Allegiant Air has launched nonstop flights between Trenton-Mercer Airport in Ewing and Orlando Sanford International Airport, adding a fourth Florida destination to its growing lineup as the airport prepares for a major terminal redevelopment.
The new route operates twice weekly, on Mondays and Fridays, and follows Allegiant’s return to Trenton-Mercer in February after a seven-year absence.
One-way base fares start as low as $33 to $39, with round-trip fares available from approximately $78, depending on travel dates and availability. Additional charges for baggage, seat selection and other services may apply.
The service is part of a broader expansion of commercial air travel at the airport, which has also welcomed Breeze Airways and appointed a new leadership team as Mercer County moves ahead with plans to replace its aging passenger terminal.
Allegiant announced in November 2025 that it would resume operations at Trenton-Mercer. Its first three routes began in February, offering nonstop flights to Fort Lauderdale-Hollywood International Airport, Punta Gorda Airport and St. Pete-Clearwater International Airport, all in Florida.
Orlando Sanford International Airport, northeast of downtown Orlando, gives travelers another option for reaching central Florida without using the larger airports in Newark or Philadelphia.
Mercer County officials welcomed the addition, saying Allegiant’s return has been well received by passengers. “We were very excited to welcome Allegiant back to Trenton Mercer Airport last year, and we’re proud to welcome the launch of their newest route, connecting TTN to Orlando Sanford International,” the county said in a news release. “We’ve gotten great feedback already from residents flying with Allegiant, and we look forward to continued collaboration as we work together to offer residents and visitors at TTN the best possible experience.”
Allegiant’s latest addition comes less than a month after Breeze Airways began service at Trenton-Mercer, bringing another airline to the airport’s expanding roster of carriers.
Breeze launched service to Charleston, South Carolina, on Sept. 20, giving Trenton-Mercer a nonstop destination outside Florida. The airline also began one-stop, no-change-of-plane service to Fort Lauderdale on the same date.
Nonstop flights to Vero Beach, Florida, began Sept. 30, while service to Southwest Florida International Airport in Fort Myers is scheduled to begin Friday, Jan. 8, 2027. The Fort Myers flights will operate Mondays and Fridays.
The new Breeze routes were announced in June, with promotional one-way fares starting at $59 for Charleston and $89 for Vero Beach and Fort Myers, subject to restrictions.
Breeze’s arrival was welcomed by Mercer County Executive Dan Benson, who said the additional airline would expand travel options for area residents.
“TTN offers the easiest air-travel experience in our region and we’re proud to keep expanding travelers’ options with affordable flights to even more locations, including the return of a non-stop destination outside of Florida,” Benson said when the airline’s plans were announced.
The expanding flight schedules come as Mercer County pursues a long-planned replacement of Trenton-Mercer’s passenger terminal.
Plans approved by the Federal Aviation Administration in 2022 call for replacing the existing 28,000-square-foot terminal, which dates to the 1970s, with a new 125,000-square-foot facility.
The new terminal would be built adjacent to the existing building, which would be demolished. The project includes expanded baggage-handling facilities, passenger waiting areas, security screening space, concessions and a parking garage.
Despite the substantial increase in terminal space, the plans call for four passenger gates, with boarding bridges replacing the current practice of passengers walking outside to board aircraft. The project does not involve adding or lengthening runways.
The FAA approved the project after determining that it would have no significant environmental impact. In 2024, the federal agency awarded $2.5 million toward construction of the terminal.
The project also received a favorable recommendation from Delaware and Raritan Canal Commission staff in March 2026.
Mercer County has said the existing terminal is undersized for current and anticipated passenger traffic and lacks many of the amenities and infrastructure found in newer airport facilities.
The airport entered a new phase of leadership in September with the appointments of Michael Caires as airport director and Matt Parker as deputy airport director.
Both appointments took effect Sept. 1.
Caires, who was selected following a national search, previously served as general manager for TBI Airport Management Inc./Vinci Airports at Atlantic City International Airport.
He also spent 18 years at Orlando Sanford International Airport, where he held senior positions involving air-service development, marketing, commercial aviation, customer experience and other operations.
His connection to Orlando Sanford is particularly relevant to Allegiant’s new route, which links Trenton-Mercer with an airport where Caires spent much of his career.
Parker began his aviation career as an intern at Trenton-Mercer in 2012 and later held airport operations positions in Richmond, Virginia, and Morristown before returning to Mercer County.
Benson said the leadership appointments were intended to provide the airport with the experience and management needed to oversee its continued growth.
“Trenton-Mercer Airport is at an important point in its evolution and requires focused, accountable leadership,” Benson said when the appointments were announced.
The combination of new routes, additional airline service and the planned terminal replacement reflects the county’s effort to position Trenton-Mercer as a convenient alternative for travelers in central New Jersey and neighboring Pennsylvania.
Tickets and schedules for Allegiant’s new Orlando Sanford service are available at allegiantair.com. Information about Breeze’s routes is available at flybreeze.com.
