I've experienced flights delays due to heavy snow in North America, and spent 24 hours stuck at Schippol due to a missed connection and no European visa.

They've got to be having fun and games at European airports with this little snag right now
A huge ash cloud from an Icelandic volcano caused air travel chaos across Europe and beyond on Friday, leaving hundreds of thousands of passengers stranded.

Most of Britain's airspace will remain closed to all but emergency flights until at least 6pm GMT on Friday due to the dangers posed by clouds of volcanic ash from Iceland, aviation officials said.
full story from M&G here