Originally Posted by
Winkdaddy
CO is best in class when it comes to their website and award booking engine. Its eons ahead of Delta's piece of crap that doesn't work.
You are right about DL's horrible booking engine, but actually NWA.com beats them both, you can even use itto book award tickets on partners when your outbound is not in the US. Like GVA-FCO for example, try that on CO.com.
Recently I tried booking a multicity on CO.com also, and got an error message that I'd have to call reservations...even when I was able to pull up the flights on orbitz.com.