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UAL2661

PHL → SFO · Boeing 737 MAX 9 · United Airlines

Flight

Status
Completed
Arrival confirmed via
ADS-B (ground reading)
Departure
Philadelphia International Airport (PHL) — Philadelphia, United States
Est. departure time
2026-09-10 09:48 UTC (approx.)
Arrival
San Francisco International Airport (SFO) — San Francisco, United States
Distance flown
4352 km
Straight-line distance
4048 km
Approach distance
74 km

Aircraft

Registration
N17438
Type
Boeing 737 MAX 9
Seats
179 total (117 Economy, 42 Economy Plus, 20 First) (typical for type, not this tail)

Altitude & speed

Max altitude
36,025 ft
Max ground speed
466 kt
Tracked
5h 45m · 4,102 km
Altitude (ft, max 36,025)
019,45438,9070m1h 0m2h 0m3h 0m4h 0m5h 0m
Ground speed (kt, max 466)
02525030m1h 0m2h 0m3h 0m4h 0m5h 0m
Altitude (ft, max 36,025)
019,45438,9070m2h 0m4h 0m
Ground speed (kt, max 466)
02525030m2h 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 10:16 UTC UAL2661 PHL → SFO
Philadelphia → San Francisco
 N47446 Boeing 737 MAX 9 In progress ~4048 km est.
2026-10-01 17:41 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N37450 Boeing 737 MAX 9 Completed 678 km
2026-10-01 10:14 UTC UAL2661 PHL → SFO
Philadelphia → San Francisco
 N17402 Boeing 737 MAX 9 Completed 4148 km
2026-09-28 17:51 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N97424 Boeing 737 MAX 9 Completed 685 km
2026-09-28 10:13 UTC UAL2661 PHL → SFO
Philadelphia → San Francisco
 N17456 Boeing 737 MAX 9 Completed 4113 km
2026-09-27 17:38 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N17443 Boeing 737 MAX 9 Completed 682 km
2026-09-27 10:15 UTC UAL2661 PHL → SFO
Philadelphia → San Francisco
 N77585 Boeing 737 MAX 9 Completed 4107 km
2026-09-26 10:09 UTC UAL2661 PHL → SFO
Philadelphia → San Francisco
 N37351 Boeing 737 MAX 8 Completed 4141 km
2026-09-25 18:51 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N17432 Boeing 737 MAX 9 Completed 684 km
2026-09-25 10:14 UTC UAL2661 PHL → SFO
Philadelphia → San Francisco
 N37554 Boeing 737 MAX 9 Completed 4155 km
2026-09-24 18:25 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N17441 Boeing 737 MAX 9 Completed 684 km
2026-09-24 10:11 UTC UAL2661 PHL → SFO
Philadelphia → San Francisco
 N17452 Boeing 737 MAX 9 Completed 4139 km
2026-09-23 17:56 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N77581 Boeing 737 MAX 9 Completed 679 km
2026-09-21 17:38 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N77543 Boeing 737 MAX 9 Completed 684 km
2026-09-20 17:44 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N17456 Boeing 737 MAX 9 Completed 700 km
2026-09-19 17:46 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N37562 Boeing 737 MAX 9 Completed 737 km
2026-09-18 17:45 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N37547 Boeing 737 MAX 9 Completed 717 km
2026-09-18 10:03 UTC UAL2661 PHL → SFO
Philadelphia → San Francisco
 N27586 Boeing 737 MAX 9 Completed 4323 km
2026-09-17 17:29 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N27520 Boeing 737 MAX 9 Completed 708 km
2026-09-17 10:10 UTC UAL2661 PHL → SFO
Philadelphia → San Francisco
 N37551 Boeing 737 MAX 9 Completed 4466 km
2026-09-16 17:35 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N37508 Boeing 737 MAX 9 Completed 718 km
2026-09-14 17:32 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N77588 Boeing 737 MAX 9 Completed 742 km
2026-09-13 17:33 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N37567 Boeing 737 MAX 9 Completed 727 km
2026-09-12 18:12 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N17408 Boeing 737 MAX 9 Completed 714 km
2026-09-11 17:28 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N47570 Boeing 737 MAX 9 Completed 722 km
2026-09-11 10:05 UTC UAL2661 PHL → SFO
Philadelphia → San Francisco
 N77580 Boeing 737 MAX 9 Completed 4499 km
2026-09-10 17:43 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N17417 Boeing 737 MAX 9 Completed 757 km
2026-09-10 10:04 UTC UAL2661 PHL → SFO
Philadelphia → San Francisco
 N17438 Boeing 737 MAX 9 Completed 4352 km
2026-09-09 17:34 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N47446 Boeing 737 MAX 9 Completed 713 km
2026-09-07 17:33 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N17596 Boeing 737 MAX 9 Completed 744 km
2026-09-07 10:12 UTC UAL2661 PHL → SFO
Philadelphia → San Francisco
 N18243 Boeing 737-800 Completed 4308 km
2026-09-06 18:10 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N17557 Boeing 737 MAX 9 Completed 711 km
2026-09-05 17:41 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N17410 Boeing 737 MAX 9 Completed 718 km
2026-09-04 17:35 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N37562 Boeing 737 MAX 9 Completed 682 km
2026-09-04 10:21 UTC UAL2661 PHL → SFO
Philadelphia → San Francisco
 N37528 Boeing 737 MAX 9 Completed 4251 km
2026-09-03 17:37 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N17452 Boeing 737 MAX 9 Completed 719 km
2026-09-03 10:53 UTC UAL2661 PHL → SFO
Philadelphia → San Francisco
 N17407 Boeing 737 MAX 9 Completed 4512 km
2026-09-02 17:41 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N47434 Boeing 737 MAX 9 Completed 736 km
2026-09-02 10:06 UTC UAL2661 PHL → SFO
Philadelphia → San Francisco
 N17460 Boeing 737 MAX 9 Completed 4386 km
2026-09-01 17:43 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N36476 Boeing 737-900 Completed 719 km
2026-08-31 17:33 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N77471 Boeing 737 MAX 9 Completed 767 km
2026-08-31 10:10 UTC UAL2661 PHL → SFO
Philadelphia → San Francisco
 N17441 Boeing 737 MAX 9 Completed 4466 km
2026-08-30 17:27 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N17593 Boeing 737 MAX 9 Completed 724 km
2026-08-30 10:13 UTC UAL2661 PHL → SFO
Philadelphia → San Francisco
 N17438 Boeing 737 MAX 9 Completed 4175 km
2026-08-29 17:30 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N77590 Boeing 737 MAX 9 Completed 725 km
2026-08-28 18:28 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N47446 Boeing 737 MAX 9 Completed 731 km
2026-08-28 10:09 UTC UAL2661 PHL → SFO
Philadelphia → San Francisco
 N47446 Boeing 737 MAX 9 Completed 4337 km
2026-08-27 17:34 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N17455 Boeing 737 MAX 9 Completed 719 km
2026-08-27 10:15 UTC UAL2661 PHL → SFO
Philadelphia → San Francisco
 N37555 Boeing 737 MAX 9 Completed 4370 km
2026-08-26 17:24 UTC UAL2661 SFO → ONT
San Francisco → Ontario
 N47434 Boeing 737 MAX 9 Completed 736 km

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