Very helpful [MENTION=220532]daloosh[/MENTION], thanks. Do you have any guidelines on the costs for C+ seats? On JetBlue, for example, it's usually ~$95 for their Even More Space seats on a JFK-SFO route, and ~$25 for something shorter like PWM-JFK. I assume C+ is more expensive, but I'm curious by how much.

On a mostly unrelated note, I'm curious about how people have found Delta's international fares in general. That would theoretically be an advantage for me in that JetBlue doesn't have routes to Europe, but I was pretty shocked to discover that a Boston to London roundtrip route in late Jan that I make every year was ~$400 on Norwegian, ~$800 on Aer Lingus but ~$2300 on Delta. Is that normal?