$54+ 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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SAN
May 3 — May 101
Round-trip
1 adult, Economy
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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 February or July, booked 23 days in advance, depart on a Thursday or Wednesday and return on a Thursday
Cheap flight deals from Riverside to San Diego
Cheapest
Best
Last-minute
One-way
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 3, 2026.
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 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/283:49 pm
LAX
- SAN
1 stop19h 45m
Frontier
Tue 5/54:17 pm
SAN
- LAX
1 stop5h 08m
Frontier
Deal found 3/31![Frontier logo]()
$104
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/610:20 pm
LAX
- SAN
1 stop14h 23m
Frontier
Mon 5/111:38 pm
SAN
- LAX
1 stop7h 47m
Frontier
Deal found 3/31![Frontier logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2710:59 pm
LAX
- SAN
1 stop14h 30m
Frontier
Mon 5/48:38 am
SAN
- LAX
1 stop13h 26m
Frontier
Deal found 3/30![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/310:59 pm
LAX
- SAN
1 stop8h 47m
Frontier
Wed 5/64:17 pm
SAN
- LAX
1 stop5h 08m
Frontier
Deal found 3/31![Frontier logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1510:20 pm
LAX
- SAN
1 stop19h 39m
Frontier
Mon 5/181:38 pm
SAN
- LAX
1 stop7h 47m
Frontier
Deal found 3/31![Frontier logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/288:00 am
LAX
- SAN
1 stop12h 04m
Frontier
Wed 4/298:00 am
SAN
- LAX
1 stop15h 14m
Frontier
Deal found 4/1![Frontier logo]()
$136
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/232:44 pm
LAX
- SAN
1 stop9h 15m
Frontier
Sun 4/266:56 pm
SAN
- LAX
1 stop27h 08m
Frontier
Deal found 4/1![Frontier logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:55 am
LAX
- SAN
1 stop8h 59m
Frontier
Mon 5/48:38 am
SAN
- LAX
1 stop13h 26m
Frontier
Deal found 3/31![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 3/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/210:20 pm
LAX
- SAN
1 stop17h 11m
Frontier
Mon 6/810:07 pm
SAN
- LAX
1 stop21h 13m
Frontier
Deal found 3/28![Frontier logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/610:20 pm
LAX
- SAN
1 stop14h 23m
Frontier
Sat 5/166:25 am
SAN
- LAX
1 stop17h 51m
Frontier
Deal found 3/29![Frontier logo]()
$141
Best flights from Riverside to San DiegoDiscover carefully curated flight deals from Riverside to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 3, 2026.
Discover carefully curated flight deals from Riverside to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/212:02 pm
LAX
- SAN
2 stops11h 45m
Multiple Airlines
Mon 6/81:38 pm
SAN
- LAX
1 stop7h 47m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$196
This Alaska Airlines deal was found by Cheapflights users on 3/31. 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.
Tue 5/56:13 am
LAX
- SAN
1 stop6h 46m
Alaska Airlines
Tue 5/53:35 pm
SAN
- LAX
1 stop5h 39m
Alaska Airlines
Deal found 3/31![Alaska Airlines logo]()
$217
This Delta deal was found by Cheapflights users on 3/29. 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.
Sat 4/188:28 am
LAX
- SAN
Nonstop0h 56m
Delta
Sat 4/2510:05 am
SAN
- LAX
Nonstop1h 09m
Delta
Deal found 3/29![Delta logo]()
$239
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Thu 6/49:00 am
LAX
- SAN
Nonstop1h 08m
United Airlines
Sun 6/78:32 pm
SAN
- LAX
Nonstop1h 13m
United Airlines
Deal found 3/30![United Airlines logo]()
$239
This Delta deal was found by Cheapflights users on 3/30. 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.
Thu 5/149:25 am
LAX
- SAN
Nonstop0h 54m
Delta
Thu 5/216:15 am
SAN
- LAX
Nonstop1h 18m
Delta
Deal found 3/30![Delta logo]()
$239
This Delta deal was found by Cheapflights users on 3/31. 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 5/1510:20 pm
LAX
- SAN
Nonstop0h 55m
Delta
Mon 5/1810:59 am
SAN
- LAX
Nonstop1h 09m
Delta
Deal found 3/31![Delta logo]()
$239
This Delta deal was found by Cheapflights users on 4/2. 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 5/18:28 am
LAX
- SAN
Nonstop0h 56m
Delta
Fri 5/83:15 pm
SAN
- LAX
Nonstop1h 00m
Delta
Deal found 4/2![Delta logo]()
$239
This Delta deal was found by Cheapflights users on 3/29. 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.
