Originally Posted by dzdang

I was being dumb when I originally made this post. At that time, I had thought the United/Delta flights from SFO->London were 4,000+ for economy, so I started considering the international airlines. I had thought this because if you go to Google Flights and type in a 1 way flight from SFO-> London, it's actually 2,000 for Delta or United! https://www.google.com/flights/#flt=...;sd:1;t:f;tt:o
I verified this information on United and Delta's website as well. So I thought a roundtrip was going to cost 2x2,000=4,000. But it turns out a roundtrip is actually cheaper than a 1 way flight. I've never seen this on a national flight before (it's almost always such that 2 one way tickets total a roundtrip ticket).