The nearest major airport is McAllen-Miller International Airport (MFE / KMFE). This airport has international and domestic flights from McAllen, Texas and is 8 miles from the center of the 78503 zip code.
Another major airport is General Lucio Blanco International Airport (REX / MMRX), which has domestic flights from Reynosa, Mexico and is 22 miles from 78503.
Valley International Airport (HRL / KHRL) has domestic flights from Harlingen, Texas and is 48 miles from 78503.
Travelmath helps you find the closest airport to any city, as well as a list of smaller local airports. You can use these pages to plan your trip and figure out the easiest way to get to your destination. Many times there are multiple airports near the city you want to visit, so you can often find a cheaper flight into a different airport. This is especially useful if you are getting a rental car, since it might be better to drive a bit farther in order to save money on airfare. If you're booking an international flight, you probably want the closest major airport, otherwise if you're a pilot you may be looking for a local airport. Use this tool along with the flight distance pages to plan your travel.