Thu 4/236:10 pm
LAX
- SAN
Nonstop0h 54m
Delta
Sun 4/267:45 pm
SAN
- LAX
Nonstop1h 05m
Delta
Deal found 3/29![Delta logo]()
$239
This Delta deal was found by Cheapflights users on 3/28. 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.
Sat 4/188:28 am
LAX
- SAN
Nonstop0h 56m
Delta
Sun 4/197:45 pm
SAN
- LAX
Nonstop1h 05m
Delta
Deal found 3/28![Delta logo]()
$239
Last-minute flights from Riverside to San DiegoDiscover last-minute flight deals from Riverside to San Diego. Data last updated April 3, 2026 and is based on user searches.
Discover last-minute flight deals from Riverside to San Diego. Data last updated April 3, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/232:44 pm
LAX
- SAN
1 stop9h 15m
Frontier
Sun 4/266:56 pm
SAN
- LAX
1 stop27h 08m
Frontier
Deal found 4/1![Frontier logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2710:59 pm
LAX
- SAN
1 stop14h 30m
Frontier
Mon 5/48:38 am
SAN
- LAX
1 stop13h 26m
Frontier
Deal found 3/30![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/283:49 pm
LAX
- SAN
1 stop19h 45m
Frontier
Tue 5/54:17 pm
SAN
- LAX
1 stop5h 08m
Frontier
Deal found 3/31![Frontier logo]()
$104
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/288:00 am
LAX
- SAN
1 stop12h 04m
Frontier
Wed 4/298:00 am
SAN
- LAX
1 stop15h 14m
Frontier
Deal found 4/1![Frontier logo]()
$136
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/295:11 pm
LAX
- SAN
2 stops15h 23m
Frontier
Wed 5/64:17 pm
SAN
- LAX
1 stop4h 53m
Frontier
Deal found 4/1![Frontier logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:55 am
LAX
- SAN
1 stop8h 59m
Frontier
Mon 5/48:38 am
SAN
- LAX
1 stop13h 26m
Frontier
Deal found 3/31![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/310:59 pm
LAX
- SAN
1 stop8h 47m
Frontier
Wed 5/64:17 pm
SAN
- LAX
1 stop5h 08m
Frontier
Deal found 3/31![Frontier logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/610:20 pm
LAX
- SAN
1 stop14h 23m
Frontier
Mon 5/111:38 pm
SAN
- LAX
1 stop7h 47m
Frontier
Deal found 3/31![Frontier logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/610:20 pm
LAX
- SAN
1 stop14h 23m
Frontier
Sat 5/166:25 am
SAN
- LAX
1 stop17h 51m
Frontier
Deal found 3/29![Frontier logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1510:20 pm
LAX
- SAN
1 stop19h 39m
Frontier
Mon 5/181:38 pm
SAN
- LAX
1 stop7h 47m
Frontier
Deal found 3/31![Frontier logo]()
$135
One-way flights from Riverside to San DiegoSearch for one-way flight options from Riverside to San Diego. Find affordable one-way fares based on user searches. Data last updated April 3, 2026.
Search for one-way flight options from Riverside to San Diego. Find affordable one-way fares based on user searches. Data last updated April 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/283:49 pm
LAX
- SAN
1 stop19h 45m
Frontier
Deal found 3/31![Frontier logo]()
$54
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:30 am
LAX
- SAN
1 stop17h 20m
Frontier
Deal found 4/1![Frontier logo]()
$63
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/213:49 pm
LAX
- SAN
1 stop19h 45m
Frontier
Deal found 3/31![Frontier logo]()
$64
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2710:59 pm
LAX
- SAN
1 stop14h 30m
Frontier
Deal found 3/31![Frontier logo]()
$65
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/312:02 pm
LAX
- SAN
1 stop9h 10m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$72
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2710:20 pm
LAX
- SAN
1 stop14h 23m
Frontier
Deal found 3/29![Frontier logo]()
$73
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/28:27 pm
LAX
- SAN
1 stop24h 45m
Frontier
Deal found 3/31![Frontier logo]()
$78
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/212:24 pm
LAX
- SAN
1 stop10h 42m
Frontier
Deal found 3/31![Frontier logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/256:15 am
LAX
- SAN
1 stop16h 51m
Frontier
Deal found 3/29![Frontier logo]()
$83
Find 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 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $104 (Kiwi.com) |
One-way from | $54 (Kiwi.com) |
Popular in | January |
Cheapest in | February |
Average price | $194 |
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 3, 2026.
