Newbie here - apologies if I am in the wrong place. We are taking the kiddos (11, 12, 16) to Europe for spring break. I have 153k AA miles and my wife has 199k miles. We live in AZ. Our plan is to fly into LHR on MAR 7 (PHX to LAX to LHR) for 112,500 miles + $28. Then return from Milan MAR 20 (MXP to JFK to ORD to PHX) for 150,000 miles + $278 (taxes). Do we book online (two one-ways using my miles outbound and my wife's inbound) or do a phone reservation (phone fee?)? Any way to use the $100 flight discount we both have to cover the taxes or do something else useful? We are doing one carry-on each. Thanks so much for any advice.