You can get to Reynosa by plane, car, or bus.
By plane
Reynosa's small regional airport is General Lucio Blanco Airport IATA: REX, it is located about 5 miles southeast of downtown on Mexico Highway 2 also known as "Libramiento Monterrey" at this point. The airport handles domestic flights only and is served by three carriers: Alma, Volaris, and Click Mexicana.
U.S. passengers can fly into neighboring McAllen IATA: MFE, which is served by Allegiant, Continental and American, and then take a taxi or city bus to the Hidalgo border crossing.
By car
From points in south Texas, take U.S. 83 to McAllen and then exit at 23rd Street route 115 and head south about 6 miles to the international bridge checkpoint at Hidalgo.
From points in Mexico:
Mexico Highway 2 runs parallel to the border and can be used to reach Reynosa from other border cities.
Mexico Highway 40 toll road can be used to reach Reynosa via Monterrey. The toll is 180 pesos.
The Aduana office to get car import permits is on Alvaro Obregon, just a few blocks to the left as you cross into Reynosa go left on Miguel Aleman --- it turns into Obregon --- the office is on your left just after you round the bend.