Allegiant Air flights to San Diego

Travellers and cabin class

The best Allegiant Air flight deals to San Diego

Looking for a last minute deal or the best direct flight? Find the biggest savings on one-way and return trips to San Diego with Allegiant Air.

Find which San Diego airports Allegiant Air flies to

Compare routes to San Diego below. You may find an airport to fly into that's cheaper, faster, or easier.

Flying to San Diego with Allegiant Air: FAQs

Allegiant Air currently also flies to Orlando Sanford, St. Pete–Clearwater International and Punta Gorda.