Big Ben and House of Parliament, London, UK, vintage effect

In spite of all its recent ups and downs, there's no denying London is an exciting place to be. Between exploring its free - yes - free - museums, sitting down for a cocktail with a view, shopping and sightseeing, the possibilities of things to explore in England's capital city are endless. If you've always wanted to visit, now's the time to do so thanks to this solid nonstop deal to London.

The best deals are with British Airways and American Airlines and generally, the best time to book is September 2017 through May 2018. There are some great Thanksgiving deals, although dates around the Christmas and New Year period tend to be more expensive. To find the cheapest available dates, search Google Flights using one of the following US cities as your departure airport and play around with dates to get these deals.

Boston (BOS) - $427
Chicago (ORD) - $525
Denver (DEN) - $427
Fort Lauderdale (FLL) - $504
Las Vegas (LAS) - $541
Los Angeles (LAX) - $541
Miami (MIA) - $541
New York City (EWR) - $521
New York City (JFK) - $484
Oakland (OAK) - $464
San Francisco (SFO) - $505
San Jose (SJC) - $505
Seattle (SEA) - $541

This is a nonstop return flight deal but is only expected to last a few days, so you should book quickly to avoid missing out.