United Airlines 757-300
21 aircraft · 234 seats · World's largest 757-300 fleet · Phasing out for the A321neo
Explore aircraft details below
Overview
The Boeing 757-300 is the stretched 757, packing 234 seats into a narrowbody frame — United's highest-density single-aisle jet. With 21 aircraft, United is the largest operator of the type, flying it on high-demand transcontinental, Florida, and Hawaii routes.
The 757-300 is still flying in 2026. The A321XLR is replacing United's 757s on some international routes from 2026, but United has not published a retirement date for the 757-300. A321neo and Boeing 737 jets are backfilling this domestic flying, while the long-range A321XLR takes over the 757-200's thin transatlantic routes.
Seat Configuration
| Cabin | Seats | Layout |
|---|---|---|
| First | 24 | 2-2 |
| Economy Plus | 54 | 3-3 |
| Economy | 156 | 3-3 |
WiFi & In-Flight Entertainment
WiFi is mixed across the fleet — a blend of Viasat Ka-band, satellite Ka-band, and Ku-band. All 21 use personal-device entertainment (PDE), with 110V AC power at every seat. United says it expects to bring free Starlink WiFi to its whole fleet by the end of 2027, but it has not published a 757 install schedule; the A321neo already carries it.
Routes & Hubs
High-demand domestic routes — transcontinental, Florida, and Hawaii — where the 757-300's 234 seats make it ideal for peak-demand flying. As United phases out the 757, the A321neo family is taking over much of this flying.
Related Aircraft
757-200 (40) is the shorter variant with 16 lie-flat premium seats.
Specifications
Key technical specifications for the Boeing 757-300 as operated by United Airlines.
| Manufacturer | The Boeing Company |
|---|---|
| Model | 757-300 |
| Body type | Narrow-body |
| Engines | 2x Rolls-Royce RB211-535E4B |
| Range | 3,200 nmi (5,930 km) |
| Cruise speed | Mach 0.80 |
| Wingspan | 38.1 m (125 ft) |
| Length | 54.4 m (178 ft) |
Aircraft Registry — All 21 Boeing 757-300
Complete list of every United Airlines Boeing 757-300 with registration, delivery year, seat configuration, WiFi, IFE, and current status, from public aviation records — as of .
| Reg | AC# | Config | WiFi | IFE | Power | Year | Status |
|---|---|---|---|---|---|---|---|
| N56859 | 3859 | 24F/54E+/156Y | ViaSat Ka | PDE | 110 V | 2004 | Active |
| N57852 | 3852 | 24F/54E+/156Y | ViaSat Ka | PDE | 110 V | 2001 | Active |
| N57855 | 3855 | 24F/54E+/156Y | ViaSat Ka | PDE | 110 V | 2004 | Active |
| N57857 | 3857 | 24F/54E+/156Y | ViaSat Ka | PDE | 110 V | 2004 | Active |
| N57862 | 3862 | 24F/54E+/156Y | Satellite Ku | PDE | 110 V | 2001 | Active |
| N57863 | 3863 | 24F/54E+/156Y | Satellite Ku | PDE | 110 V | 2001 | Active |
| N57864 | 3864 | 24F/54E+/156Y | Satellite Ku | PDE | 110 V | 2001 | IAH Maint 9/2/26 |
| N57868 | 3868 | 24F/54E+/156Y | Satellite Ku | PDE | 110 V | 2002 | Active |
| N57869 | 3869 | 24F/54E+/156Y | Satellite Ku | PDE | 110 V | 2002 | Active |
| N57870 | 3870 | 24F/54E+/156Y | Satellite Ku | PDE | 110 V | 2003 | Active |
| N73860 | 3860 | 24F/54E+/156Y | Satellite Ku | PDE | 110 V | 2001 | Active |
| N74856 | 3856 | 24F/54E+/156Y | ViaSat Ka | PDE | 110 V | 2004 | Active |
| N75851 | 3851 | 24F/54E+/156Y | ViaSat Ka | PDE | 110 V | 2001 | Active |
| N75853 | 3853 | 24F/54E+/156Y | ViaSat Ka | PDE | 110 V | 2002 | Active |
| N75854 | 3854 | 24F/54E+/156Y | ViaSat Ka | PDE | 110 V | 2002 | Active |
| N75858 | 3858 | 24F/54E+/156Y | ViaSat Ka | PDE | 110 V | 2004 | Active |
| N75861 | 3861 | 24F/54E+/156Y | Satellite Ku | PDE | 110 V | 2001 | Active |
| N77865 | 3865 | 24F/54E+/156Y | Satellite Ku | PDE | 110 V | 2002 | Active |
| N77867 | 3867 | 24F/54E+/156Y | Satellite Ku | PDE | 110 V | 2002 | Active |
| N77871 | 3871 | 24F/54E+/156Y | Satellite Ku | PDE | 110 V | 2003 | Active |
| N78866 | 3866 | 24F/54E+/156Y | Satellite Ku | PDE | 110 V | 2002 | Active |
Frequently Asked Questions
How many Boeing 757-300 aircraft does United Airlines have?
21 aircraft, delivered between 2001 and 2004. United is the largest operator of the 757-300, flying it as its highest-density single-aisle jet on transcon, Florida, and Hawaii routes.
Is United retiring the Boeing 757-300?
Not yet — the 757-300 is still flying in 2026, but United has not published a retirement date for the 757-300. A321neo and Boeing 737 jets are backfilling this high-density domestic flying, while the A321XLR replaces the 757-200 on thin transatlantic routes.
What is the seat configuration on United's 757-300?
234 passengers: 24 First (2-2), 54 Economy Plus, 156 Economy — the highest-density single-aisle jet in United's fleet.
Does the United 757-300 have seatback screens?
No. All 21 use personal-device entertainment (PDE) streamed to your phone, tablet, or laptop.
Does the United 757-300 have WiFi?
Yes, though the systems are mixed — some aircraft use Viasat Ka-band, some satellite Ka-band, and some Ku-band. United says it expects to bring free Starlink WiFi to its whole fleet by the end of 2027, but it has not published a 757 install schedule.
What routes does United fly the 757-300 on?
High-demand domestic routes — transcontinental, Florida, and Hawaii — where passenger volume is high.
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