(Reuters] – Frontier Group (NASDAQ: JetBlue Airways) and JetBlue Airways are fighting for low-cost airline business Spirit Airlines (NYSE:) As legacy airlines are outnumbered, U.S. airlines compete for more of the leisure travel market.

JetBlue presented an unrestricted offer of $33 per shares in cash. It was more than the $25-per-share Frontier cash-and stock bid. Spirit opened negotiations with the New York-based airline.

This is a short look at the major companies involved in consolidation of U.S. airlines industry.

Spirit Airlines Inc

Spirit Airlines began as Clippert trucking company in 1964. The airline operates at more than 85 locations in 16 countries including the United States and Latin America.

Headquarters Miramar, Florida

As of December 31, Fleet operated 173 aircraft

2021

Airbus Fleet Type Airbus A319 (A320ceo. A320neo. A321)

For the year 2021, revenue was $3.23 trillion

According to Refinitiv Market Cap $2.85 Billon

Data

Routes in 360 Markets served by 85 Airports

As of December 31st, employees 9,823 were still active

2021

JetBlue Airways Corp

JetBlue Airways was founded in August 1998 and operates primarily routes throughout the United States.

New York Headquarters, Long Island City

As of December 31, Fleet operated 282 aircraft

2021

Airbus A220, Airbus A320 and Airbus A320 fleet type

A321, Airbus A321neo (and Embraer)

E190

Year ended 2021: Revenues $6.04 Billion

According to Refinitiv, Market Cap of $3.82 Billion

Data

Routes to more than 100 locations across the country

United States of America, Caribbean and

Latin America and New York

London

Average Employees were employed at 15,452

Crew members are full-time or part-time at 4,014 and 3,014 respectively

For the year that ended December 31, 2018, members

2021

Frontier Group Holdings:

Frontier Airlines is the name of Frontier Group. It was founded by Bill Franke, an ultra-low cost airline pioneer. This carrier operates Airbus aircraft in the United States, as well some other international destinations.

Headquarters Denver, Colorado

As of December 31, Fleet operated 110 aircraft

2021

Fleet type Airbus single-aisle aircraft;

A320ceos, A320neos , A321ceos

Year ended 2021: Revenues of $2.06 Billion

Market Cap $2.33 Billon, according to Refinitiv

Data

Routes U.S., Mexico, Puerto Rico, Jamaica,

Guatemala, El Salvador, Dominican

Canada and the Republic

5502 employees total, Dec 31

2021