N39728 — 1999 Boeing 737-724 Data
2
aircraft records found
N39728
1999 Boeing 737-724, c/n 28944
N39728 is a 1999 Boeing 737-724 (serial number 28944). It is configured with 2 engines and 149 seats. Registration status is listed as Valid, with ownership recorded under UNITED AIRLINES INC in Chicago, IL, United States. The profile includes 26 photos documenting this aircraft.
Latest photos of N39728
Mark Kalfas
@ KORD
Mark Kalfas
@ KORD
Mark Kalfas
@ KORD
Mark Pasqualino
@ KORD
Recent Routes
NO LIVE DATA
United Airlines
| Time | Callsign | FL | Speed | Heading | Route |
|---|---|---|---|---|---|
| 2026-11-01 14:12 UTC | UAL1344 / UA1344 | — | 13 kt | 276° |
STL → EWR
STL
→
EWR
St Louis Lambert International Airport → Newark Liberty International Airport |
| 2026-11-01 03:42 UTC | UAL1240 / UA1240 | — | 0 kt | 180° |
EWR → STL
EWR
→
STL
Newark Liberty International Airport → St Louis Lambert International Airport |
| 2026-11-01 00:06 UTC | UAL2848 / UA2848 | — | 3 kt | 158° | — |
| 2026-10-31 15:22 UTC | UAL2849 / UA2849 | FL350 | 480 kt | 169° | — |
| 2026-10-31 11:22 UTC | UAL1342 / UA1342 | — | 1 kt | 3° |
SMF → EWR
SMF
→
EWR
Sacramento International Airport → Newark Liberty International Airport |
| 2026-10-31 04:44 UTC | UAL1926 / UA1926 | — | 12 kt | 138° |
EWR → SMF
EWR
→
SMF
Newark Liberty International Airport → Sacramento International Airport |
| 2026-10-30 21:28 UTC | UAL546 / UA546 | — | 2 kt | 276° |
EWR → ORD
EWR
→
ORD
Newark Liberty International Airport → Chicago O'hare International Airport |
| 2026-10-30 19:08 UTC | UAL1392 / UA1392 | — | 1 kt | 307° |
IAD → BOS
IAD
→
BOS
Washington Dulles International Airport → General Edward Lawrence Logan International Airport |
| 2026-10-30 16:20 UTC | UAL1709 / UA1709 | — | 1 kt | 354° |
BNA → IAD
BNA
→
IAD
Nashville International Airport → Washington Dulles International Airport |
| 2026-10-29 23:50 UTC | UAL245 / UA245 | — | 12 kt | 315° |
IAD → BNA
IAD
→
BNA
Washington Dulles International Airport → Nashville International Airport |
| 2026-10-29 20:22 UTC | UAL358 / UA358 | — | 1 kt | 0° |
DFW → IAD
DFW
→
IAD
Dallas-fort Worth International Airport → Washington Dulles International Airport |
| 2026-10-29 16:16 UTC | UAL2471 / UA2471 | — | 18 kt | 357° |
IAD → DFW
IAD
→
DFW
Washington Dulles International Airport → Dallas-fort Worth International Airport |
| 2026-10-29 11:18 UTC | UAL641 / UA641 | — | 1 kt | 354° |
IAD → BOS
IAD
→
BOS
Washington Dulles International Airport → General Edward Lawrence Logan International Airport |
| 2026-10-29 04:20 UTC | UAL1635 / UA1635 | — | 0 kt | 270° |
IAD → ATL
IAD
→
ATL
Washington Dulles International Airport → Hartsfield/jackson Atlanta International Airport |
| 2026-10-29 01:26 UTC | UAL1574 / UA1574 | — | 4 kt | 200° |
BNA → IAD
BNA
→
IAD
Nashville International Airport → Washington Dulles International Airport |
| 2026-10-28 22:26 UTC | UAL2454 / UA2454 | — | 15 kt | 312° |
EWR → BNA
EWR
→
BNA
Newark Liberty International Airport → Nashville International Airport |
| 2026-10-28 19:32 UTC | UAL1365 / UA1365 | — | 0 kt | 6° |
ORD → BOS
ORD
→
BOS
Chicago O'hare International Airport → General Edward Lawrence Logan International Airport |
| 2026-10-28 04:32 UTC | UAL326 / UA326 | FL13 | 135 kt | 208° | — |
