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

Popular airlines from Denver, CO (APA-Centennial) to San Diego Intl. Airport (SAN)

Frequently asked questions

How much does a flight from Centennial Airport (APA) to San Diego Intl. Airport (SAN) cost?
Lock in a cheap one-way flight or cheap return flight from Centennial Airport (APA) to San Diego Intl. Airport (SAN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Centennial Airport (APA) to San Diego Intl. Airport (SAN)?
is the cheapest month to fly from APA to SAN. Traveling during quieter months is often the key to finding a great deal.
Which airlines fly direct from Centennial Airport (APA) to San Diego Intl. Airport (SAN)?
Direct flights aren't available from Denver, CO (APA-Centennial) to San Diego Intl. Airport (SAN). However, there are other airports that have nonstop flights. Hop on your plane at Denver Intl. Airport (DEN) and head straight to San Diego without a layover.
What is the cheapest airline that flies from Centennial Airport (APA) to San Diego Intl. Airport (SAN)?
Use the filter tool on Expedia to compare different airlines and find the cheapest carrier that'll fly you from APA to SAN. Then, sort your results by "Price (lowest to highest)" to score a great deal.
How many flights per day from Centennial Airport (APA) to San Diego Intl. Airport (SAN)?
You'll need to catch a flight with a layover when traveling from Centennial Airport (APA) to San Diego Intl. Airport (SAN). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from APA to SAN?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Centennial Airport (APA) to San Diego Intl. Airport (SAN)?
Choose a flight from Centennial Airport (APA) to San Diego Intl. Airport (SAN) that leaves before 3 PM to reduce the likelihood of delays. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Centennial Airport (APA) to San Diego Intl. Airport (SAN) last-minute?
Booking your plane ticket from APA to SAN shortly before your getaway is usually more expensive. But if you're flexible with your travel times and dates, you could land a cheap last-minute fare.
Is it cheaper to book an APA to SAN flight and hotel package?
You can save money by securing an APA to SAN flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. Once you've selected your preferred accommodations and flights, consider adding extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from Centennial Airport (APA) to San Diego Intl. Airport (SAN)?
You can usually reschedule or cancel your APA to SAN flight. However, if it's been more than 24 hours since booking, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Centennial
Destination airport
San Diego Intl.
Distance
834 mi

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Denver to San Diego Flights

The cheapest times to fly from Denver to San Diego

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Denver to San Diego are during the month of . You can find some of the cheapest flights from Denver to San Diego with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Denver to San Diego

Sunday is one of the best days to book for cheap flights from Denver to San Diego: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Denver to San Diego

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Denver to San Diego in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Denver to San Diego flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Denver to San Diego airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Denver to San Diego Flights

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*Available to One Key members.