United Airlines: East Coast USA to San Diego – $175 roundtrip Flight Deals by Erika - March 10, 2016 Fly from either New York, Miami or Atlanta with United Airlines to San Diego for only $175 roundtrip. Available during April and May. Recommend to book via Expedia or Orbitz. Related Share this article Share on Facebook Share 0 Share on TwitterTweet Share on Pinterest Share 0 Share on LinkedIn Share Send email Mail