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$41+ 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 7/3. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SAN
Jun 21 — Jun 281
Sat 6/21
Sat 6/28
1 adult, Economy
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Cheapflights Tip: The best prices from Irvine to San Diego are usually found in January or July, booked 82 days in advance, depart on a Tuesday or Thursday 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 June 16, 2025.

Round-trip from

$84
(FlightHub)

One-way from

$41
(FlightHub)

Popular in

February

Cheapest in

January

Average price

$219
From Irvine to San Diego
Search Deals
One-way flight from Irvine to San Diego
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($1 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 16, 2025.

This FlightHub deal was found by Cheapflights users on 6/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/16:52 pmLAX - SAN
1 stop4h 37mSpirit Airlines
Wed 7/26:15 amSAN - LAX
1 stop8h 00mSpirit Airlines
Deal found 6/16$84
This Mytrip deal was found by Cheapflights users on 6/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/16:52 pmLAX - SAN
1 stop4h 37mMultiple Airlines
Wed 7/211:43 amSAN - LAX
2 stops26h 32mMultiple Airlines
Deal found 6/16$177
This Delta deal was found by Cheapflights users on 6/14. 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 7/109:59 pmLAX - SAN
Nonstop0h 55mDelta
Sat 7/129:59 amSAN - LAX
Nonstop1h 10mDelta
Deal found 6/14$179
This Alaska Airlines deal was found by Cheapflights users on 6/15. 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.
Thu 7/106:41 pmLAX - SAN
1 stop13h 40mAlaska Airlines
Sun 7/139:32 pmSAN - LAX
1 stop9h 48mAlaska Airlines
Deal found 6/15$198
This United Airlines deal was found by Cheapflights users on 6/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/289:05 amLAX - SAN
Nonstop1h 04mUnited Airlines
Mon 7/78:44 pmSAN - LAX
Nonstop1h 11mUnited Airlines
Deal found 6/16$249

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 June 16, 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

Tue 7/1

6:52 pm-11:29 pm

1 stop4h 37m

San Diego

Wed 7/2

6:15 am-2:15 pm

1 stop8h 00m

$84

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

Tue 7/1

6:52 pm-11:29 pm

1 stop4h 37m

San Diego

Wed 7/2

11:43 am-2:15 pm

2 stops26h 32m

$177

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

Thu 7/10

9:59 pm-10:54 pm

Nonstop0h 55m

San Diego

Sat 7/12

9:59 am-11:09 am

Nonstop1h 10m

$179

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

Thu 7/10

6:41 pm-8:21 am

1 stop13h 40m

San Diego

Sun 7/13

9:32 pm-7:20 am

1 stop9h 48m

$198

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

Sat 6/28

9:05 am-10:09 am

Nonstop1h 04m

San Diego

Mon 7/7

8:44 pm-9:55 pm

Nonstop1h 11m

$249

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

Thu 7/3

10:18 pm-7:13 am

1 stop8h 55m

$41

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

Mon 9/1

10:42 pm-6:37 pm

1 stop19h 55m

$77

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

Sat 8/2

10:40 am-4:09 pm

1 stop5h 29m

$126

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

Sat 6/21

10:18 pm-12:15 pm

2 stops13h 57m

$132

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

Sat 7/26

10:32 am-9:55 pm

2 stops11h 23m

$184

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

Showing 1-10 of 12 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 June 13, 2025.

To ensure you get the cheapest price possible for a flight from Irvine to San Diego, you should look to book at least 82 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 June 16, 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 Thursday at noon when fares are most often at their lowest. Monday evenings 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 June 16, 2025.

The most flights from IR9 to SAN are scheduled on a Monday (50 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (38 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 June 16, 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 Hawaiian Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,963 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,500 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,801 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 43 inbound flights from Irvine per day from 3 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?

    Within the past month, 3 users have taken a look at flights from Irvine to San Diego.

  • 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 $41 on Spirit Airlines. Other airlines that offer cheap prices include Alaska Airlines from $77 and Hawaiian Airlines from $126 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: ITA Airways (98%), Air China (96%), Copa Airlines (95%).

  • 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 $96 on average our data indicates $297 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
National City
Imperial Beach
La Mesa
Alpine
Lemon Grove
Poway
Santee
Coronado

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Top 3 airlines flying from Irvine to San Diego

Discover the top 3 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 June 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$64Average$116FlexibilityNo cancel feeOn-time65%
DeltaCheapest$154Average$202FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$159Average$239FlexibilityNo cancel feeOn-time69%

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