Question : How long do most people visit Las Palmas?
Answer : Of course you're not most people, but if you were, you'd stay roughly three days.
Question : Is LaGuardia Airport (LGA) the cheapest airport for getting to Gran Canaria Airport (LPA)?
Answer : Departing from LaGuardia Airport is not the only way to get to Gran Canaria Airport. Try looking for flights from John F. Kennedy International Airport (JFK) as well. Over the next two months, flights from JFK to LPA are being priced 14% cheaper than flights from LGA to LPA. Being only 10 miles away, it's easily accessible for most.