317 routes 163 airports
Aircraft / Embraer / ER4

Embraer RJ145 (ER4)

Embraer regional jet. 317 routes across 19 airlines. 2-2 seating, no middle seat. Operated by regional carriers under mainline airline codes. Under 2 hours.

American Airlines operates the most routes with 163. Alaska Airlines and JSX follow. 80 individual aircraft tracked across all operators.

Type
Embraer RJ145
IATA / ICAO
ER4 / –
Manufacturer
Embraer
Category
Regional
Cabin
–
Range
–
American Airlines → Aircraft Directory →
For Passengers

Flying the Embraer RJ145

2-2 seating on jets, no middle seat. Tight overhead bins. Under 2 hours.

Cabin
2-2, no middle seat

Every seat is a window or aisle. Tight overhead bins. Under 2 hours.

Who Flies It

Top Airlines

19 airlines. American Airlines leads with 163 routes.

American Airlines →
Where You Will See It

Top Airports

CLT Routes →
Aircraft Family

Embraer Family

Same manufacturer, similar cabin. Variants differ in range and engines.

FAQ

Embraer RJ145 FAQ

The Embraer RJ145 (IATA code ER4) is a Regional aircraft operated by 19 airlines on 317 routes.

Seat count varies by airline. Check your airline for the specific configuration on your route.

19 airlines. American Airlines operates the most routes.

2-2 seating, no middle seat. Short flights only.

Aircraft Directory → Airlines →