N23721 · BOEING 737-700

Manufacturer and model

BOEING 737-700

Operator

United Airlines (UAL)

First seen

2026-08-10

Last seen

2026-09-27

Flights over the last 30 days

107

Recent flights

• UAL3879 Cleveland Hopkins International Airport (CLE/KCLE) → Smith Reynolds Airport (INT/KINT) 2026-09-27
• UAL2652 Chicago O'Hare International Airport (ORD/KORD) → Cleveland Hopkins International Airport (CLE/KCLE) 2026-09-26
• UAL516 Hartsfield Jackson Atlanta International Airport (ATL/KATL) → Chicago O'Hare International Airport (ORD/KORD) 2026-09-26
• UAL471 Washington Dulles International Airport (IAD/KIAD) → Hartsfield Jackson Atlanta International Airport (ATL/KATL) 2026-09-26
• UAL413 Albuquerque International Sunport (ABQ/KABQ) → Washington Dulles International Airport (IAD/KIAD) 2026-09-26

Sources: the aircraft registry and our own observations; flight totals also include history taken over from before our own network started.