||
| 2026-07-17partial | ? | ? | 00:00Z | N37513 | ||
| 2026-07-16partial | ? | ? | 00:00Z | AA7F24 | ||
| 2026-07-15partial | ? | ? | 00:00Z | A5D2D4 | ||
| 2026-07-14partial | CYHM | ? | 20:00 EDT | N37531 | ||
| 2026-07-13partial | KBOS | ? | 20:11 EDT | A12AC3 | ||
| 2026-07-12estimated | KNXX | KLAX | 20:00 EDT | 23:18 PDT | 6h 18m | A449A4 |
| 2026-07-11partial | KBOS | ? | 20:21 EDT | A449CB | ||
| 2026-07-10 | KBOS | KLAX | 20:37 EDT | 07:04 PDT | 13h 27m | A445A4 |
| 2026-07-09estimated | KROC | KHHR | 20:00 EDT | 22:58 PDT | 5h 58m | AA7F46 |
| 2026-07-08partial | KROC | ? | 20:02 EDT | A5D6F9 | ||
| 2026-07-07partial | CYTZ | ? | 20:00 EDT | N37507 | ||
| 2026-07-06partial | KBOS | ? | 20:00 EDT | N27539 | ||
| 2026-07-05partial | KBOS | ? | 19:09 EDT | N27539 | ||
| 2026-07-04partial | CYTZ | ? | 20:00 EDT | AA7F06 | ||
| 2026-07-03partial | KMUI | ? | 20:00 EDT | A12AE6 | ||
| 2026-07-02partial | KIAD | ? | 20:00 EDT | A2B7F5 | ||
| 2026-07-01partial | KIPT | ? | 20:00 EDT | A12AE6 | ||
| 2026-06-30partial | KBOS | ? | 20:00 EDT | A12AE6 | ||
| 2026-06-29partial | KMDT | ? | 20:00 EDT | AA7F46 | ||
| 2026-06-28partial | CYXU | ? | 20:00 EDT | A12A7B | ||
| 2026-06-27partial | CYXU | ? | 20:00 EDT | N17529 | ||
| 2026-06-26partial | KEKN | ? | 20:00 EDT | N17529 | ||
| 2026-06-25partial | KCMH | ? | 20:00 EDT | A449CB | ||
| 2026-06-24partial | KCEF | ? | 20:00 EDT | N37504 | ||
| 2026-06-23partial | KALB | ? | 20:00 EDT | N37525 | ||
| 2026-06-22partial | KMDT | ? | 20:00 EDT | A12F09 | ||
| 2026-06-21partial | CYKF | ? | 20:00 EDT | A12AA1 | ||
| 2026-06-20partial | CYQA | ? | 20:00 EDT | N37525 | ||
| 2026-06-19partial | KBOS | ? | 20:15 EDT | N27519 | ||
| 2026-06-18estimated | KILG | KLAX | 20:00 EDT | 23:22 PDT | 6h 22m | N37510 |
| 2026-06-17partial | KBOS | ? | 20:00 EDT | AA7F06 | ||
| 2026-06-16partial | CYKZ | ? | 20:00 EDT | N27519 | ||
| 2026-06-15partial | KHPN | ? | 20:00 EDT | AA7EC3 | ||
| 2026-06-14partial | KBOS | ? | 20:04 EDT | A449A8 | ||
| 2026-06-13estimated | KIAG | KHHR | 20:00 EDT | 22:08 PDT | 5h 08m | A445AB |
| 2026-06-12partial | CYGK | ? | 20:00 EDT | AC0831 | ||
| 2026-06-11estimated | KBOS | CYGK | 19:12 EDT | 19:58 EDT | 0h 46m | AC0831 |
| 2026-05-29estimated | CYXU | KHHR | 20:00 EDT | 22:02 PDT | 5h 02m | A12AEA |
| 2026-05-28partial | CYKF | ? | 20:00 EDT | A449A4 | ||
| 2026-05-27partial | KSWF | ? | 20:00 EDT | AA7AA0 | ||
| 2026-05-26partial | KALB | ? | 20:00 EDT | A12F71 | ||
| 2026-05-25partial | KSWF | ? | 20:00 EDT | A12B0E | ||
| 2026-05-24partial | KBUF | ? | 20:00 EDT | N37522 | ||
| 2026-05-23partial | CYXU | ? | 20:00 EDT | N61887 | ||
| 2026-05-22partial | ? | ? | 00:00Z | N37534 | ||
| 2026-05-21partial | CYKF | ? | 20:00 EDT | A12F71 | ||
| 2026-05-20partial | KONT | ? | 17:03 PDT | A12F6D | ||
| 2026-05-19partial | KONT | ? | 18:22 PDT | N37528 | ||
| 2026-05-12partial | KPHN | ? | 20:00 EDT | N27539 | ||
| 2026-05-11partial | CYXU | ? | 20:00 EDT | A12AA5 | ||
| 2026-05-10partial | CYPQ | ? | 20:00 EDT | A12AE9 | ||
| 2026-05-09partial | KALB | ? | 20:00 EDT | A449A1 | ||
| 2026-05-08partial | CYHM | ? | 20:00 EDT | A12F72 | ||
| 2026-05-07partial | KBOS | ? | 20:00 EDT | A5D6F9 | ||
| 2026-05-06partial | ? | ? | 00:00Z | N67501 | ||
| 2026-05-05partial | KEKN | ? | 20:00 EDT | A12B0E | ||
