Cheap Flights from Denver (DEN) to San Diego (SAN)

Round-trip journeys between DIA airport and SAN start from . This is based on fares offered within the last 7 days on Expedia for flights departing within the next year — book today to avoid missing out. Prices and availability are subject to change. Additional terms apply.

Each air carrier has its own set of terms and conditions. If you do decide to cancel, follow the easy instructions on our Customer Service Portal.

Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for DEN to San Diego Intl. Airport (SAN) flights, you’ll see a “no change fees” filter for you to select.

A flight distance of just 1,350 kilometres separates Denver and San Diego. Once you’re in the air, you won’t have time to do much more than listen to some short podcasts.

Southwest Airlines (WN) is one of the preferred choices for travellers jetting between DIA airport and San Diego Airport. Choose from the 191 flights it operates on this route each month. Operating 152 flights each month along this route, United Airlines (UA) is another good option.

Airline tickets from Denver Airport to SAN are available up to 12 months before departure on Expedia. And although you may occasionally score fantastic last-minute deals, it’s not something you should count on. Also, booking your flights ahead of time means you’ll have more options — and you can avoid ending up with the dreaded middle seat! We’re constantly updating our fares to make sure you get the biggest bargains, so check back often for all the latest specials.