Find great value on Frontier Airlines flights from DEN to SNA when you book with CheapOair! Singled out from Los Angeles in 1889, Santa Ana is home to a number of attractions, universities and museums. If you are traveling to Santa Ana with family, the Santa Ana Zoo is the perfect option for you to spend a day with your family. The Discovery Science Center offers hands-on-exhibits that are capable of engaging people of all ages. For a historical and cultural treat make way to the Heritage Museum of Orange County, the museum is known for its exhibits and highlights expensive historic homes. Due to its close proximity of the John Wayne Airport, travelers have the ease to travel to downtown Santa Ana.