San Diego

$56+ 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 12/16. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SAN
dic. 12 — dic. 191
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Cheapflights Tip: The best prices from Irvine to San Diego are usually found in January or July, booked 66 days in advance, depart on a Tuesday or Thursday and return on a Tuesday

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 noviembre 12, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
mié. 12/101:57 pmLAX - SAN
1 stop3h 56mFrontier
mié. 1/710:52 amSAN - LAX
1 stop5h 56mFrontier
Deal found 11/11$85
This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
mar. 12/91:57 pmLAX - SAN
1 stop3h 56mFrontier
mié. 12/106:25 amSAN - LAX
1 stop4h 14mFrontier
Deal found 11/11$111
This Kiwi.com deal was found by Cheapflights users on 11/10. 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.
sáb. 12/64:12 pmLAX - SAN
1 stop3h 55mFrontier
lun. 12/83:05 pmSAN - LAX
1 stop19h 34mFrontier
Deal found 11/10$118
This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
jue. 12/116:40 amLAX - SAN
1 stop12h 35mFrontier
dom. 12/142:30 pmSAN - LAX
1 stop21h 16mFrontier
Deal found 11/11$126
This Kiwi.com deal was found by Cheapflights users on 11/9. 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.
mié. 12/31:57 pmLAX - SAN
1 stop3h 56mFrontier
mié. 12/106:25 amSAN - LAX
1 stop4h 14mFrontier
Deal found 11/9$127
This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
mar. 12/97:00 amLAX - SAN
1 stop15h 46mFrontier
mar. 12/166:34 amSAN - LAX
1 stop12h 04mFrontier
Deal found 11/11$132
This Kiwi.com deal was found by Cheapflights users on 11/9. 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.
mar. 12/21:57 pmLAX - SAN
1 stop6h 10mFrontier
mié. 12/36:25 amSAN - LAX
1 stop12h 13mFrontier
Deal found 11/9$134
This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
vie. 12/58:57 pmLAX - SAN
1 stop23h 10mFrontier
lun. 12/84:57 pmSAN - LAX
1 stop7h 32mFrontier
Deal found 11/12$135
This Kiwi.com deal was found by Cheapflights users on 11/10. 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.
sáb. 12/64:12 pmLAX - SAN
1 stop3h 55mFrontier
dom. 12/73:18 pmSAN - LAX
1 stop4h 47mFrontier
Deal found 11/10$146

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 noviembre 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$85
(Kiwi.com)

One-way from

$56
(Kiwi.com)

Popular in

November

Cheapest in

January

Average price

$277
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
Highest demand for flights based on searches. 9% potential increase in price ($21 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Average for round-trip flights in November 2025

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 noviembre 12, 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

vie. 12/5

8:57 pm-8:07 pm

1 stop23h 10m

San Diego

lun. 12/8

4:57 pm-12:29 am

1 stop7h 32m

$135

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

mié. 12/10

8:15 am-9:16 am

Nonstop1h 01m

San Diego

mié. 1/7

7:55 pm-9:10 pm

Nonstop1h 15m

$179

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

lun. 1/5

9:21 am-10:30 am

Nonstop1h 09m

San Diego

mar. 1/13

11:08 am-12:18 pm

Nonstop1h 10m

$179

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

lun. 2/2

9:55 pm-10:47 pm

Nonstop0h 52m

San Diego

jue. 3/12

7:30 pm-8:36 pm

Nonstop1h 06m

$179

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

vie. 1/2

8:45 pm-9:38 pm

Nonstop0h 53m

San Diego

mar. 1/6

6:30 am-7:40 am

Nonstop1h 10m

$179

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

dom. 2/1

9:00 am-9:57 am

Nonstop0h 57m

San Diego

vie. 3/13

6:15 am-7:24 am

Nonstop1h 09m

$179

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

sáb. 1/17

9:00 am-9:57 am

Nonstop0h 57m

San Diego

vie. 1/23

3:45 pm-4:56 pm

Nonstop1h 11m

$179

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

vie. 1/16

9:00 am-9:57 am

Nonstop0h 57m

San Diego

jue. 1/22

7:55 pm-9:10 pm

Nonstop1h 15m

$179

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

mié. 2/4

9:55 pm-10:47 pm

Nonstop0h 52m

San Diego

vie. 3/13

10:00 am-11:11 am

Nonstop1h 11m

$179

Los AngelesSan Diego

LAX - SAN

LAXSAN

Los Angeles

vie. 2/6

6:20 pm-7:13 pm

Nonstop0h 53m

San Diego

mar. 3/10

3:59 pm-4:58 pm

Nonstop0h 59m

$179

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/9

Showing 1-10 of 21 results
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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 November 7, 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, January is the cheapest month in which you can book a flight from Irvine to San Diego (average of $63). Flying from Irvine to San Diego in August 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 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 noviembre 12, 2025.

It’s typically best to fly out from Irvine to San Diego in the evening. Doing so could potentially save you 15% on the flight price compared to flying in the afternoon, which is usually more expensive.

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 Tuesday mornings when fares are most often at their lowest. Monday at noon 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 noviembre 12, 2025.

The most flights from IR9 to SAN are scheduled on a Wednesday (41 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (11 on average).

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 noviembre 12, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and Spirit Airlines from Irvine to San Diego. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 33 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?

  • How long is the flight from Irvine to San Diego?

    Departing from Irvine to San Diego will take you 1h 01m. Airlines will cover a distance of 109 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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: Aeromexico (93%), Copa Airlines (90%), Air New Zealand (89%).

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

    Looking at all options, your cheapest flight can be booked for $153. While the most popular route (Los Angeles - San Diego) can be booked for $163 on average, our data indicates $321 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, January is the cheapest month in which you can book a flight from Irvine to San Diego (average of $63). Flying from Irvine to San Diego in August 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.

See more FAQs

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
Coronado
La Mesa
Poway
Lemon Grove
National City

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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 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 noviembre 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$64Average$111FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$179Average$239FlexibilityNo cancel feeOn-time69%
DeltaCheapest$179Average$205FlexibilityNo cancel feeOn-timeN/A

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