I need to fly from London to Frankfurt in late January. I'll be travelling solo, and will have a bag that needs checking. Staying in Bloomsbury right by BM.

While LCY seems a little closer, if I book Business for about $100 more, I get an empty seat next to me and use of the Lounges/Fasttrack at Heathrow.

It's a really short flight, and both seating options aren't very good (took it in reverse in August), but my biggest concern are delays (winter weather)...obviously much nicer to hang out in Lounge at LHR as there is none in LCY.

Anyone care to make the decision for me? Economy plus out of LCY or Business out of LHR?

Thanks.

PS. I assume I should book it now as prices will only go up? It's not refundable, and change fees are nearly the price of the ticket!