San Diego

$47+ Cheap flights from Irvine, 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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SAN
abr. 30 — may. 71
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Cheapflights Tip: The best prices from Irvine 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 Irvine to San Diego

Keep the following information in mind while searching for Irvine to San Diego flight deals. Data was last updated abril 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$99
(Cheapflightsfares)

One-way from

$47
(Expedia)

Popular in

February

Cheapest in

January

Average price

$213
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 Irvine to San Diego
One-way flight from Irvine to San Diego
High demand for flights, 2% potential price rise
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Average for round-trip flights in April 2025

Find flight deals from Irvine to San Diego

Cheapest flights from Irvine to San Diego
Explore the most affordable flight options available from Irvine to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 25, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/24. 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.
mar. 5/1310:30 amLAX - SAN
1 stop9h 23mSpirit Airlines
mié. 5/216:15 amSAN - LAX
1 stop3h 41mSpirit Airlines
Deal found 4/24$99
This Expedia deal was found by Cheapflights users on 4/23. 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.
sáb. 5/246:52 pmLAX - SAN
1 stop12h 21mMultiple Airlines
mié. 6/46:15 amSAN - LAX
2 stops5h 55mMultiple Airlines
Deal found 4/23$162
This Delta deal was found by Cheapflights users on 4/24. 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.
jue. 5/158:25 amLAX - SAN
Nonstop0h 56mDelta
sáb. 5/1710:01 amSAN - LAX
Nonstop1h 09mDelta
Deal found 4/24$179
This United Airlines deal was found by Cheapflights users on 4/24. 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.
sáb. 5/178:30 amLAX - SAN
Nonstop1h 05mUnited Airlines
jue. 5/226:15 amSAN - LAX
Nonstop1h 11mUnited Airlines
Deal found 4/24$186
This Alaska Airlines deal was found by Cheapflights users on 4/24. 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.
lun. 7/710:42 pmLAX - SAN
1 stop13h 01mAlaska Airlines
dom. 7/136:57 pmSAN - LAX
1 stop12h 23mAlaska Airlines
Deal found 4/24$190

Cheapflights Fare Finder

Customize your flight search to find flights from Irvine 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 abril 25, 2025.
Use the filters below to find and compare flights from Irvine to San Diego that are best for you.

Fly from

Irvine

Fly to

San Diego

Route

Depart

Return

Price

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

mar. 5/13

10:30 am-7:53 pm

1 stop9h 23m

San Diego

mié. 5/21

6:15 am-9:56 am

1 stop3h 41m

$99

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

sáb. 5/24

6:52 pm-7:13 am

1 stop12h 21m

San Diego

mié. 6/4

6:15 am-12:10 pm

2 stops5h 55m

$162

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

jue. 5/15

8:25 am-9:21 am

Nonstop0h 56m

San Diego

sáb. 5/17

10:01 am-11:10 am

Nonstop1h 09m

$179

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

sáb. 5/17

8:30 am-9:35 am

Nonstop1h 05m

San Diego

jue. 5/22

6:15 am-7:26 am

Nonstop1h 11m

$186

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

lun. 7/7

10:42 pm-11:43 am

1 stop13h 01m

San Diego

dom. 7/13

6:57 pm-7:20 am

1 stop12h 23m

$190

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

mié. 5/28

6:52 pm-11:56 pm

1 stop5h 04m

$47

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

lun. 6/23

10:42 pm-4:09 pm

1 stop17h 27m

$87

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

dom. 6/8

6:50 pm-7:13 am

3 stops36h 23m

$155

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

mar. 5/27

11:05 pm-10:15 am

2 stops11h 10m

$183

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

dom. 5/25

9:35 am-9:36 pm

2 stops12h 01m

$184

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/24

Showing 1-10 of 11 results
1
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Best time to book a flight from Irvine to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Irvine 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.

Cheapflights Insights

Everything you need to know about your flight from Irvine to San Diego

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

Use this chart to determine the optimal time to book a round-trip flight from Irvine to San Diego. Price data was last updated on April 18, 2025.

To ensure you get the cheapest price possible for a flight from Irvine to San Diego, you should look to book at least 63 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, August is the cheapest month in which you can book a flight from Irvine to San Diego (average of $286). Flying from Irvine 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 IR9 to SAN?

Find hourly flight availability from Irvine 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 abril 25, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Irvine to San Diego as you normally would.

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

Use this chart to determine the cheapest time to fly round-trip from Irvine to San Diego. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Irvine 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 Irvine to San Diego

Explore weekly flight availability from Irvine 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 abril 25, 2025.

The most flights from IR9 to SAN are scheduled on a Thursday (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 abril 25, 2025.
To help decide which airline to fly from Irvine to San Diego, see what other customers have to say about Alaska Airlines, Delta and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.1

Boarding

8.2

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

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

Entertainment

7.1

Boarding

8.2

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

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

Entertainment

7.1

Boarding

8.2

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

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

Entertainment

7.1

Boarding

8.2

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

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

Entertainment

7.1

Boarding

8.2

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

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

Entertainment

7.1

Boarding

8.2

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

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 Irvine 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 Irvine?

    Most people fly into San Diego (SAN) if they book a flight to San Diego from Irvine. On average, San Diego has 40 inbound flights from Irvine per day from 4 airlines. San Diego is conveniently located just 2.6 mi from San Diego’s city center.

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

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

    One-way options have recently been found by users for as low as $47 on Spirit Airlines. Other airlines that offer cheap prices include Alaska Airlines from $87 and United Airlines from $183 one-way.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Irvine to San Diego on time: Air China (94%), ITA Airways (89%), China Eastern (88%).

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

    Looking at all options, your cheapest flight can be booked for $179. While the most popular route (Los Angeles - San Diego) can be booked for $99 on average our data indicates $199 when flying from Irvine to San Diego.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Irvine 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 Irvine to San Diego?

    Currently, August is the cheapest month in which you can book a flight from Irvine to San Diego (average of $286). Flying from Irvine 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 Irvine?

Book flights to Irvine 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

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Alternative routes for Irvine to San Diego

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

Top 4 airlines flying from Irvine to San Diego

Discover the top 4 airlines that operate flights from Irvine 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 abril 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$64Average$113FlexibilityNo cancel feeOn-time65%
DeltaCheapest$154Average$210FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$159Average$239FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$241Average$598FlexibilityNo cancel feeOn-time75%

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