Illustrative image; it may differ from the actual aircraft.

Embraer ERJ 145 (EMB-145LR)

ERJ145-145596Unknown

RegistrationUSN18557

Verified aircraft dataagainst the official civil aviation register

OperatorUnited Express

0operators

0incidents

0accidents

15logbook years

0photos

Embraer ERJ 145 (EMB-145LR) in São José dos Campos.

Vuelopedia is a work in progress: it currently holds about 30% of the information we expect to have by the third quarter of 2027. Although we use only official, highly reliable sources, some aircraft data and history may still contain errors or inaccuracies. We work hard to clear every anomaly from the records using specialized verification tools.

Recent flights

Checking flight activity…

Technical data

ManufacturerEmbraer

Engines2×

PropulsionJet

Seats50 (Y50)

Built inSão José dos Campos, Brasil

Country of registrationEstados Unidos

OwnerUnited Express

MSN145596

VerificationIdentity verified against the official register of FAA (United States) · Oct 8, 2026

The model · Embraer ERJ 135 / 145

Figures for the ERJ-145 variant, the most representative of the family

Length29.9 m98 ft

Wingspan20.0 m66 ft

Height6.8 m22 ft

Range2,871 km1,550 NMWith a typical passenger load

Cruise speed828 km/h447 ktMach 0.78

Service ceiling11,280 m37,008 ftIt flies above Everest (1.3 times its height)

Maximum take-off weight22,000 kg48,502 lb

Maximum payload9,886 kg21,795 lbIts 50 passengers with baggage would weigh about 5.0 t; the rest is fuel and cargo

Typical capacity50 passengers

Endurance3 h 28 minAt cruise speed, non-stop

With its 2,871 km range, from Houston it could fly non-stop as far as:

PTYTocumen2,856 km JFKNew York2,278 km LAXLos Angeles2,215 km YYZToronto2,060 km MIAMiami1,549 km

Beyond its rangeSEASeattle3,013 km

The type first flew in 1995 (31 years ago) · About 1,230 units built · Production ended in 2020

Figures for the type, not for this particular aircraft: each variant and each configuration changes something. They are shown in both systems used in aviation.

The full story of the Embraer ERJ 135 / 145 Compare this aircraft

Seating layout

50Economy

50 seats in total

Airports

Where this aircraft has operated, by period · source BTS (EE. UU.)

current operatorUnited Express network of its de jet regional aircraft

Base

IAHHouston ORDChicago DENDenver

Main destinations

IADDulles EWRNewark LAXLos Angeles CLECleveland SFOSan Francisco YYZToronto ATLAtlanta STLSt Louis YULMontréal

Flight logbook

Year-by-year activity · source BTS (EE. UU.)

2020

ExpressJet · 378 flights during the year · base Houston (IAH)

Main route of the year: Knoxville (TYS) → Chicago (ORD)

2019

ExpressJet · 1,472 flights during the year · base Houston (IAH)

Main route of the year: New York (LGA) → Cleveland (CLE)

2018

ExpressJet · 1,348 flights during the year · base Houston (IAH)

Main route of the year: Cleveland (CLE) → New York (LGA)

40 days inactive

2017

ExpressJet · 1,593 flights during the year · base Newark (EWR)

Main route of the year: Washington (DCA) → Newark (EWR)

2016

ExpressJet · 1,522 flights during the year · base Chicago (ORD)

Main route of the year: Portland (PWM) → Newark (EWR)

2015

ExpressJet · 1,840 flights during the year · base Houston (IAH)

Main route of the year: Washington (DCA) → Cleveland (CLE)

2014

ExpressJet · 1,750 flights during the year · base Chicago (ORD)

Main route of the year: Houston (IAH) → Nashville (BNA)

2013

ExpressJet · 1,876 flights during the year · base Chicago (ORD)

Main route of the year: Newark (EWR) → Cincinnati (CVG)

Aircraft chronology

Sep 11, 2001

Grounded after 9/11

On September 11, 2001, the ERJ-145 LR aircraft (registration N18557), operated by Mendoza Leo, was in the news. Source: the FAA (United States).

What happened

On 11 September 2001, after the attacks with hijacked aircraft on the Twin Towers in New York and the Pentagon, the FAA ordered — for the first time in history — the complete closure of United States airspace (the SCATANA plan): all civil aviation was told to land immediately, and by midday the American sky was clear. Around 240 international flights bound for the United States were diverted to Canada — Operation Yellow Ribbon, with more than 30,000 passengers. Airspace reopened gradually from 13 September, by then under new security measures. Source: the FAA (United States).

Source: FAA

Register of memories

This space lets visitors record the memories they have with this aircraft and, in doing so, help fund this non-profit project: the largest aviation encyclopedia in the world.

Diamond

your photo

(Your name could be here)

Did you fly on this aircraft on your honeymoon? You can record it for posterity.

Get one

Gold

your photo

Your partner's name

Did you meet on a flight like this one? Leave the name written forever.

Get one

Silver

your photo

Your father's name

Did he ever fly on this aircraft? Honor him with a memory.

Get one

Memories in rotation—

Get one

See the full list of memories

Cite

To cite this page in academic work, an article or Wikipedia, choose the style and copy the reference. The access date is today.

This page was last updated on October 10, 2026

APA

Vuelopedia. (2026, October 10). Embraer ERJ 145 (EMB-145LR) · N18557 · United Express. Retrieved October 20, 2026, from https://vuelopedia.org/en/aircraft/ERJ145-145596

MLA

“Embraer ERJ 145 (EMB-145LR) · N18557 · United Express.” Vuelopedia, Fundación Poderia, 10 Oct. 2026, vuelopedia.org/en/aircraft/ERJ145-145596. Accessed 20 Oct. 2026.

Chicago

Vuelopedia. “Embraer ERJ 145 (EMB-145LR) · N18557 · United Express.” Fundación Poderia. Last modified October 10, 2026. https://vuelopedia.org/en/aircraft/ERJ145-145596.

Harvard

Vuelopedia (2026) Embraer ERJ 145 (EMB-145LR) · N18557 · United Express. Available at: https://vuelopedia.org/en/aircraft/ERJ145-145596 (Accessed: 20 October 2026).

BibTeX

@misc{vuelopedia_en_aircraft_erj145_145596,
  author       = {{Vuelopedia}},
  title        = {{Embraer ERJ 145 (EMB-145LR) · N18557 · United Express}},
  publisher    = {Fundación Poderia},
  year         = {2026},
  date         = {2026-10-10},
  url          = {https://vuelopedia.org/en/aircraft/ERJ145-145596},
  howpublished = {\url{https://vuelopedia.org/en/aircraft/ERJ145-145596}},
  urldate      = {2026-10-20},
  note         = {Accessed 2026-10-20}
}

Wikipedia

{{cite web |url=https://vuelopedia.org/en/aircraft/ERJ145-145596 |title=Embraer ERJ 145 (EMB-145LR) · N18557 · United Express |website=Vuelopedia |publisher=Fundación Poderia |date=2026-10-10 |access-date=2026-10-20 |language=en}}