If you're still making plans, note that March 10 is expected to be the most popular day to fly.
But if you want to be at party central, Florida remains the most popular state for a spring break getaway. It claimed four spots among the 10 most popular U.S. destinations.
After theme-park capital Orlando, they are:
4. Fort Lauderdale, Fla.
5. Las Vegas
6. Fort Myers, Fla.
7. New York City
8. Los Angeles
The most popular international vacation spots are in Mexico and the Caribbean. After Cancun, they are:
2. San Jose del Cabo, Mexico
3. Puerto Vallarta, Mexico
4. Higuey, Dominican Republic
5. Montego Bay, Jamaica
7. Nassau, Bahamas
8. Turks and Caicos Islands
9. Cayman Islands
10. London, the sole European city to make the list.
Also, U.S. spring break vacations are on average five days long; international trips, eight days long.
Allianz looked at data for travelers who had booked airfare and vacation packages through the travel companies with which it partners.