Hi everyone 
I am in Western Australia and I am in a long distance relationship with and American who lives in Oklahoma. I'm just trying to plan my 2 trips for next year. This year I went in April and September. I flew United in April and Qantas in September. Next year I'm looking at Mid March and Boxing Day. I'm wondering if I should book March now or wait and see if there is a Qantas Boxing Day sale. Is this something they do every year? I'm worried about leaving it another month to book and then having to pay a few hundred more. I'm looking at around 3k for PER-DFW with Qantas at the moment. My partner will drive down and pick me up as adding the OKC leg adds on hundreds more.
I also was wondering when the best time to book December flights is? I'm wanting to leave Boxing Day 2023 for my second trip. Will it be best to book as soon as they are released?
Many thanks everyone.

I am in Western Australia and I am in a long distance relationship with and American who lives in Oklahoma. I'm just trying to plan my 2 trips for next year. This year I went in April and September. I flew United in April and Qantas in September. Next year I'm looking at Mid March and Boxing Day. I'm wondering if I should book March now or wait and see if there is a Qantas Boxing Day sale. Is this something they do every year? I'm worried about leaving it another month to book and then having to pay a few hundred more. I'm looking at around 3k for PER-DFW with Qantas at the moment. My partner will drive down and pick me up as adding the OKC leg adds on hundreds more.
I also was wondering when the best time to book December flights is? I'm wanting to leave Boxing Day 2023 for my second trip. Will it be best to book as soon as they are released?
Many thanks everyone.