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Cheap Flights to San Diego

Perfect weather, laid-back vibes & surprisingly affordable flights

Flight Deals to San Diego

San Diego International (SAN) is a single-runway airport just minutes from downtown, served heavily by Southwest and Alaska alongside the major legacy carriers. While it lacks a dominant hub, strong leisure demand and Southwest's large presence keep fares reasonable, especially from the West Coast. Year-round mild weather means demand is steady, so the best deals come from flexibility and watching for Southwest and Alaska sales.

Best Time to Fly to San Diego

January through March and the September-October shoulder offer the lowest fares. Avoid summer, when beach season pushes prices to their annual peak.

This Week's Picks

See What You're Missing

Real deals from this week - subscribers get these and more, every Friday.

£471 London to San Francisco + 14 more deals
🇬🇧From London

£471 London to San Francisco + 14 more deals

This week: direct flights to San Francisco from £471, Barcelona from £65, Singapore from £659, and Business Class deals unlocked for Premium members. Up to 56% below typical prices.

Oct 10
77% off San Francisco → Las Vegas ($38)$38
🇺🇸From San Francisco

77% off San Francisco → Las Vegas ($38)

OAK → Las Vegas for just $38 round-trip - 77% below the typical $164 median - plus SFO → Cancun for $335 (75% off) and SFO → Tokyo for $708.

Oct 9
77% off Los Angeles → Seattle ($38)$38
🇺🇸From Los Angeles

77% off Los Angeles → Seattle ($38)

LAX to Seattle for just $38 round-trip - 77% below the typical $165 median - plus Tokyo Narita for $663 (64% off) and Los Cabos for $340 (50% off) direct from LAX.

Oct 9

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Tips for Finding Cheap Flights to San Diego

Fly to San Diego From

🇺🇸San Francisco→🇺🇸Los Angeles→🇺🇸Seattle→🇺🇸New York→🇺🇸Chicago→🇺🇸Denver→🇺🇸Dallas→🇺🇸Phoenix→

Other Popular Destinations

⛱️Flights to Fort Lauderdale→🌅Flights to Tampa→🦞Flights to Boston→🎸Flights to Nashville→🌉Flights to San Francisco→🍑Flights to Atlanta→

Frequently Asked Questions

When are flights to San Diego cheapest?

January through March is the cheapest window, with roundtrip fares from the West Coast dropping to $80-130 and transcon fares to $200-280. The fall shoulder season is also a bargain. Summer beach season, June through August, is the most expensive time to fly.

Which airlines fly cheapest to San Diego?

Southwest and Alaska have the largest presence at SAN and run frequent sales, making them the go-to for low fares. Delta, American, and United also serve the airport, and budget carriers occasionally add routes, so comparing across airlines pays off.

Is San Diego or Los Angeles cheaper to fly into?

Los Angeles usually has slightly cheaper fares due to its many competing airports and ultra-low-cost carriers. But San Diego's central airport saves time and ground-transport costs. If your trip is in the San Diego area, the small fare difference is often worth flying direct to SAN.

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