We'll be staying at OSL overnight between flights in July 2019, arriving on a flight that arrives at 22:50 and connecting with a flight that departs at 08:40 the next morning and we'll choose one of these two hotels. Looking at prices for the date we need there is a large difference between non-refundable and flexible rates. Is it possible / likely that prices could drop in the coming months or do they tend to stay the same most of the time? I realise if I leave it until close to the date we need that the price is likely to be higher although I've just had a look at a date 4 weeks from now and the price is a lot cheaper than it is for our July 2019 date - over $A100 (64 Euro) cheaper.