$45+ 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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
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.Cheapflights Tip: The best prices from Riverside to San Diego are usually found in January or July, 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 April 17, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $100 (eDestinos) |
One-way from | $45 (FlightHub) |
Popular in | February |
Cheapest in | January |
Average price | $213 |
Find flight deals from Riverside to San Diego
Cheapest flights from Riverside to San DiegoExplore 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 April 17, 2025.
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 April 17, 2025.
This eDestinos deal was found by Cheapflights users on 4/17. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Expedia deal was found by Cheapflights users on 4/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 4/17. 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.
This Kissandfly.com deal was found by Cheapflights users on 4/17. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 4/17. 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.
This American Airlines deal was found by Cheapflights users on 4/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cheapflights Fare Finder
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 April 17, 2025.
Use the filters below to find and compare flights from Riverside to San Diego that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Los AngelesSan Diego
LAX - SAN
LAXSAN
Los Angeles
Thu 5/8
6:00 am-6:03 pm
1 stop12h 03m
San Diego
Tue 5/13
6:15 am-2:06 pm
1 stop7h 51m
Los AngelesSan Diego
LAX - SAN
LAXSAN
Los Angeles
Sat 5/31
6:52 pm-11:56 pm
1 stop5h 04m
San Diego
Mon 6/30
9:32 pm-7:20 am
1 stop9h 48m
Los AngelesSan Diego
LAX - SAN
LAXSAN
Los Angeles
Fri 5/16
10:17 pm-11:11 pm
Nonstop0h 54m
San Diego
Fri 5/23
6:15 am-7:28 am
Nonstop1h 13m
Los AngelesSan Diego
LAX - SAN
LAXSAN
Los Angeles
Thu 5/1
8:30 am-9:35 am
Nonstop1h 05m
San Diego
Thu 5/8
7:25 pm-8:31 pm
Nonstop1h 06m
Los AngelesSan Diego
LAX - SAN
LAXSAN
Los Angeles
Tue 6/10
8:45 am-5:52 pm
1 stop9h 07m
San Diego
Tue 6/10
10:15 pm-7:34 am
1 stop9h 19m
Los AngelesSan Diego
LAX - SAN
LAXSAN
Los Angeles
Thu 5/8
8:25 am-12:00 pm
1 stop3h 35m
San Diego
Sun 5/11
10:00 am-3:18 pm
1 stop5h 18m
Los AngelesSan Diego
LAX - SAN
LAXSAN
Los Angeles
Tue 5/13
6:52 pm-11:56 pm
1 stop5h 04m
Los AngelesSan Diego
LAX - SAN
LAXSAN
Los Angeles
Mon 9/22
5:46 pm-9:29 pm
1 stop3h 43m
Los AngelesSan Diego
LAX - SAN
LAXSAN
Los Angeles
Wed 5/14
9:35 am-9:36 pm
2 stops12h 01m
Los AngelesSan Diego
LAX - SAN
LAXSAN
Los Angeles
Fri 6/13
7:45 am-11:29 pm
2 stops15h 44m
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.
Cheapflights Insights
Everything you need to know about your flight from Riverside to San Diego
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 April 11, 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 April 17, 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 March 30, 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 April 17, 2025.
The most flights from R1V to SAN are scheduled on a Wednesday (45 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (29 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 April 17, 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
Comfort
Overall
Food
Crew
Entertainment
Reviews
Seleste,Dec 2024
FAT - SAN
Boarding
Comfort
Overall
Food
Crew
Entertainment
Reviews
Seleste,Dec 2024
FAT - SAN
Boarding
Comfort
Overall
Food
Crew
Entertainment
Reviews
Seleste,Dec 2024
FAT - SAN
Boarding
Comfort
Overall
Food
Crew
Entertainment
Reviews
Seleste,Dec 2024
FAT - SAN
Boarding
Comfort
Overall
Food
Crew
Entertainment
Reviews
Seleste,Dec 2024
FAT - SAN
Boarding
Comfort
Overall
Food
Crew
Entertainment
Reviews
Seleste,Dec 2024
FAT - SAN
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.
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Alternative routes for Riverside to San Diego
See prices for flight routes from nearby airports that may be better suited for you.
Top 4 airlines flying from Riverside to San Diego
Discover the top 4 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 April 17, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$64 | Average$100 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$154 | Average$209 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$159 | Average$239 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$241 | Average$598 | FlexibilityNo cancel fee | On-time75% |