What is the farthest point in either direction that New American flies? That might be a start. How do your zeds work? Are most of yours ezeds or do you need to buy paper?
I'm guessing you're young party guys if you're gong to Pattaya? Do yourself a favor and spend time in tripadvisor forums, as well some ex-pat forums like:
Asia Travel Forums - Travel Forum
Be aware of scams in BKK region. Thai people are wonderful but the unsavory element can ruin your vacation. Be well-informed. Our buddies went to Laos last year and enjoyed the experience--quite different from Thailand.Ours flew Daytona and SFO to NRT, then BKK. Did their own travel via LCCs and one did some river cruise and bus (our adventurer).
Lots of others w/your system can advise best options for AA and zeds.