Flight
You may also choose to fly into LAX or Santa Ana (SNA), but both will be a considerable drive to Oceanside (1-2hrs). We HIGHLY RECOMMEND flying into San Diego (SAN) and then taking the scenic Pacific Surfliner train to Oceanside.
Train
To get to Oceanside without a car, take the Pacific Surfliner from the San Diego Old Town Transportation Center to Oceanside, CA. You can access the Transportation Center via bus from the airport, the train ride is 45-60min long and round trip tickets are ~$35. The train runs by the ocean and has a gorgeous view of the coastline the entire time. We recommend booking hotels near downtown/the beach, as many are walkable distance from the Oceanside Train Depot. From there, our venue is a 15-20min rideshare away - many guests will likely carpool and can coordinate after arrival. https://maps.app.goo.gl/6M3a9bSVRxT7TNP66
Travel Note
Best Western Oceanside Inn: a low-budget option a 5-10min drive from downtown - Bestwestern.com/en_US/book/oceanside/hotel-rooms/best-western-oceanside-inn/propertyCode.05667.html The Fin Hotel: a budget option in the heart of downtown, walkable to the beach - Hilton.com/en/hotels/ocnbwup-the-fin-hotel/ SpringHill Suites by Marriott Oceanside Beach: a mid-tier option with multiple room layouts available and a swimming pool with an ocean view - Marriott.com/en-us/hotels/sanod-springhill-suites-oceanside-beach/overview/ The Seabird Ocean Resort & Spa: a luxury resort with the beach just steps away - Hyatt.com/destination-by-hyatt/en-US/sando-the-seabird-ocean-resort-spa