This may be a small village event, maybe check with the organisers if you are an aviation enthusiast
There are lots of websites that probably have more information on particular events happening to comemorate WW1 and also the visit of the Canadian Lancaster Bomber Aircraft.
However this weekend in Lincs apparently there is a Memorial being unveiled with a flypast of the two Lancaster Bombers, (see the facebook link on the sidebar for photos of them and RAF Waddington Facebook & twitter), obviously any Flypast is subject to the weather.
This link has a calendar for more events and there may be an official calendar on the RAF Waddington link.
The East Lincs Memorial & Dedication at RAF Strubby info was reported here (there is a share link on their post)
and there’s a poster on this Facebook
The nearby Village of Alford has a Summer Fair – info on the blog facebook link.
More RAF interesting info –
The RAF Museum at Cosford has lots of information on Aircraft, its in Staffordshire and is open seven days a week with free Admission.