Cheap Flights from Riverside (RAL) to San Diego (SAN)

Popular airlines from Riverside, CA (RAL-Riverside Municipal) to San Diego Intl. Airport (SAN)

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Frequently asked questions

How much does a flight from Riverside, CA (RAL-Riverside Municipal) to San Diego Intl. Airport (SAN) cost?
Secure a cheap one-way flight or cheap return flight from Riverside, CA (RAL-Riverside Municipal) to San Diego Intl. Airport (SAN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Riverside, CA (RAL-Riverside Municipal) to San Diego Intl. Airport (SAN)?
Flying in is a great way to save, as it's the cheapest month for flights between RAL and SAN. You'll often find the lowest fares during the off-season.
What is the cheapest airline that flies from Riverside, CA (RAL-Riverside Municipal) to San Diego Intl. Airport (SAN)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll fly you from RAL to SAN. Then, sort your results by "Price (lowest to highest)" to pick up a great deal.
How many flights per day from Riverside, CA (RAL-Riverside Municipal) to San Diego Intl. Airport (SAN)?
Nonstop flights from Riverside, CA (RAL-Riverside Municipal) to San Diego Intl. Airport (SAN) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from RAL 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 Riverside, CA (RAL-Riverside Municipal) to San Diego Intl. Airport (SAN)?
To touch down at San Diego Intl. Airport (SAN) on schedule, select a flight that takes off from Riverside, CA (RAL-Riverside Municipal) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Riverside, CA (RAL-Riverside Municipal) to San Diego Intl. Airport (SAN) last-minute?
Booking your ticket from RAL to SAN shortly before your trip is typically more expensive. However, if you're flexible with your travel dates and times, you could grab a cheap last-minute fare.
Is it cheaper to book a RAL to SAN flight and hotel package?
Compared with arranging hotels and flights separately, booking a RAL to SAN flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one place will take the stress out of planning your trip. Just secure your flights and choose from our extensive range of stays, then customize your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Riverside, CA (RAL-Riverside Municipal) to San Diego Intl. Airport (SAN)?
If you reserved your RAL to SAN flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of fare you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

Travel information

Origin airport
Riverside Municipal
Destination airport
San Diego Intl.
Distance
85 mi

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Riverside to San Diego Flights

The cheapest times to fly from Riverside 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 Riverside to San Diego are during the month of . You can find some of the cheapest flights from Riverside to San Diego with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Riverside 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 Riverside 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 Riverside to San Diego in 2026. 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 Riverside 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 Riverside 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.

 

Riverside to San Diego Flights
*Available to One Key members.