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
Cheapest round-trip
Los AngelesSan Diego
LAX - SAN
LAXSAN
Los Angeles
Tue 6/2
12:02 pm-11:47 pm
2 stops11h 45m
San Diego
Mon 6/8
1:38 pm-9:25 pm
1 stop7h 47m
$196
Los AngelesSan Diego
LAX - SAN
LAXSAN
Los Angeles
Tue 5/5
6:13 am-12:59 pm
1 stop6h 46m
San Diego
Tue 5/5
3:35 pm-9:14 pm
1 stop5h 39m
$217
Los AngelesSan Diego
LAX - SAN
LAXSAN
Los Angeles
Sat 4/18
8:28 am-9:24 am
Nonstop0h 56m
San Diego
Sat 4/25
10:05 am-11:14 am
Nonstop1h 09m
$239
Los AngelesSan Diego
LAX - SAN
LAXSAN
Los Angeles
Thu 6/4
9:00 am-10:08 am
Nonstop1h 08m
San Diego
Sun 6/7
8:32 pm-9:45 pm
Nonstop1h 13m
$239
Los AngelesSan Diego
LAX - SAN
LAXSAN
Los Angeles
Thu 5/14
9:25 am-10:19 am
Nonstop0h 54m
San Diego
Thu 5/21
6:15 am-7:33 am
Nonstop1h 18m
$239
Los AngelesSan Diego
LAX - SAN
LAXSAN
Los Angeles
Fri 5/15
10:20 pm-11:15 pm
Nonstop0h 55m
San Diego
Mon 5/18
10:59 am-12:08 pm
Nonstop1h 09m
$239
Quickest round-trip
Los AngelesSan Diego
LAX - SAN
LAXSAN
Los Angeles
Fri 5/1
8:28 am-9:24 am
Nonstop0h 56m
San Diego
Fri 5/8
3:15 pm-4:15 pm
Nonstop1h 00m
$239
Los AngelesSan Diego
LAX - SAN
LAXSAN
Los Angeles
Thu 4/23
6:10 pm-7:04 pm
Nonstop0h 54m
San Diego
Sun 4/26
7:45 pm-8:50 pm
Nonstop1h 05m
$239
Los AngelesSan Diego
LAX - SAN
LAXSAN
Los Angeles
Sat 4/18
8:28 am-9:24 am
Nonstop0h 56m
San Diego
Sun 4/19
7:45 pm-8:50 pm
Nonstop1h 05m
$239
Cheapest one-way
Los AngelesSan Diego
LAX - SAN
LAXSAN
Los Angeles
Tue 6/16
9:00 am-7:36 pm
2 stops10h 36m
$197
Showing 1-10 of 21 resultsSorted by cheapest first
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.
LAX-SAN
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.
Cheapflights Insights
Everything you need to know about your flight from Riverside to San Diego
R1V-SAN
LAX-SAN
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 2, 2026.
Booking 23 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, April is the cheapest month in which you can book a flight from Riverside to San Diego (average of $79). Flying from Riverside to San Diego in January is currently the most expensive (average of $179). 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 3, 2026.
Unlike in the afternoon, when flights are generally more expensive, you can save up to 19% on flights from Riverside to San Diego by exploring options for tickets in the morning.
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 3, 2026.
The most flights from R1V to SAN are scheduled on a Thursday (42 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (23 on average).
How much does it cost to fly round-trip from Riverside to San Diego?
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 3, 2026.
Read through reviews of airlines operating flights from Riverside to San Diego, such as Delta,United Airlines, andSpirit Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Boarding
8.1
Overall
7.9
Food
7.2
Comfort
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Entertainment
7.8
Boarding
8.1
Overall
7.9
Food
7.2
Comfort
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Entertainment
7.8
Boarding
8.1
Overall
7.9
Food
7.2
Comfort
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Entertainment
7.8
Boarding
8.1
Overall
7.9
Food
7.2
Comfort
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
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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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$79 | Average$105 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$179 | Average$244 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$179 | Average$238 | FlexibilityNo cancel fee | On-timeN/A |