Using Miles to Reduce Flight Cost

Hello!
I think the answer's 'no', but I thought I'd ask the gurus here anyway.
I have 51496 miles. Looking to book a PE flight to LAX, returning from New York. I can ask the site to use my miles along with cash. When I do that, it uses a few of the miles (7500 per adult) and asks me to pay £990. This is fine but I was wondering if there's a way to spend more of the miles or if there's a way to save more money? My travel dates are fixed in September.
Thanks for any input, much appreciated
I think the answer's 'no', but I thought I'd ask the gurus here anyway.
I have 51496 miles. Looking to book a PE flight to LAX, returning from New York. I can ask the site to use my miles along with cash. When I do that, it uses a few of the miles (7500 per adult) and asks me to pay £990. This is fine but I was wondering if there's a way to spend more of the miles or if there's a way to save more money? My travel dates are fixed in September.
Thanks for any input, much appreciated
