N12221
Boeing 737-824 · built 1998
Registrations are reused: the FAA register shows 2 earlier aircraft with this mark, the last exported to Venezuela on September 2, 1992.
Register facts: FAA Aircraft Registry (Releasable Aircraft Database) (open data).
Usually based at DEN
Most frequent routes
- IAH → EWR7%
- EWR → FLL5%
- MSP → ORD4%
- IAD → EWR3%
- HNL → SFO3%
- SFO → LAX3%
- ORD → AUS3%
- DEN → PHL3%
- DEN → EWR3%
- MSO → DEN3%
Last seen
Scheduled US airline service
Reported in scheduled US passenger service from December 1998 to July 2026 — 24,885 flights. Last reported flight: July 31, 2026, United Airlines, DFW → IAH.
| Carrier | First | Last | Flights |
|---|---|---|---|
| United Airlines UA | January 2012 | July 2026 | 13,142 |
| Continental Airlines CO | December 1998 | December 2011 | 11,743 |
Source: BTS Reporting Carrier On-Time Performance (public domain; US reporting carriers, scheduled domestic flights).
US fleet inventory (BTS B-43)
Filed in BTS’s annual carrier fleet inventory from 2006 to 2025, most recently reported as owned.
| Carrier | First filed | Last filed |
|---|---|---|
| United Airlines UA | 2012 | 2025 |
| Continental Airlines CO | 2006 | 2011 |
Source: BTS Form 41 Schedule B-43 (Annual Inventory of Airframe and Aircraft Engines) (open data; large certificated US carriers, annual filing).
Safety history
- July 8, 1999Accident
the aircrew's inadvertent encounter with unforecast clear air turbulence.