| 2026-10-27 22:16 UTC | UAL497 / UA497 | FL2 | 131 kt | 89° |
DEN → SLC
DEN
→
SLC
Denver International Airport → Salt Lake City International Airport |
| 2026-10-27 18:14 UTC | UAL2242 / UA2242 | — | 0 kt | 343° | — |
| 2026-10-27 13:00 UTC | UAL1450 / UA1450 | FL380 | 377 kt | 248° | — |
| 2026-10-27 03:46 UTC | UAL2224 / UA2224 | — | 1 kt | 262° | — |
| 2026-10-26 23:48 UTC | UAL1785 / UA1785 | FL3 | 132 kt | 90° | — |
| 2026-10-26 19:20 UTC | UAL752 / UA752 | FL-3 | 133 kt | 355° |
ORD → DCA
ORD
→
DCA
Chicago O'hare International Airport → Ronald Reagan Washington Ntl Airport |
| 2026-10-26 16:18 UTC | UAL1363 / UA1363 | FL2 | 0 kt | 132° | — |
| 2026-10-26 12:46 UTC | UAL1890 / UA1890 | FL1 | 129 kt | 45° |
EWR → RDU
EWR
→
RDU
Newark Liberty International Airport → Raleigh-durham International Airport |
| 2026-10-26 00:58 UTC | UAL1559 / UA1559 | — | 8 kt | 354° | — |
| 2026-10-25 18:02 UTC | UAL1293 / UA1293 | FL-1 | 131 kt | 207° | — |
| 2026-10-25 11:10 UTC | UAL1219 / UA1219 | — | 8 kt | 338° |
SFO → MFR
SFO
→
MFR
San Francisco International Airport → Rogue Valley Intl/medford Airport |
| 2026-10-25 03:52 UTC | UAL457 / UA457 | FL4 | 137 kt | 51° |
ORD → CLE
ORD
→
CLE
Chicago O'hare International Airport → Cleveland-hopkins International Airport |
| 2026-10-25 01:18 UTC | UAL1009 / UA1009 | — | 15 kt | 180° |
SBA → ORD
SBA
→
ORD
Santa Barbara Municipal Airport → Chicago O'hare International Airport |
| 2026-10-24 19:26 UTC | UAL1008 / UA1008 | — | 0 kt | 177° |
LGA → ORD
LGA
→
ORD
Laguardia Airport → Chicago O'hare International Airport |
| 2026-10-24 14:04 UTC | UAL1332 / UA1332 | — | 16 kt | 357° |
ORD → LGA
ORD
→
LGA
Chicago O'hare International Airport → Laguardia Airport |
| 2026-10-24 04:00 UTC | UAL1394 / UA1394 | FL7 | 133 kt | 131° |
ORD → SAT
ORD
→
SAT
Chicago O'hare International Airport → San Antonio International Airport |
| 2026-10-23 23:30 UTC | UAL2747 / UA2747 | — | 19 kt | 90° | — |
| 2026-10-23 20:40 UTC | UAL580 / UA580 | FL4 | 140 kt | 44° | — |
| 2026-10-23 17:42 UTC | UAL1288 / UA1288 | — | 14 kt | 0° |
ATL → ORD
ATL
→
ORD
Hartsfield/jackson Atlanta International Airport → Chicago O'hare International Airport |
| 2026-10-23 14:30 UTC | UAL2249 / UA2249 | — | 0 kt | 180° |
ORD → ATL
ORD
→
ATL
Chicago O'hare International Airport → Hartsfield/jackson Atlanta International Airport |
| 2026-10-22 17:42 UTC | UAL2207 / UA2207 | — | 15 kt | 23° |
PHL → ORD
PHL
→
ORD
Philadelphia International Airport → Chicago O'hare International Airport |
| 2026-10-22 14:36 UTC | UAL2856 / UA2856 | — | 11 kt | 222° |
AUS → ORD
AUS
→
ORD
Austin-bergstrom International Airport → Chicago O'hare International Airport |
| 2026-10-22 01:34 UTC | UAL1819 / UA1819 | — | 9 kt | 191° | — |
| 2026-10-21 20:00 UTC | UAL1993 / UA1993 | FL128 | 259 kt | 239° |
MCO → ORD
MCO
→
ORD
Orlando International Airport → Chicago O'hare International Airport |
| 2026-10-21 14:30 UTC | UAL2183 / UA2183 | — | 1 kt | 231° |
OKC → ORD
OKC
→
ORD
Okc Will Rogers International Airport → Chicago O'hare International Airport |
| 2026-10-21 03:16 UTC | UAL1440 / UA1440 | — | 0 kt | 177° |
ORD → OKC
ORD
→
OKC
Chicago O'hare International Airport → Okc Will Rogers International Airport |
