Question: Which Swiss low-cost airline operated out of the airport that is also connected to by a British express coach operator?

Context paragraphs:
Scottish Citylink: Scottish Citylink is a long distance express coach operator in Scotland and Ireland (where it operates as Irish Citylink) and England (where it operates as Stansted Citylink).  The company was formed as a subsidiary of Scottish Transport Group in March 1985.  Since September 2005 it has been operated as a 65/35 joint venture between ComfortDelGro and Stagecoach.

EasyBus: EasyBus is a British express coach operator connecting the city centres of London and Manchester with their respective main airports as well providing services from Geneva Airport (where EasyJet Switzerland is based) to nearby communities.  It was founded by entrepreneur Stelios Haji-Ioannou in 2003, and is part of the EasyGroup.  It initially also offered intercity services within the UK in addition to airport services.

Trathens Travel Services: Trathens Travel Services was a Devon, England based bus and coach operator, taken over in 1996 by Scottish-based Park's Motor Group.  The family owned group came to national attention after running express coach services from Plymouth to London, in light of the Transport Act 1980.

PolskiBus: PolskiBus.com is a Polish express coach operator.  Owned by Brian Souter's Highland Global Transport, it commenced operating in June 2011.

Color Air: Color Air AS was the first Norwegian low-cost airline.  It operated from Oslo Airport, Gardermoen in 1998 and 1999 with a fleet of three Boeing 737-300 aircraft.  Color Air was a brand extension of Color Line, which shared a common owner in the Olav Nils Sunde-controlled Color Group.  The airline operated five daily round trips from Oslo to Trondheim and Bergen, four to Ålesund and one to London, in addition to a weekly trip to Alicante.  Color Air pioneered the low-cost business model in Norway, with a denser seating, no frills and lack of a frequent flyer program.  Tickets were sold only via the Internet, by telephone or in supermarkets; when bought from travel agents, there was a 200 kr surcharge.

OnniBus.com: OnniBus.com is a Finnish express coach operator.  Owned by Brian Souter's Highland Global Transport, Pekka Möttö, Lauri Helke, Petteri Rantala and Pertti Möttö it commenced operating in 2011.

America West Airlines: America West Airlines was a U.S. airline headquartered in Tempe, Arizona.  Their main hub was at Sky Harbor Airport in Phoenix, Arizona, with a secondary hub at Las Vegas McCarran International Airport in Las Vegas, Nevada.  The airline became part of the US Airways Group after it acquired the larger airline in 2005 and adopted the US Airways brand name.  America West was the second largest low-cost carrier in the U.S. after Southwest Airlines and served approximately 100 destinations in the US, Canada, and Mexico.  Service to Europe was provided through codeshare partners.  In March 2005, the airline operated a fleet of 132 aircraft, with a single maintenance base at Sky Harbor Airport in Phoenix.  Regional jet and/or turboprop feeder flights were operated on a code sharing basis by Mesa Airlines and Chautauqua Airlines as America West Express.

City2City: City2City was an intercity coach operator providing services in Germany.  It was a subsidiary of National Express, the largest intercity coach operator in the United Kingdom.

EasyJet Switzerland: EasyJet Switzerland SA, styled as easyJet, is a Swiss low-cost airline based in Meyrin, Geneva.  It operates scheduled flights as an EasyJet franchisee from Geneva Airport and EuroAirport Basel–Mulhouse–Freiburg.

Centralwings: Centralwings was a charter airline based in Warsaw, Poland.  The airline operated as a low-cost airline and then became a charter-only operation in October 2008.  It was a subsidiary of LOT Polish Airlines, operating international services in Europe, using Boeing 737 aircraft.  Its main base was Warsaw Frederic Chopin Airport, with hubs at Gdańsk Lech Wałęsa Airport and John Paul II International Airport Kraków-Balice.  On 26 March 2009 the board of LOT Polish Airlines decided to close Centralwings with no information about what was to happen to its employees.

Supporting paragraphs: EasyBus EasyJet Switzerland
Answer: EasyJet Switzerland