A rendering of Appleton International Airport's concourse expansion project. (Photo courtesy of Appleton International Airport)
GREENVILLE, WI (WTAQ-WLUK) — The fastest growing airport in Wisconsin is about to get bigger.
Appleton International Airport is embarking on a $66 million expansion that will more than double its size.
The airport will break ground on the 47,000 square-foot expansion of the main concourse Wednesday afternoon.
The first phase of the terminal expansion will include:
- The gate area will be expanded bringing the total number of gates to 10.
- There will be a connector between the existing gates and new gates, plus expanded areas for passenger boarding and a variety of seating options.
- There will be a Biergarten and an additional bar/restaurant in the gate area for ticketed passengers.
- Ramps will be used throughout to ensure easy access for all people regardless of abilities.
- Passenger comfort is a primary goal, so there will be expanded restroom facilities, a sensory support room, a quiet room, and a service animal relief area.
Future construction phases will expand ticketing and baggage claim areas and refresh existing concourse areas in the airport.
“This day is the beginning of the future of air travel for Northeast Wisconsin,” said Appleton Airport Director Abe Weber. “We are on pace to serve an anticipated 948,000 arrivals and departures by the end of this year and an expansion such as this will help us easily top the one-million mark.” According to Weber, all upgrades to the airport will support four main areas: connecting communities in Northeast Wisconsin, inspiring innovation in air travel, environmental stewardship, and delivering exceptional customer experiences.
The funding for the expansion is from a combination of state, federal and regional grants and budgeted dollars.
The Appleton Airport is served by American, Delta, and United airlines and is the only Wisconsin airport served by Allegiant Airlines. These carriers offer non-stop service to 17 locations including:
- Newark, New Jersey
- Portland, Oregon
- Phoenix/Mesa, Arizona
- Nashville, Tennessee
- Las Vegas, Nevada
- Savannah/Hilton Head, Georgia
- Flights to Florida include Ft. Lauderdale/Miami, Orlando/Daytona Beach, Tampa/St. Petersburg, Sarasota/Bradenton, Ft. Meyers/Punta Gorda
- Atlanta, Georgia
- Charlotte, North Carolina
- Chicago, Illinois
- Minneapolis/St. Paul, Minnesota
- Detroit, Michigan
- Denver, Colorado
The expansion is expected to be complete in late 2025.



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