Frontier Airlines SAN Terminal +1-888-839-0502 I had a good experience flying with Frontier Airlines SAN Terminal. I had no trouble checking in, and I didn't have to wait in line at security. There were cozy places to sit and unwind before my trip in the spotless terminal. Additionally, I was impressed by how fast the boarding process was. Traveling with Frontier Airlines was simple, and I started my trip off well at SAN Terminal. For more : https://www.terminalfind.com/frontier-airlines/frontier-airlines-san-terminal-san-diego-international-airport/