If you're thinking of taking cheap business class flights to New York in order to hit the Big Apple during the post-Christmas sales, there are a few places where you can be almost certain of picking up a bargain or two.

Just like the UK, Manhattan is home to plenty of great deals once the festive period is over, as retailers look to sell off the remainder of the stock they brought in ahead of the season.

In addition to wanting to profit on the amount they purchased to cover the additional demand often shown by customers preparing for Christmas, stores may also be keen to make room for the spring arrivals.

This is particularly the case with fashion items and, if you are looking for a beautiful party dress, now is the time to buy one. While frocks may have been marked up before the holiday as stores predict women will be looking to splash out on a special garment to wear to a Christmas party, after the big day is over it may be some time before they do so again.

Why not buy your dress for next Christmas now? If you choose a classic style it will still be on-trend next year and you'll have saved some money. SYMS is a good place to go as it sells designer labels at discounted prices – and that's before the post-Christmas sale.

Many of the other major department stores in the Big Apple, such as Saks Fifth Avenue, Bloomingdale's and Macy's are also likely to have sales on, so it is worth heading here to look for bargains if you're limited for time.

As well as clothing, you might also wish to stock up on toys and electrical goods. There's a chance many shops over-ordered before Christmas and may be keen to sell off the excess now.

Check out FAO Schwarz, the most famous toy store in the city, where you might be able to get some great discounted treats to give your kids for their birthdays.

If you really want to treat yourself after flying business class to USA, have a look in Zales, the diamond retailer. You will find some gems of exquisite quality here, but you may not have to fork out as much cash as you would at Tiffany & Co.

Keep an eye on your spending during holidays to New York, as you may discover you have gone over your spending allowance, which could see you having to pay duty once you return to the UK.