Find great value on flights from Ottawa to San Diego with CheapOair! San Diego, situated on the coast of the Pacific Ocean, is the eighth-largest city in the United States. A year-round destination, San Diego pulls travellers from different corner of the world. While on a holiday in San Diego, you can surf and sand at majestic beaches like Ocean Beach, take a closer look at the marine life and enjoy exciting rides at Sea World, try scuba diving at Wreck Alley as well as soak up the vibe of San Diego's nightlife at the Gaslamp Quarter. Whatever type of vacation you are looking for, CheapOair will help you save big on flights to San Diego!