Republic Airways Inc. is an American regional airline subsidiary of Republic Airways Holdings that operates service as American Eagle, Delta Connection, and United Express using a fleet of Embraer 170 and Embraer 175 regional jets.

In 2004 the holding company activated Republic Airways in reaction to a pilots' suit against American Airlines.

American had awarded the flying of 44-seat regional jets to Chautauqua Airlines, then the main operating subsidiary of Republic Airways Holdings.

Republic Airways Holdings paid $6.6 million to the pilot union of American Airlines to settle the issue.

[7] US Airways' pilots had a scope clause prohibiting the airline from operating large regional jets such as the Embraer E170.

[9] Republic began service as an American Eagle affiliate on August 1, 2013, from Chicago to New Orleans, Pittsburgh, and Albuquerque.

[11][12] On November 16, 2016, Republic Airways Holdings filed their Plan of Reorganization with intentions to emerge from Chapter 11 during the first quarter of 2017.

[16] In May 2012, Republic Airways agreed to fly the 28 Bombardier Q400s for United Express that bankrupt Pinnacle Airlines planned to return to its lessors.

[9] Republic took first delivery of the E175 jets in July 2013 and service began August 1, 2013, from Chicago to New Orleans, Pittsburgh and Albuquerque.

American Airlines uses Republic to operate aircraft out of Miami International Airport to various Caribbean and Central American destinations, including the Bahamas, Mexico, Panama, Belize, Honduras, Costa Rica, Turks & Caicos, Cuba, Guadeloupe, and the French West Indies.

[citation needed] In late 2016 it was announced, due to the impending merger with Shuttle America, that the 80-seat Embraer E175s operated for American Eagle (previously US Airways Express) would have the last row of seats removed (4 in total) to conform with Delta's scope clause, which limits all regional jets to a maximum of 76 seats.

[citation needed] On December 20, 2018, Republic Airways announced that it had finalized a firm order for 100 Embraer E175 aircraft, stating that deliveries for the new aircraft would start in the second half of 2020 [20] In October 2019, Republic received the first of 30 E175s to be transferred from Compass Airlines upon the cancellation of their contract with Delta.