| 2026-10-20 23:16 UTC | UAL654 / UA654 | — | 13 kt | 6° |
DCA → ORD
DCA
→
ORD
Ronald Reagan Washington Ntl Airport → Chicago O'hare International Airport |
| 2026-10-20 15:24 UTC | UAL2052 / UA2052 | FL2 | 129 kt | 90° | — |
| 2026-10-20 03:48 UTC | UAL1794 / UA1794 | FL6 | 142 kt | 359° | — |
| 2026-10-20 01:26 UTC | UAL643 / UA643 | FL1 | 130 kt | 90° |
LAS → SFO
LAS
→
SFO
Harry Reid International Airport → San Francisco International Airport |
| 2026-10-19 20:50 UTC | UAL1533 / UA1533 | — | 132 kt | 208° | — |
| 2026-10-19 16:16 UTC | UAL697 / UA697 | FL-1 | 136 kt | 90° | — |
| 2026-10-19 02:04 UTC | UAL1627 / UA1627 | — | 3 kt | 141° |
SFO → LAS
SFO
→
LAS
San Francisco International Airport → Harry Reid International Airport |
| 2026-10-18 21:54 UTC | UAL1532 / UA1532 | FL1 | 136 kt | 90° |
ORD → MSY
ORD
→
MSY
Chicago O'hare International Airport → Louis Armstrong New Orleans International Airport |
| 2026-10-18 19:28 UTC | UAL2468 / UA2468 | — | 16 kt | 104° |
EWR → MSY
EWR
→
MSY
Newark Liberty International Airport → Louis Armstrong New Orleans International Airport |
| 2026-10-18 15:16 UTC | UAL1307 / UA1307 | — | 8 kt | 186° |
BOS → EWR
BOS
→
EWR
General Edward Lawrence Logan International Airport → Newark Liberty International Airport |
| 2026-10-18 12:28 UTC | UAL593 / UA593 | FL-5 | 125 kt | 20° |
EWR → BOS
EWR
→
BOS
Newark Liberty International Airport → General Edward Lawrence Logan International Airport |
| 2026-10-17 23:14 UTC | UAL458 / UA458 | — | 4 kt | 295° | — |
| 2026-10-17 17:16 UTC | UAL449 / UA449 | FL114 | 361 kt | 186° | — |
| 2026-10-16 18:36 UTC | UAL1304 / UA1304 | FL699 | 127 kt | 28° | — |
| 2026-10-16 12:54 UTC | UAL2752 / UA2752 | FL220 | 388 kt | 310° |
CVG → ORD
CVG
→
ORD
Cincinnati/northern Kentucky International Airport → Chicago O'hare International Airport |
| 2026-10-16 00:24 UTC | UAL1732 / UA1732 | FL9 | 131 kt | 180° |
BOS → ORD
BOS
→
ORD
General Edward Lawrence Logan International Airport → Chicago O'hare International Airport |
| 2026-10-15 21:10 UTC | UAL2458 / UA2458 | — | 18 kt | 90° |
ORD → LGA
ORD
→
LGA
Chicago O'hare International Airport → Laguardia Airport |
| 2026-10-15 17:10 UTC | UAL2176 / UA2176 | FL320 | 454 kt | 266° |
GSP → ORD
GSP
→
ORD
Greenville Spartanburg International Airport → Chicago O'hare International Airport |
| 2026-10-15 02:34 UTC | UAL1517 / UA1517 | — | 12 kt | 79° |
DFW → ORD
DFW
→
ORD
Dallas-fort Worth International Airport → Chicago O'hare International Airport |
| 2026-10-14 23:40 UTC | UAL1599 / UA1599 | — | 5 kt | 270° |
KAZ3 → DEN
KAZ3 →
DEN
KAZ3 → Denver International Airport |
| 2026-10-14 20:36 UTC | UAL1725 / UA1725 | FL4 | 141 kt | 90° | — |
| 2026-10-14 16:34 UTC | UAL2346 / UA2346 | FL380 | 448 kt | 198° | — |
| 2026-10-14 13:24 UTC | UAL1155 / UA1155 | FL4 | 137 kt | 90° |
EWR → AUS
EWR
→
AUS
Newark Liberty International Airport → Austin-bergstrom International Airport |
| 2026-10-14 04:14 UTC | UAL2237 / UA2237 | FL5 | 140 kt | 327° | — |
| 2026-10-12 12:58 UTC | UAL2684 / UA2684 | — | 6 kt | 188° |
ORD → ATL
ORD
→
ATL
Chicago O'hare International Airport → Hartsfield/jackson Atlanta International Airport |
| 2026-10-12 01:26 UTC | UAL1719 / UA1719 | FL7 | 145 kt | 116° | — |