| 2026-05-04partial | CYXU | ? | 20:00 EDT | N37555 | ||
| 2026-05-03partial | KPHN | ? | 20:00 EDT | A12A80 | ||
| 2026-05-02partial | CYKZ | ? | 20:00 EDT | A12F4C | ||
| 2026-05-01partial | KBOS | ? | 21:44 EDT | A12B2B | ||
| 2026-04-30estimated | CYVV | KHHR | 20:00 EDT | 21:40 PDT | 4h 40m | A12B0A |
| 2026-04-29 | KBOS | CYVV | 18:44 EDT | 19:58 EDT | 1h 13m | A12B0A |
| 2026-04-28partial | ? | ? | 00:00Z | A449A2 | ||
| 2026-04-27partial | CYXU | ? | 20:00 EDT | A12AC8 | ||
| 2026-04-26partial | KOSC | ? | 20:00 EDT | A12B0A | ||
| 2026-04-25partial | KSKY | ? | 20:00 EDT | N37541 | ||
| 2026-04-24partial | ? | ? | 00:00Z | A12AC3 | ||
| 2026-04-23partial | ? | ? | 00:00Z | A2BC5A | ||
| 2026-04-22estimated | ? | ? | 10:10Z | 23:58Z | 13h 47m | A12F08 |
| 2026-04-21partial | ? | ? | 00:00Z | A12AA0 | ||
| 2026-04-20partial | ? | ? | 00:28Z | N77552 | ||
| 2026-04-19estimated | ? | ? | 00:00Z | 07:30Z | 7h 30m | N37541 |
| 2026-04-18partial | ? | ? | 00:00Z | A12AA1 | ||
| 2026-04-17partial | ? | ? | 00:00Z | A445AD | ||
| 2026-04-16partial | ? | ? | 00:00Z | N37536 | ||
| 2026-04-15estimated | ? | ? | 12:52Z | 23:58Z | 11h 05m | A449A4 |
| 2026-04-14partial | ? | ? | 00:00Z | N17529 | ||
| 2026-04-13partial | ? | ? | 00:00Z | AA7AA0 | ||
| 2026-04-12partial | ? | ? | 00:00Z | N47512 | ||
| 2026-04-11partial | ? | ? | 00:16Z | A75FBF | ||
| 2026-04-10estimated | ? | ? | 23:38Z | 23:59Z | 0h 20m | A75FBF |
| 2026-04-06estimated | ? | ? | 00:00Z | 04:40Z | 4h 40m | N37516 |
| 2026-04-05partial | ? | ? | 00:00Z | A12AA4 | ||
| 2026-04-04partial | ? | ? | 00:00Z | N37516 | ||
| 2026-04-03partial | ? | ? | 00:00Z | N37551 | ||
| 2026-04-02partial | ? | ? | 00:00Z | AD953C | ||
| 2026-04-01estimated | ? | ? | 10:04Z | 23:58Z | 13h 53m | N27526 |
| 2026-03-31partial | ? | ? | 00:00Z | AA7F4E | ||
| 2026-03-30partial | ? | ? | 00:00Z | A12F75 | ||
| 2026-03-29partial | KBOS | ? | 18:37 EDT | A12F75 | ||
| 2026-03-16estimated | ? | ? | 00:00Z | 05:58Z | 5h 57m | N17139 |
| 2026-03-14estimated | ? | ? | 00:00Z | 06:48Z | 6h 48m | A5D713 |
| 2026-03-13partial | ? | ? | 00:00Z | N27519 | ||
| 2026-02-16 | ? | KFMY | 00:02Z | 23:06 EST | 4h 04m | A9D5A2 |
| 2026-02-04 | KRIC | ? | 10:14 EST | 17:39Z | 2h 24m | A94B29 |
| 2026-02-03 | KRSW | ? | 08:45 EST | 16:03Z | 2h 17m | A12710 |
| 2026-01-28 | KRSW | ? | 08:18 EST | 14:52Z | 1h 34m | A2B135 |
| 2026-01-27 | KDEN Denver International | ? | 11:32 MST | 20:07Z | 1h 35m | AAA616 |
| 2025-12-16 | KRSW | KTUL | 08:04 EST | 09:30 CST | 2h 25m | A41743 |
| 2025-12-10 | KRSW | ? | 08:02 EST | 14:18Z | 1h 16m | A14AD4 |
| 2025-10-02 | KDEN Denver International | ? | 11:24 MDT | 18:30Z | 1h 05m | A9DCE9 |
| 2025-09-24 | KMSN Dane County Regional | ? | 09:00 CDT | 15:05Z | 1h 05m | A12E80 |
| 2025-09-23 | KMSN Dane County Regional | ? | 08:46 CDT | 14:53Z | 1h 07m | A4493E |
| 2025-09-22 | KMSN Dane County Regional | ? | 09:02 CDT | 15:08Z | 1h 05m | A12A7B |
| 2025-09-21 | KMSN Dane County Regional | ? | 08:42 CDT | 14:43Z | 1h 00m | A4495C |
| 2025-09-20 | KMSN Dane County Regional | ? | 09:05 CDT | 15:07Z | 1h 01m | A12F2A |
| 2025-09-19 | KMSN Dane County Regional | ? | 09:05 CDT | 15:08Z | 1h 03m | A12F72 |
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.
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 own receiver network archive. Questions: [email protected]