I did some searches and mainly found talk about making connections. I'm wondering if for the most part international flights land on time.
My brother has a graduation on May 15th at 2pm in Kensington. I'm looking at some flights that land that morning. One in particular leaves around 6pm (May 14th) and lands at 9am (May 15th) at LHR. The only reason for this trip is my brother's graduation, so I do not want to miss it. Due to few vacation days I can fly in on 15th and stay the following week or fly in the Friday before, the 9th. Flying in on the 15th I am finding fares to be around $75 cheaper.
So should I trust the airlines to get me there on time or should I be extra safe and just go the Friday before? The airlines I'm looking at are Delta, Northwest, & Continental.