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UAL2021

IAD → SJU · Boeing 737 MAX 8 · United Airlines

For travellers

Departure · Washington, DC (IAD)

Gate D19
Scheduled 30 Sep 08:40 · Departed 30 Sep 08:35 · early
Board status: InAir
Airborne since 30 Sep 08:47 (ADS-B)

Board data from mwaa, updated 2214 min ago; times local to each airport.

Flight

Status
Completed
Arrival confirmed via
ADS-B (ground reading)
Departure
Washington Dulles International Airport (IAD) — Washington, DC, United States
Scheduled departure
2026-09-30 12:40 UTC
Departed
2026-09-30 12:47 UTC
Arrival
Luis Munoz Marin International Airport (SJU) — San Juan, Puerto Rico
Also flies as
UA2021
Codeshares
AC3791
Distance flown
2634 km
Straight-line distance
2534 km
Approach distance
97 km

Aircraft

Registration
N37367
Type
Boeing 737 MAX 8
Seats
166 total (96 Economy, 54 Economy Plus, 16 First) (typical for type, not this tail)
CO2 (EMEP est., total)
51.0 t (392 kg/pax Business, 298 kg/pax Economy)

Altitude & speed

Max altitude
35,000 ft
Max ground speed
497 kt
Tracked
3h 18m · 2,629 km
Altitude (ft, max 35,000)
018,90037,8000m30m1h 0m1h 30m2h 0m2h 30m3h 0m
Ground speed (kt, max 497)
02685370m30m1h 0m1h 30m2h 0m2h 30m3h 0m
Altitude (ft, max 35,000)
018,90037,8000m1h 0m2h 0m3h 0m
Ground speed (kt, max 497)
02685370m1h 0m2h 0m3h 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 12:51 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N17359 Boeing 737 MAX 8 In progress ~2534 km est.
2026-10-01 12:55 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N47282 Boeing 737 MAX 8 Completed 2665 km
2026-09-30 12:47 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N37367 Boeing 737 MAX 8 Completed 2634 km
2026-09-29 12:51 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N17320 Boeing 737 MAX 8 Completed 2769 km
2026-09-28 12:37 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N27273 Boeing 737 MAX 8 Completed (landing presumed) 2638 km
2026-09-27 12:47 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N17358 Boeing 737 MAX 8 Completed 2774 km
2026-09-26 12:40 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N17336 Boeing 737 MAX 8 Completed 2895 km
2026-09-25 12:38 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N27253 Boeing 737 MAX 8 Completed (landing presumed) 2885 km
2026-09-24 12:56 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N37352 Boeing 737 MAX 8 Completed 2804 km
2026-09-21 12:55 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N17430 Boeing 737 MAX 9 Completed (landing presumed) 2802 km
2026-09-20 13:31 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N77598 Boeing 737 MAX 9 Completed (landing presumed) 2861 km
2026-09-19 13:07 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N67350 Boeing 737 MAX 8 Completed 2852 km
2026-09-18 13:09 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N37535 Boeing 737 MAX 9 Completed 2722 km
2026-09-17 13:11 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N17565 Boeing 737 MAX 9 Completed (landing presumed) 3108 km
2026-09-14 15:03 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N37473 Boeing 737 MAX 9 Completed 2830 km
2026-09-13 13:14 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N27474 Boeing 737 MAX 9 Completed 2719 km
2026-09-12 12:52 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N47343 Boeing 737 MAX 8 Completed (landing presumed) 2796 km
2026-09-11 12:57 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N47457 Boeing 737 MAX 9 Completed (landing presumed) 2925 km
2026-09-10 13:23 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N17425 Boeing 737 MAX 9 Completed 2890 km
2026-09-07 12:57 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N77471 Boeing 737 MAX 9 Completed 2657 km
2026-09-06 13:00 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N37440 Boeing 737 MAX 9 Completed 2872 km
2026-09-05 12:54 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N47293 Boeing 737 MAX 8 Completed (landing presumed) 2692 km
2026-09-04 13:05 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N53442 Boeing 737-900 Completed (landing presumed) 2672 km
2026-09-03 13:15 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N27464 Boeing 737 MAX 9 Completed 2681 km
2026-09-02 13:10 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N37561 Boeing 737 MAX 9 Completed 2669 km
2026-09-01 13:06 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N47450 Boeing 737 MAX 9 Completed 2691 km
2026-08-31 13:10 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N37449 Boeing 737 MAX 9 Completed 3453 km
2026-08-30 13:06 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N37551 Boeing 737 MAX 9 Completed 2904 km
2026-08-29 12:35 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N47293 Boeing 737 MAX 8 Completed 2878 km
2026-08-28 13:37 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N17460 Boeing 737 MAX 9 Completed 2850 km
2026-08-27 13:21 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N17461 Boeing 737 MAX 9 Completed 3248 km
2026-08-26 13:08 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N17467 Boeing 737 MAX 9 Completed 2860 km
2026-08-25 13:05 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N27464 Boeing 737 MAX 9 Completed 2866 km
2026-08-24 12:54 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N17429 Boeing 737 MAX 9 Completed 2966 km
2026-08-23 13:10 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N37551 Boeing 737 MAX 9 Completed 3415 km
2026-08-22 13:08 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N17364 Boeing 737 MAX 8 Completed 3907 km
2026-08-21 13:24 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N37536 Boeing 737 MAX 8 Completed 3354 km
2026-08-20 13:12 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N17565 Boeing 737 MAX 9 Completed 4600 km
2026-08-19 13:06 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N17414 Boeing 737 MAX 9 Completed 3095 km
2026-08-18 13:10 UTC UAL2021 IAD → SIG
Washington, DC → San Juan
 N17413 Boeing 737 MAX 9 Completed 4616 km
2026-08-17 13:12 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N37551 Boeing 737 MAX 9 Completed 2908 km
2026-08-16 12:58 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N17452 Boeing 737 MAX 9 Completed 3252 km
2026-08-15 12:35 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N47340 Boeing 737 MAX 8 Completed ~6265 km est. (3488 km recorded)
2026-08-14 13:33 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N17433 Boeing 737 MAX 9 Completed ~6578 km est. (3966 km recorded)
2026-08-13 12:56 UTC UAL2021 IAD → SJU
Washington, DC → San Juan
 N17430 Boeing 737 MAX 9 Completed ~6158 km est. (2892 km recorded)

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