United Airlines is thrilled to announce its expanded international flight schedule involving flights originating out of its hubs in Chicago, Denver, New York/Newark and San Francisco. The Chicago-based carrier's new service include seasonal flights linking New York/Newark and Curaçao; Nice, France; and Palermo; Italy.

Subject to government approval, United Airlines' brand-new service connecting New York/Newark and Curaçao will launch on December 7, 2019. This will be a Saturday-only service. For those who are wondering, the route will be flown using United's Boeing 737-700 aircraft. The addition of Curaçao to United's Caribbean route network gives travelers easy access to the three ABC Caribbean islands, namely Aruba, Bonaire and Curaçao.

Subject to government approval, United Airlines' new service from New York/Newark to Nice, France and Palermo, Italy will debut on May 2, 2020 and May 20, 2020 respectively. The carrier will offer daily nonstop flights for passengers looking to shuttle between New York/Newark and Nice, France, the gateway to the French Riviera. This route will be operated using its premium Boeing 767-300ER aircraft boasting a total of 46 United Polaris Business Class seats, 22 Premium Plus seats and 99 Economy seats. The route to Palermo will also be offered daily, although the carrier has not released details regarding the aircraft it intends to use for the New York/Newark-Palermo service.

Additionally, United Airlines will be offering extra flights to European destinations Amsterdam; London; Frankfurt, Germany; and Zurich.

The carrier will add daily nonstop service between Chicago O'Hare and Zurich on March 28, 2020, offering more international service to travelers flying out of Chicago than any other US-based airline. In case you were wondering, this will be a year-round service. Like the route between New York/Newark and Nice, the Chicago O'Hare-Zurich route will be operated using United's Boeing 767-300ER aircraft that features 46 United Polaris Business Class seats. This newly added service is deemed a great complement to United's existing flights from New York/Newark, San Francisco, and Washington to Switzerland.

As for the additional flights, United will be adding a second daily New York/Newark-Amsterdam flight as well as a second daily New York/Newark-Frankfurt flight. These newly added flights are poised to take to the skies beginning March 28, 2020.

The carrier, subject to government approval, will also be increasing service to London and New Delhi. In particular, the carrier is looking to operate year-round daily Denver-London service starting November 1 this year with its Boeing 787-8 Dreamliner jet. United is also expanding its originally announced seasonal San Francisco-New Delhi service to a year-round one. The inaugural flight for this service will take off in early December, beginning December 5, 2019, on United's Boeing 787-9 Dreamliner jet.

That's not all, United Airlines customers can also look forward to the resumption of popular summer seasonal flights to well-loved destinations the likes of Barcelona, Spain; Athens, Greece; Porto, Portugal; and Naples, Italy.

Denise Bay is a staff writer at GET.com. Email: denise.bay@get.com.