YAFT.LIVE

UAL399

KEF → IAD · Boeing 757-200 · United Airlines

Flight

Status
Completed
Arrival confirmed via
ADS-B (ground reading)
Departure
Keflavik International Airport (KEF) — Reykjavík, Iceland
Departed
2026-09-11 11:26 UTC
Arrival
Washington Dulles International Airport (IAD) — Washington, DC, United States
Distance flown
4717 km
Straight-line distance
4495 km
Approach distance
134 km

Aircraft

Registration
N17122
Type
Boeing 757-200
Seats
169 total (108 Economy, 45 Economy Plus, 16 Polaris)

Altitude & speed

Max altitude
37,950 ft
Max ground speed
464 kt
Tracked
5h 58m · 4,606 km
Altitude (ft, max 37,950)
020,49340,9860m1h 0m2h 0m3h 0m4h 0m5h 0m
Ground speed (kt, max 464)
02515010m1h 0m2h 0m3h 0m4h 0m5h 0m
Altitude (ft, max 37,950)
020,49340,9860m2h 0m4h 0m
Ground speed (kt, max 464)
02515010m2h 0m4h 0m

From the ADS-B positions we received; time since the first fix. A dashed stretch is a gap in reception, bridged by a straight line.

Route map

Airline

United Airlines (UAL)

Latest flights

DepartedFlightRouteRegAircraftStatusDistance
2026-10-02 20:35 UTC UAL399 JAX → EWR
Jacksonville → Newark
 N27439 Boeing 737 MAX 9 Completed 1410 km
2026-10-01 19:52 UTC UAL399 JAX → EWR
Jacksonville → Newark
 N17557 Boeing 737 MAX 9 Completed 1394 km
2026-09-30 19:49 UTC UAL399 JAX → EWR
Jacksonville → Newark
 N77588 Boeing 737 MAX 9 Completed 1418 km
2026-09-29 19:50 UTC UAL399 JAX → EWR
Jacksonville → Newark
 N27511 Boeing 737 MAX 9 Completed 1424 km
2026-09-28 20:06 UTC UAL399 JAX → EWR
Jacksonville → Newark
 N17427 Boeing 737 MAX 9 Completed 1355 km
2026-09-27 19:54 UTC UAL399 JAX → EWR
Jacksonville → Newark
 N17425 Boeing 737 MAX 9 Completed 1386 km
2026-09-26 19:46 UTC UAL399 JAX → EWR
Jacksonville → Newark
 N17435 Boeing 737 MAX 9 Completed 1385 km
2026-09-25 20:18 UTC UAL399 JAX → EWR
Jacksonville → Newark
 N77587 Boeing 737 MAX 9 Completed 1577 km
2026-09-24 19:50 UTC UAL399 JAX → EWR
Jacksonville → Newark
 N77592 Boeing 737 MAX 9 Completed 1377 km
2026-09-23 11:53 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N48127 Boeing 757-200 Completed 4728 km
2026-09-22 11:44 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N19130 Boeing 757-200 Completed 4730 km
2026-09-21 11:44 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N12125 Boeing 757-200 Completed 4769 km
2026-09-20 11:45 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N18119 Boeing 757-200 Completed 4774 km
2026-09-19 11:33 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N29129 Boeing 757-200 Completed 4724 km
2026-09-18 11:31 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N34137 Boeing 757-200 Completed 4864 km
2026-09-17 11:27 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N12125 Boeing 757-200 Completed 4661 km
2026-09-16 11:38 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N41140 Boeing 757-200 Completed 4851 km
2026-09-15 11:52 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N14115 Boeing 757-200 Completed 4733 km
2026-09-14 11:41 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N41140 Boeing 757-200 Completed 4828 km
2026-09-13 11:38 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N13113 Boeing 757-200 Completed 4732 km
2026-09-12 11:57 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N12125 Boeing 757-200 Completed 4666 km
2026-09-11 11:26 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N17122 Boeing 757-200 Completed 4717 km
2026-09-10 11:35 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N21108 Boeing 757-200 Completed 4726 km
2026-09-09 11:35 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N19130 Boeing 757-200 Completed 4680 km
2026-09-08 11:50 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N29129 Boeing 757-200 Incomplete (signal lost) ~4574 km est. (454 km recorded)
2026-09-07 12:15 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N12114 Boeing 757-200 Completed 4711 km
2026-09-06 11:47 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N14121 Boeing 757-200 Completed 4717 km
2026-09-05 11:40 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N14118 Boeing 757-200 Completed 4729 km
2026-09-04 15:33 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N13138 Boeing 757-200 Completed 4927 km
2026-09-03 11:37 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N13138 Boeing 757-200 Completed 4696 km
2026-09-02 11:43 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N75861 Boeing 737-300 Completed 5144 km
2026-09-01 11:39 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N77867 Boeing 737-300 Completed 4830 km
2026-08-31 11:49 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N14120 Boeing 757-200 Completed 4725 km
2026-08-30 11:33 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N41140 Boeing 757-200 Completed 4666 km
2026-08-29 11:37 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N14120 Boeing 757-200 Completed 4850 km
2026-08-28 12:20 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N58101 Boeing 757-200 Completed 4743 km
2026-08-27 11:37 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N33103 Boeing 757-200 Completed 4675 km
2026-08-26 11:32 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N57111 Boeing 757-200 Completed 4728 km
2026-08-25 11:39 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N17139 Boeing 757-200 Completed 4955 km
2026-08-24 01:26 UTC UAL399 EWR → IAD
Newark → Washington, DC
 N12109 Boeing 757-200 Completed 8996 km
2026-08-23 03:29 UTC UAL399 ORD → IAD
Chicago → Washington, DC
 N41135 Boeing 757-200 Completed 10378 km
2026-08-22 12:03 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N14115 Boeing 757-200 Completed 5257 km
2026-08-21 11:42 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N75853 Boeing 737-300 Completed 5419 km
2026-08-20 11:43 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N18112 Boeing 757-200 Completed 8241 km
2026-08-19 04:13 UTC UAL399 ORD → IAD
Chicago → Washington, DC
 N13113 Boeing 757-200 Completed 12777 km
2026-08-18 11:47 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N18112 Boeing 757-200 Completed 7524 km
2026-08-17 12:07 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N18112 Boeing 757-200 Completed 5521 km
2026-08-16 11:48 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N14102 Boeing 757-200 Completed 5250 km
2026-08-15 12:05 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N29124 Boeing 757-200 Completed 5304 km
2026-08-14 11:54 UTC UAL399 KEF → IAD
Reykjavík → Washington, DC
 N17126 Boeing 757-200 Completed 4766 km

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