San Diego

$35+ Cheap flights from Riverside, CA to San Diego (SAN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SAN
Feb 27 — Mar 61
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Riverside to San Diego with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

The best prices from Riverside to San Diego are usually found in January or August, booked 77 days in advance, depart on a Thursday or Wednesday and return on a Friday

Cheap flight deals from Riverside to San Diego

Keep the following information in mind while searching for Riverside to San Diego flight deals. Data was last updated February 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$72
(Cheapflightsfares)

One-way from

$35
(FlightHub)

Popular in

February

Cheapest in

January

Average price

$257
Provider with most accurate pricing for Los Angeles-San Diego flight deals.
Provider most trusted by Cheapflights users for Los Angeles-San Diego flights.
From Riverside to San Diego
One-way flight from Riverside to San Diego
Highest demand for flights based on searches. 0% potential increase in price ($2 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Average for round-trip flights in February 2025

Find flight deals from Riverside to San Diego

Cheapest flights from Riverside to San Diego
Explore the most affordable flight options available from Riverside to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 22, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/146:00 amLAX - SAN
1 stop3h 49mSpirit Airlines
Mon 3/176:15 amSAN - LAX
1 stop12h 44mSpirit Airlines
Deal found 2/21$72
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/149:17 amLAX - SAN
Nonstop0h 58mDelta
Sun 3/166:15 amSAN - LAX
Nonstop1h 10mDelta
Deal found 2/21$179
This United Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/78:15 amLAX - SAN
Nonstop0h 58mUnited Airlines
Fri 3/148:49 pmSAN - LAX
Nonstop1h 06mUnited Airlines
Deal found 2/21$184
This Mytrip deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/24:53 pmLAX - SAN
2 stops16h 48mMultiple Airlines
Sat 4/510:36 amSAN - LAX
2 stops20h 58mMultiple Airlines
Deal found 2/20$185
This Alaska Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/227:55 pmLAX - SAN
1 stop13h 16mAlaska Airlines
Wed 4/210:23 amSAN - LAX
2 stops9h 50mAlaska Airlines
Deal found 2/21$208

Find flights from Riverside to San Diego within your budget

Customize your flight search to find flights from Riverside to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 22, 2025.

Fly from

Riverside

Fly to

San Diego

Route

Depart

Return

Price

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

Fri 3/14

6:00 am-9:49 am

1 stop3h 49m

San Diego

Mon 3/17

6:15 am-6:59 pm

1 stop12h 44m

$72

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

Fri 3/14

9:17 am-10:15 am

Nonstop0h 58m

San Diego

Sun 3/16

6:15 am-7:25 am

Nonstop1h 10m

$179

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

Fri 3/7

8:15 am-9:13 am

Nonstop0h 58m

San Diego

Fri 3/14

8:49 pm-9:55 pm

Nonstop1h 06m

$184

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

Wed 4/2

4:53 pm-9:41 am

2 stops16h 48m

San Diego

Sat 4/5

10:36 am-7:34 am

2 stops20h 58m

$185

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

Sat 3/22

7:55 pm-9:11 am

1 stop13h 16m

San Diego

Wed 4/2

10:23 am-8:13 pm

2 stops9h 50m

$208

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

Mon 4/7

5:52 am-9:41 am

1 stop3h 49m

$35

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

Mon 5/19

10:31 am-6:26 pm

1 stop7h 55m

$117

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

Thu 4/24

5:45 pm-11:59 pm

1 stop6h 14m

$121

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

Sun 3/23

7:00 am-10:20 pm

1 stop15h 20m

$137

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

Thu 5/22

6:46 pm-10:20 am

1 stop15h 34m

$138

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/22

Showing 1-10 of 13 results
1
2

Best time to book a flight from Riverside to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Riverside with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Riverside to San Diego

Get recent, data-driven insights about flights from Riverside to San Diego including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Riverside to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from Riverside to San Diego. Price data was last updated on February 14, 2025.

Booking 63 days in advance of your planned departure date is, on average, the best time to get cheap flights from Riverside to San Diego. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Riverside to San Diego?

Currently, August is the cheapest month in which you can book a flight from Riverside to San Diego (average of $286). Flying from Riverside to San Diego in March is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from R1V to SAN?

Find hourly flight availability from Riverside to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 22, 2025.

When flying from Riverside to San Diego, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Riverside to San Diego?

Use this chart to determine the cheapest time to fly round-trip from Riverside to San Diego. Price data was last updated on February 16, 2025.

Travelers seeking maximum savings on their Riverside to San Diego flight should consider departing on Sunday evenings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Riverside to San Diego

Explore weekly flight availability from Riverside to San Diego. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 22, 2025.

The most flights from R1V to SAN are scheduled on a Friday (39 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (21 on average).

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated February 22, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta and United Airlines from Riverside to San Diego. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

8.0
Very good

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Related info for your journey

Find useful and relevant information for your journey from Riverside to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to San Diego from Riverside?

    San Diego (SAN) is the airport you will fly into if you book a flight from Riverside to San Diego. You should not have trouble finding flights to San Diego from Riverside; the airport handles an average of 33 inbound flights from Riverside per day. You should also have plenty of airline options to choose from since 3 airlines have flights to the San Diego airport from Riverside. It is only a 2.6 mi journey from San Diego (SAN) to San Diego’s city center.

  • How popular is this Riverside to San Diego flight route?

  • What are the cheapest airlines to fly from Riverside to San Diego one-way?

    The cheapest airlines for a one-way flight from Riverside to San Diego are Spirit Airlines ($35), Delta ($102), and American Airlines ($117).

  • What are the most reliable airlines from Riverside to San Diego?

    Before booking your flight to San Diego from Riverside, check out the most reliable airlines to get you to your destination on time: Copa Airlines (92%), ANA (92%), Lufthansa( 91%).

  • What are the cheapest flights from Riverside to San Diego?

    The cheapest flight price from Riverside to San Diego is $179. On average you can expect to pay $246. The most popular route, (Los Angeles - San Diego), can usually be booked for $72.

  • Can I find deals for flights from Riverside to San Diego that include hotel bookings?

    Yes. In addition to deals on Riverside to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Riverside to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Riverside to San Diego.

  • Can I find deals for business class flights from Riverside to San Diego?

    Yes. Cheapflights offers flight deals from Riverside to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Riverside to San Diego?

    Currently, August is the cheapest month in which you can book a flight from Riverside to San Diego (average of $286). Flying from Riverside to San Diego in March is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Riverside?

Book flights to Riverside if you plan to visit one of these locations
El Cajon
Chula Vista
Lemon Grove
National City
Imperial Beach
La Mesa
Alpine
Poway
Santee
Coronado
Borrego Springs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Riverside to San Diego

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Riverside to San Diego

Discover the top 3 airlines that operate flights from Riverside to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$64Average$96FlexibilityNo cancel feeOn-time65%
DeltaCheapest$154Average$212FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$158Average$241FlexibilityNo cancel feeOn-time69%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.