| 2026-10-11 22:14 UTC | UAL1851 / UA1851 | — | 12 kt | 236° | — |
| 2026-10-11 19:44 UTC | UAL1595 / UA1595 | FL10 | 141 kt | 181° | — |
| 2026-10-11 10:22 UTC | UAL2112 / UA2112 | FL5 | 112 kt | 90° |
DEN → 73CL
DEN
→
73CL
Denver International Airport → Julian Hinds Pump Plant Airstrip Airport |
| 2026-10-11 01:12 UTC | UAL1193 / UA1193 | FL9 | 126 kt | 90° |
DCA → ORD
DCA
→
ORD
Ronald Reagan Washington Ntl Airport → Chicago O'hare International Airport |
| 2026-10-10 22:08 UTC | UAL1941 / UA1941 | FL-4 | 95 kt | 356° | — |
| 2026-10-10 18:56 UTC | UAL2632 / UA2632 | — | 25 kt | 90° | — |
| 2026-10-10 16:26 UTC | UAL473 / UA473 | FL6 | 134 kt | 45° | — |
| 2026-10-09 17:12 UTC | UAL398 / UA398 | — | 12 kt | 8° |
ORD → LGA
ORD
→
LGA
Chicago O'hare International Airport → Laguardia Airport |
| 2026-10-09 14:32 UTC | UAL1366 / UA1366 | FL6 | 141 kt | 18° |
IAD → BNA
IAD
→
BNA
Washington Dulles International Airport → Nashville International Airport |
| 2026-10-08 23:12 UTC | UAL1019 / UA1019 | — | 0 kt | 3° | — |
| 2026-10-08 21:04 UTC | UAL2631 / UA2631 | FL5 | 140 kt | 328° |
BOS → ORD
BOS
→
ORD
General Edward Lawrence Logan International Airport → Chicago O'hare International Airport |
| 2026-10-08 17:42 UTC | UAL576 / UA576 | — | 12 kt | 191° |
MSP → ORD
MSP
→
ORD
Minneapolis-st Paul Intl/wold-chamberlain Airport → Chicago O'hare International Airport |
| 2026-10-08 14:56 UTC | UAL2805 / UA2805 | — | 1 kt | 222° |
ORD → MSP
ORD
→
MSP
Chicago O'hare International Airport → Minneapolis-st Paul Intl/wold-chamberlain Airport |
| 2026-10-05 14:36 UTC | UAL2792 / UA2792 | — | 6 kt | 25° |
STL → ORD
STL
→
ORD
St Louis Lambert International Airport → Chicago O'hare International Airport |
| 2026-10-05 02:02 UTC | UAL8125 / UA8125 | — | 1 kt | 158° | — |
| 2026-10-04 02:24 UTC | UAL2160 / UA2160 | — | 1 kt | 239° |
DFW → ORD
DFW
→
ORD
Dallas-fort Worth International Airport → Chicago O'hare International Airport |
| 2026-10-03 23:06 UTC | UAL2680 / UA2680 | — | 12 kt | 11° | — |
| 2026-10-03 18:48 UTC | UAL1952 / UA1952 | FL6 | 134 kt | 148° | — |
| 2026-10-03 15:04 UTC | UAL471 / UA471 | — | 0 kt | 354° |
IAD → ATL
IAD
→
ATL
Washington Dulles International Airport → Hartsfield/jackson Atlanta International Airport |
| 2026-10-03 01:22 UTC | UAL1477 / UA1477 | FL9 | 134 kt | 41° | — |
| 2026-10-02 21:06 UTC | UAL2457 / UA2457 | FL3 | 138 kt | 90° | — |
| 2026-10-02 16:54 UTC | UAL2043 / UA2043 | FL370 | 417 kt | 151° | — |
Live location data from OpenSky Network
Airframe Info
| Manufacturer | Boeing |
| Model | 737-724 Search all Boeing 737-724 |
| Year built | 1999 |
| Construction Number (C/N) | 28944 |
| Aircraft Type | Fixed wing multi engine |
| Number of Seats | 149 |
| Number of Engines | 2 |
| Engine Type | Turbofan |
| Engine Manufacturer and Model | CFM International CFM56-7B2 |
| Also Registered As |
|
Aircraft
| Registration Number | N39728 |
| Mode S (ICAO24) Code | a49f89 |
| Certification Class | Standard |
| Certification Issued | 2019-01-16 |
| Air Worthiness Test | 1999-07-15 |
| Last Action Taken | 2023-07-07 |
| Current Status | Valid |
Owner
| Registration Type | Corporation |
| Owner | UNITED AIRLINES INC |
| Address |
Chicago, IL 606067147 United States |
| Region | Great Lakes |